DSP

SEC source: 0001843104-24-000006 · wk-form4_1710292282.xml · nonDerivative · entry 1

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 329,213

F1 · shares: Represents shares repurchased by the Issuer from the Reporting Person in the amount of estimated taxes to be paid by the Reporting Person in connection with the vesting of 156,757 restricted stock units on March 10, 2024.

SEC source: 0001843103-24-000006 · wk-form4_1710292230.xml · nonDerivative · entry 1

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 329,213

F1 · shares: Represents shares repurchased by the Issuer from the Reporting Person in the amount of estimated taxes to be paid by the Reporting Person in connection with the vesting of 156,757 restricted stock units on March 10, 2024.

SEC source: 0001628280-23-041367 · wk-form4_1702423565.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 517,535

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,871 restricted stock units on December 10, 2023. These shares were not issued to or sold by the Reporting Person.

SEC source: 0001209191-23-049050 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 534,316

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on September 10, 2023. These shares were not issued to or sold by the Reporting Person.

SEC source: 0001209191-23-037300 · doc4.xml · nonDerivative · entry 2

VALDES MAX O · CIK 0001219307 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,913

F1 · shares: Represents shares sold by the Reporting Person to cover estimated taxes to be paid by the Reporting Person in connection with the vesting of 24,510 restricted stock units on June 2, 2023. These shares were sold in the open market.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at various prices ranging from $4.41 to $4.54, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-037300 · doc4.xml · nonDerivative · entry 1

VALDES MAX O · CIK 0001219307 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,060

F1 · shares: Represents shares sold by the Reporting Person to cover estimated taxes to be paid by the Reporting Person in connection with the vesting of 24,510 restricted stock units on June 2, 2023. These shares were sold in the open market.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at various prices ranging from $4.25 to $4.38, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

SEC source: 0001209191-23-036243 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 551,100

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on June 10, 2023. These shares were not issued to or sold by the Reporting Person.

SEC source: 0001209191-23-034746 · doc4.xml · nonDerivative · entry 1

Williams Elizabeth Goodman · CIK 0001764054 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,457

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2024 Annual Meeting of Stockholders (or the date immediately prior to the 2024 Annual Meeting if the Reporting Person's service as a director ends at the 2024 Annual Meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-23-034744 · doc4.xml · nonDerivative · entry 1

VALDES MAX O · CIK 0001219307 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,207

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2024 Annual Meeting of Stockholders (or the date immediately prior to the 2024 Annual Meeting if the Reporting Person's service as a director ends at the 2024 Annual Meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-23-034743 · doc4.xml · nonDerivative · entry 1

Yang Vivian · CIK 0001615037 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,492

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2024 Annual Meeting of Stockholders (or the date immediately prior to the 2024 Annual Meeting if the Reporting Person's service as a director ends at the 2024 Annual Meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-23-018755 · doc4.xml · nonDerivative · entry 2

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 567,884

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 73,542 restricted stock units on March 10, 2023. These shares were neither issued to nor sold by the Reporting Person.

SEC source: 0001209191-23-018762 · doc4.xml · nonDerivative · entry 2

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 411,747

F2 · shares: Represents shares repurchased by the Issuer from the Reporting Person in the amount of estimated taxes to be paid by the Reporting Person in connection with the vesting of 66,666 restricted stock units on March 10, 2023.

SEC source: 0001209191-23-018758 · doc4.xml · nonDerivative · entry 2

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 411,747

F2 · shares: Represents shares repurchased by the Issuer from the Reporting Person in the amount of estimated taxes to be paid by the Reporting Person in connection with the vesting of 66,666 restricted stock units on March 10, 2023.

SEC source: 0001209191-23-018755 · doc4.xml · derivative · entry 3

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 156,406

Underlying: Class A Common Stock · 156,406 shares

Expires 2033-03-07

F3 · derivative.exercise_date: The shares subject to the option have a two-year vesting schedule. 50% vest on the first anniversary of March 10, 2023. The balance will vest 12.5% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-23-018755 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 606,591

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units ("RSUs"). The award vests in equal annual installments over two (2) years, with 50% of the RSUs vesting on each of the first two (2) anniversaries of March 10, 2023, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001209191-23-018762 · doc4.xml · derivative · entry 3

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 381,632

Underlying: Class A Common Stock · 381,632 shares

Expires 2033-03-07

F3 · derivative.exercise_date: The shares subject to the option have a two-year vesting schedule. 50% vest on the first anniversary of March 10, 2023. The balance will vest 12.5% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-23-018762 · doc4.xml · nonDerivative · entry 1

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446,847

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units ("RSUs"). The award vests in equal annual installments over two (2) years, with 50% of the RSUs vesting on each of the first two (2) anniversaries of March 10, 2023, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001209191-23-018758 · doc4.xml · derivative · entry 3

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 381,632

Underlying: Class A Common Stock · 381,632 shares

Expires 2033-03-07

F3 · derivative.exercise_date: The shares subject to the option have a two-year vesting schedule. 50% vest on the first anniversary of March 10, 2023. The balance will vest 12.5% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-23-018758 · doc4.xml · nonDerivative · entry 1

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446,847

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units ("RSUs"). The award vests in equal annual installments over two (2) years, with 50% of the RSUs vesting on each of the first two (2) anniversaries of March 10, 2023, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001209191-22-060739 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 493,978

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on December 10, 2022. These shares were neither issued to nor sold by the Reporting Person.

SEC source: 0001209191-22-049755 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 510,762

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on September 10, 2022. These shares were neither issued to nor sold by the Reporting Person.

SEC source: 0001209191-22-047566 · doc4.xml · nonDerivative · entry 1

Williams Elizabeth Goodman · CIK 0001764054 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,562

F1 · shares: Grant of restricted stock units that vested immediately upon grant. Each restricted stock unit represents the right to receive one share of the Issuer's Class A Common Stock.

F2 · balance_after: Includes restricted stock unit award for 6,000 shares of Class A Common Stock granted on February 9, 2021, that were scheduled to vest on February 9, 2024. On August 23, 2022, the Issuer's Compensation Committee amended the vesting schedule such that (i) one-third of the restricted stock units vested on August 23, 2022 and (ii) one-third of the restricted stock units will vest on each of February 9, 2023 and February 9, 2024.

SEC source: 0001209191-22-047565 · doc4.xml · nonDerivative · entry 1

VALDES MAX O · CIK 0001219307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,312

F1 · shares: Grant of restricted stock units that vested immediately upon grant. Each restricted stock unit represents the right to receive one share of the Issuer's Class A Common Stock.

F2 · balance_after: Includes restricted stock unit award for 6,000 shares of Class A Common Stock granted on February 9, 2021, that were scheduled to vest on February 9, 2024. On August 23, 2022, the Issuer's Compensation Committee amended the vesting schedule such that (i) one-third of the restricted stock units vested on August 23, 2022 and (ii) one-third of the restricted stock units will vest on each of February 9, 2023 and February 9, 2024.

SEC source: 0001209191-22-047567 · doc4.xml · nonDerivative · entry 1

Yang Vivian · CIK 0001615037 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,597

F1 · shares: Grant of restricted stock units that vested immediately upon grant. Each restricted stock unit represents the right to receive one share of the Issuer's Class A Common Stock.

F2 · balance_after: Includes restricted stock unit award for 15,000 shares of Class A Common Stock granted on December 7, 2021, that were scheduled to vest on December 7, 2024. On August 23, 2022, the Issuer's Compensation Committee amended the vesting schedule such that the restricted stock units will vest in three equal annual installments, beginning on December 7, 2022.

SEC source: 0001209191-22-036813 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 527,546

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on June 10, 2022. These shares were not issued to or sold by the Reporting Person.

SEC source: 0001209191-22-034718 · doc4.xml · nonDerivative · entry 1

Williams Elizabeth Goodman · CIK 0001764054 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,510

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2023 Annual Meeting of Stockholders (or the date immediately prior to the 2023 Annual Meeting if service as a director ends at the 2023 Annual Meeting due to the director's failure to be re-elected or the director not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-22-034716 · doc4.xml · nonDerivative · entry 1

VALDES MAX O · CIK 0001219307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,260

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2023 Annual Meeting of Stockholders (or the date immediately prior to the 2023 Annual Meeting if service as a director ends at the 2023 Annual Meeting due to the director's failure to be re-elected or the director not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-22-034715 · doc4.xml · nonDerivative · entry 1

Yang Vivian · CIK 0001615037 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,085

F1 · shares: Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2023 Annual Meeting of Stockholders (or the date immediately prior to the 2023 Annual Meeting if service as a director ends at the 2023 Annual Meeting due to the director's failure to be re-elected or the director not standing for re-election); or (ii) the one-year anniversary measured from the date of grant, subject to the Reporting Person's continuous service through such vesting date. Each restricted stock unit represents the right to receive one share of the Issuer's Class A common stock.

SEC source: 0001209191-22-019847 · doc4.xml · derivative · entry 3

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 295,508

Underlying: Class A Common Stock · 295,508 shares

Expires 2032-03-15

F4 · derivative.exercise_date: The shares subject to the option have a four-year vesting schedule. 25% vest on the first anniversary of March 10, 2022. The balance will vest 6.25% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019847 · doc4.xml · nonDerivative · entry 2

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 544,330

F3 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The restricted stock units have a four-year vesting schedule. 25% vest on the yearly anniversary of March 10, 2022 until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019854 · doc4.xml · derivative · entry 2

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 472,813

Underlying: Class A Common Stock · 472,813 shares

Expires 2032-03-15

F2 · derivative.exercise_date: The shares subject to the option have a four-year vesting schedule. 25% vest on the first anniversary of March 10, 2022. The balance will vest 6.25% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019854 · doc4.xml · nonDerivative · entry 1

Vanderhook Timothy · CIK 0001843103 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 266,667

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The restricted stock units have a four-year vesting schedule. 25% vest on the yearly anniversary of March 10, 2022 until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019850 · doc4.xml · derivative · entry 2

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 472,813

Underlying: Class A Common Stock · 472,813 shares

Expires 2032-03-15

F2 · derivative.exercise_date: The shares subject to the option have a four-year vesting schedule. 25% vest on the first anniversary of March 10, 2022. The balance will vest 6.25% quarterly thereafter until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019850 · doc4.xml · nonDerivative · entry 1

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 266,667

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The restricted stock units have a four-year vesting schedule. 25% vest on the yearly anniversary of March 10, 2022 until fully vested, subject to the Reporting Person's continued service to the Issuer through the applicable vesting dates.

SEC source: 0001209191-22-019847 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 377,663

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of 31,876 restricted stock units on March 10, 2022. These sales are mandated by the Issuer's election under its equity incentive plan to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. These shares were sold in the open market.

F2 · price: The price reported in Column 4 is a weighted average price calculated by the broker. These shares were sold as part of a block trade in multiple transactions at various prices with a weighted average price of $6.08. The Reporting Person has provided to the Issuer, and undertakes to provide any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote with regard to the block trade.

SEC source: 0000899243-22-002048 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 399,291

F1 · date: This Form 4 is being filed late due to administrative error.

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 31,876 restricted stock units on December 10, 2021. These shares were not issued to or sold by the Reporting Person.

SEC source: 0000899243-21-047584 · doc4.xml · nonDerivative · entry 2

Yang Vivian · CIK 0001615037 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,575

F2 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The award vests in full upon the first annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0000899243-21-047584 · doc4.xml · nonDerivative · entry 1

Yang Vivian · CIK 0001615037 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The award vests in full on December 7, 2024, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0000899243-21-036212 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 416,075

F1 · shares: Represents the sale of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of 31,876 restricted stock units on September 10, 2021. These sales are mandated by the Issuer's election under its equity incentive plan to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

SEC source: 0000899243-21-032519 · doc4.xml · nonDerivative · entry 1

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 434,479

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the release of 143,438 vested restricted stock units on August 8, 2021.

SEC source: 0000899243-21-005925 · doc4.xml · derivative · entry 6

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viant Technology Equity Plan LLC

Disclosed balance after: 474,356

Underlying: Class A Common Stock · 15,000 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.

F3 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

F5 · derivative.exercise_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

F5 · derivative.expiration_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

SEC source: 0000899243-21-005925 · doc4.xml · nonDerivative · entry 4

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viant Technology Equity Plan LLC

Disclosed balance after: 510,000

F4 · shares: In connection with the Issuer's initial public offering, 15,000 shares of Class A Common Stock beneficially owned by the Reporting Person were sold to the underwriters.

SEC source: 0000899243-21-005925 · doc4.xml · nonDerivative · entry 3

MADDEN LARRY · CIK 0001284309 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Viant Technology Equity Plan LLC

Disclosed balance after: 525,000

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.

F3 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

SEC source: 0000899243-21-006309 · doc4.xml · derivative · entry 8

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Four Brothers 2 LLC

Disclosed balance after: 9,483,701

Underlying: Class A Common Stock · 303,411 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 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

F5 · derivative.exercise_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

F5 · derivative.expiration_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

F4 · balance_after: The Reporting Person holds a one-third interest in Four Brothers 2 LLC. While no individual has voting or investment control over the shares of Class B Common Stock or Class B Units held by Four Brothers 2 LLC, the Reporting Person may be deemed to have an indirect pecuniary interest in 9,483,701 shares of Class B Common Stock and 9,483,701 Class B Units held by Four Brothers 2 LLC.

SEC source: 0000899243-21-006309 · doc4.xml · derivative · entry 7

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,833,774

Underlying: Class A Common Stock · 250,625 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 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

F5 · derivative.exercise_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

F5 · derivative.expiration_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

SEC source: 0000899243-21-006309 · doc4.xml · nonDerivative · entry 4

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Four Brothers 2 LLC

Disclosed balance after: 0

F3 · shares: In connection with the Issuer's initial public offering, 303,411 shares of Class A Common Stock beneficially owned by the Reporting Person were sold to the underwriters.

SEC source: 0000899243-21-006309 · doc4.xml · nonDerivative · entry 3

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Four Brothers 2 LLC

Disclosed balance after: 303,411

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 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

SEC source: 0000899243-21-006309 · doc4.xml · nonDerivative · entry 2

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: In connection with the Issuer's initial public offering, the Reporting Person sold 250,625 shares of Class A Common Stock to the underwriters.

SEC source: 0000899243-21-006309 · doc4.xml · nonDerivative · entry 1

Vanderhook Christopher · CIK 0001843104 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,625

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 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

SEC source: 0000899243-21-006303 · doc4.xml · derivative · entry 4

Four Brothers 2 LLC · CIK 0001844767 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,451,103

Underlying: Class A Common Stock · 910,232 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 · shares: Reflects the exchange of Class B Units into shares of Class A Common Stock of the Issuer. Upon the exchange, the corresponding shares of Class B Common Stock were automatically cancelled.

F3 · derivative.exercise_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.

F3 · derivative.expiration_date: The Class B Units of Viant Technology LLC are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.