You should read the following discussion and analysis of our financial condition
and results of operations together with the "Selected Consolidated Financial
Data" section of this Quarterly Report on Form 10-Q (this "Quarterly Report")
and our consolidated financial statements and related notes included elsewhere
in this Quarterly Report. Some of the information contained in this discussion
and analysis or set forth elsewhere in this Quarterly Report, including
information with respect to our plans and strategy for our business and related
financing includes forward-looking statements that involve risks and
uncertainties. Many factors, including those factors set forth in the "Risk
Factors" section of this Quarterly Report, may materially and adversely affect
our actual results, which may differ materially from the results described in or
implied by the forward-looking statements contained in the following discussion
and analysis.

Overview

We are a clinical-stage, microglia-focused biotechnology company dedicated to
improving the lives of patients, caregivers, and families affected by rare and
common neurodegenerative diseases by pursuing the development of
disease-modifying therapeutics to restore the vigilance of microglia. Microglia
are the sentinel immune cells of the brain and play a critical role in
maintaining central nervous system (CNS) health and responding to damage caused
by disease. Leveraging recent research implicating microglial dysfunction in
neurodegenerative diseases, we utilize a precision medicine approach to develop
a pipeline of therapeutic candidates, initially addressing genetically defined
patient subpopulations, that we believe will activate and restore microglial
function. Our first therapeutic candidates are designed to activate Triggering
Receptor Expressed on Myeloid Cells 2 (TREM2), a key microglial receptor protein
that mediates responses to environmental signals in order to maintain brain
health and whose dysfunction is linked to neurodegeneration.

We believe that each of the therapeutic candidates in our pipeline has the
potential to be developed for multiple neurodegenerative diseases. Our precision
medicine approach begins with rare, genetically defined diseases for which
microglial dysfunction is believed to be a key driver of disease pathology and
then utilizes findings from these efforts to inform expansion into larger and
more common neurodegenerative diseases. Our strategy has the potential to
mitigate downstream translational risk as we seek to advance our programs
through early development and into the clinic. We believe this iterative,
sequential approach is a key differentiator, potentially allowing us to generate
clinical proof-of-concept (PoC) efficiently and leverage our initial development
programs as well as research by others, in pursuing additional neurodegenerative
disease opportunities.

Our lead candidate, VGL101, is a fully human monoclonal antibody (mAb) that is
designed to activate TREM2. We are initially developing VGL101 for the treatment
of adult-onset leukoencephalopathy with axonal spheroids and pigmented glia
(ALSP), a rare, genetically defined, and fatal neurodegenerative disease caused
by microglial dysfunction.

ALSP affects an estimated 10,000 people in the U.S., with about 1,000 to 2,000
new cases annually. ALSP has been diagnosed in countries around the world, with
major clusters in North America (U.S. and Canada), Central and Northern Europe,
and Asia. In July 2022, the FDA granted orphan drug designation for VGL101 for
the treatment of ALSP. In October 2022, the FDA granted Fast Track designation
for VGL101 for the treatment of ALSP, further acknowledging the significant
unmet need of ALSP patients. ALSP is caused by loss-of-function mutations in the
Colony Stimulating Factor 1 Receptor (CSF1R), a receptor that shares a common
downstream signaling pathway with TREM2. The therapeutic rationale for VGL101 is
to compensate for CSF1R loss-of-function by activating TREM2. We have generated
robust preclinical evidence that suggests TREM2 agonism can rescue CSF1R
loss-of-function We initiated our Phase 1 trial in December 2021 and have
completed dosing of the 20 mg/kg single ascending dose (SAD) cohort and the 20
mg/kg multiple ascending dose (MAD) cohort in the U.S., without any safety
signals. Although we believe that 20 mg/kg is a clinically-relevant dose in
ALSP, we continue to engage with the FDA regarding the partial clinical hold at
doses above 20 mg/kg to maintain optionality to support patients with rare and
common neurodegenerative diseases. Further, we received approval from the
Australian Human Research Ethics Committee (HREC) to initiate a Phase 1 trial of
VGL101 in healthy volunteers without dosing restrictions and have completed
dosing of 30 mg/kg and 40 mg/kg SAD cohorts and are cleared to initiate a 60
mg/kg SAD cohort in Australia. In November 2022, we reported interim topline
data from the Phase 1 trial from the SAD cohorts up to and including 40 mg/kg as
well as the 20 mg/kg MAD cohort. Based on these data, VGL101 demonstrated
favorable safety, tolerability and PK profiles. Further, VGL101 achieved dose
dependent, robust and durable decreases in CSF sTREM2 and demonstrated proof of
target engagement further supporting its expected mechanism of action. We
believe these interim Phase 1 results support the planned initiation of a Phase
2 trial in ALSP patients at 20 mg/kg.

We believe engagement with patients and the scientific and provider communities
is central to our approach in rare neurodegenerative diseases. In September
2021, we began a natural history study of ALSP patients to better characterize
the patient journey, inform our clinical trial design, and facilitate
recruitment into our clinical trials. We also actively support a patient
advocacy organization and have established the world's first patient-facing ALSP
informational website to build disease awareness. In addition, we launched a
global ALSP patient registry to further understand patient and caregiver
journey, disease burden, and health economic outcomes.

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We are also developing novel small molecule TREM2 agonist product candidates
suitable for oral delivery to treat common neurodegenerative diseases associated
with microglial dysfunction, with an initial focus on Alzheimer's disease (AD)
in genetically defined subpopulations. In the first quarter of 2022, we
initiated IND-enabling studies for certain of these product candidates. Our
small molecule product candidates have a different mechanism of action and bind
to a different location than VGL101, providing potential additional optionality
in positioning these molecules in different patient populations and potential
differentiation from TREM2 antibody therapeutics.

We believe our microglia focus, precision medicine approach, and pipeline, which spans multiple modalities, strongly position us to become a differentiated leader in the neurodegenerative therapeutic space.

Recent Developments



As part of a continuous evaluation of our programs, we have elected to
prioritize VGL101 in ALSP and our small molecule TREM2 agonist programs. Based
on our recent findings that VGL101 and our small molecule program candidates
have different mechanisms of action and bind to different locations, we no
longer believe that the originally planned Phase 1b biomarker trial of VGL101
will inform clinical development of the small molecule program candidates in AD
and are no longer planning to conduct this biomarker trial. We also plan to
defer the initiation of the planned Phase 2 clinical trial of VGL101 for the
treatment of cerebral adrenoleukodystrophy (cALD). This strategic prioritization
together with the proceeds of the August 2022 private placement is expected to
extend our cash runway into the first quarter of 2025.

Since our inception, we have devoted substantially all of our efforts to
organizing and staffing our company, research and development activities,
business planning, raising capital, building our intellectual property portfolio
and providing general and administrative support for these operations. To date,
we have funded our operations primarily through proceeds from our initial public
offering of our common stock, the sale of shares of our convertible preferred
stock and a Simple Agreement for Future Equity, or SAFE. As of September 30,
2022, we had $203.9 million of cash and cash equivalents. As of September 30,
2022, we raised aggregate gross proceeds of $313.0 million from the sale of
equity securities as follows:


During the period from June 22, 2020 (inception) to December 31, 2021, we raised
$5.0 million gross proceeds from the SAFE which was subsequently converted to
1,963,093 shares of Series A convertible preferred stock, $45.0 million gross
proceeds from the issuance of 17,687,840 shares of Series A convertible
preferred stock at a purchase price of $2.547 per share, and $90.0 million gross
proceeds from the issuance of 25,657,096 shares of Series B convertible
preferred stock at $3.5078 per share. Costs associated with these issuances were
approximately $0.6 million.


During the nine months ended September 30, 2022, we completed the initial public
offering of our common stock, in which we issued an aggregate of 7,000,000
shares of common stock at a price of $14.00 per share, for gross cash proceeds
of $98.0 million, before underwriting discounts and commissions. We received
approximately $88.0 million in net proceeds, after deducting underwriting
discounts, commissions and offering expenses. We also completed a private
placement in which we issued 7,293,084 shares of common stock at a price of
$7.30 per share and 2,980,889 pre-funded warrants at a purchase price of
$7.2999, for gross proceeds of $75.0 million, before deducting fees to the
placement agent and other offering expenses. Based on our current operating
plan, we believe that our existing cash and cash equivalents will be sufficient
to fund our planned operating expenses and capital expenditure requirements into
the first quarter of 2025.

We have incurred significant operating losses since the commencement of our
operations. Our ability to generate product revenue sufficient to achieve
profitability will depend heavily on the successful development and eventual
commercialization of one or more of our current therapeutic candidates or any
future therapeutic candidates. Our accumulated deficit was $71.8 million at
December 31, 2021 and $121.7 million at September 30, 2022, respectively. We
expect to continue to incur significant losses for the foreseeable future as we
advance our current and future therapeutic candidates through preclinical and
clinical development, continue to build our operations and transition to
operating as a public company.

Our net losses may fluctuate significantly from period to period, depending on
the timing of expenditures on our research and development activities. Our
primary use of cash is to fund operating expenses, which consist primarily of
research and development and general and administrative expenses. The timing of
payment of these expenses has an effect on cash used to fund operating expenses,
as reflected in the change in our outstanding accounts payable and accrued
expenses.

                                       22
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We expect to continue to incur net operating losses for at least the next
several years, and we expect our research and development expenses, general and
administrative expenses, and capital expenditures will continue to increase. We
expect our expenses and capital requirements will increase significantly in
connection with our ongoing activities as we:

continue our ongoing and planned research and development of our VGL101 and small molecule TREM2 agonist program;

initiate preclinical studies and clinical trials for any additional therapeutic candidates that we may pursue in the future;


expand our product pipeline based on TREM2 and other microglia targets across
multiple therapeutic modalities, through internal discovery and development, or
through strategic collaborations or alliances with academic organizations,
pharmaceutical or biotechnology companies;

seek regulatory approvals for any therapeutic candidates that successfully complete clinical trials;

invest in capital equipment in order to expand our research and development activities;

attract, hire and retain additional clinical, scientific, quality control, and manufacturing management and administrative personnel;

add clinical, operational, financial and management information systems and personnel, including personnel to support our product development;

develop, maintain, expand, protect and enforce our intellectual property portfolio, including patents, trade secrets and know-how;

acquire or in-license other therapeutic candidates and technologies;

expand our operations in the United States and to other geographies;

incur additional legal, accounting, investor relations and other general and administrative expenses associated with operating as a public company; and


establish a sales, marketing and distribution infrastructure, either ourselves
or in partnership with others, to commercialize any therapeutic candidates, if
approved.

We will not generate revenue from product sales unless and until we successfully
complete clinical development and obtain regulatory approval for one or more of
our therapeutic candidates. If we obtain regulatory approval for any of our
therapeutic candidates, we expect to incur significant expenses related to
product sales, marketing and distribution to the extent that such sales,
marketing and distribution are not the responsibility of potential
collaborators. We may also require additional capital to pursue in-licenses or
acquisitions of other drug candidates. Further, we expect to incur additional
costs associated with operating as a public company.

We also expect to increase the size of our administrative function to support
the growth of our business. Our net losses may fluctuate significantly from
quarter-to-quarter and year-to-year, depending on the timing of our clinical
trials and our expenses related to other research and development activities.

As a result, we will require substantial additional funding to develop our
therapeutic candidates and support our continuing operations. Until such time
that we can generate significant revenue from product sales or other sources, we
expect to finance our operations through the sale of equity, debt financings or
other capital sources, which could include proceeds from potential
collaborations, strategic partnerships or marketing, distribution, licensing or
other strategic arrangements with third parties. We may be unable to raise
additional funds or to enter into such agreements or arrangements on favorable
terms, or at all. Our ability to raise additional funds may be adversely
impacted by potential worsening global economic conditions and the recent
disruptions to, and volatility in, the credit and financial markets in the
United States and worldwide resulting from the ongoing COVID-19 pandemic and
otherwise. If we fail to raise capital or enter into such agreements as, and
when, needed, we may have to significantly delay, scale back or discontinue the
development or commercialization of our therapeutic candidates or grant rights
to develop and market therapeutic candidates that we would otherwise prefer to
develop and market ourselves.

Our failure to obtain sufficient funds with acceptable terms could have a
material adverse effect on our business, results of operations or financial
condition, including requiring us to have to delay, reduce or eliminate our
product development or future commercialization efforts. Because of the numerous
risks and uncertainties associated with pharmaceutical product development, we
are unable to accurately predict the amount of increased expenses or timing, or
if we will be able to achieve or maintain profitability. If we fail to become
profitable or are unable to sustain profitability on a continuing basis, then we
may be unable to continue our operations at planned levels and be forced to
reduce or terminate our operations. We cannot provide assurance that we will
ever be profitable or generate positive cash flow from operating activities.

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Impact of COVID-19 on Our Operations



In March 2020, the World Health Organization declared the outbreak of COVID-19 a
global pandemic. We are subject to a number of risks associated with the
COVID-19 global pandemic, including potential delays associated with our ongoing
preclinical studies and clinical trials. COVID-19 may have an adverse impact on
our operations, supply chains and distribution systems or those of our
third-party vendors and collaborators, and increase expenses, including as a
result of impacts associated with preventive and precautionary measures that are
being taken, such as restrictions on travel and border crossings, quarantine
polices and social distancing. We and our third-party vendors and collaborators
may experience disruptions in supply of items that are essential for our
research and development activities. In addition, the spread of COVID-19 has
disrupted global healthcare and healthcare regulatory systems which could divert
healthcare resources away from, or materially delay, FDA approval and approval
by other health authorities worldwide with respect to our therapeutic
candidates. Furthermore, our clinical trials may be negatively affected by the
COVID-19 outbreak. Site initiation, patient enrollment and patient follow-up
visits may be delayed, for example, due to prioritization of hospital resources
toward the COVID-19 outbreak, travel restrictions, the inability to access sites
for initiation and monitoring, and difficulties recruiting or retaining patients
in our planned clinical trials. The emergence of additional variants, as well as
reduced efficacy of vaccines over time and the possibility that a large number
of people decline to get vaccinated or receive booster shots, creates inherent
uncertainty as to the future of our business, our industry and the economy in
general in light of the pandemic. We cannot at this time predict the specific
extent, duration, or full impact that the COVID-19 outbreak will have on our
financial condition and operations. If we do not successfully commercialize any
of our therapeutic candidates, we will be unable to generate product revenue or
achieve profitability.

Exclusive License Agreement with Amgen Inc.



In July 2020, we entered into an exclusive license agreement, or the Amgen
Agreement, with Amgen Inc., or Amgen, pursuant to which we have been granted an
exclusive, royalty-bearing license to certain intellectual property rights owned
or controlled by Amgen, to commercially develop, manufacture, use, distribute
and sell therapeutic products containing compounds that bind to TREM2. In
addition, we are required to reimburse Amgen for amounts it paid to its contract
manufacturers on our behalf. See Note 11 to the condensed consolidated financial
statements appearing elsewhere in this Quarterly Report for more information on
the Amgen Agreement.

As initial consideration for the license, we paid an upfront payment of $0.5
million and also recognized an obligation to issue shares of Series A
convertible preferred stock with an antidilution provision, or the Related Party
Antidilution Obligation. As Amgen reported in its Schedule 13G filed with the
SEC on January 11, 2022, as of that date, Amgen owns approximately 11.3% of our
outstanding shares of capital stock. As additional consideration for the
license, we are required to pay Amgen up to $80.0 million in the aggregate upon
the achievement of specified regulatory milestones for the first monoclonal
antibody TREM2 agonist (mAb) product and the first small molecule TREM2 agonist
product and aggregate milestone payments of up to $350.0 million upon the
achievement of specific commercial milestones across all mAb products and small
molecule products. No regulatory or commercial milestones have been achieved to
date under the Amgen Agreement. We are also required to pay tiered royalties of
low to mid single-digit percentages on annual net sales of the products covered
by the license. In the event that the exploitation of a product is not covered
by a valid claim within the licensed patent rights, then the royalty rate with
respect to the net sales shall be subject to a customary reduction by a certain
percentage. The royalty term will terminate on a country-by-country basis on the
later of (i) the expiration date of the last valid claim within the licensed
patent rights and (ii) the tenth (10th) anniversary of the first commercial sale
of such product in such country.

In connection with the license agreement, Amgen entered into certain stockholder
agreements related to this investment. See "Certain Relationships and Related
Party Transactions-Series A Preferred Stock Financings."

Components of Our Results of Operations

Operating Expenses

Our operating expenses since inception have consisted solely of research and development expenses and general and administrative expenses.


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Research and Development



Research and development expenses consist of costs incurred for our research
activities, including our discovery efforts and the development of our programs.
These expenses include:

employee related expenses, including salaries, related benefits, and stock-based compensation expense for employees engaged in research and development functions;

expenses incurred in connection with the discovery, preclinical studies and clinical development of our VGL101 and small molecule TREM2 agonist program;


expenses incurred under agreements with third parties, such as consultants,
clinical investigators, contractors and contract research organizations, or
CROs, that assist with (i) the preclinical studies and clinical development of
VGL101 and (ii) identification of potential therapeutic candidates in our small
molecule TREM2 agonist program;


the cost of developing and scaling our manufacturing process and manufacturing
therapeutic candidates for use in our research and preclinical studies,
including under agreements with third parties, such as consultants, contractors,
and contract manufacturing organizations, or CMOs; and

other expenses incurred as a result of research and development activities.



Research and development expenses account for a significant portion of our
operating expenses. We expense research and development costs as incurred.
Nonrefundable advance payments for goods and services that will be used in
future research and development activities are expensed when the activity has
been performed or when the goods have been received rather than when the payment
is made. When third-party service providers' billing terms do not coincide with
our period-end, we are required to make estimates of our obligations to those
third parties incurred in a given accounting period and record accruals at the
end of the period. We base these estimates on our knowledge of the research and
development programs, services performed for the period, past history for
related activities and the expected duration of the third-party service
contract, where applicable. If timelines or contracts are modified based upon
changes in the scope of work to be performed, we modify our estimates of accrued
expenses accordingly on a prospective basis. Actual results could differ from
our estimates.

Our direct research and development expenses are tracked on a program-by-program
basis and consist primarily of external costs, such as fees paid to CROs, CMOs,
central laboratories and outside consultants in connection with our research and
discovery, preclinical development, process development, manufacturing, clinical
development, regulatory and quality activities. We do not allocate employee
costs or facility expenses, including depreciation or other indirect costs, to
specific programs because these costs are deployed across multiple programs. Our
internal resources conduct our research and discovery activities and manage our
preclinical development and process development, manufacturing and clinical
development activities.

The table below summarizes our research and development expenses incurred by
program:

                                            Three Months Ended September 30,          Nine Months Ended September 30,
                                              2022                  2021                2022                  2021
                                                    ($ in thousands)                         ($ in thousands)
Direct, external research and
development expenses by program:
VGL101                                     $     5,177         $         3,780     $        13,600       $        12,082
Small molecule TREM2                             2,791                   1,128               8,268                 3,487
Unallocated research and development
expenses:
External costs and other                         1,373                     985               3,113                 2,635
Facilities, personnel-related, and other         3,450                   1,917              10,272                 5,007

Total research and development expenses $ 12,791 $ 7,810 $ 35,253 $ 23,211





Research and development activities are central to our business model.
Therapeutic candidates in later stages of clinical development generally have
higher development costs than those in earlier stages, primarily due to the
increased size and duration of later-stage clinical trials. As a result, we
expect that our research and development expenses will increase substantially
over the next several years as we expect to (i) advance VGL101 and our small
molecule TREM2 agonist programs' initial clinical trials, (ii) develop VGL101
for other indications, including other rare leukodystrophies, and
leukoencephalopathies, and (iii) expand our modality agnostic product pipeline
to other microglia targets beyond TREM2.

The successful development and commercialization of our therapeutic candidates
is highly uncertain. At this time, we cannot reasonably estimate or know the
nature, timing and costs of the efforts that will be necessary to complete the
preclinical and clinical

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development of any of our therapeutic candidates. This uncertainty is due to the numerous risks and uncertainties associated with product development and commercialization, including the uncertainty of:

the timing, design and successful completion of preclinical studies and clinical development activities;

the sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials;


effective INDs or comparable foreign applications that allow commencement of our
planned clinical trials or future clinical trials for any therapeutic candidates
we may develop;


successful enrollment and completion of clinical trials, including under the
FDA's Good Clinical Practices, Good Laboratory Practices, and any additional
regulatory requirements from foreign regulatory authorities;

positive results from our future clinical trials that support a finding of safety and effectiveness and an acceptable risk-benefit profile in the intended populations;

the receipt of regulatory marketing approvals from applicable regulatory authorities;

the establishment of arrangements with third-party manufacturers for clinical supply and, where applicable, commercial manufacturing capabilities;

the establishment, maintenance, defense and enforcement of patent, trademark, trade secret and other intellectual property protection or regulatory exclusivity for any therapeutic candidates we may develop;

patient recruitment and enrollment;

commercial launch of any therapeutic candidates we may develop, if approved, whether alone or in collaboration with others;

acceptance of the benefits and use of our therapeutic candidates we may develop, including method of administration, if and when approved, by patients, the medical community and third-party payors;

our ability to compete effectively with other therapies and treatment options;

maintenance of a continued acceptable safety, tolerability and efficacy profile of any therapeutic candidates we may develop following approval;

establishment and maintenance of healthcare coverage and adequate reimbursement by payors;

our ability to establish new licensing or collaboration arrangements;

the performance of our future collaborators, if any;

development and timely delivery of commercial-grade drug formulations that can be used in our planned clinical trials and, if approved, for commercial launch;

obtaining, maintaining, defending and enforcing patent claims and other intellectual property rights;

launching commercial sales of our therapeutic candidates, if approved, whether alone or in collaboration with others; and

maintaining a continued acceptable safety profile of the therapeutic candidates following approval.



Any changes in the outcome of any of these variables with respect to the
development of our therapeutic candidates in preclinical and clinical
development could mean a significant change in the costs and timing associated
with the development of these therapeutic candidates. For example, if the FDA or
another regulatory authority were to delay our planned start of clinical trials
or require us to conduct clinical trials or other testing beyond those that we
currently expect, or if we experience significant delays in enrollment in any of
our planned clinical trials, we could be required to expend significant
additional financial resources and time to complete clinical development of that
therapeutic candidate. We may never obtain regulatory approval for any of our
therapeutic candidates, and, even if we do, drug commercialization takes several
years and millions of dollars in development costs.

General and Administrative



General and administrative expenses consist primarily of personnel expenses,
including salaries, benefits and stock-based compensation expense, for personnel
in executive, accounting, business development, legal, human resources and
administrative functions. General and administrative expenses also include
corporate facility costs not otherwise included in research and development
expenses, depreciation and other expenses, which include direct or allocated
expenses for rent and maintenance of facilities and

                                       26
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insurance, not otherwise included in research and development expenses, as well as professional fees for legal, consulting, investor and public relations, accounting and audit services.



We expect that our general and administrative expenses will increase in the
foreseeable future as we increase our headcount to support the continued
research and development of our programs and the growth of our business. We also
anticipate incurring additional expenses associated with operating as a public
company, including increased expenses related to audit, legal, regulatory,
compliance, director and officer insurance, investor and public relations and
tax-related services associated with maintaining compliance with the rules and
regulations of the Securities and Exchange Commission, or SEC, and standards
applicable to companies listed on a national securities exchange, additional
insurance expenses, investor relations activities and other administrative and
professional services.

Other Income (Expense)

Change in Fair Value of Related Party Antidilution Obligation



Pursuant to the Amgen Agreement, we agreed to issue Amgen equity in an amount
equal to 25% of our capital stock on a fully diluted basis until such time as we
have raised an aggregate of $45.0 million in net cash proceeds from financing
activities relating to dilutive transactions including the Related Party
Antidilution Obligation. In September 2020, we completed the first closing
pursuant to the Series A Convertible Preferred Stock Purchase Agreement, and as
a result issued Amgen 6,928,566 shares of Series A convertible preferred stock
such that Amgen's ownership represented 25% of the post-closing capitalization
on a fully diluted basis. The Related Party Antidilution Obligation was
separately exercisable from the Amgen Agreement and was classified as a
liability and recorded at fair value in the consolidated balance sheet with a
corresponding charge to research and development at inception of the license
agreement in July of 2020. The Related Party Antidilution Obligation was
remeasured at fair value at each reporting period, with changes in fair value
recorded in change in fair value of Related Party Antidilution Obligation in the
consolidated statement of operations and comprehensive loss. In September 2020,
the Related Party Antidilution Obligation was partially settled through the
issuance of 6,928,566 shares of Series A convertible preferred stock with a fair
value of $17.5 million. In May 2021, we settled the remaining Related Party
Antidilution Obligation in full with the second closing pursuant to the Series A
Convertible Preferred Stock Purchase Agreement. Amgen received an additional
1,963,093 shares of Series A convertible preferred stock with a fair value of
$5.1 million. These shares were subsequently converted into common stock in
connection with the Company's IPO.

Change in Fair Value of Series A Preferred Stock Tranche Obligation



In September 2020, we entered into the Series A Convertible Preferred Stock
Purchase Agreement and issued 9,815,467 shares of Series A convertible preferred
stock at a purchase price of $2.547 per share, for gross cash proceeds of $25.0
million. The gross proceeds were offset by $0.2 million of issuance costs and
$0.2 million related to the Series A Preferred Tranche Obligation. As part of
the September 2020 Series A Convertible Preferred Stock Purchase Agreement, the
investors were contingently obligated to purchase 7,852,373 additional shares of
Series A convertible preferred stock at $2.547 per share upon the satisfaction
of specified research and development milestones, collectively, the Series A
Preferred Stock Tranche Obligation. The Series A Preferred Stock Tranche
Obligation was legally detachable and separately exercisable from the Series A
convertible preferred stock. As such, we allocated the proceeds from the
September 2020 issuance between the Series A Preferred Stock Tranche Obligation
and the Series A convertible preferred stock. As the Series A convertible
preferred stock is redeemable upon a deemed liquidation event at the election of
the holder controlled Board, and therefore outside of the control of our
company, the Series A Preferred Stock Tranche Obligation was classified as a
liability and recorded at its fair value. The Series A Preferred Stock Tranche
Obligation was remeasured at fair value at each reporting period, with changes
in fair value recorded in change in fair value of Series A Preferred Stock
Tranche Obligation in the condensed consolidated statement of operations and
comprehensive loss.

Interest Income, net

Interest income, net primarily consists of interest earned from our cash and
cash equivalents and restricted cash. We expect our interest income will
increase slightly in 2022 as we invest the cash received from our sales of
Series B preferred stock and the net proceeds from our IPO. Interest income was
$163 thousand and $197 thousand the three and nine months ended September 30,
2022, respectively, and was $0 and $3 thousand for the three and nine months
ended September 30, 2021, respectively.

Other Expense, net



Other expense, net includes gains and losses from the remeasurement of foreign
currency transactions into our functional currency. Other expense, net was
immaterial during the three and nine months ended September 30, 2022, and during
the three and nine months ended September 30, 2021.

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Results of Operations

Three Months Ended September 30, 2022 Compared with Three Months Ended September 30, 2021



The following table summarizes our results of operations for the three months
ended September 30, 2022 compared with three months ended September 30, 2021:

                                     Three Months Ended September 30,
                                        2022                   2021            Change
                                                    ($ in thousands)
Operating expenses:
Research and development          $         12,791       $          7,810     $  4,981
General and administrative                   4,846                  2,928        1,918
Total operating expenses                    17,637                 10,738        6,899
Loss from operations                       (17,637 )              (10,738 )     (6,899 )
Other income (expense):
Interest income                                163                      -          163
Other income (expense), net                    (26 )                   (2 )        (24 )
Total other expense, net                       137                     (2 )        139

Net loss and comprehensive loss $ (17,500 ) $ (10,740 )

$ (6,760 )

Research and Development Expenses

Research and development expenses were $12.8 million for the three months ended September 30, 2022, as compared to $7.8 million for the three months ended September 30, 2021. The increase of $5.0 million consisted primarily of the following:

$1.7 million of small molecule TREM2 agonist program expenses, which is primarily driven by $1.2 million of increased preclinical costs and $0.4 million in manufacturing related costs;

$1.5 million of facilities, personnel-related and other expenses, of which $1.6
million related to personnel-related costs, including salaries, bonuses, and
other compensation-related costs, including stock-based compensation of $0.4
million; and

$1.4 million of VGL101 program expenses, which is primarily driven by $2.3 million of clinical trial related expenses and is partially offset by $0.6 million decrease in external manufacturing expenses due to timing of manufacturing runs of VGL101 and $0.6 million in VGL101 preclinical costs.

General and Administrative Expenses

General and administrative expenses were $4.9 million for the three months ended September 30, 2022, as compared to $2.9 million for the three months ended September 30, 2021. The increase of $1.9 million consisted primarily of the following:

$1.5 million of personnel-related costs, including salaries, bonuses, and other
compensation-related costs, including stock-based compensation of $0.6 million;
and

$0.5 million of other headcount related expenses and costs associated with operating as a public company, including $0.5 million of business insurance.





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Nine Months Ended September 30, 2022 Compared with Nine Months Ended September 30, 2021



The following table summarizes our results of operations for the nine months
ended September 30, 2022 compared with nine months ended September 30, 2021:

                                                 Nine Months Ended September 30,
                                                   2022                   2021             Change
                                                                ($ in thousands)
Operating expenses:
Research and development                     $         35,253       $         23,211     $    12,042
General and administrative                             14,758                  6,221           8,537
Total operating expenses                               50,011                 29,432          20,579
Loss from operations                                  (50,011 )              (29,432 )       (20,579 )
Other income (expense):
Change in fair value of the related party
antidilution obligation                                     -                   (836 )           836
Change in fair value of Series A preferred
stock tranche obligation                                    -                    (28 )            28
Interest income                                           197                      3             194
Other income (expense), net                               (35 )                   (5 )           (30 )
Total other expense, net                                  162                   (866 )         1,028
Net loss and comprehensive loss              $        (49,849 )     $        (30,298 )   $   (19,551 )

Research and Development Expenses



Research and development expenses were $35.3 million for the nine months ended
September 30, 2022, as compared to $23.2 million for the nine months ended
September 30, 2021. The increase of $12.1 million consisted primarily of the
following:

$5.3 million of facilities, personnel-related and other expenses, of which $4.6
million related to personnel-related costs, including salaries, bonuses, and
other compensation-related costs, including stock-based compensation of $1.2
million;

$4.8 million of small molecule TREM2 agonist program expenses, which is primarily driven by $3.5 million of increased preclinical costs and $1.3 million in manufacturing related costs; and

$1.5 million of VIGL101 program expenses, which is primarily driven by $5.7
million of clinical trial related expenses and $0.4 million in patient advocacy
increases, these are partially offset by a decrease of $2.9 million in external
manufacturing expenses due to timing of manufacturing runs of VGL101 and $2.0
million in VGL101 related preclinical costs; and

$0.3 million in lab supplies.

General and Administrative Expenses

General and administrative expenses were $14.8 million for the nine months ended September 30, 2022, as compared to $6.2 million for the nine months ended September 30, 2021. The increase of $8.6 million consisted primarily of the following:

$4.1 million of personnel-related costs, including salaries, bonuses, and other compensation-related costs, including stock-based compensation of $1.5 million;

$2.5 million of other headcount related expenses and costs associated with operating as a public company, including $1.6 million of business insurance; and

$2.0 million of professional fees, including legal, accounting and other expenses.


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Change in Fair Value of Related Party Antidilution Obligation



The change in fair value of Related Party Antidilution Obligation was $0 for the
nine months ended September 30, 2022, as compared to $0.9 million for the nine
months ended September 30, 2021. This decrease of $0.9 million was related to
the May 2021 settlement of the Related Party Antidilution Obligation associated
with the Amgen Agreement. On September 18, 2020, we completed the first closing
pursuant to the Series A Convertible Preferred Stock Purchase Agreement which
triggered the partial settlement of the Related Party Antidilution Obligation
resulting in the issuance of 6,928,566 shares of its Series A convertible
preferred stock to Amgen. The fair value of the Related Party Antidilution
Obligation as of December 31, 2020 was $4.2 million. On May 28, 2021, we
completed the second closing pursuant to the Series A Convertible Preferred
Stock Purchase Agreement which resulted in our raising of net cash proceeds from
financing activities in excess of the $45.0 million Related Party Antidilution
Obligation cap. The second closing triggered the settlement of the remaining
Related Party Antidilution Obligation, resulting in the issuance of 1,963,093
shares of Series A convertible preferred stock to Amgen with a fair value of
$5.1 million.

Change in Fair Value of Series A Preferred Stock Tranche Obligation



The change in fair value of Series A Preferred Stock Tranche Obligation was $0
for the nine months ended September 30, 2022 as compared to $28 thousand for the
nine months ended September 30, 2021. This decrease of $28 thousand related to
the May 2021 settlement of the Series A Preferred Stock Tranche Obligation
associated with the Series A Convertible Preferred Stock Purchase Agreement. In
May 2021, we settled the Series A Tranche Obligation with the issuance of
7,852,373 shares of our Series A Convertible Preferred Stock.

Liquidity and Capital Resources

Sources of Liquidity



Since our inception, we have not generated any revenue from product sales and
have incurred significant operating losses and negative cash flows from our
operations. We expect to incur significant expenses and operating losses for the
foreseeable future as we advance the clinical development of our therapeutic
candidates. Since our inception through September 30, 2022, we have funded our
operations with net proceeds from sales of our convertible preferred stock,
issuance of our common stock from our initial public offering, and SAFE. As of
September 30, 2022, we had cash and cash equivalents of $203.9 million.

In January 2022, we completed the initial public offering of our common stock,
in which we issued an aggregate of 7,000,000 shares of common stock, at a price
of $14.00 per share, for gross cash proceeds of $98.0 million, before
underwriting discounts and commissions. We received approximately $88.0 million
in net proceeds, after deducting underwriting discounts, commissions and
offering expenses of $10.0 million.

In August 2022, we also completed a private placement in which we issued
7,293,084 shares of common stock at a price of $7.30 per share and 2,980,889
pre-funded warrants at a purchase price of $7.2999, for gross proceeds of $75.0
million, before deducting fees to the placement agent and other offering
expenses. We received net proceeds of $71.3 million.

Based on our current operating plan, we expect the net proceeds from our IPO and
private placement, together with our existing cash, will be sufficient to fund
our planned operating expenses and capital expenditure requirements into the
first quarter of 2025.

Cash Flows

The following table summarizes our sources and uses of cash for each of the
periods presented:

                                                                 Nine Months Ended September 30,
                                                                   2022                   2021
                                                                        ($ in thousands)
Net cash used in operating activities                        $        (48,062 )     $        (22,000 )
Net cash used by investing activities                                    (649 )                 (177 )
Net cash provided by financing activities                             161,154                109,609

Net increase in cash, cash equivalents and restricted cash $ 112,443 $ 87,432






Operating Activities

During the nine months ended September 30, 2022, operating activities consisted primarily of our net loss of $49.9 million and $3.0 million of changes in operating assets and liabilities, partially offset by (i) $4.0 million stock-based compensation expense, and (ii)


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$0.7 million change in operating lease expenses. The net loss primarily consisted of $35.3 million of research and development expenses, and $14.8 million of general and administrative expenses.



During the nine months ended September 30, 2021, operating activities consisted
primarily of our net loss of $30.3 million, partially offset by (i) $6.0 million
of changes in operating assets and liabilities, (ii) $0.8 million change in
Related Party Antidilution Obligation, and (iii) $1.3 million stock-based
compensation expense. The net loss primarily consisted of $23.2 million of
research and development expenses, $6.2 million of general and administrative
expenses and a $0.8 million unfavorable change in fair value of Related Party
Antidilution Obligation.

Investing Activities

During the nine months ended September 30, 2022, net cash used by investing activities consisted of $0.6 million of purchases of property and equipment.

During the nine months ended September 30, 2021, net cash used by investing activities consisted of $0.2 million of purchases of property and equipment.

Financing Activities

During the nine months ended September 30, 2022, net cash provided by financing activities consisted primarily of $89.9 million in net proceeds from the issuance of common stock upon initial public offering, $50.6 million in net proceeds from the issuance of common stock under our August 2022 private placement offering, and $20.7 million in net proceeds from the issuance of pre-funded warrants.



During the nine months ended September 30, 2021, net cash provided by financing
activities consisted primarily of $20.0 million gross proceeds from the issuance
of 7,852,373 shares of Series A convertible preferred stock at a purchase price
of $2.547 per share, and $90.0 million gross proceeds from the issuance of
25,657,096 shares of Series B convertible preferred stock at $3.5078 per share,
offset by approximately $0.4 million of issuance costs.

Our primary uses of cash are to fund our research and development activities
related to our VGL101 and small molecule TREM2 agonist program, hiring
personnel, raising capital and providing general and administrative support for
these operations.

We currently have no ongoing material financing commitments that are expected to
affect our liquidity over the next five years, other than our lease obligations
and a $0.9 million standby letter of credit we entered into in September 2021,
in connection with a lease for laboratory and office space in Watertown,
Massachusetts. The standby letter of credit expires in December 2032.

Funding Requirements



To date, we have not generated any revenue from product sales. We do not expect
to generate revenue from product sales unless and until we successfully complete
clinical development of, receive regulatory approval for, and commercialize,
VGL101, and we do not know when, or if at all, that will occur. We expect our
expenses and capital requirements to increase significantly in connection with
our ongoing activities, particularly as we continue the research and development
of, initiate clinical trials of, and seek marketing approval for our VGL101 and
small molecule TREM2 agonist program. In addition, if we obtain regulatory
approval for any of our therapeutic candidates, we expect to incur significant
expenses related to product sales, marketing, and distribution to the extent
that such sales, marketing and distribution are not the responsibility of
potential collaborators. We may also require additional capital to pursue
in-licenses or acquisitions of other drug candidates. Further, we expect to
incur additional costs associated with operating as a public company.
Accordingly, we will require substantial additional funding to develop our
therapeutic candidates and support our continuing operations. If we are unable
to raise capital when needed or on attractive terms, we would be forced to
delay, reduce or eliminate our product development or future commercialization
efforts.

Our future capital requirements will depend on many factors, including:


the initiation, scope, progress, timing, results and costs of product discovery,
preclinical studies and clinical trials for our therapeutic candidates or any
future candidates we may develop;

our ability to maintain our relationship with Amgen and any other key licensors or collaborators;

the scope, prioritization and number of our research and development programs;


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the costs, timing and outcome of seeking and obtaining regulatory approvals from
the FDA and comparable foreign regulatory authorities, including the potential
for such authorities to require that we perform more preclinical studies or
clinical trials than those that we currently expect or change their requirements
on studies that had previously been agreed to;

our ability to establish and maintain collaborations on favorable terms, if at all;

the achievement of milestones or occurrence of other developments that trigger payments under any collaboration agreements we enter into;

the extent to which we are obligated to reimburse, or entitled to reimbursement of, clinical trial costs under collaboration agreements, if any;


the costs to establish, maintain, expand, enforce and defend the scope of our
intellectual property portfolio, including preparing, filing and prosecuting
patent applications, maintaining and enforcing our intellectual property rights
and defending intellectual property-related claims;

the extent to which we acquire or in-license other therapeutic candidates and technologies;

the costs of securing manufacturing arrangements for commercial production;

the costs of establishing or contracting for sales and marketing capabilities if we obtain regulatory approvals to market our therapeutic candidates; and

our need to implement additional internal systems and infrastructure, including financial and reporting systems.



Identifying potential therapeutic candidates and conducting preclinical studies
and clinical trials is a time-consuming, expensive and uncertain process that
takes years to complete, and we may never generate the necessary data or results
required to obtain regulatory approval and commercialize our therapeutic
candidates. In addition, our therapeutic candidates, if approved, may not
achieve commercial success. Our commercial revenues, if any, will be derived
from sales of products that we do not expect to be commercially available for
many years, if at all. Accordingly, we will need to continue to rely on
additional financing to achieve our business objectives. Adequate additional
financing may not be available to us on acceptable terms, or at all.

Until such time, if ever, as we can generate significant revenue from product
sales or other sources, we expect to finance our operations through the sale of
equity, debt financings, or other capital sources, which could include proceeds
from potential collaborations, strategic partnerships or marketing,
distribution, licensing or other similar arrangements with third parties.
However, we may be unable to raise additional funds or enter into such
agreements or arrangements on favorable terms, or at all. Market volatility
resulting from the COVID-19 pandemic or other factors could also adversely
impact our ability to access capital as and when needed. To the extent that we
raise additional capital through the sale of equity or convertible debt
securities, your ownership interest will be diluted, and the terms of these
securities may include liquidation or other preferences that adversely affect
your rights as a common stockholder. Any future debt financing and preferred
equity financing, if available, may involve agreements that include covenants
limiting or restricting our ability to take specific actions, such as incurring
additional debt, selling or licensing our assets, making capital expenditures,
declaring dividends or encumbering our assets to secure future indebtedness.
Such restrictions could adversely impact our ability to conduct our operations
and execute our business plan.

If we raise funds through collaborations, strategic alliances or licensing
arrangements with third parties, we may have to relinquish valuable rights to
our technologies, future revenue streams, research programs or therapeutic
candidates or to grant licenses on terms that may not be favorable to us. If we
fail to raise capital or enter into such agreements as, and when, needed, we may
have to significantly delay, scale back or discontinue the development or
commercialization of our therapeutic candidates or grant rights to develop and
market therapeutic candidates that we would otherwise prefer to develop and
market ourselves. We expect our existing cash, and cash equivalents will enable
us to fund our operating expenses and capital expenditure requirements into the
first quarter of 2025 at which point we would need to obtain substantial
additional funding in connection with our continuing operations.

Contractual Obligations and Commitments



In September 2021, we entered into a lease for laboratory and office space in
Watertown, Massachusetts with an initial term of ten years, and a five-year
renewal option at the end of the initial lease term. The monthly lease payment
is approximately $0.2 million with annual escalation of approximately 3%. The
lease includes a $3.7 million construction allowance. As of September 30, 2022,
the Company paid $2.3 million, net of $0.8 million received or receivable
pursuant to the construction allowance. The lease is expected to commence in the
first quarter of 2023 when the leased space is expected to be made available for
use, as such this lease is not included in the table above given the
commencement date.

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In February 2021, we entered into a master services agreement with FUJIFILM
Diosynth Biotechnologies UK Limited, FUJIFILM Diosynth Biotechnologies Texas,
LLC, FUJIFILM Diosynth Biotechnologies U.S.A., Inc, and FUJIFILM Diosynth
Biotechnologies Denmark AS, or collectively, FUJIFILM. In November 2021, we
entered into a statement of work with FUJIFILM for $3.8 million under our
existing master services agreement for the manufacturing of VGL101. If we
terminate the statement of work before completion, we may be required to pay
fees ranging from 0% to 100%. The amount due upon an early termination depends
on the length of time prior to the commencement of specific stages of the
statement of work. As of September 30, 2022, no significant work had begun. The
statement of work is expected to be substantially completed by the end of 2024.

Apart from the contracts with payment commitments noted above, we have entered
into contracts in the normal course of business with CROs, CMOs and other third
parties for preclinical research studies and testing, clinical trials and
manufacturing services. These contracts do not contain any minimum purchase
commitments and are cancelable by us upon prior notice and, as a result, are not
included in the table of contractual obligations and commitments above. Payments
due upon cancellation consist only of payments for services provided and
expenses incurred, including non-cancelable obligations of our service
providers, up to the date of cancellation.

We may in the future incur potential royalty payments under license and
collaboration agreements we have entered and will enter into with various
entities pursuant to which we have in-licensed certain intellectual property,
such as our exclusive license agreement with Amgen. Due to the uncertainty of
the achievement and timing of the events requiring payment under these
agreements, the amounts to be paid by us are not fixed or determinable at this
time.

Critical Accounting Policies and Significant Judgments and Estimates



Our management's discussion and analysis of our financial condition and results
of operations are based on our financial statements, which have been prepared in
accordance with United States generally accepted accounting principles, or GAAP.
The preparation of our financial statements and related disclosures requires us
to make estimates and judgments that affect the reported amounts of assets,
liabilities, expenses, and the disclosure of our contingent liabilities in our
financial statements. We base our estimates on historical experience, known
trends and events and various other factors that we believe are reasonable under
the circumstances, the results of which form the basis for making judgments
about the carrying values of assets and liabilities that are not readily
apparent from other sources. We evaluate our estimates and assumptions on an
ongoing basis. Our actual results may differ from these estimates under
different assumptions or conditions.

There have been no other material changes to the significant accounting policies
previously disclosed in our Annual Report on Form 10-K for the fiscal year ended
December 31, 2021.

Emerging Growth Company Status



The Jumpstart Our Business Startups Act of 2012, or JOBS, permits an "emerging
growth company" such as us to take advantage of an extended transition to comply
with new or revised accounting standards applicable to public companies until
those standards would otherwise apply to private companies. We have elected not
to "opt out" of such extended transition period, which means that when a
standard is issued or revised and it has different application dates for public
or private companies, we will adopt the new or revised standard at the time
private companies adopt the new or revised standard and will do so until such
time that we either (i) irrevocably elect to "opt out" of such extended
transition period or (ii) no longer qualify as an emerging growth company. There
are other exemptions and reduced reporting requirements provided by the JOBS Act
that we are currently evaluating. For example, as an "emerging growth company,"
we are exempt from Sections 14A(a) and (b) of the Securities Exchange Act of
1934, as amended, which would otherwise require us to (1) submit certain
executive compensation matters to shareholder advisory votes, such as
"say-on-pay," "say-on-frequency," and "golden parachutes;" and (2) disclose
certain executive compensation related items such as the correlation between
executive compensation and performance and comparisons of our chief executive
officer's compensation to our median employee compensation. We also intend to
rely on an exemption from the rule requiring us to provide an auditor's
attestation report on our internal controls over financial reporting pursuant to
Section 404(b) of the Sarbanes-Oxley Act. We will continue to remain an
"emerging growth company" until the earliest of the following: (1) the last day
of the fiscal year following the fifth anniversary of the date of the completion
of our IPO; (2) the last day of the fiscal year in which our total annual gross
revenue is equal to or more than $1.07 billion; (3) the date on which we have
issued more than $1 billion in nonconvertible debt during the previous three
years; or (4) the date on which we are deemed to be a large accelerated filer
under the rules of the SEC.

Recently Issued Accounting Pronouncements



There have been no other material changes to the significant accounting policies
previously disclosed in the Company's Annual Report on Form 10-K for the fiscal
year ended December 31, 2021.

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