FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

DALZELL RICHARD L
2. Issuer Name and Ticker or Trading Symbol

TWILIO INC [ TWLO ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    _____ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle)

C/O TWILIO INC., 101 SPEAR STREET, FIRST FLOOR
3. Date of Earliest Transaction (MM/DD/YYYY)

9/16/2020
(Street)

SAN FRANCISCO, CA 94105
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 9/16/2020  C  1500 A$0 14436 (1)D  
Class A Common Stock 9/16/2020  S(2)  1500 D$226.10 12936 (1)D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (right to buy) $3.86 9/16/2020  M     1500   (3)3/24/2024 Class B Common Stock (4)1500.0 $0 99000 D  
Class B Common Stock (4) (4)9/16/2020  M   1500     (4) (4)Class A Common Stock 1500.0 $0 1500 D  
Class B Common Stock (4) (4)9/16/2020  C     1500   (4) (4)Class A Common Stock 1500.0 $0 0 D  

Explanation of Responses:
(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) The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person.
(3) The shares subject to the option vested in 36 equal installments commencing on March 25, 2014. The shares subject to the option are fully vested and exercisable by the Reporting Person.
(4) 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.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
DALZELL RICHARD L
C/O TWILIO INC.
101 SPEAR STREET, FIRST FLOOR
SAN FRANCISCO, CA 94105
X



Signatures
/s/ Shanti Ariker as attorney in fact for Reporting Person9/18/2020
**Signature of Reporting PersonDate

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