Twilio : Amendment to Initial Statement of Beneficial Ownership (Form 3/A)

Ownership Submission

FORM 3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Boroditsky Marc 2. Date of Event Requiring Statement (Month/Day/Year) 2021-12-15 3. Issuer Name and Ticker or Trading Symbol TWILIO INC [TWLO] (Last) (First) (Middle) C/O TWILIO INC. , 101 SPEAR STREET, FIRST FLOOR 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) Chief Revenue Officer / 5. If Amendment, Date Original Filed(Month/Day/Year) 2021-12-17 (Street) SAN FRANCISCO CA 94105 6. Individual or Join/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security 2. Amount of Securities Beneficially Owned 3. Ownership Form: Direct (D) or Indirect (I) 4. Nature of Indirect Beneficial Ownership

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivate Security	2. Date Exercisable and Expiration Date	3. Title and Amount of Securities Underlying Derivative Security	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)	6. Nature of Indirect Beneficial Ownership
Date Exercisable	Expriation Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Director	10% Owner	Officer	Other
Boroditsky Marc C/O TWILIO INC. 101 SPEAR STREET, FIRST FLOOR SAN FRANCISCO, CA94105			Chief Revenue Officer

Signatures

/s/ Mariam Sattar as attorney in fact for Reporting Person	2021-12-29
**Signature of Reporting Person	Date

Explanation of Responses:

(*)	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
(**)	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	A portion of these shares represent Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer's Class A common stock.
(2)	Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.
(3)	This award originally represented an option to purchase 25,154 shares, of which 2,000 options have been exercised. The shares subject to this option vest in 48 equal monthly installments, with the first installment on June 15, 2018, subject to the Reporting Person's continued service to the Issuer through each vesting date.
(4)	The shares subject to this option vest in 48 equal monthly installments, with the first installment on March 15, 2019, subject to the Reporting Person's continued service to the Issuer through each vesting date.
(5)	The shares subject to this option vest in 48 equal monthly installments, with the first installment on March 15, 2020, subject to the Reporting Person's continued service to the Issuer through each vesting date.
(6)	The shares subject to this option vest 1/16th on May 15, 2021 then in 45 equal monthly installments, subject to the Reporting Person's continued service to the Issuer through each vesting date.
(7)	The shares subject to this option vest in 24 equal monthly installments, with the first installment on December 11, 2021, subject to the Reporting Person's continued service to the Issuer through each vesting date.

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