Shirk Brett

SEC source: 0001517413-23-000361 · wk-form4_1701730333.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 264,501

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 $18.21 to $18.33. 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 this footnote 2 to this Form 4.

SEC source: 0001517413-23-000346 · wk-form4_1700691696.xml · nonDerivative · entry 3

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 265,076

F4 · kind: Shares acquired under the Fastly, Inc. 2019 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c).

SEC source: 0001517413-23-000346 · wk-form4_1700691696.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 264,779

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.78 to $18.92, inclusive.

SEC source: 0001517413-23-000346 · wk-form4_1700691696.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 267,581

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.78 to $18.77, 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 footnote (2) and (3) to this Form 4.

SEC source: 0001517413-23-000340 · wk-form4_1700259935.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 271,779

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

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.12 to $16.32. 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 footnote (3) to this Form 4.

SEC source: 0001517413-23-000340 · wk-form4_1700259935.xml · derivative · entry 3

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Reflects the conversion of previously granted performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 50,000 of the 200,000 PRSUs vested based on the achievement of a performance condition (Issuer's Class A Common Stock achieving a sixty-day consecutive trailing average closing price of $17.25 per share).

F4 · derivative.exercise_date: One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

F5 · derivative.exercise_date: one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

F4 · derivative.expiration_date: One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

F5 · derivative.expiration_date: one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

F6 · balance_after: Represents the maximum number of shares remaining that may be issued pursuant to the PRSUs.

SEC source: 0001517413-23-000340 · wk-form4_1700259935.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 303,261

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.

F1 · price: Reflects the conversion of previously granted performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 50,000 of the 200,000 PRSUs vested based on the achievement of a performance condition (Issuer's Class A Common Stock achieving a sixty-day consecutive trailing average closing price of $17.25 per share).

SEC source: 0001517413-23-000287 · wk-form4_1698181430.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 253,261

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.24 to $14.89, 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 footnote (2) to this Form 4.

SEC source: 0001517413-23-000273 · wk-form4_1695420284.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 260,261

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.35 to $20.19, 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 footnote (2) to this Form 4.

SEC source: 0001517413-23-000266 · wk-form4_1695244537.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 265,951

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 $20.36 to $20.40. 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 this footnote 2 to this Form 4.

SEC source: 0001517413-23-000257 · wk-form4_1693516845.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 270,657

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 $22.07 to $22.28. 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 this footnote 2 to this Form 4.

SEC source: 0001517413-23-000246 · wk-form4_1692825290.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 271,242

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.48 to $19.51, inclusive.

SEC source: 0001517413-23-000246 · wk-form4_1692825290.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 271,442

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.48 to $19.24, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.

SEC source: 0001517413-23-000240 · wk-form4_1692394890.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 278,242

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 $18.33 to $18.51. 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 this footnote 2 to this Form 4.

SEC source: 0001517413-23-000203 · wk-form4_1690234357.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 288,267

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.60 to $18.98, inclusive.

SEC source: 0001517413-23-000203 · wk-form4_1690234357.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,267

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.59 to $18.58, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.

SEC source: 0001517413-23-000187 · wk-form4_1687468275.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,267

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.15 to $17.18, inclusive.

SEC source: 0001517413-23-000187 · wk-form4_1687468275.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,667

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.14 to $17.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.

SEC source: 0001517413-23-000183 · wk-form4_1687381876.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 302,267

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

SEC source: 0001517413-23-000142 · wk-form4_1685740720.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 306,965

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of previously granted performance-based 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 $15.67 to $15.90. 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 this footnote 2 to this Form 4.

SEC source: 0001517413-23-000119 · wf-form4_168496296255834.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 307,550

F2 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.93 to $13.64, 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 footnote (3) to this Form 4.

SEC source: 0001517413-23-000119 · wf-form4_168496296255834.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 314,550

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

SEC source: 0001517413-23-000114 · wf-form4_168444411710656.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 312,050

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

SEC source: 0001517413-23-000082 · wf-form4_168237245027807.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 320,833

F1 · kind: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 28, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.29 to $17.01, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0001517413-23-000058 · wf-form4_168030376756803.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 325,184

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-twelfth (8.33%) of the total RSUs will vest on May 15, 2023 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.

SEC source: 0001517413-23-000053 · wf-form4_167951924736729.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 216,235

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.06 to $15.54, 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 footnote (2) to this Form 4.

SEC source: 0001517413-23-000049 · wf-form4_167935294599239.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 223,235

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

SEC source: 0001517413-23-000042 · wf-form4_167779611413343.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 226,142

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

SEC source: 0001517413-23-000042 · wf-form4_167779611413343.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 227,552

F1 · shares: Represents the shares subject to performance-based restricted stock unit awards (PRSUs) earned based on the achievement of pre-established performance goals during the Issuer's fiscal year 2022. 33% of the number of PRSUs vested on the Transaction Date, and 8.375% of the PRSUs will vest in quarterly installments thereafter on May 28, August 28, November 28, and February 28, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

SEC source: 0001517413-23-000022 · wf-form4_167719015958052.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,097

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

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.18 to $15.76, inclusive.

SEC source: 0001517413-23-000022 · wf-form4_167719015958052.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,797

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.08 to $14.89, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.

SEC source: 0001517413-23-000017 · wf-form4_167701834230718.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 217,097

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

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.48 to $16.25, inclusive.

SEC source: 0001517413-23-000017 · wf-form4_167701834230718.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,097

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

SEC source: 0001517413-22-000173 · wf-form4_167157470016288.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,040

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001517413-22-000173 · wf-form4_167157470016288.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 235,040

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.82 to $8.84, 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 footnote 2 to this Form 4.

SEC source: 0001517413-22-000171 · wf-form4_166915505416164.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 239,746

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

SEC source: 0001517413-22-000167 · wf-form4_166881127555870.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 239,745

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001517413-22-000167 · wf-form4_166881127555870.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 246,745

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.30 to $10.44, 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 ranges set forth in footnote (2) to this Form 4.

SEC source: 0001517413-22-000150 · wf-form4_166621419785053.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,246

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.73 to $8.24. 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 ranges set forth in footnotes to this Form 4.

SEC source: 0001517413-22-000147 · wf-form4_166388161189923.xml · derivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 200,000 shares

Expires not disclosed

F1 · derivative.exercise_price: The shares are represented by performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

F2 · derivative.exercise_price: one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date);one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

F1 · derivative.exercise_date: The shares are represented by performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

F2 · derivative.exercise_date: one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date);one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

F1 · derivative.expiration_date: The shares are represented by performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

F2 · derivative.expiration_date: one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date);one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

SEC source: 0001517413-22-000144 · wf-form4_166362716662886.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,246

F3 · shares: 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 $9.33 to $9.52, inclusive.

SEC source: 0001517413-22-000144 · wf-form4_166362716662886.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 263,244

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.61 to $10.21. 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: 0001517413-22-000128 · wf-form4_166085670322763.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,244

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.13 to $11.61, inclusive.

SEC source: 0001517413-22-000128 · wf-form4_166085670322763.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,244

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 $11.77 to $11.97. 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: 0001517413-22-000103 · wf-form4_165584581772506.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,223

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

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.53 to $10.55, inclusive.

SEC source: 0001517413-22-000072 · wf-form4_165342917168666.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,231

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

SEC source: 0001517413-22-000063 · wf-form4_165291039890826.xml · nonDerivative · entry 2

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306,625

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

SEC source: 0001517413-22-000063 · wf-form4_165291039890826.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,508

F1 · kind: 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-eighth (12.5%) of the total RSUs will vest on August 15, 2022 and the remainder will vest in 7 equal quarterly installments (November, February, May and August) of one-eighth thereafter (12.5% 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: 0001517413-22-000043 · wf-form4_164789733871469.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 207,508

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

SEC source: 0001517413-22-000012 · wf-form4_164497023778290.xml · nonDerivative · entry 1

Shirk Brett · CIK 0001642259 · Executive Vice President, CRO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,396

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 May 15, 2022 and the remainder will vest in 15 equal quarterly installments (August, November, February and May) 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.