Fastly, Inc. — Director's Dealing 2021

May 10, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Fastly, Inc. (FSLY)
CIK: 0001517413
Period of Report: 2021-05-06

Reporting Person: Abdiel Capital Management, LLC (10% Owner)
Reporting Person: Abdiel Qualified Master Fund LP (10% Owner)
Reporting Person: Abdiel Capital LP (10% Owner)
Reporting Person: Abdiel Capital Advisors, LP (10% Owner)
Reporting Person: Moran Colin T. (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-06	Class A Common Stock	P	39899	$41.95	Acquired	11389768	Indirect
2021-05-06	Class A Common Stock	P	1364	$41.95	Acquired	11391132	Indirect
2021-05-06	Class A Common Stock	P	329850	$42.44	Acquired	11720982	Indirect
2021-05-06	Class A Common Stock	P	11272	$42.44	Acquired	11732254	Indirect
2021-05-06	Class A Common Stock	P	133067	$43.13	Acquired	11865321	Indirect
2021-05-06	Class A Common Stock	P	4548	$43.13	Acquired	11869869	Indirect

Footnotes

F1: The share numbers in Column 5 represent the aggregated holdings of Abdiel Qualified Master Fund, LP ("AQMF") and Abdiel Capital, LP ("ACLP"). Abdiel Capital Management, LLC is the general partner of AQMF and ACLP, and Abdiel Capital Advisors, LP serves as the investment manager of AQMF and ACLP. Colin T. Moran is the managing member of Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which is the general partner of Abdiel Capital Advisors, LP. By virtue of the foregoing relationships, each of the Reporting Persons may be deemed to beneficially own the securities held by AQMF and ACLP. Each Reporting Person disclaims beneficial ownership of such securities, except to the extent of its or his pecuniary interest therein.

F2: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $41.86 to $41.99. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

F3: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $42.00 to $42.99. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

F4: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $43.00 to $43.56. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.