Artur Bergman - 14 Sep 2026 Form 4 Insider Report for Fastly, Inc. (FSLY)

Reporting relationship: Chief Technology Officer, Director
Issuer ticker: FSLY
Reported as of: 14 Sep 2026
Net transaction value: -$825,151
SEC form: 4
Accepted by SEC: 16 Sep 2026, 16:59:11 UTC
Prior SEC filing: 11 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Tara Seracka, Attorney-in-Fact

Key filing fact

Artur Bergman filed Form 4 for Fastly, Inc. (FSLY) on 16 Sep 2026.

Key facts

This page summarizes Artur Bergman's Form 4 filing for Fastly, Inc. (FSLY).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Sep 2026, 16:59.

Change

Previous filing in this sequence was filed on 11 Sep 2026.
Current net transaction value: -$825,151.

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 0001769490 Primary reporting owner

Bergman Artur

Relationship: Chief Technology Officer, Director
Address: C/O FASTLY, INC., 475 BRANNAN STREET, SUITE 300, SAN FRANCISCO
Signature: /s/ Tara Seracka, Attorney-in-Fact
Signature date: 16 Sep 2026

Reported non-derivative transactions

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

FSLY transaction

Class A Common Stock

Sale

Transaction value: $63,720
Shares: -2,700
Change %: -0.17%
Price: $23.60
Shares after: 1,628,085
Date: 14 Sep 2026
Ownership: See Footnote.
Footnotes: F1, F2, F3

FSLY transaction

Class A Common Stock

Sale

Transaction value: $585,991
Shares: -23,879
Change %: -1.5%
Price: $24.54
Shares after: 1,604,206
Date: 14 Sep 2026
Ownership: See Footnote.
Footnotes: F1, F3, F4

FSLY transaction

Class A Common Stock

Sale

Transaction value: $112,590
Shares: -4,500
Change %: -0.28%
Price: $25.02
Shares after: 1,599,706
Date: 14 Sep 2026
Ownership: See Footnote.
Footnotes: F1, F3, F5

FSLY transaction

Class A Common Stock

Sale

Transaction value: $62,850
Shares: -2,500
Change %: -0.16%
Price: $25.14
Shares after: 1,597,206
Date: 15 Sep 2026
Ownership: See Footnote.
Footnotes: F1, F3, F6

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,896,249
Date: 14 Sep 2026
Ownership: Direct

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 840,005
Date: 14 Sep 2026
Ownership: See Footnote
Footnotes: F7

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 109,686
Date: 14 Sep 2026
Ownership: See Footnote
Footnotes: F8

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 156,521
Date: 14 Sep 2026
Ownership: See Footnote
Footnotes: F9

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 588,671
Date: 14 Sep 2026
Ownership: See Footnote
Footnotes: F10

FSLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 254,808
Date: 14 Sep 2026
Ownership: See Footnote
Footnotes: F11

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 11 footnotes

Footnote F1

The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 4, 2026.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.95 to $23.93, 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), (4), (5) and (6) to this Form 4.

Footnote F3

The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.95 to $24.94, inclusive.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.95 to $25.09, inclusive.

Footnote F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.39, inclusive.

Footnote F7

The shares are held by The Artur Bergman Remainder Trust One DTD 5/2/2019, of which the reporting person is the investment advisor.

Footnote F8

The shares are held by The Artur Bergman Remainder Trust Three DTD 5/2/2019, of which the reporting person is the investment advisor.

Footnote F9

The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.

Footnote F10

The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee.

Footnote F11

The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 5, of which the reporting person is trustee.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .