Notice of Proposed Sale · 144

Viant Technology Inc.

DSPNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Jul 6, 2026Accepted Jul 6, 2026, 6:19 PM EDTFiling CIK 1284309Accession 0001958244-26-000432

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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: Viant Technology Inc.
Issuer CIK: 0001828791
SEC file number: 001-40015
Phone: 1-949-861-8888
Person for whose account securities are to be sold: Lawrence Madden
Relationships to issuer: Officer
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
Common	60,784	776,819.52	20,021,706	07/06/2026	NASD	Goldman Sachs & Co. LLC

Broker / market maker — proposed row 1, entry 1

Name: Goldman Sachs & Co. LLC
Street: 200 West Street
City: New York
State / country code: NY
Postal code: 10282

Acquisition of securities to be sold

Acquisition of securities to be sold · 9 reported rows
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
Common	03/10/2026	Acquired as compensation -- Restricted Stock Units	Issuer	12,156	N	03/10/2026	Compensation
Common	03/10/2024	Acquired as compensation -- Restricted Stock Units	Issuer	2,052	N	03/10/2024	Compensation
Common	09/10/2025	Acquired as compensation -- Restricted Stock Units	Issuer	1,920	N	09/10/2025	Compensation
Common	09/10/2025	Acquired as compensation -- Restricted Stock Units	Issuer	4,237	N	09/10/2025	Compensation
Common	09/10/2025	Acquired as compensation -- Restricted Stock Units	Issuer	4,579	N	09/10/2025	Compensation
Common	06/10/2024	Acquired as compensation -- Restricted Stock Units	Issuer	7,371	N	06/10/2024	Compensation
Common	06/10/2024	Acquired as compensation -- Restricted Stock Units	Issuer	4,682	N	06/10/2024	Compensation
Common	03/10/2023	Acquired as compensation -- Restricted Stock Units	Issuer	7,561	N	03/10/2023	Compensation
Common	03/10/2023	Acquired as compensation -- Restricted Stock Units	Issuer	16,226	N	03/10/2023	Compensation

Sales reported in the preceding three months

Sales reported in the preceding three months · 8 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
Lawrence James Madden	Common	04/06/2026	7,297	82,517.39
Lawrence James Madden	Common	06/05/2026	18,663	228,483.64
Lawrence James Madden	Common	04/21/2026	13,283	144,929.48
Lawrence James Madden	Common	04/22/2026	13,263	142,427.38
Lawrence James Madden	Common	04/23/2026	12,782	129,881.74
Lawrence James Madden	Common	05/08/2026	18,538	219,671.59
Lawrence James Madden	Common	05/11/2026	17,297	197,568.06
Lawrence James Madden	Common	06/08/2026	14,670	177,479.13

Seller — prior-sale row 1, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 2, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 3, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 4, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 5, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 6, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 7, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Seller — prior-sale row 8, entry 1

Name: Lawrence James Madden
Street: 2722 Michelson Drive
Street (continued): Suite 100
City: Irvine
State / country code: CA
Postal code: 92612

Prior-sale reporting

Nothing to report for the preceding three months: N

Remarks

The sales of shares set forth herein are made in connection with a selling plan dated 12/15/2025 that is intended to comply with Rule 10b5-1(c).

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