DUOL

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 7

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,610

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $205.67 to $206.58, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 6

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,971

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $204.39 to $205.31, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 5

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,671

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $203.39 to $204.27, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 4

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,371

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $202.21 to $202.92, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 3

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,871

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $201.21 to $202.17, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 2

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,970

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 30, 2023.

F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $200.20 to $201.19, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000062 · wk-form4_1709856716.xml · nonDerivative · entry 1

von Ahn Luis · CIK 0001829259 · Director · President & CEO, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,600

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: 0001562088-24-000054 · wk-form4_1709588053.xml · derivative · entry 9

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 3,034,917

Underlying: Class A Common Stock · 10,000 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 7

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F8 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $237.02 to $237.50, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 6

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,100

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $236.01 to $236.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 5

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 2,988

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $235.00 to $235.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 4

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 5,988

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $234.00 to $234.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 3

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 8,437

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $232.89 to $233.75, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 2

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 9,400

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $231.47 to $232.39, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000054 · wk-form4_1709588053.xml · nonDerivative · entry 1

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 10,000

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 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · derivative · entry 8

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,449

Underlying: Class A Common Stock · 8,000 shares

Expires 2030-03-10

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.

F8 · derivative.exercise_date: 25% of the shares subject to the option vest on the first anniversary measured from February 24, 2020 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 7

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,523

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $237.05 to $237.50, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 6

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 65,538

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $235.73 to $236.65, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 5

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,685

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $234.73 to $235.72, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 4

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,726

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $233.59 to $234.58, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 3

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,623

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $232.53 to $233.43, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 2

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 72,123

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $231.45 to $232.41, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000056 · wk-form4_1709592521.xml · nonDerivative · entry 1

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 72,523

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: 0001562088-24-000036 · wk-form4_1708637234.xml · nonDerivative · entry 1

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,523

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $179.02 to $179.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000033 · wk-form4_1708466465.xml · nonDerivative · entry 1

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,221

F1 · kind: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.

SEC source: 0001562088-24-000031 · wk-form4_1708463970.xml · nonDerivative · entry 1

Meese Robert · CIK 0001869668 · Chief Business Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,516

F1 · kind: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.

SEC source: 0001562088-24-000034 · wk-form4_1708466673.xml · nonDerivative · entry 1

Chen Stephen C. · CIK 0001869758 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,045

F1 · kind: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.

SEC source: 0001562088-24-000032 · wk-form4_1708464030.xml · nonDerivative · entry 1

Glance Natalie · CIK 0001870350 · Chief Engineering Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,505

F1 · kind: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.

SEC source: 0001562088-24-000023 · wk-form4_1707772683.xml · derivative · entry 3

Chen Stephen C. · CIK 0001869758 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,334

Underlying: Class A Common Stock · 2,000 shares

Expires 2030-03-10

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: 25% of the shares subject to the option vest on the first anniversary measured from March 2, 2020 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001562088-24-000023 · wk-form4_1707772683.xml · nonDerivative · entry 2

Chen Stephen C. · CIK 0001869758 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,033

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 15, 2023.

SEC source: 0001562088-24-000023 · wk-form4_1707772683.xml · nonDerivative · entry 1

Chen Stephen C. · CIK 0001869758 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,033

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: 0001562088-24-000021 · wk-form4_1707426888.xml · nonDerivative · entry 4

Glance Natalie · CIK 0001870350 · Chief Engineering Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,188

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $183.08 to $183.52, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000021 · wk-form4_1707426888.xml · nonDerivative · entry 3

Glance Natalie · CIK 0001870350 · Chief Engineering Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,388

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $181.59 to $182.17, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000021 · wk-form4_1707426888.xml · nonDerivative · entry 2

Glance Natalie · CIK 0001870350 · Chief Engineering Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,489

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023.

F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $180.31 to $180.66, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000021 · wk-form4_1707426888.xml · nonDerivative · entry 1

Glance Natalie · CIK 0001870350 · Chief Engineering Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,689

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 5, 2023.

F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $178.56 to $179.55, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · derivative · entry 10

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 3,044,917

Underlying: Class A Common Stock · 10,000 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.

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 8

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F9 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $181.44 to $181.46, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 7

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 94

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F8 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $180.33 to $181.32, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 6

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,867

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $179.31 to $180.22, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 5

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 4,511

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $178.27 to $179.23, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 4

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 5,370

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $177.27 to $178.19, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 3

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 7,670

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $176.19 to $177.03, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 2

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 9,300

F2 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2023.

F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $175.13 to $175.97, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000019 · wk-form4_1707167810.xml · nonDerivative · entry 1

Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 10,000

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 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · derivative · entry 9

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 127,449

Underlying: Class A Common Stock · 8,000 shares

Expires 2030-03-10

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.

F9 · derivative.exercise_date: 25% of the shares subject to the option vest on the first anniversary measured from February 24, 2020 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · nonDerivative · entry 8

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,688

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F8 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $181.34 to $181.47, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · nonDerivative · entry 7

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,888

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $180.34 to $181.32, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · nonDerivative · entry 6

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,332

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $179.34 to $180.33, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · nonDerivative · entry 5

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,257

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $178.31 to $179.30, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001562088-24-000016 · wk-form4_1707167522.xml · nonDerivative · entry 4

Skaruppa Matthew · CIK 0001869669 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,857

F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 9, 2023.

F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $177.27 to $178.26, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.