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Compton Charles Lacey III

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SEC CIK
0002074428

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Fastly, Inc.FSLY · Entity 785Director · CEOSeptember 14, 2026September 16, 2026

Disclosed balances

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Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Fastly, Inc.

Report date September 14, 2026 · Filed September 16, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect851,949 Reported balance After 2026-09-14 transaction · row 1
1 source row

Row 1 · 2026-09-14 · Sale · Disposed 50,392 · Balance 851,949

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.89 to $25.01, 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 range set forth in footnote (2) to this Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.89 to $25.01, 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 range set forth in footnote (2) to this Form 4.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

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Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 14, 2026 Filed Sep 16, 2026 20:58 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 50,392 $24.93 $1,256,272.56
Disclosure

SEC source: 0001517413-26-000282 · wk-form4_1789592322.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 851,949

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.89 to $25.01, 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 range set forth in footnote (2) to this Form 4.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:51 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 2,436 $21.23 $51,716.28
Disclosure

SEC source: 0001517413-26-000274 · wk-form4_1789073480.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 902,341

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

Read SEC document
September 02, 2026 Filed Sep 4, 2026 21:02 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 9,458 $20.42 $193,132.36
Disclosure

SEC source: 0001517413-26-000268 · wk-form4_1788555765.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 904,777

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.26 to $20.75, 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 range set forth in footnote (2) to this Form 4.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 21:03 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 1,100 $22.61 $24,871.00
Disclosure

SEC source: 0001517413-26-000265 · wk-form4_1788382997.xml · nonDerivative · entry 4

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 914,235

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.60 to $22.65, inclusive.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 21:03 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 18,978 $21.86 $414,859.08
Disclosure

SEC source: 0001517413-26-000265 · wk-form4_1788382997.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 915,335

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.59 to $22.51, inclusive.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 21:03 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 35,501 $21.10 $749,071.10
Disclosure

SEC source: 0001517413-26-000265 · wk-form4_1788382997.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 934,313

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.59 to $21.58, 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 (3), (4) and (5) to this Form 4.

Read SEC document
August 31, 2026 Filed Sep 2, 2026 21:03 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 15,028 $23.00 $345,644.00
Disclosure

SEC source: 0001517413-26-000265 · wk-form4_1788382997.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 969,814

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 700 $26.05 $18,235.00
Disclosure

SEC source: 0001517413-26-000242 · wk-form4_1787259697.xml · nonDerivative · entry 4

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 984,842

F3 · kind: 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.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.70 to $26.30, inclusive.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 5,400 $25.08 $135,432.00
Disclosure

SEC source: 0001517413-26-000242 · wk-form4_1787259697.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 985,542

F3 · kind: 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.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.64 to $25.57, inclusive.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 5,098 $24.08 $122,759.84
Disclosure

SEC source: 0001517413-26-000242 · wk-form4_1787259697.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 990,942

F3 · kind: 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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.63 to $24.62, inclusive.

Read SEC document
August 18, 2026 Filed Aug 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 34,552 $28.60 $988,187.20
Disclosure

SEC source: 0001517413-26-000242 · wk-form4_1787259697.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 996,040

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.60 to $29.11, 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.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 22:27 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 14,868 $25.00 $371,700.00
Disclosure

SEC source: 0001517413-26-000224 · wk-form4_1786055243.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,030,592

F1 · kind: 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.

Read SEC document
July 17, 2026 Filed Jul 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 155 $21.90 $3,394.50
Disclosure

SEC source: 0001517413-26-000203 · wk-form4_1784581289.xml · nonDerivative · entry 4

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,045,460

F2 · kind: 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.

Read SEC document
July 17, 2026 Filed Jul 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 4,204 $21.10 $88,704.40
Disclosure

SEC source: 0001517413-26-000203 · wk-form4_1784581289.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,045,615

F2 · kind: 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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.77 to $21.76, inclusive.

Read SEC document
July 17, 2026 Filed Jul 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 2,714 $20.51 $55,664.14
Disclosure

SEC source: 0001517413-26-000203 · wk-form4_1784581289.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,049,819

F2 · kind: 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.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.76 to $20.73, 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 (3) and (4) to this Form 4.

Read SEC document
July 16, 2026 Filed Jul 20, 2026 21:01 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 11,412 $20.65 $235,657.80
Disclosure

SEC source: 0001517413-26-000203 · wk-form4_1784581289.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,052,533

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
June 03, 2026 Filed Jun 5, 2026 20:59 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 85 $21.85 $1,857.25
Disclosure

SEC source: 0001517413-26-000184 · wk-form4_1780693195.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,063,945

F1 · kind: 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.

Read SEC document
June 03, 2026 Filed Jun 5, 2026 20:59 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 5,746 $21.15 $121,527.90
Disclosure

SEC source: 0001517413-26-000184 · wk-form4_1780693195.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,064,030

F1 · kind: 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.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.83 to $21.62, inclusive.

Read SEC document
June 03, 2026 Filed Jun 5, 2026 20:59 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 3,482 $20.17 $70,231.94
Disclosure

SEC source: 0001517413-26-000184 · wk-form4_1780693195.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,069,776

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.79 to $20.37, 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.

Read SEC document
May 29, 2026 Filed Jun 2, 2026 20:41 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 15,028 $16.96 $254,874.88
Disclosure

SEC source: 0001517413-26-000167 · wk-form4_1780432876.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,073,258

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
May 19, 2026 Filed May 20, 2026 22:00 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 11,275 $16.48 $185,812.00
Disclosure

SEC source: 0001517413-26-000148 · wk-form4_1779314415.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,088,286

F3 · kind: 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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.23 to $16.71, inclusive.

Read SEC document
May 18, 2026 Filed May 20, 2026 22:00 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 34,334 $16.85 $578,527.90
Disclosure

SEC source: 0001517413-26-000148 · wk-form4_1779314415.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,099,561

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.65 to $16.85, 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 (4) to this Form 4.

Read SEC document
April 17, 2026 Filed Apr 20, 2026 21:07 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 400 $25.40 $10,160.00
Disclosure

SEC source: 0001517413-26-000118 · wk-form4_1776719240.xml · nonDerivative · entry 4

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,133,895

F1 · kind: 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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.16 to $25.99, inclusive.

Read SEC document
April 17, 2026 Filed Apr 20, 2026 21:07 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 6,659 $24.52 $163,278.68
Disclosure

SEC source: 0001517413-26-000118 · wk-form4_1776719240.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,134,295

F1 · kind: 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.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.06 to $24.94, 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 3 and 4 to this Form 4.

Read SEC document
April 16, 2026 Filed Apr 20, 2026 21:07 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 11,432 $23.69 $270,824.08
Disclosure

SEC source: 0001517413-26-000118 · wk-form4_1776719240.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,140,954

F2 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
April 16, 2026 Filed Apr 20, 2026 21:07 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 11,042 $25.00 $276,050.00
Disclosure

SEC source: 0001517413-26-000118 · wk-form4_1776719240.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,152,386

F1 · kind: 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.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 20:18 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 49,350 $25.00 $1,233,750.00
Disclosure

SEC source: 0001517413-26-000109 · wk-form4_1773433109.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,163,428

F1 · kind: 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.

Read SEC document
March 05, 2026 Filed Mar 9, 2026 22:17 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 7,400 $21.22 $157,028.00
Disclosure

SEC source: 0001517413-26-000101 · wk-form4_1773094652.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,212,778

F1 · kind: 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.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.09 to $21.41, inclusive.

Read SEC document
March 05, 2026 Filed Mar 9, 2026 22:17 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 29,294 $20.55 $601,991.70
Disclosure

SEC source: 0001517413-26-000101 · wk-form4_1773094652.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,220,178

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.09 to $21.08, 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.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:56 UTC Fastly, Inc. FSLY · Entity 785 GrantClass A Common Stock 373,641 $0.00 $0.00
Disclosure

SEC source: 0001517413-26-000094 · wk-form4_1772747791.xml · nonDerivative · entry 4

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,249,472

F5 · shares: 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.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:56 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 59,224 $21.06 $1,247,257.44
Disclosure

SEC source: 0001517413-26-000094 · wk-form4_1772747791.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 875,831

F4 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:56 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 1,625 $21.01 $34,141.25
Disclosure

SEC source: 0001517413-26-000094 · wk-form4_1772747791.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 935,055

F1 · kind: 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.

F3 · price: 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.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:56 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 12,357 $20.33 $251,217.81
Disclosure

SEC source: 0001517413-26-000094 · wk-form4_1772747791.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 936,680

F1 · kind: 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 · price: 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.

Read SEC document
March 03, 2026 Filed Mar 4, 2026 21:07 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 13,244 $20.30 $268,853.20
Disclosure

SEC source: 0001517413-26-000086 · wk-form4_1772658473.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 949,037

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.92 to $20.31, 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 range set forth in footnote (2) to this Form 4.

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February 28, 2026 Filed Mar 3, 2026 21:42 UTC Fastly, Inc. FSLY · Entity 785 GrantClass A Common Stock 263,277 $0.00 $0.00
Disclosure

SEC source: 0001517413-26-000079 · wk-form4_1772574162.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 962,281

F2 · shares: Represents the shares subject to performance-based restricted stock unit awards (PRSUs) earned based on the achievement of pre-established performance goals during the Issuer's fiscal year 2025. 33% of the number of PRSUs vested on the Transaction Date, and 8.375% of the PRSUs will vest in quarterly installments thereafter on May 28, August 28, November 28, and February 28, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

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February 28, 2026 Filed Mar 3, 2026 21:42 UTC Fastly, Inc. FSLY · Entity 785 GrantClass A Common Stock 87,259 $0.00 $0.00
Disclosure

SEC source: 0001517413-26-000079 · wk-form4_1772574162.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 699,004

F2 · shares: Represents the shares subject to performance-based restricted stock unit awards (PRSUs) earned based on the achievement of pre-established performance goals during the Issuer's fiscal year 2025. 33% of the number of PRSUs vested on the Transaction Date, and 8.375% of the PRSUs will vest in quarterly installments thereafter on May 28, August 28, November 28, and February 28, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

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February 28, 2026 Filed Mar 3, 2026 21:42 UTC Fastly, Inc. FSLY · Entity 785 GrantClass A Common Stock 27,226 $0.00 $0.00
Disclosure

SEC source: 0001517413-26-000079 · wk-form4_1772574162.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 611,745

F1 · shares: Fully vested. Under the 2025 Bonus Plan, subject to meeting performance criteria, the reporting person was eligible to receive a bonus to be paid in the form of fully-vested restricted stock units.

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February 19, 2026 Filed Feb 23, 2026 21:55 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 1,300 $20.11 $26,143.00
Disclosure

SEC source: 0001517413-26-000048 · wk-form4_1771883721.xml · nonDerivative · entry 3

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 584,519

F1 · kind: 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.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.02 to $20.20, inclusive.

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February 19, 2026 Filed Feb 23, 2026 21:55 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 5,400 $19.52 $105,408.00
Disclosure

SEC source: 0001517413-26-000048 · wk-form4_1771883721.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 585,819

F1 · kind: 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.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.96 to $19.95, inclusive.

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February 19, 2026 Filed Feb 23, 2026 21:55 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 8,097 $18.26 $147,851.22
Disclosure

SEC source: 0001517413-26-000048 · wk-form4_1771883721.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 591,219

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.96 to $18.95, 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) to (4) to this Form 4.

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February 18, 2026 Filed Feb 20, 2026 21:34 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 12,916 $17.53 $226,417.48
Disclosure

SEC source: 0001517413-26-000042 · wk-form4_1771623264.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,316

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.36 to $17.53. 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 range set forth in footnote (2) to this Form 4.

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January 20, 2026 Filed Jan 22, 2026 00:48 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 4,638 $8.81 $40,860.78
Disclosure

SEC source: 0001517413-26-000010 · wk-form4_1769042933.xml · nonDerivative · entry 2

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 612,232

F3 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.75 to $8.93, inclusive.

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January 16, 2026 Filed Jan 22, 2026 00:48 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 9,044 $9.07 $82,029.08
Disclosure

SEC source: 0001517413-26-000010 · wk-form4_1769042933.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 616,870

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.07 to $9.08. 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 (4) to this Form 4.

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November 26, 2025 Filed Dec 1, 2025 21:11 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 14,944 $11.79 $176,189.76
Disclosure

SEC source: 0001517413-25-000333 · wk-form4_1764623461.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 625,914

F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.43 to $12.25. 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 range set forth in footnote 2 to this Form 4.

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November 18, 2025 Filed Nov 20, 2025 21:59 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 18,455 $10.23 $188,794.65
Disclosure

SEC source: 0001517413-25-000319 · wk-form4_1763675972.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 640,858

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.23 to $10.25. 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 range set forth in footnote (2) to this Form 4.

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October 16, 2025 Filed Oct 20, 2025 20:56 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 11,378 $8.41 $95,688.98
Disclosure

SEC source: 0001517413-25-000280 · wk-form4_1760993777.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 659,313

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

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September 03, 2025 Filed Sep 5, 2025 21:13 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 2,954 $7.45 $22,007.30
Disclosure

SEC source: 0001517413-25-000258 · wk-form4_1757106807.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 670,691

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

Read SEC document
August 18, 2025 Filed Aug 20, 2025 21:48 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 15,335 $6.88 $105,504.80
Disclosure

SEC source: 0001517413-25-000238 · wk-form4_1755726497.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 673,645

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.84 to $6.88. 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 range set forth in footnote (2) to this Form 4.

Read SEC document
August 10, 2025 Filed Aug 13, 2025 21:18 UTC Fastly, Inc. FSLY · Entity 785 GrantClass A Common Stock 277,777 $0.00 $0.00
Disclosure

SEC source: 0001517413-25-000224 · wk-form4_1755119896.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 688,980

F1 · shares: 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-sixteenth (6.25%) of the total RSUs will vest on August 15, 2025 and the remainder will vest in 15 equal quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), provided in each case that the grantee is providing Continuous Service (as defined in the 2019 Plan) to the Company. Provided that if a quarterly vesting date occurs on any day that is not a trading day, the quarterly vesting date shall instead be the next trading day.

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July 17, 2025 Filed Jul 21, 2025 20:25 UTC Fastly, Inc. FSLY · Entity 785 SaleClass A Common Stock 2,183 $6.83 $14,909.89
Disclosure

SEC source: 0001517413-25-000193 · wk-form4_1753129544.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 411,203

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on May 30, 2024.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.