Harris Parker

SEC source: 0001127602-24-022191 · form4a.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,376

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $250.4600 to $251.3900 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-022191 · form4a.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,981

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: This amendment is being filed solely to correct an error to the price as previously reported. This amended report does not report any new transactions or otherwise modify the transaction details that were previously reported.

SEC source: 0001127602-24-021814 · form4.xml · derivative · entry 14

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,770

Underlying: Common Stock · 2,800 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F9 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 6

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,581

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F6 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $242.3700 to $242.9700 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 5

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,067

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $241.3300 to $242.2900 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,058

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $240.3300 to $241.3100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,079

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $239.3200 to $240.3000 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,187

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $238.1700 to $239.1100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021814 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,381

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-021236 · form4.xml · derivative · entry 14

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,570

Underlying: Common Stock · 4,200 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F9 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 6

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,581

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F6 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $259.4000 to $260.2100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 5

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,988

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $258.2604 to $258.9371 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,496

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $257.2600 to $258.2500 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,353

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $256.2596 to $257.2500 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,865

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $255.2555 to $256.1900 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-021236 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 121,781

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-020895 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,581

F1 · kind: Represents a sale of shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement of shares that were earned by the holder pursuant to a restricted stock unit award that vested based on the holder's continued employment through July 22, 2024.

SEC source: 0001127602-24-020970 · form4.xml · derivative · entry 12

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,770

Underlying: Common Stock · 4,200 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F7 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-020970 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,581

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $256.8100 to $257.0112 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020970 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,017

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $255.7800 to $256.7665 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020970 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,136

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $254.7800 to $255.7700 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020970 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 121,781

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-020895 · form4.xml · derivative · entry 10

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,639

Underlying: Common Stock · 1,785 shares

Expires 2027-04-22

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.

F4 · derivative.exercise_price: Restricted Stock Units convert to shares of common stock on a one-for-one basis.

F5 · derivative.exercise_date: These restricted stock units vest as to 25% of the original grant on April 22, 2024 and vest as to 1/16 of the original grant quarterly thereafter.

SEC source: 0001127602-24-020895 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,478

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.

SEC source: 0001127602-24-020601 · form4.xml · derivative · entry 13

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,970

Underlying: Common Stock · 4,200 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F8 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-020601 · form4.xml · nonDerivative · entry 5

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,693

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $256.3300 to $256.7100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020601 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,913

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $255.2900 to $256.2800 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020601 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,048

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $254.2200 to $255.2000 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020601 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,029

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $253.2231 to $254.2100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020601 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,893

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-020274 · form4.xml · derivative · entry 14

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,170

Underlying: Common Stock · 4,200 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F9 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 6

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,693

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F6 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $256.0900 to $256.5700 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 5

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,792

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $254.4800 to $255.4600 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,378

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $253.4683 to $254.1554 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,506

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $252.2200 to $253.1500 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,122

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $251.2200 to $252.2100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020274 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,893

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-020139 · form4.xml · derivative · entry 13

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,370

Underlying: Common Stock · 4,200 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F8 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-020139 · form4.xml · nonDerivative · entry 5

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,693

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $257.3000 to $257.7100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020139 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,836

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $256.3000 to $257.2700 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020139 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,336

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $255.3040 to $256.2900 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020139 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,190

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $254.2700 to $255.2029 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-020139 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,893

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-019428 · form4.xml · derivative · entry 10

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,570

Underlying: Common Stock · 5,600 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F5 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-019428 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,693

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $250.1200 to $250.3700 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-019428 · form4.xml · nonDerivative · entry 1

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 122,293

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

SEC source: 0001127602-24-019289 · form4.xml · derivative · entry 12

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 85,170

Underlying: Common Stock · 2,800 shares

Expires 2025-03-22

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 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F7 · derivative.exercise_date: Option is exercisable and vests over four years at the rate of 25% on March 22, 2019, the first anniversary of the holder's date of grant, with the balance vesting in equal monthly installments over the remaining 36 months.

SEC source: 0001127602-24-019289 · form4.xml · nonDerivative · entry 4

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,693

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $242.1251 to $242.8100 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-019289 · form4.xml · nonDerivative · entry 3

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,252

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $241.1200 to $242.1093 inclusive. The reporting person undertakes to provide 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 above.

SEC source: 0001127602-24-019289 · form4.xml · nonDerivative · entry 2

Harris Parker · CIK 0001294774 · Director · Co-Founder and CTO, Slack

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,518

F1 · kind: As indicated by the checkbox above, this transaction was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 26, 2023.

F2 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $240.0700 to $241.0600 inclusive. The reporting person undertakes to provide 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 above.