FSLY

SEC source: 0001517413-25-000278 · wk-form4_1760561711.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,401,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 20,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.13 to $8.37. 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 (3) to this Form 4.

SEC source: 0001517413-25-000274 · wk-form4_1759957830.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,421,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 20,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.56 to $9.04. 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 (3) to this Form 4.

SEC source: 0001517413-25-000272 · wk-form4_1759352952.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,441,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 20,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.37 to $8.98. 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 (3) to this Form 4.

SEC source: 0001517413-25-000270 · wk-form4_1758749217.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,461,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 20,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.43 to $8.78. 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 (3) to this Form 4.

SEC source: 0001517413-25-000268 · wk-form4_1758314462.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,088,551

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.

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

SEC source: 0001517413-25-000265 · wk-form4_1758141992.xml · nonDerivative · entry 2

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,130,723

F3 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.62 to $8.63, inclusive.

SEC source: 0001517413-25-000265 · wk-form4_1758141992.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,165,185

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.

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

SEC source: 0001517413-25-000266 · wk-form4_1758142000.xml · nonDerivative · entry 2

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,481,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F4 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 2,938 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.89 to $9.06, inclusive.

SEC source: 0001517413-25-000266 · wk-form4_1758142000.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,484,214

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · shares: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 17,062 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.89 to $8.87. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) and (5) to this Form 4.

SEC source: 0001517413-25-000260 · wk-form4_1757538559.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,501,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.30 to $7.53. 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.

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

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 670,691

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

SEC source: 0001517413-25-000256 · wk-form4_1757106794.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,344,116

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

SEC source: 0001517413-25-000257 · wk-form4_1757106800.xml · nonDerivative · entry 1

WONG RICHARD · CIK 0002082904 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,130,323

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. 100% of the RSUs are initially subject to vesting. One-forth (25%) of the total RSUs will vest on August 15, 2026 and the remainder will vest in quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), provided in each case that the grantee is providing Continuous Service (as defined in the Inducement Plan) to the Company. Provided that if a quarterly vesting date occurs on any day that is not a trading day, the quarterly vesting date shall instead be the next trading day.

SEC source: 0001517413-25-000252 · wk-form4_1757022985.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,521,276

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.27 to $7.50. 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.

SEC source: 0001517413-25-000250 · wk-form4_1756933563.xml · nonDerivative · entry 1

Daniels Richard Devon · CIK 0001830164 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,652

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.58 to $7.67. 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 (1) to this Form 4.

SEC source: 0001517413-25-000244 · wk-form4_1756500999.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,579,414

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

SEC source: 0001517413-25-000234 · wk-form4_1755726416.xml · nonDerivative · entry 2

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,580,263

F3 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2024.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.13 to $7.53, inclusive.

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

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 673,645

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.84 to $6.88. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.

SEC source: 0001517413-25-000236 · wk-form4_1755726455.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,344,735

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.84 to $6.88. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.

SEC source: 0001517413-25-000234 · wk-form4_1755726416.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,599,616

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.84 to $6.88. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (4) to this Form 4.

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

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 688,980

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. 100% of the RSUs are initially subject to vesting. One-sixteenth (6.25%) of the total RSUs will vest on August 15, 2025 and the remainder will vest in 15 equal quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), provided in each case that the grantee is providing Continuous Service (as defined in the 2019 Plan) to the Company. Provided that if a quarterly vesting date occurs on any day that is not a trading day, the quarterly vesting date shall instead be the next trading day.

SEC source: 0001517413-25-000226 · wk-form4_1755119984.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · President, Go to Market

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,353,811

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. 100% of the RSUs are initially subject to vesting. One-sixteenth (6.25%) of the total RSUs will vest on August 15, 2025 and the remainder will vest in 15 equal quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), in each case subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

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

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 411,203

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

SEC source: 0001517413-25-000191 · wk-form4_1752783402.xml · nonDerivative · entry 1

Compton Charles Lacey III · CIK 0002074428 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 413,386

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

SEC source: 0001517413-25-000189 · wk-form4_1752783237.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 627,590

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

SEC source: 0001517413-25-000180 · wk-form4_1750453260.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,287,145

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.80 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.

SEC source: 0001517413-25-000172 · wk-form4_1749759805.xml · nonDerivative · entry 1

ALVAREZ AIDA · CIK 0001268885 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,066

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000170 · wk-form4_1749759722.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,536

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000169 · wk-form4_1749759635.xml · nonDerivative · entry 1

Meyers Charles J · CIK 0001502558 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,174

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000171 · wk-form4_1749759761.xml · nonDerivative · entry 1

Hornik David · CIK 0001547378 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 259,830

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001870529-25-000007 · wk-form4_1749759672.xml · nonDerivative · entry 1

Loop Paula · CIK 0001870529 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,174

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000168 · wk-form4_1749759574.xml · nonDerivative · entry 1

Smith Vanessa C. · CIK 0001890818 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,666

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000167 · wk-form4_1749759509.xml · nonDerivative · entry 1

Daniels Richard Devon · CIK 0001830164 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,900

F1 · shares: The shares are represented by restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest quarterly over one year following the date of grant and will be fully vested on the earlier of the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to the next annual meeting of the Issuer's stockholders if the reporting person's service as a director ends at such meeting due to the failure to be re-elected or not standing for re-election) and the one year anniversary measured from the date of grant, each subject to continued service as a director of the Issuer through each applicable vesting date.

SEC source: 0001517413-25-000151 · wk-form4_1749243442.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,626,034

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2024.

SEC source: 0001517413-25-000149 · wk-form4_1749070799.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 635,053

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 5, 2024.

F2 · shares: The shares were sold by the Ronald Kisling Living Trust, to which the reporting person contributed 12,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.19 to $7.50. 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 (3) to this Form 4.

SEC source: 0001517413-25-000144 · wk-form4_1748640790.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 647,053

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

SEC source: 0001517413-25-000146 · wk-form4_1748641003.xml · nonDerivative · entry 1

Nightingale Todd · CIK 0001944844 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,901,200

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

SEC source: 0001517413-25-000142 · wk-form4_1748640593.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,627,406

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

SEC source: 0001517413-25-000140 · wk-form4_1748466789.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 647,599

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.19 to $7.23. 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.

SEC source: 0001517413-25-000139 · wk-form4_1748466777.xml · nonDerivative · entry 1

Nightingale Todd · CIK 0001944844 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,904,388

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.19 to $7.24. 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.

SEC source: 0001517413-25-000133 · wk-form4_1747950234.xml · nonDerivative · entry 1

Nightingale Todd · CIK 0001944844 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,916,935

F1 · kind: Shares acquired under the Fastly, Inc. 2019 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c).

SEC source: 0001517413-25-000124 · wk-form4_1747773087.xml · nonDerivative · entry 2

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,627,964

F2 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.66 to $7.80. 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 (3) to this Form 4.

SEC source: 0001517413-25-000125 · wk-form4_1747773098.xml · nonDerivative · entry 1

Lovett Scott R. · CIK 0002024441 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,414,753

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

SEC source: 0001517413-25-000126 · wk-form4_1747773111.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 649,721

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

SEC source: 0001517413-25-000127 · wk-form4_1747773128.xml · nonDerivative · entry 1

Nightingale Todd · CIK 0001944844 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,915,080

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

SEC source: 0001517413-25-000124 · wk-form4_1747773087.xml · nonDerivative · entry 1

Bergman Artur · CIK 0001769490 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,650,903

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

SEC source: 0001517413-25-000099 · wk-form4_1744924734.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 665,693

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

SEC source: 0001517413-25-000095 · wk-form4_1743628815.xml · nonDerivative · entry 1

KISLING RONALD W · CIK 0001228622 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 671,035

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 5, 2024.

F2 · shares: The shares were sold by the Ronald Kisling Living Trust, to which the reporting person contributed 12,000 shares of common stock of the Issuer in a transaction that resulted in a change in the form of beneficial ownership from direct to indirect.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.19 to $6.42. 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 (3) to this Form 4.

SEC source: 0001517413-25-000093 · wk-form4_1743027336.xml · derivative · entry 3

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 38,424 shares

Expires 2028-07-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Fully vested

SEC source: 0001517413-25-000093 · wk-form4_1743027336.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,630

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.