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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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The prior Form 4 for the Reporting Person dated June 5, 2026 inadvertently reported 15,948 restricted stock units instead of 14,544, the correct amount actually granted. The current total number of securities beneficially owned following the reported transactions reflects the accurate number of shares held by the Reporting Person."}],"balance_after":29449,"source":{"system":"sec-edgar","filing":"0001828791-26-000046","document":"wk-form4_1781135976.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1219307/000182879126000046/wk-form4_1781135976.xml","form_type":"4"}},{"id":742896,"issuer":{"id":5081,"kind":"organization","name":"Viant Technology Inc.","symbol":"DSP"},"owners":[{"id":39608,"kind":"person","name":"VALDES MAX O","position":1,"cik":"0001219307","reported_name":"VALDES MAX O","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-06-10T23:59:39.000Z","date":"2026-06-08","kind":"sale","planned":false,"acquired":false,"shares":3300,"price":12.1,"value":39930.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The prior Form 4 for the Reporting Person dated June 5, 2026 inadvertently reported 15,948 restricted stock units instead of 14,544, the correct amount actually granted. 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These shares were sold in multiple transactions at prices ranging from $13.865 to $13.90. 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 in this footnote."}],"balance_after":26429,"source":{"system":"sec-edgar","filing":"0001628280-25-030284","document":"wk-form4_1749504939.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1219307/000162828025030284/wk-form4_1749504939.xml","form_type":"4"}},{"id":1117577,"issuer":{"id":5081,"kind":"organization","name":"Viant Technology Inc.","symbol":"DSP"},"owners":[{"id":39608,"kind":"person","name":"VALDES MAX O","position":1,"cik":"0001219307","reported_name":"VALDES MAX O","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-06-09T21:35:56.000Z","date":"2025-06-05","kind":"grant","planned":false,"acquired":true,"shares":12382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units that vest in full on the earlier of (i) the date of the Issuer's 2026 Annual Meeting of Stockholders (or the date immediately prior to the 2026 Annual Meeting if the Reporting Person's service as a director ends at the 2026 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. 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These shares were sold in multiple transactions at prices ranging from $20.46 to $20.60. The Reporting Person undertakes to provide Viant Technology Inc. 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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\nabove."}],"balance_after":69913,"source":{"system":"sec-edgar","filing":"0001209191-23-037300","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1219307/000120919123037300/doc4.xml","form_type":"4"}},{"id":1854042,"issuer":{"id":5081,"kind":"organization","name":"Viant Technology Inc.","symbol":"DSP"},"owners":[{"id":39608,"kind":"person","name":"VALDES MAX O","position":1,"cik":"0001219307","reported_name":"VALDES MAX O","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2023-06-15T20:05:28.000Z","date":"2023-06-13","kind":"sale","planned":false,"acquired":false,"shares":5147,"price":4.3,"value":22132.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":75060,"source":{"system":"sec-edgar","filing":"0001209191-23-037300","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1219307/000120919123037300/doc4.xml","form_type":"4"}},{"id":1864952,"issuer":{"id":5081,"kind":"organization","name":"Viant Technology Inc.","symbol":"DSP"},"owners":[{"id":39608,"kind":"person","name":"VALDES MAX O","position":1,"cik":"0001219307","reported_name":"VALDES MAX O","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2023-06-06T20:05:32.000Z","date":"2023-06-02","kind":"grant","planned":false,"acquired":true,"shares":32895,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units that vest in full on the earlier of (i) the date\nof 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.  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Each restricted stock unit represents the right to receive one share of the Issuer's Class A Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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,\n2024. 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