Form4insider filings, from the source

Company · CIK 0001828791 · SIC 7370 — Services-Computer Programming, Data Processing, Etc. · Nasdaq

Viant Technology Inc. · DSP

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.9M · 7net −$1.9M
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 18, 8:37 pm EDTLarry MaddenChief Financial Officer31,644$12.33$390,019342,711−8.45%10b5-1
Sep 10, 2026 DForm 4 →Sep 14, 7:33 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner8,636$12.74$110,023285,244—
Sep 10, 2026 DForm 4 →Sep 14, 7:30 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner8,636$12.74$110,023200,244—
Sep 10, 2026 FForm 4 →Sep 14, 7:27 pm EDTLarry MaddenChief Financial Officer24,016$12.74$305,964374,355—
Aug 11, 2026 SForm 4 →Aug 13, 6:25 pm EDTLarry MaddenChief Financial Officer27,451$13.06$358,514398,371−6.45%10b5-1
Aug 10, 2026 AForm 4 →Aug 12, 7:15 pm EDTCraig Justin AbrahamsDirector39,109——39,109—
Jul 23, 2026 SForm 4 →Jul 27, 7:23 pm EDTLarry MaddenChief Financial Officer2,814$10.69$30,070425,822−0.66%10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500$11.01$137,6440−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner25,000——9,069,775—10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500$11.01$137,6440−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner25,000——9,069,775—10b5-1
Jul 21, 2026 SForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner37,500$11.01$412,9330−100%10b5-1
Jul 21, 2026 DMForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner75,000——27,209,326—10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 8:41 pm EDTLarry MaddenChief Financial Officer30,519$12.77$389,773428,636−6.65%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 21, 2026 MForm 4 →Jul 23, 9:54 pm EDTTimothy VanderhookCEO and Chairman, Director, 10% Owner12,500——9,069,775—10b5-1
Jul 21, 2026 AForm 4 →Jul 23, 9:54 pm EDTChristopher VanderhookChief Operating Officer, Director, 10% Owner12,500——9,069,775—10b5-1
Jul 21, 2026 MForm 4 →Jul 23, 9:53 pm EDTCapital V LLC10% Owner37,500——27,209,326—10b5-1