Charles Lacey Compton III - 04 Mar 2026 Form 4 Insider Report for Fastly, Inc. (FSLY)

Role
CEO, Director
Signature
/s/ Tara Seracka, Attorney-in-Fact
Issuer symbol
FSLY
Transactions as of
04 Mar 2026
Net transactions value
-$1,532,616
Form type
4
Filing time
05 Mar 2026, 16:56:33 UTC
Previous filing
04 Mar 2026
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Compton Charles Lacey III CEO, Director C/O FASTLY, INC., 475 BRANNAN STREET, SUITE 300, SAN FRANCISCO /s/ Tara Seracka, Attorney-in-Fact 05 Mar 2026 0002074428

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FSLY Class A Common Stock Sale $251,218 -12,357 -1.3% $20.33 936,680 04 Mar 2026 Direct F1, F2
transaction FSLY Class A Common Stock Sale $34,141 -1,625 -0.17% $21.01 935,055 04 Mar 2026 Direct F1, F3
transaction FSLY Class A Common Stock Sale $1,247,257 -59,224 -6.3% $21.06 875,831 04 Mar 2026 Direct F4
transaction FSLY Class A Common Stock Award +373,641 +43% $0.000000* 1,249,472 04 Mar 2026 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.89 to $20.87, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.92 to $21.19, inclusive.
F4 Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.
F5 The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. 100% of the RSUs are initially subject to vesting. One-twelfth (8.33%) of the total RSUs will vest on May 15, 2026 and the remainder will vest in 11 equal quarterly installments (August, November, February and May) of one-twelfth thereafter (8.33% of the total RSUs will vest per quarter), in each case subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.