TWILIO INC — Director's Dealing 2021

Mar 2, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TWILIO INC (TWLO)
CIK: 0001447669
Period of Report: 2021-02-25

Reporting Person: Chew Chee (Chief Product Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-25	Class A Common Stock	A	9742	—	Acquired	112497	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-25	Employee Stock Option (right to buy)	$377.59	A	18126	Acquired	2031-02-24	Class A Common Stock (18126.0)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$116.3	2029-02-19	Class A Common Stock (241066.0)	241066	Direct
Employee Stock Option (right to buy)	$117.94	2030-02-21	Class A Common Stock (72956.0)	72956	Direct

Footnotes

F1: The shares reported in this transaction represent Restricted Stock Units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 33% of the RSUs shall vest in equal quarterly installments between the first and second anniversaries of December 31, 2020, 33% of the RSUs shall vest in equal quarterly installments between the second and third anniversaries of December 31, 2020 and 34% of the RSUs shall vest in equal quarterly installments between the third and fourth anniversaries of December 31, 2020, subject to the Reporting Person's continued service to the Issuer through each vesting date.

F2: A portion of these shares represent RSUs. Each RSU represents a contingent right to receive one share of Issuer's Class A common stock.

F3: The shares subject to the stock option vest as follows: 33% of the stock option shall vest in equal quarterly installments between the first and second anniversaries of December 31, 2020, 33% of the stock option shall vest in equal quarterly installments between the second and third anniversaries of December 31, 2020 and 34% of the stock option shall vest in equal quarterly installments between the third and fourth anniversaries of December 31, 2020, subject to the Reporting Person's continued service to the Issuer through each vesting date.

F4: The stock option vests as follows: 25% of the shares subject to the option shall vest on January 14, 2020 and the remaining shares subject to the option shall vest in equal monthly installments over the following three years, subject to the Reporting Person's continued service to the Issuer through each vesting date.

F5: The shares subject to the stock option vest as follows: 33% of the stock option shall vest in equal quarterly installments between the first and second anniversaries of December 31, 2019, 33% of the stock option shall vest in equal quarterly installments between the second and third anniversaries of December 31, 2019 and 34% of the stock option shall vest in equal quarterly installments between the third and fourth anniversaries of December 31, 2019, subject to the Reporting Person's continued service to the Issuer through each vesting date.