Aidan Viggiano - 17 Aug 2026 Form 4 Insider Report for TWILIO INC (TWLO)

Reporting relationship: Chief Financial Officer
Issuer ticker: TWLO
Reported as of: 17 Aug 2026
Net transaction value: -$326,863
SEC form: 4
Accepted by SEC: 19 Aug 2026, 16:15:50 UTC
Prior SEC filing: 07 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Juliana Chen as attorney-in-fact for Reporting Person

Key filing fact

Aidan Viggiano filed Form 4 for TWILIO INC (TWLO) on 19 Aug 2026.

Key facts

This page summarizes Aidan Viggiano's Form 4 filing for TWILIO INC (TWLO).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 19 Aug 2026, 16:15.

Change

Previous filing in this sequence was filed on 07 Jul 2026.
Current net transaction value: -$326,863.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001965469 Primary reporting owner

Viggiano Aidan

Relationship: Chief Financial Officer
Address: 101 SPEAR STREET, FIFTH FLOOR, SAN FRANCISCO
Signature: /s/ Juliana Chen as attorney-in-fact for Reporting Person
Signature date: 19 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TWLO transaction

Class A Common Stock

Sale

Transaction value: $142,328
Shares: -610
Change %: -0.56%
Price: $233.32
Shares after: 109,114
Date: 17 Aug 2026
Ownership: Direct
Footnotes: F1, F2, F3

TWLO transaction

Class A Common Stock

Sale

Transaction value: $72,633
Shares: -310
Change %: -0.28%
Price: $234.30
Shares after: 108,804
Date: 17 Aug 2026
Ownership: Direct
Footnotes: F1, F3, F4

TWLO transaction

Class A Common Stock

Sale

Transaction value: $71,426
Shares: -304
Change %: -0.28%
Price: $234.95
Shares after: 108,500
Date: 17 Aug 2026
Ownership: Direct
Footnotes: F1, F3, F5

TWLO transaction

Class A Common Stock

Sale

Transaction value: $40,477
Shares: -170
Change %: -0.16%
Price: $238.10
Shares after: 108,330
Date: 17 Aug 2026
Ownership: Direct
Footnotes: F1, F3, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs"). This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell-to-cover" transaction and does not represent a discretionary sale by the Reporting Person.

Footnote F2

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $232.8450 to $233.8250 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F3

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

Footnote F4

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $233.86 to $234.66 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F5

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $234.8850 to $235.07 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F6

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $237.98 to $238.18 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.