Insider · CIK 0001843103
Timothy Vanderhook
Files at DSP (Viant Technology Inc.). First filing Jun 13, 2025, latest Mar 19, 2026.
Timothy Vanderhook files SEC Form 4 as CEO, chair, director and 10% owner at DSP (Viant Technology Inc.). Since Jun 13, 2025, Timothy Vanderhook has reported 0 open-market buys worth $0 and 7 open-market sells worth $874k, the latest filed on Mar 19, 2026.
A track record needs three past buys with six months of prices behind them; Timothy Vanderhook has 0, so none is measured yet.
The newest scored trade: sold $152k of DSP on Mar 17, 2026, filed Mar 19, 2026, scored 36 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 5 sells worth $671k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
DSP: Viant Technology Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 36Weak | Viant Technology Inc. | $152k 12,920 shares | -100% | +44% from low-27% from high | |
| 35Weak | Viant Technology Inc. | $111k 12,080 shares | -97% | +13% from low-61% from high | |
| 36Weak | Viant Technology Inc. | $153k 12,500 shares | -100% | +45% from low-54% from high | |
| 45Moderate | Viant Technology Inc. | $29k 2,500 shares | -100% | +44% from low-55% from high | |
| 17Weak | Viant Technology Inc. | $225k 19,102 shares | -5% | +42% from low-56% from high | |
| 34Weak | Viant Technology Inc. | $85k 8,782 shares | -2% | +0% from low-64% from high | |
| 50Moderate | Viant Technology Inc. | $117k 8,960 shares | -2% | +23% from low-51% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Dec 15, 2025 | DSP Viant Technology Inc. | 9,500 0.06% of outstanding | $111k | Dec 16, 2025 | none |
| Sep 11, 2025 | DSP Viant Technology Inc. | 9,500 0.06% of outstanding | $98k | Sep 11, 2025 | $117k |
| Jun 11, 2025 | DSP Viant Technology Inc. | 9,500 0.06% of outstanding | $135k | Jun 11, 2025 | none |
Transactions
Every row this insider has filed, 40 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class A Common Stock | -8,636 | $12.74 | $110k | 200,244 | 29 d ago |
| Mar 17, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,920 | Mar 19, 2026 |
| Mar 17, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,119,775 | Mar 19, 2026 |
| Mar 17, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.80 | $59k | 7,920 | Mar 19, 2026 |
| Mar 18, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $12.00 | $60k | 2,920 | Mar 19, 2026 |
| Mar 19, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,920 | $11.42 | $33k | 0 | Mar 19, 2026 |
| Mar 17, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,119,775 | Mar 19, 2026 |
| Mar 10, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class A Common Stock | -44,177 | $10.50 | $464k | 218,005 | Mar 12, 2026 |
| Feb 17, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | Feb 19, 2026 |
| Feb 17, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,132,275 | Feb 19, 2026 |
| Feb 17, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -4,079 | $9.26 | $38k | 8,421 | Feb 19, 2026 |
| Feb 18, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -4,722 | $9.19 | $43k | 3,699 | Feb 19, 2026 |
| Feb 19, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -3,279 | $9.17 | $30k | 420 | Feb 19, 2026 |
| Feb 17, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,132,275 | Feb 19, 2026 |
| Jan 20, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | Jan 22, 2026 |
| Jan 20, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,144,775 | Jan 22, 2026 |
| Jan 20, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.94 | $60k | 7,500 | Jan 22, 2026 |
| Jan 21, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -4,926 | $12.24 | $60k | 2,574 | Jan 22, 2026 |
| Jan 22, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,574 | $12.87 | $33k | 0 | Jan 22, 2026 |
| Jan 20, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,144,775 | Jan 22, 2026 |
| Dec 19, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,500 | $11.79 | $29k | 0 | Dec 19, 2025 |
| Dec 16, 2025 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | Dec 18, 2025 |
| Dec 16, 2025 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,157,275 | Dec 18, 2025 |
| Dec 17, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stock10b5-1 | -9,102 | $11.70 | $107k | 347,182 | Dec 18, 2025 |
| Dec 17, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.74 | $59k | 7,500 | Dec 18, 2025 |
| Dec 18, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.93 | $60k | 2,500 | Dec 18, 2025 |
| Dec 18, 2025 | DSP Viant Technology Inc. | GGift Class A Common Stock10b5-1 | -85,000 | $0.00 | $0 | 262,182 | Dec 18, 2025 |
| Dec 16, 2025 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,157,275 | Dec 18, 2025 |
| Sep 15, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stock | -8,782 | $9.73 | $85k | 356,284 | Sep 17, 2025 |
| Sep 16, 2025 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC | +313,926 | $0.00 | $0 | 313,926 | Sep 17, 2025 |
| Sep 16, 2025 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC | -313,926 | $0.00 | $0 | 9,169,775 | Sep 17, 2025 |
| Sep 17, 2025 | DSP Viant Technology Inc. | DDisposition to issuer Class A Common Stockindirect: By Capital V LLC | -313,926 | $9.56 | $3.0M | 0 | Sep 17, 2025 |
| Sep 16, 2025 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC | -313,926 | $0.00 | $0 | 9,169,775 | Sep 17, 2025 |
| Jun 13, 2025 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stock | -8,960 | $13.08 | $117k | 365,076 | Jun 13, 2025 |
| Dec 18, 2024 | DSP Viant Technology Inc. | GGift Class A Common Stock | -31,556 | $0.00 | $0 | 466,240 | Dec 20, 2024 |
| Dec 19, 2024 | DSP Viant Technology Inc. | MOption exercise Class A Common Stock | +203,527 | $4.44 | $904k | 669,767 | Dec 20, 2024 |
| Dec 19, 2024 | DSP Viant Technology Inc. | FTax withholding Class A Common Stock | -47,115 | $19.18 | $904k | 622,652 | Dec 20, 2024 |
| Dec 19, 2024 | DSP Viant Technology Inc. | DDisposition to issuer Class A Common Stock | -156,412 | $19.18 | $3.0M | 466,240 | Dec 20, 2024 |
| Dec 19, 2024 | DSP Viant Technology Inc. | MOption exercise Non-qualified Stock Option (Right to Buy)derivative | -203,527 | $0.00 | $0 | 178,105 | Dec 20, 2024 |
| Dec 10, 2024 | DSP Viant Technology Inc. | DDisposition to issuer Class A Common Stock | -8,636 | $21.37 | $185k | 497,796 | Dec 12, 2024 |
Questions about Timothy Vanderhook
Answered from the filings on this page, as of the latest one.
Is Timothy Vanderhook buying or selling?
In the last 12 months Timothy Vanderhook reported 0 open-market buys worth $0 and 5 open-market sells worth $671k on SEC Form 4; the latest was sold $152k of DSP on Mar 17, 2026. Grants, option exercises and tax withholding are not counted.
How did Timothy Vanderhook's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Timothy Vanderhook has 0.
Where does Timothy Vanderhook file Form 4?
Timothy Vanderhook has filed Form 4 at DSP (Viant Technology Inc.) as CEO and Chairman. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.