The following discussion and analysis of our financial condition and results of
operations should be read in conjunction with our consolidated financial
statements and related notes appearing at the end of this Annual Report on Form
10-K.
Some of the information contained in this discussion and analysis or set forth
elsewhere in this Annual Report on Form
10-K,
including information with respect to our plans and strategy for our business,
includes forward-looking statements that involve risks and uncertainties. As a
result of many factors, including those factors set forth in the "Risk Factors"
section of this Annual Report on Form
10-K,
our actual results could differ materially from the results described in, or
implied by, the forward-looking statements contained in the following discussion
and analysis.
Overview
Magenta Therapeutics is a clinical-stage biotechnology company developing novel
medicines to bring the curative power of stem cell transplants to more patients
with blood cancers, genetic diseases and autoimmune diseases.
Magenta's drug development pipeline includes multiple product candidates
designed to improve stem cell transplants. Our lead clinical program is designed
to more efficiently and reliably mobilize and collect sufficient functional stem
cells for use in stem cell transplantation, a process known as mobilization. We
are also developing product candidates that are designed to deplete targeted
cells in the bone marrow to make space for the bone marrow to receive newly
transplanted stem cells, a process known as conditioning. Our mobilization
program is intended to enable rapid, reliable, predictable and safe mobilization
and collection of high numbers of functional stem cells for transplant.
Magenta's targeted conditioning programs are intended to enhance the efficacy of
and/or reduce the dosing levels, intensity or, in some cases, even the need for
chemotoxic agents.
Stem cell transplant is an established and, for certain patients, can be a
curative medical procedure that can reset a patient's blood and immune system
after the patient has received treatment for certain blood cancers, genetic
diseases or autoimmune diseases. Stem cell transplants involve a three-step
process: (i) stem cells are mobilized out of the patient's or donor's bone
marrow and collected from the blood (or, in rare cases, surgically extracted
from their bone marrow); (ii) the patient's bone marrow is cleared of any
remaining stem cells in order to make space to receive new transplanted stem
cells; and (iii) the stem cells are transplanted into the patient via infusion
where they fasten to, or engraft in, the bone marrow and grow into the blood
cells and platelets that form the basis of a reset and rebuilt blood and immune
system. All transplants are categorized as either autologous or allogeneic
depending on the source of the new stem cells for the transplant. In an
autologous transplant, the patient's own stem cells are used. In an allogeneic
transplant, patients receive cells from a stem cell donor.
Stem cell transplant, whether autologous or allogeneic, has broad applicability
across disease settings, including blood cancers, gene therapies for genetic
diseases and autoimmune diseases. It is the current standard of care for certain
blood cancers such as acute myeloid leukemia, or AML, myelodysplastic syndromes,
or MDS, multiple myeloma and
non-Hodgkin's
lymphoma. Hematopoietic stem cell, or HSC, -based gene therapies also rely on
the same steps of the stem cell transplant process with an additional step where
collected stem cells are gene-corrected or modified to address the underlying
disease prior to transplant. Such gene therapy approaches that leverage the stem
cell transplant procedure are being investigated by numerous companies in a
variety of diseases, including sickle cell disease, beta-thalassemia and
lysosomal storage disorders. Autoimmune diseases such as multiple sclerosis and
systemic sclerosis may also benefit from resetting the immune system through
stem cell transplant.
Currently, the number of days required to mobilize and collect a patient's or
donor's stem cells is a minimum of five days in blood cancer patients and
healthy donors and as many as 30 days or more in patients with sickle cell
disease. When planning for a patient's transplant, transplanting physicians
cannot reliably predict

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at the outset how long it will take for patients to mobilize the number of cells
required. Many patients require multiple collections, including approximately
40% of blood cancer patients and 75% of sickle cell disease patients. In
addition, each day scheduled for attempted mobilization and collection can cause
an accumulation of both the direct costs associated with the repeated use of
mobilization agents and other healthcare resources, including personnel time,
and the indirect costs associated with the need to block time in the limited
number of chairs in transplant centers that are used to collect stem cells.
Similarly,
HSC-based
gene therapies could benefit from more efficient collection of stem cells which
could potentially reduce gene therapy manufacturing timelines and costs.
Additionally, there are no approved mobilization options for patients with
sickle cell disease and autoimmune diseases, and the
off-label
use of currently available medicines is associated with significant safety risks
including vaso-occlusive events in sickle cell disease patients.
Magenta is developing
MGTA-145
for stem cell mobilization in a broad range of diseases, for both autologous and
allogeneic transplants.
MGTA-145
is Magenta's biologic stem cell mobilization product candidate designed to
address these time and cost inefficiencies while enabling the rapid, reliable,
predictable and safe collection of functional blood stem cells for transplant in
a single day. In 2020, we completed a Phase 1 clinical trial in healthy
volunteers to evaluate the ability of
MGTA-145,
in combination with plerixafor, to mobilize stem cells. Based on the results of
the study, we have advanced the program into three ongoing and planned Phase 2
clinical trials, including an autologous transplant trial in multiple myeloma
patients; an allogeneic transplant trial with healthy donor cells collected for
transplant in patients with acute myeloid leukemia, myelodysplastic syndromes or
acute lymphocytic leukemia, or ALL; and lastly, a planned trial in partnership
with bluebird bio, Inc. to mobilize and collect the stem cells of sickle cell
disease patients.
In addition to the opportunity to address the challenges in mobilization and
collection of stem cells, Magenta also seeks to improve patient conditioning
prior to transplant. Conditioning is the process by which patients are treated
with chemotherapy prior to transplant to ensure that the bone marrow has
sufficient space to receive newly transplanted stem cells. Currently, only
approximately 50% of eligible patients receive a stem cell transplant, in part
because of the risks and toxicities of the chemotherapeutic agents available
today. Magenta's lead conditioning program,
MGTA-117,
is designed to selectively deplete stem cells and reduce the need for high-dose
or high-intensity chemotherapeutic agents in oncology applications and
potentially eliminate the use of busulfan in gene therapy applications. Our
additional research-stage conditioning programs target stem and/or immune cells
and are being designed to eliminate toxic chemotherapy conditioning regimens
across multiple disease settings. Our C100 program focuses on addressing
opportunities in immune reset for autoimmune diseases. Our C300 program is being
designed to provide for lymphodepletion prior to cell therapies such as chimeric
antigen receptor T cells, or
CAR-T.
Our G100 program is being designed to provide prophylaxis of graft-versus-host
disease, a common post-transplant complication following allogeneic stem cell
transplant.
Magenta is also evaluating two programs with potential in cell therapy. Each is
a small molecule used to manufacture a high number of functional stem cells,
from either a donor or gene-modified stem cells from a patient.
MGTA-456
is a cell therapy designed to generate higher cell doses that are well matched
to the patient, which has been shown to improve the speed and success of
engraftment in stem cell transplant and improve disease outcomes. In June 2020,
we announced that we discontinued enrollment in our Phase 2 trial of
MGTA-456
in inherited metabolic diseases. Enrollment in an investigator-initiated trial
in patients with blood cancers has been completed, and we plan to use these
data, when available, to inform a decision regarding future program development
in blood cancers. Our second cell therapy program, E478, is a small molecule
aryl hydrocarbon receptor, or AHR, antagonist which
uses the same mechanism used to manufacture
MGTA-456
to expand gene-modified HSCs for stem cell-based gene therapy and genome
editing.
Magenta intends to become a fully integrated discovery, development and
commercial company in the field of stem cell transplant. We are developing our
product candidates to be used individually or, in some cases, in combination
with each other. As a result, our portfolio could be tailored to the patient's
disease, such that a patient may receive more than one Magenta therapy as part
of his or her individual stem cell transplant.

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We are experiencing operational and other challenges as a result of the novel
coronavirus, or
COVID-19,
global pandemic, which could delay or halt the development of our product
candidates. See "-Recent Developments" and "Item 1A. Risk Factors" for further
discussion of the current and expected impact on our business and product
candidates.
Since our inception in 2015, we have focused substantially all of our efforts
and financial resources on organizing and staffing our company, business
planning, raising capital, acquiring and developing our technology, identifying
potential product candidates, and undertaking preclinical studies, and in the
case of
MGTA-145
and
MGTA-456,
clinical trials. We do not have any products approved for sale and have not
generated any revenue from product sales.
In June 2018, we completed an initial public offering of our common stock. In
May 2019, we issued and sold 4,887,500 shares of our common stock, including the
underwriters' exercise in full of their option to purchase additional shares of
common stock, in a
follow-on
public offering at a public offering price of $13.25 per share, resulting in net
proceeds of $60.3 million after underwriting discounts and commissions and other
offering expenses. In June 2020, we issued and sold 8,625,000 shares of our
common stock, including the underwriters' exercise in full of their option to
purchase additional shares of common stock, in a
follow-on
public offering at a public offering price of $8.00 per share, resulting in net
proceeds of $64.6 million after underwriting discounts and commissions and other
offering expenses.
Since our inception, we have incurred significant operating losses. 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 product candidates. Our net loss was $74.9 million and $76.8 million
for the years ended December 31, 2020 and 2019, respectively. As of December 31,
2020, we had an accumulated deficit of $254.4 million. We expect to continue to
incur significant expenses and increasing operating losses for at least the next
several years. We expect our expenses and capital requirements will increase in
connection with our ongoing activities, particularly as we:

  •   initiate, enroll and conduct new Phase 2 clinical trials for
      MGTA-145;



     •    initiate and conduct preclinical studies and clinical trials of our
          product candidates, including
          MGTA-117;



  •   develop any other future product candidates we may choose to pursue;



     •    seek marketing approval for any of our product candidates that
          successfully complete clinical development, if any;



  •   maintain compliance with applicable regulatory requirements;



     •    develop and scale up our capabilities to support our ongoing preclinical
          activities and clinical trials for our product candidates and
          commercialization of any of our product candidates for which we obtain
          marketing approval, if any;



  •   maintain, expand, protect and enforce our intellectual property portfolio;



     •    develop and expand our sales, marketing and distribution capabilities for
          our product candidates for which we obtain marketing approval, if any;
          and



     •    expand our operational, financial and management systems and increase
          personnel, including to support our clinical development and
          commercialization efforts and our operations as a public company.

We will not generate revenue from product sales unless and until we successfully complete clinical development and obtain regulatory approval for our product candidates. If we obtain regulatory approval for any of our product candidates, we expect to incur significant expenses related to developing our commercialization capability to support product sales, marketing and distribution. Further, we expect to incur additional costs associated with operating as a public company.



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As a result, we will need substantial additional funding to support our
continuing operations and pursue our growth strategy. Until such time as we can
generate significant revenue from product sales, if ever, we expect to finance
our operations through a combination of equity offerings, debt financings,
collaborations, strategic alliances and marketing and distribution or licensing
arrangements. We may be unable to raise additional funds or enter into such
other agreements or arrangements when needed on favorable terms, or at all. 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 and
commercialization of one or more of our product candidates.
Because of the numerous risks and uncertainties associated with pharmaceutical
product development, we are unable to accurately predict the timing or amount of
increased expenses or when or if we will be able to achieve or maintain
profitability. Even if we are able to generate product sales, we may not become
profitable. 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.
As of December 31, 2020, we had cash, cash equivalents and marketable securities
of $148.8 million. Based on our updated operating plan, we believe that our
existing cash, cash equivalents and marketable securities will enable us to fund
our operating expenses and capital expenditure requirements into the first
quarter of 2023. See "-Liquidity and Capital Resources."
Impact of the
COVID-19
Pandemic
On March 11, 2020, the World Health Organization declared
COVID-19
a global pandemic, and on March 13, 2020, the U.S. declared a national emergency
with respect to
COVID-19.
The U.S. federal government subsequently issued initial
15-day
social distancing guidelines which were in effect through April 30, 2020 as a
measure to reduce the escalation of the spread of
COVID-19
in the U.S. More than 40 states and certain U.S. territories, including the
Commonwealth of Massachusetts where our operations are located, followed suit
and instituted quarantines, restrictions on travel, "stay at home" rules,
restrictions on types of businesses that may continue to operate and
restrictions on the types of construction projects that may continue. As a
result, the
COVID-19
pandemic has caused significant disruptions to the U.S., regional and global
economies and has contributed to significant volatility and negative pressure in
financial markets.
We have been carefully monitoring the
COVID-19
pandemic and its potential impact on our business and have taken important steps
to help ensure the safety of our employees and their families and to reduce the
spread of
COVID-19
in the Cambridge community. We have established a work-from-home policy for all
employees, other than those who are performing or supporting business-critical
research and development operations, such as certain members of our laboratory
and facilities staff. For those employees, we have implemented stringent safety
measures designed to comply with applicable federal, state and local guidelines
instituted in response to the
COVID-19
pandemic. We have also maintained efficient communication with our partners and
clinical sites as the
COVID-19
pandemic has progressed. We have taken these precautionary steps while
maintaining business continuity so that we can continue to progress our
programs.
The future impact of the
COVID-19
pandemic on our industry, the healthcare system and our current and future
operations and financial condition will, however, depend on future developments,
which are highly uncertain and cannot be predicted with confidence, including
the scope, severity and duration of the pandemic, the actions taken to contain
the pandemic or mitigate its impact, as well as the effect of any relaxation of
current restrictions within the Cambridge community or regions in which our
partners and clinical sites are located, and the direct and indirect economic
effects of the pandemic and containment measures, among others. See "Item 1A.
Risk Factors" for a discussion of the potential adverse impact of
COVID-19
on our business, results of operations and financial condition.

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Components of Our Results of Operations
Operating Expenses
Research and Development Expenses
Research and development expenses consist primarily of costs incurred for our
research activities, including our drug discovery efforts, and the development
of our product candidates, which include:

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



     •    expenses incurred in connection with the preclinical and clinical
          development of our product candidates, including under agreements with
          contract research organizations, or CROs;



     •    the cost of consultants and contract manufacturing organizations, or
          CMOs, that manufacture drug products for use in our preclinical studies
          and clinical trials;



     •    facilities, depreciation and other expenses, which include direct and
          allocated expenses for rent and maintenance of facilities, insurance and
          supplies; and



  •   payments made under third-party licensing agreements.

We expense research and development costs to operations as incurred. Advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed. 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 consultants, central laboratories, contractors, CMOs and CROs in connection with our preclinical and clinical development activities. We do not allocate employee costs, costs associated with our platform technology or facility expenses, including depreciation or other indirect costs, to specific product development programs because these costs are deployed across multiple product development programs and, as such, are not separately classified. The successful development and commercialization of our product candidates is highly uncertain. This is due to the numerous risks and uncertainties, including the following:



     •    the continuing impact of the
          COVID-19
          pandemic on our industry, the healthcare system, and our current and
          future operations;



  •   successful completion of preclinical studies and clinical trials;



     •    receipt and related terms of marketing approvals from applicable
          regulatory authorities;



     •    raising additional funds necessary to complete clinical development of
          and commercialize our product candidates;



     •    obtaining and maintaining patent, trade secret and other intellectual
          property protection and regulatory exclusivity for our product
          candidates;



     •    making arrangements with third-party manufacturers, or establishing
          manufacturing capabilities, for both clinical and commercial supplies of
          our product candidates;



  •   developing and implementing marketing and reimbursement strategies;



     •    establishing sales, marketing and distribution capabilities and launching
          commercial sales of our products, if and when approved, whether alone or
          in collaboration with others;



     •    acceptance of our products, if and when approved, by patients, the
          medical community and third-party payors;



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  •   effectively competing with other therapies;



  •   obtaining and maintaining third-party coverage and adequate reimbursement;



     •    protecting and enforcing our rights in our intellectual property
          portfolio; and



     •    maintaining a continued acceptable safety profile of the products
          following approval.


A change in the outcome of any of these variables with respect to the
development of any of our product candidates would significantly change the
costs and timing associated with the development of that product candidate. We
may never succeed in obtaining regulatory approval for any of our product
candidates.
Research and development activities are central to our business model. Product
candidates in later stages of clinical development generally have higher
development costs than those in earlier stages of clinical development,
primarily due to the increased size and duration of later-stage clinical trials.
We expect research and development costs to increase significantly for the
foreseeable future as our product candidate development programs progress.
However, we do not believe that it is possible at this time to accurately
project total program-specific expenses through commercialization. There are
numerous factors associated with the successful commercialization of any of our
product candidates, including future trial design and various regulatory
requirements, many of which cannot be determined with accuracy at this time
based on our stage of development. Additionally, future commercial and
regulatory factors beyond our control will impact our clinical development
programs and plans.
General and Administrative Expenses
General and administrative expenses consist primarily of salaries and related
costs, and stock-based compensation, for personnel in executive, finance and
administrative functions. General and administrative expenses also include
direct and allocated facility-related costs and insurance costs, as well as
professional fees for legal, patent, consulting, accounting and audit services.
We anticipate that our general and administrative expenses will increase in the
future as we increase our headcount to support our continued research activities
and development of our product candidates. We also anticipate that we will incur
increased costs associated with continuing to operate as a growing public
company.
Interest and Other Income, Net
Interest and other income, net, consists of interest income and miscellaneous
income and expense unrelated to our core operations.
Income Taxes
Since our inception, we have not recorded any U.S. federal or state income tax
benefits for the net losses we have incurred in each year or for our earned
research and orphan drug tax credits, due to our uncertainty of realizing a
benefit from those items. As of December 31, 2020, we had net operating loss
carryforwards for federal income tax purposes of $182.3 million, of which
$17.5 million begin to expire in 2035 and $164.8 million can be carried forward
indefinitely. As of December 31, 2020, we had net operating loss carryforwards
for state income tax purposes of $184.6 million which begin to expire in 2035.
As of December 31, 2020, we also had available research and orphan drug tax
credit carryforwards for federal and state income tax purposes of $8.4 million
and $2.0 million, respectively, which begin to expire in 2035 and 2030,
respectively.

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Critical Accounting Policies and Significant Judgments and Estimates
Our consolidated financial statements are prepared in accordance with generally
accepted accounting principles in the U.S., or GAAP. The preparation of our
consolidated financial statements and related disclosures requires us to make
estimates and judgments that affect the reported amounts of assets, liabilities,
costs and expenses, and the disclosure of contingent assets and liabilities in
our consolidated 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.
While our significant accounting policies are described in more detail in Note 2
to our consolidated financial statements included in this Annual Report on Form
10-K,
we believe that the following accounting policies are those most critical to the
judgments and estimates used in the preparation of our consolidated financial
statements.
Research and Development Expenses
As part of the process of preparing our consolidated financial statements, we
are required to estimate our accrued research and development expenses. This
process involves reviewing open contracts and purchase orders, communicating
with our applicable personnel to identify services that have been performed on
our behalf and estimating the level of service performed and the associated cost
incurred for the service when we have not yet been invoiced or otherwise
notified of actual costs. The majority of our service providers invoice us in
arrears for services performed, on a
pre-determined
schedule or when contractual milestones are met; however, some require advance
payments. We make estimates of our accrued expenses as of each balance sheet
date in the consolidated financial statements based on facts and circumstances
known to us at that time. We periodically confirm the accuracy of the estimates
with the service providers and make adjustments if necessary. Examples of
estimated accrued research and development expenses include fees paid to:

  •   vendors in connection with the preclinical development activities;



  •   CROs in connection with preclinical and clinical trials;



     •    CMOs in connection with the production of preclinical and clinical trial
          materials; and



  •   investigative sites in connection with clinical trials.

We base our expenses related to preclinical studies and clinical trials on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple research institutions and CROs that conduct and manage preclinical studies and clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or prepaid expense accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.



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Stock-Based Compensation
We measure all stock options and other stock-based awards granted to employees,
directors and
non-employees
based on the fair value on the date of the grant and recognize compensation
expense of those awards over the requisite service period, which is generally
the vesting period of the respective award. Generally, we issue awards with
either service-only vesting conditions and record expense using the
straight-line method or service and performance vesting conditions and record
expense when achievement of the performance condition becomes probable using the
graded-vesting method. We have historically granted stock options with exercise
prices equivalent to the fair value of our common stock as of the date of the
grant. The fair value of our common stock is based on quoted market prices. We
estimate the fair value of each stock option award using the Black-Scholes
option-pricing model, which uses as inputs the fair value of our common stock
and assumptions we make for the volatility of our common stock, the expected
term of our stock options, the risk-free interest rate for a period that
approximates the expected term of our stock options and our expected dividend
yield. We do not estimate and apply a forfeiture rate as we have elected to
account for forfeitures as they occur.
Results of Operations
Comparison of the Years Ended December 31, 2020 and 2019
The following table summarizes our results of operations for the years ended
December 31, 2020 and 2019:

                                   Year Ended December 31,
                                     2020             2019          Change
                                               (in thousands)
Operating expenses:
Research and development         $     50,615       $  59,208      $ (8,593 )
General and administrative             28,087          23,761         4,326

Total operating expenses               78,702          82,969        (4,267 )

Loss from operations                  (78,702 )       (82,969 )       4,267
Interest and other income, net          3,766           6,200        (2,434 )

Net loss                         $    (74,936 )     $ (76,769 )    $  1,833

Research and Development Expenses



                                                   Year Ended December 31,
                                                    2020              2019           Change
                                                               (in thousands)
Direct research and development expenses by
program:
Conditioning                                    $     16,127        $  18,958       $ (2,831 )
Mobilization                                           4,066            6,702         (2,636 )
Cell Therapy                                           4,398            7,167         (2,769 )
Unallocated expenses:
Personnel related (including stock-based
compensation)                                         14,848           13,784          1,064
Consultant (including stock-based
compensation)                                          1,196            2,503         (1,307 )
Facility related and other                             9,980           10,094           (114 )

Total research and development expenses $ 50,615 $ 59,208 $ (8,593 )





Expenses related to our conditioning program decreased primarily due to lower
process development and manufacturing costs. In 2019, we incurred higher
manufacturing costs to support our
IND-enabling
studies and future clinical trials. The decrease in expenses related to our
mobilization program was primarily due to a

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decrease in clinical trial costs for our
MGTA-145
Phase 1 clinical trials which were completed in the first quarter of 2020.
Expenses related to our cell therapy program decreased primarily due to the
completion of the investigator-initiated Phase 2 clinical trial
of MGTA-456 in
patients with blood cancers in the second quarter of 2020 and the discontinuance
of the Phase 2 trial in inherited metabolic diseases in June 2020.
The increase in personnel related costs was primarily due to the hiring of more
senior level employees in our research and development function. The decrease in
consultant costs was primarily due to a decrease in stock-based compensation.
Consultant costs for the year ended December 31, 2020 and 2019 included
stock-based compensation expense of $0.5 million and $1.6 million, respectively.
General and Administrative Expenses

                                                     Year Ended December 31,
                                                      2020              2019          Change
                                                                (in thousands)
Personnel related (including stock-based
compensation)                                     $     14,219        $  11,800       $ 2,419
Professional and consultant                              7,290            6,386           904
Facility related and other                               6,578            5,575         1,003

Total general and administrative expenses $ 28,087 $ 23,761 $ 4,326





The increase in personnel related costs was due primarily to an increase in
headcount to support our business including an increase in stock-based
compensation. Personnel related costs for the year ended December 31, 2020 and
2019 included stock-based compensation expense of $6.3 million and $5.4 million,
respectively. The increase in professional and consultant costs was primarily
due to an increase in patent related legal costs. The increase in facility
related and other was primarily due to an increase in director and officer
insurance and recruiting costs.
Interest and Other Income, Net
The decrease in interest and other income, net was primarily due to a decrease
in interest income of $2.5 million resulting from lower interest rates on
invested balances.
Liquidity and Capital Resources
Since our inception, we have incurred significant operating losses. We have not
yet commercialized any of our product candidates and we do not expect to
generate revenue from sales of any product candidates for several years, if at
all. In June 2018, we completed the IPO of our common stock. In May 2019, we
issued and sold 4,887,500 shares of our common stock, including the
underwriters' exercise in full of their option to purchase additional shares of
common stock, in a
follow-on
public offering at a public offering price of $13.25 per share, resulting in net
proceeds of $60.3 million after deducting underwriting discounts and commissions
and other offering expenses. In June 2020, we issued and sold 8,625,000 shares
of our common stock, including the underwriters' exercise in full of their
option to purchase additional shares of common stock, in a
follow-on
public offering at a public offering price of $8.00 per share, resulting in net
proceeds of $64.6 million after deducting underwriting discounts and commission
and other offering expenses.
On August 8, 2019, we filed a shelf registration statement on Form
S-3,
or Shelf, with the Securities and Exchange Commission, or SEC, which covers the
offering, issuance and sale by us of up to an aggregate of $350.0 million of our
common stock, preferred stock, debt securities, warrants and/or units of any
combination thereof. We simultaneously entered into a sales agreement with Cowen
and Company, LLC, as sales agent, to provide for the issuance and sale by the
Company of up to $100.0 million of our common stock from time to time in
"at-the-market"
offerings under the Shelf, which we refer to as the ATM Program. The Shelf was
declared effective by the SEC on August 19, 2019. As of December 31, 2020, no
sales have been made pursuant to the ATM Program.

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

                                                            Year Ended December 31,
                                                            2020                2019
                                                                (in thousands)
Cash used in operating activities                       $    (64,023 )        $ (57,103 )
Cash provided by (used in) investing activities              (10,635 )            1,532
Cash provided by financing activities                         67,739             62,297

Net increase (decrease) in cash, cash equivalents
and restricted cash                                     $     (6,919 )        $   6,726



Operating Activities
During the year ended December 31, 2020, operating activities used $64.0 million
of cash, primarily resulting from our net loss of $74.9 million and net cash
used by changes in our operating assets and liabilities of $1.2 million,
partially offset by
non-cash
charges of $12.1 million. Net cash used by changes in our operating assets and
liabilities for the year ended December 31, 2020 consisted of a decrease of
$2.7 million in accounts payable and accrued expenses and other current
liabilities, partially offset by a decrease of $1.4 million in prepaid expenses
and other current assets.
During the year ended December 31, 2019, operating activities used $57.1 million
of cash, primarily resulting from our net loss of $76.8 million, partially
offset by
non-cash
charges of $10.8 million and cash provided by changes in our operating assets
and liabilities of $8.8 million. Net cash provided by changes in our operating
assets and liabilities for the year ended December 31, 2019 consisted primarily
of a $5.0 million increase in deferred rent and a $5.2 million increase in
accounts payable and accrued expenses and other current liabilities, partially
offset by an increase of $1.4 million in prepaid expenses and other current
assets.
Changes in accounts payable, accrued expenses and other current liabilities and
prepaid expenses in both periods were generally due to the timing of vendor
invoicing and payments.
Investing Activities
During the year ended December 31, 2020, net cash used by investing activities
was primarily attributable to net purchases of marketable securities of
$10.2 million.
During the year ended December 31, 2019, net cash provided by investing
activities was primarily attributable to net maturities of marketable securities
of $4.6 million, partially offset by purchases of property and equipment of
$3.1 million, consisting primarily of lab equipment and leasehold improvements.
Financing Activities
During the year ended December 31, 2020, net cash provided by financing
activities was $67.7 million, consisting of proceeds from our
follow-on
public offering, net of underwriting discounts and commissions and offering
costs, of $64.6 million and proceeds from the exercise of stock options of
$3.1 million.
During the year ended December 31, 2019, net cash provided by financing
activities was $62.3 million, consisting of proceeds from our
follow-on
public offering, net of underwriting discounts, commissions and offering costs,
of $60.3 million and proceeds from the exercise of stock options of
$2.0 million.

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Funding Requirements
We expect our expenses to increase substantially in connection with our ongoing
activities, particularly as we advance the preclinical activities and clinical
trials for our product candidates in development. In addition, we expect to
incur additional costs associated with operating as a public company. The timing
and amount of our operating expenditures will depend largely on:

     •    the initiation, progress, timing, costs and results of current and future
          preclinical studies and clinical trials for our product candidates,
          including the continuing impact of the
          COVID-19
          pandemic on our operations;



  •   the clinical development plans we establish for these product candidates;



  •   the number and characteristics of product candidates that we develop or may
      in-license;



  •   the terms of any collaboration agreements we may choose to conclude;



     •    the outcome, timing and cost of meeting and maintaining compliance with
          regulatory requirements established by the Food and Drug Administration,
          the European Medical Agency and other comparable foreign regulatory
          authorities;



     •    the cost of filing, prosecuting, defending and enforcing our patent
          claims and other intellectual property rights;



     •    the cost of defending intellectual property disputes, including patent
          infringement actions brought by third parties against us;



     •    the effect of existing or new competing technological and market
          developments;



     •    the cost and timing of completion of commercial-scale outsourced
          manufacturing activities; and



     •    the cost of establishing sales, marketing and distribution capabilities
          for any product candidates for which we may receive regulatory approval
          in regions where we choose to commercialize our products on our own.

As of December 31, 2020, we had cash, cash equivalents and marketable securities of $148.8 million. We believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements into the first quarter of 2023. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. Because of the numerous risks and uncertainties associated with research, development and commercialization of pharmaceutical product candidates, we are unable to estimate the exact amount of our working capital requirements. Our future funding requirements will depend on and could increase significantly as a result of many factors, including those listed above. Until such time, if ever, as we can generate substantial product revenue, we expect to finance our operations through a combination of equity offerings, including sales under our ATM Program, debt financings, collaborations, strategic alliances and marketing, distribution or licensing arrangements. We do not currently have any committed external source of funds. To the extent that we raise additional capital through the sale of equity or convertible debt securities, our stockholders' ownership interest will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our stockholders' rights as a common stockholder. 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, making acquisitions or capital expenditures or declaring dividends. If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings or other arrangements when needed, we may be required to delay, limit, reduce or terminate



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our research, product development or future commercialization efforts or grant
rights to develop and market product candidates that we would otherwise prefer
to develop and market ourselves. Although we continue to pursue these plans,
there is no assurance that we will be successful in obtaining sufficient funding
on terms acceptable to us to fund continuing operations, if at all.
Off-Balance
Sheet Arrangements
We did not have during the periods presented, and we do not currently have, any
off-balance
sheet arrangements, as defined in the rules and regulations of the SEC.
Recently Issued and Adopted Accounting Pronouncements
A description of recently issued accounting pronouncements that may potentially
impact our financial position and results of operations is disclosed in Note 2
to our consolidated financial statements included in this Annual Report on Form
10-K.

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