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In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. (\"August VI SO\"). ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. Hornik, Howard Hartenbaum and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI SO. Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":2886971,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2491152},"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243545,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"exercise","acquired":false,"shares":2974454,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F9","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held directly by August Capital VI, L.P. (\"August VI\"). August Capital Management VI, L.L.C. 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Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":2886971,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2974454},"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243544,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"other","acquired":true,"shares":109457,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents a pro-rata, in-kind distribution by August VI and August VI SO, without additional consideration, to their respective partners, members and assigns."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"These shares are held directly by W. 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These shares were sold in multiple transactions at prices ranging from $20.29 to $20.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These shares are held directly by Howard Hartenbaum."}],"balance_after":150000,"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243542,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"other","acquired":true,"shares":162476,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents a pro-rata, in-kind distribution by August VI and August VI SO, without additional consideration, to their respective partners, members and assigns."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These shares are held directly by Howard Hartenbaum."}],"balance_after":238488,"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243541,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"other","acquired":false,"shares":2491152,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Represents a pro-rata, in-kind distribution by August VI SO, without additional consideration, to its partners, members and assigns."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. (\"August VI SO\"). ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. Hornik, Howard Hartenbaum and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI SO. Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243540,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"other","acquired":false,"shares":2974454,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents a pro-rata, in-kind distribution by August VI, without additional consideration, to its partners, members and assigns."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held directly by August Capital VI, L.P. 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Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243539,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"exercise","acquired":true,"shares":2491152,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. 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Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":2491152,"source":{"system":"sec-edgar","filing":"0001209191-20-013449","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919120013449/doc4.xml","form_type":"4"}},{"id":3243538,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-02-27T16:54:52.000Z","date":"2020-02-25","kind":"exercise","acquired":true,"shares":2974454,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held directly by August Capital VI, L.P. 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In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. (\"August VI SO\"). ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. 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In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. In addition, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held directly by August Capital VI, L.P. (\"August VI\"). August Capital Management VI, L.L.C. 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The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These shares are held directly by Howard Hartenbaum."}],"balance_after":76012,"source":{"system":"sec-edgar","filing":"0001209191-19-056774","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919119056774/doc4.xml","form_type":"4"}},{"id":3369719,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2019-11-15T17:01:43.000Z","date":"2019-11-13","kind":"sale","acquired":false,"shares":52616,"price":20.6641,"value":1087262.2856,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. 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Following the closing of the initial public offering, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. 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Following the closing of the initial public offering, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. (\"August VI SO\"). 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Following the closing of the initial public offering, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. 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ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. Hornik, a member of the Issuer's Board of Directors, Howard Hartenbaum, and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI SO. Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":1058801},"source":{"system":"sec-edgar","filing":"0001209191-19-031849","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919119031849/doc4.xml","form_type":"4"}},{"id":3516640,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2019-05-21T19:20:40.000Z","date":"2019-05-21","kind":"exercise","acquired":false,"shares":5871576,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock has no expiration date."},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F2","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. Following the closing of the initial public offering, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by August Capital VI Special Opportunities, L.P. (\"August VI SO\"). ACM VI is the general partner of August VI SO and may be deemed to have sole voting and investment power over the shares held by August VI SO. David M. Hornik, a member of the Issuer's Board of Directors, Howard Hartenbaum, and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI SO. Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":5871576},"source":{"system":"sec-edgar","filing":"0001209191-19-031849","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919119031849/doc4.xml","form_type":"4"}},{"id":3516639,"issuer":{"id":785,"kind":"organization","name":"Fastly, Inc.","symbol":"FSLY"},"owners":[{"id":119955,"kind":"organization","name":"August Capital Management VI, L.L.C.","position":1,"cik":"0001552638","reported_name":"August Capital Management VI, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151322,"kind":"organization","name":"August Capital VI, L.P.","position":2,"cik":"0001552637","reported_name":"August Capital VI, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":151323,"kind":"organization","name":"August Capital VI Special Opportunities, L.P.","position":3,"cik":"0001552636","reported_name":"August Capital VI Special Opportunities, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124190,"kind":"person","name":"Hartenbaum Howard","position":4,"cik":"0001547424","reported_name":"Hartenbaum Howard","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":112803,"kind":"person","name":"CARLBORG W ERIC","position":5,"cik":"0001191203","reported_name":"CARLBORG W ERIC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2019-05-21T19:20:40.000Z","date":"2019-05-21","kind":"exercise","acquired":false,"shares":8748395,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series B Convertible Preferred Stock has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series B Convertible Preferred Stock has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis immediately upon the closing of the Issuer's initial public offering. The Series B Convertible Preferred Stock has no expiration date."},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F2","text":"Each share of Class B Common Stock will convert automatically into Class A Common Stock upon any transfer except certain \"Permitted Transfers\" described in the Issuer's amended and restated certificate of incorporation. Following the closing of the initial public offering, all outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) the first trading day falling nine months after the date on which the shares of Class B Common Stock represent less than 10% of the aggregate number of outstanding shares of Class A Common Stock and Class B Common Stock, (ii) the date specified by the vote of the holders of Class B Common Stock representing at least a majority of the outstanding shares of Class B Common Stock, or (iii) the first trading day falling ten years after the Effective Time as defined in the Issuer's amended and restated certificate of incorporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These shares are held directly by August Capital VI, L.P. (\"August VI\"). August Capital Management VI, L.L.C. (\"ACM VI\") is the general partner of August VI and may be deemed to have sole voting and investment power over the shares held by August VI. David M. Hornik, a member of the Issuer's Board of Directors, Howard Hartenbaum, and W. Eric Carlborg are members of ACM VI, and may be deemed to have shared voting and investment power over the shares held by August VI. Each such person and entity disclaims the existence of a \"group\" and disclaims beneficial ownership of any securities, except to the extent of such person's or entity's pecuniary interest in such securities."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":8748395},"source":{"system":"sec-edgar","filing":"0001209191-19-031849","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1191203/000120919119031849/doc4.xml","form_type":"4"}}]}