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Viant Technology Inc. planned insider sales

In the last twelve months insiders at Viant Technology Inc. filed 14 Form 144 notices of planned sales, 727,182 shares worth $8.6 million at the time of filing, from 5 sellers. The latest, filed 16 September 2026: Lawrence Madden (officer), 73,066 shares worth $903,826, planned for around 16 September 2026 through Goldman Sachs & Co. LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
16 September 2026Lawrence MaddenOfficer73,066$903,82616 September 2026None on Form 4 yetGoldman Sachs & Co. LLCAcquired Class B common shares from Issuer in private transaction; Class B common shares to be converted to Class A common shares in connection with any sales; Restricted Stock UnitsForm 144
6 July 2026Lawrence MaddenOfficer60,784$776,8206 July 2026No matching Form 4 saleGoldman Sachs & Co. LLCRestricted Stock UnitsForm 144
16 June 2026Capital V LLC10% Stockholder75,000$852,75016 June 2026No matching Form 4 saleGoldman Sachs & Co. LLCAcquired Class B common shares from Issuer in private transaction; Class B common shares to be converted to Class A common shares in connection with any salesForm 144
12 June 2026Timothy VanderhookOfficer, Director9,500$114,85512 June 202634,125 shares from 15 June 2026Morgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
12 June 2026Christopher VanderhookOfficer, Director9,500$114,85512 June 202634,125 shares from 15 June 2026Morgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
12 June 2026Lawrence MaddenOfficer26,370$318,81312 June 2026No matching Form 4 saleMorgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
9 June 2026Max O ValdesDirector3,386$40,5279 June 20266,686 shares from 8 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
1 April 2026Lawrence MaddenOfficer133,334$1.5 million1 April 2026No matching Form 4 saleGoldman Sachs & Co. LLCRestricted Stock UnitsForm 144
17 March 2026Capital V LLC10% Stockholder113,760$1.3 million17 March 2026No matching Form 4 saleGoldman Sachs & Co. LLCAcquired Class B common shares from Issuer in private transaction; Class B common shares to be converted to Class A common shares in connection with any salesForm 144
22 January 2026Lawrence MaddenOfficer76,917$980,69222 January 2026No matching Form 4 saleGoldman Sachs & Co. LLCRestricted Stock UnitsForm 144
17 December 2025Capital V LLC10% Stockholder112,500$1.3 million17 December 2025No matching Form 4 saleGoldman Sachs & Co. LLCAcquired Class B common shares from Issuer in private transaction; Class B common shares to be converted to Class A common shares in connection with any salesForm 144
15 December 2025Christopher VanderhookOfficer, Director9,500$111,24516 December 202546,182 shares from 17 December 2025Morgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
15 December 2025Timothy VanderhookOfficer, Director9,500$111,24516 December 202546,182 shares from 17 December 2025Morgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
15 December 2025Lawrence MaddenOfficer14,065$164,70116 December 2025No matching Form 4 saleMorgan Stanley Smith BarneyRestricted stock units awarded under incentive award planForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?