{"transactions":[{"id":4623452,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-09-21T20:45:22.000Z","date":"2026-09-17","kind":"sale","planned":true,"acquired":false,"shares":5690,"price":25.38,"value":144412.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.99 to $25.73, inclusive."}],"balance_after":1281583,"source":{"system":"sec-edgar","filing":"0001517413-26-000294","document":"wk-form4_1790023520.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000294/wk-form4_1790023520.xml","form_type":"4"}},{"id":4623451,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-09-21T20:45:22.000Z","date":"2026-09-17","kind":"sale","planned":true,"acquired":false,"shares":34325,"price":24.58,"value":843708.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.99 to $24.98, inclusive."}],"balance_after":1287273,"source":{"system":"sec-edgar","filing":"0001517413-26-000294","document":"wk-form4_1790023520.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000294/wk-form4_1790023520.xml","form_type":"4"}},{"id":4623450,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-09-21T20:45:22.000Z","date":"2026-09-17","kind":"sale","planned":true,"acquired":false,"shares":1800,"price":23.56,"value":42408.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.98 to $23.88, 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), (3) and (4)to this Form 4."}],"balance_after":1321598,"source":{"system":"sec-edgar","filing":"0001517413-26-000294","document":"wk-form4_1790023520.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000294/wk-form4_1790023520.xml","form_type":"4"}},{"id":4622910,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-09-18T20:25:29.000Z","date":"2026-09-16","kind":"sale","planned":false,"acquired":false,"shares":34820,"price":23.85,"value":830457.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.84 to $24.43, 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."}],"balance_after":1323398,"source":{"system":"sec-edgar","filing":"0001517413-26-000287","document":"wk-form4_1789763127.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000287/wk-form4_1789763127.xml","form_type":"4"}},{"id":938,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-09-02T21:03:14.000Z","date":"2026-08-31","kind":"sale","planned":false,"acquired":false,"shares":19624,"price":23,"value":451352.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."}],"balance_after":1358218,"source":{"system":"sec-edgar","filing":"0001517413-26-000264","document":"wk-form4_1788382991.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000264/wk-form4_1788382991.xml","form_type":"4"}},{"id":680228,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-08-20T21:08:10.000Z","date":"2026-08-18","kind":"sale","planned":false,"acquired":false,"shares":14936,"price":28.6,"value":427169.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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 range set forth in footnote (2) to this Form 4."}],"balance_after":1377842,"source":{"system":"sec-edgar","filing":"0001517413-26-000246","document":"wk-form4_1787260088.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000246/wk-form4_1787260088.xml","form_type":"4"}},{"id":730784,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-06-22T21:02:08.000Z","date":"2026-06-17","kind":"sale","planned":true,"acquired":false,"shares":41716,"price":17.77,"value":741293.32,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."}],"balance_after":1392778,"source":{"system":"sec-edgar","filing":"0001517413-26-000199","document":"wk-form4_1782162125.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000199/wk-form4_1782162125.xml","form_type":"4"}},{"id":732384,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-06-18T20:58:01.000Z","date":"2026-06-16","kind":"sale","planned":false,"acquired":false,"shares":34919,"price":18.15,"value":633779.85,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.83 to $18.16, 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."}],"balance_after":1434494,"source":{"system":"sec-edgar","filing":"0001517413-26-000197","document":"wk-form4_1781816278.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000197/wk-form4_1781816278.xml","form_type":"4"}},{"id":755275,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-06-02T20:41:07.000Z","date":"2026-05-29","kind":"sale","planned":false,"acquired":false,"shares":19622,"price":16.96,"value":332789.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."}],"balance_after":1469413,"source":{"system":"sec-edgar","filing":"0001517413-26-000165","document":"wk-form4_1780432864.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000165/wk-form4_1780432864.xml","form_type":"4"}},{"id":770259,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-05-20T22:00:23.000Z","date":"2026-05-18","kind":"sale","planned":false,"acquired":false,"shares":14843,"price":16.85,"value":250104.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.67 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 range set forth in footnote (2) to this Form 4."}],"balance_after":1489035,"source":{"system":"sec-edgar","filing":"0001517413-26-000149","document":"wk-form4_1779314421.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000149/wk-form4_1779314421.xml","form_type":"4"}},{"id":833726,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-19T20:30:20.000Z","date":"2026-03-18","kind":"sale","planned":true,"acquired":false,"shares":15800,"price":27.3,"value":431340.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.11 to $27.56, inclusive."}],"balance_after":1503878,"source":{"system":"sec-edgar","filing":"0001517413-26-000114","document":"wk-form4_1773952217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000114/wk-form4_1773952217.xml","form_type":"4"}},{"id":833725,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-19T20:30:20.000Z","date":"2026-03-18","kind":"sale","planned":true,"acquired":false,"shares":11782,"price":26.71,"value":314697.22,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.11 to $27.10, inclusive."}],"balance_after":1519678,"source":{"system":"sec-edgar","filing":"0001517413-26-000114","document":"wk-form4_1773952217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000114/wk-form4_1773952217.xml","form_type":"4"}},{"id":833724,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-19T20:30:20.000Z","date":"2026-03-18","kind":"sale","planned":true,"acquired":false,"shares":7691,"price":25.63,"value":197120.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.11 to $26.10, inclusive."}],"balance_after":1531460,"source":{"system":"sec-edgar","filing":"0001517413-26-000114","document":"wk-form4_1773952217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000114/wk-form4_1773952217.xml","form_type":"4"}},{"id":833723,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-19T20:30:20.000Z","date":"2026-03-18","kind":"sale","planned":true,"acquired":false,"shares":6409,"price":24.86,"value":159327.74,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.11 to $25.09, inclusive."}],"balance_after":1539151,"source":{"system":"sec-edgar","filing":"0001517413-26-000114","document":"wk-form4_1773952217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000114/wk-form4_1773952217.xml","form_type":"4"}},{"id":833722,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-19T20:30:20.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":34953,"price":22.28,"value":778752.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.28 to $22.40, 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), (6) and (7) to this Form 4."}],"balance_after":1545560,"source":{"system":"sec-edgar","filing":"0001517413-26-000114","document":"wk-form4_1773952217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000114/wk-form4_1773952217.xml","form_type":"4"}},{"id":858980,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-05T21:56:53.000Z","date":"2026-03-04","kind":"sale","planned":false,"acquired":false,"shares":73715,"price":21.06,"value":1552437.9,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."}],"balance_after":1580513,"source":{"system":"sec-edgar","filing":"0001517413-26-000097","document":"wk-form4_1772747811.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000097/wk-form4_1772747811.xml","form_type":"4"}},{"id":858979,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-05T21:56:53.000Z","date":"2026-03-04","kind":"grant","planned":false,"acquired":true,"shares":135869,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":1654228,"source":{"system":"sec-edgar","filing":"0001517413-26-000097","document":"wk-form4_1772747811.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000097/wk-form4_1772747811.xml","form_type":"4"}},{"id":868744,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-03T21:42:59.000Z","date":"2026-02-28","kind":"grant","planned":false,"acquired":true,"shares":376110,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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.\n33% 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\nthe Reporting Person's continued service with the Issuer through each applicable vesting date."}],"balance_after":1518359,"source":{"system":"sec-edgar","filing":"0001517413-26-000081","document":"wk-form4_1772574177.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000081/wk-form4_1772574177.xml","form_type":"4"}},{"id":868743,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-03T21:42:59.000Z","date":"2026-02-28","kind":"grant","planned":false,"acquired":true,"shares":37610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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.\n33% 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\nthe Reporting Person's continued service with the Issuer through each applicable vesting date."}],"balance_after":1142249,"source":{"system":"sec-edgar","filing":"0001517413-26-000081","document":"wk-form4_1772574177.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000081/wk-form4_1772574177.xml","form_type":"4"}},{"id":868742,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-03-03T21:42:59.000Z","date":"2026-02-28","kind":"grant","planned":false,"acquired":true,"shares":109075,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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.\n33% 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\nthe Reporting Person's continued service with the Issuer through each applicable vesting date."}],"balance_after":1104639,"source":{"system":"sec-edgar","filing":"0001517413-26-000081","document":"wk-form4_1772574177.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000081/wk-form4_1772574177.xml","form_type":"4"}},{"id":891007,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2026-02-20T21:34:33.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":6573,"price":17.53,"value":115224.69,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":995564,"source":{"system":"sec-edgar","filing":"0001517413-26-000043","document":"wk-form4_1771623270.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741326000043/wk-form4_1771623270.xml","form_type":"4"}},{"id":963364,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-12-18T22:25:08.000Z","date":"2025-12-17","kind":"sale","planned":true,"acquired":false,"shares":42118,"price":10.1,"value":425391.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.99 to $10.22, inclusive."}],"balance_after":1002137,"source":{"system":"sec-edgar","filing":"0001517413-25-000355","document":"wk-form4_1766096700.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000355/wk-form4_1766096700.xml","form_type":"4"}},{"id":963363,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-12-18T22:25:08.000Z","date":"2025-12-16","kind":"sale","planned":true,"acquired":false,"shares":34517,"price":10.15,"value":350347.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.15 to $10.20. 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."}],"balance_after":1044255,"source":{"system":"sec-edgar","filing":"0001517413-25-000355","document":"wk-form4_1766096700.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000355/wk-form4_1766096700.xml","form_type":"4"}},{"id":992729,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-11-20T21:59:47.000Z","date":"2025-11-18","kind":"sale","planned":false,"acquired":false,"shares":9779,"price":10.23,"value":100039.17,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.22 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."}],"balance_after":1078772,"source":{"system":"sec-edgar","filing":"0001517413-25-000321","document":"wk-form4_1763675984.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000321/wk-form4_1763675984.xml","form_type":"4"}},{"id":1035725,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-09-19T20:41:04.000Z","date":"2025-09-17","kind":"sale","planned":true,"acquired":false,"shares":42172,"price":8.41,"value":354666.52,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.34 to $8.47. 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."}],"balance_after":1088551,"source":{"system":"sec-edgar","filing":"0001517413-25-000268","document":"wk-form4_1758314462.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000268/wk-form4_1758314462.xml","form_type":"4"}},{"id":1038178,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-09-17T20:46:35.000Z","date":"2025-09-16","kind":"sale","planned":true,"acquired":false,"shares":34462,"price":8.63,"value":297407.06,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.62 to $8.63, inclusive."}],"balance_after":1130723,"source":{"system":"sec-edgar","filing":"0001517413-25-000265","document":"wk-form4_1758141992.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000265/wk-form4_1758141992.xml","form_type":"4"}},{"id":1038177,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-09-17T20:46:35.000Z","date":"2025-09-15","kind":"sale","planned":true,"acquired":false,"shares":178931,"price":8.28,"value":1481548.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.25 to $8.40. 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."}],"balance_after":1165185,"source":{"system":"sec-edgar","filing":"0001517413-25-000265","document":"wk-form4_1758141992.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000265/wk-form4_1758141992.xml","form_type":"4"}},{"id":1046965,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-09-05T21:13:17.000Z","date":"2025-09-03","kind":"sale","planned":false,"acquired":false,"shares":619,"price":7.45,"value":4611.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."}],"balance_after":1344116,"source":{"system":"sec-edgar","filing":"0001517413-25-000256","document":"wk-form4_1757106794.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000256/wk-form4_1757106794.xml","form_type":"4"}},{"id":1060482,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-08-20T21:47:38.000Z","date":"2025-08-18","kind":"sale","planned":false,"acquired":false,"shares":9076,"price":6.88,"value":62442.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":1344735,"source":{"system":"sec-edgar","filing":"0001517413-25-000236","document":"wk-form4_1755726455.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000236/wk-form4_1755726455.xml","form_type":"4"}},{"id":1067983,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Go to Market"}}],"security":"Class A Common Stock","published_at":"2025-08-13T21:19:47.000Z","date":"2025-08-10","kind":"grant","planned":false,"acquired":true,"shares":66666,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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), in each case subject to the Reporting Person's continued service with the Issuer through each applicable vesting date."}],"balance_after":1353811,"source":{"system":"sec-edgar","filing":"0001517413-25-000226","document":"wk-form4_1755119984.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000226/wk-form4_1755119984.xml","form_type":"4"}},{"id":1105230,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Class A Common Stock","published_at":"2025-06-20T21:01:07.000Z","date":"2025-06-17","kind":"sale","planned":false,"acquired":false,"shares":127608,"price":6.95,"value":886875.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.80 to $6.96. 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."}],"balance_after":1287145,"source":{"system":"sec-edgar","filing":"0001517413-25-000180","document":"wk-form4_1750453260.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000180/wk-form4_1750453260.xml","form_type":"4"}},{"id":1140729,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Class A Common Stock","published_at":"2025-05-20T20:31:45.000Z","date":"2025-05-16","kind":"sale","planned":false,"acquired":false,"shares":4745,"price":8.19,"value":38861.55,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units."}],"balance_after":1414753,"source":{"system":"sec-edgar","filing":"0001517413-25-000125","document":"wk-form4_1747773098.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000125/wk-form4_1747773098.xml","form_type":"4"}},{"id":1238876,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-01T02:41:21.000Z","date":"2025-02-26","kind":"grant","planned":false,"acquired":true,"shares":193340,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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, 2025 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."}],"balance_after":1419498,"source":{"system":"sec-edgar","filing":"0001517413-25-000078","document":"wk-form4_1740796875.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741325000078/wk-form4_1740796875.xml","form_type":"4"}},{"id":1455469,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":815,"kind":"person","name":"Lovett Scott R.","position":1,"cik":"0002024441","reported_name":"Lovett Scott R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Class A Common Stock","published_at":"2024-07-12T20:32:15.000Z","date":"2024-07-10","kind":"grant","planned":false,"acquired":true,"shares":1226158,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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 over a period of four years."},{"field":"shares","element":"transactionShares","label":"F2","text":"One-fourth (25%) of the RSUs vest on June 15, 2025 and the remainder will vest in 12 equal quarterly installments of one-sixteenth (6.25%) thereafter, in each case subject to the Reporting Person's continued service with the Issuer through each applicable vesting date."}],"balance_after":1226158,"source":{"system":"sec-edgar","filing":"0001517413-24-000161","document":"wk-form4_1720816327.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024441/000151741324000161/wk-form4_1720816327.xml","form_type":"4"}}]}