Insider · CIK 0001843104
Christopher Vanderhook
cooofficerdirectorowner
Files at DSP (Viant Technology Inc.). First filing Jun 13, 2025, latest Jun 18, 2026.
Christopher Vanderhook files SEC Form 4 as COO, director and 10% owner at DSP (Viant Technology Inc.). Since Jun 13, 2025, Christopher Vanderhook has reported 0 open-market buys worth $0 and 11 open-market sells worth $1.4M, the latest filed on Jun 18, 2026.
A track record needs three past buys with six months of prices behind them; Christopher Vanderhook has 0, so none is measured yet.
The newest scored trade: sold $139k of DSP on Jun 16, 2026, filed Jun 18, 2026, scored 31 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 9 sells worth $1.2M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 11
$0 bought, $1.4M sold
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.
DSPOct 9, 2026 · close 13.13
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 |
|---|---|---|---|---|---|
| 31Weak | Viant Technology Inc. | $139k 12,500 shares | -100% | +40% from low-23% from high | |
| 45Moderate | Viant Technology Inc. | $101k 9,125 shares | -3% | +36% from low-25% from high | |
| 31Weak | Viant Technology Inc. | $134k 12,500 shares | -100% | +34% from low-27% from high | |
| 31Weak | Viant Technology Inc. | $137k 12,500 shares | -100% | +38% from low-30% from high | |
| 31Weak | Viant Technology Inc. | $152k 12,920 shares | -100% | +44% from low-27% from high | |
| 30Weak | Viant Technology Inc. | $111k 12,080 shares | -97% | +13% from low-61% from high | |
| 31Weak | Viant Technology Inc. | $153k 12,500 shares | -100% | +45% from low-54% from high | |
| 40Moderate | Viant Technology Inc. | $29k 2,500 shares | -100% | +44% from low-55% from high | |
| 12Weak | Viant Technology Inc. | $225k 19,102 shares | -5% | +42% from low-56% from high | |
| 29Weak | Viant Technology Inc. | $85k 8,782 shares | -2% | +0% from low-64% from high | |
| 45Moderate | 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
The newest 50 of 74 rows this insider has filed.
| 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 | 285,244 | 29 d ago |
| Jun 16, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | Jun 18, 2026 |
| Jun 16, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,082,275 | Jun 18, 2026 |
| Jun 16, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.17 | $56k | 7,500 | Jun 18, 2026 |
| Jun 17, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.09 | $55k | 2,500 | Jun 18, 2026 |
| Jun 18, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,500 | $10.96 | $27k | 0 | Jun 18, 2026 |
| Jun 16, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,082,275 | Jun 18, 2026 |
| Jun 15, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stock | -9,125 | $11.10 | $101k | 293,880 | Jun 15, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Common Stockindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Common Stockindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Common Stockindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Common Stockindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Common Stockindirect: Hayden Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Common Stockindirect: Carter Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Common Stockindirect: Clay Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Common Stockindirect: Colbie Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Unitsderivativeindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Unitsderivativeindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Unitsderivativeindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | GGift Class B Unitsderivativeindirect: By GRAT | -52,096 | $0.00 | $0 | 0 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Unitsderivativeindirect: Hayden Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Unitsderivativeindirect: Carter Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Unitsderivativeindirect: Clay Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| Jun 9, 2026 | DSP Viant Technology Inc. | AGrant or award Class B Unitsderivativeindirect: Colbie Vanderhook Gift Trust | +52,096 | $0.00 | $0 | 52,096 | Jun 10, 2026 |
| May 19, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | May 21, 2026 |
| May 19, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,094,775 | May 21, 2026 |
| May 19, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $10.89 | $54k | 7,500 | May 21, 2026 |
| May 20, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $10.60 | $53k | 2,500 | May 21, 2026 |
| May 21, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,500 | $10.79 | $27k | 0 | May 21, 2026 |
| May 19, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,094,775 | May 21, 2026 |
| Apr 20, 2026 | DSP Viant Technology Inc. | MOption exercise Class A Common Stockindirect: By Capital V LLC10b5-1 | +12,500 | $0.00 | $0 | 12,500 | Apr 22, 2026 |
| Apr 20, 2026 | DSP Viant Technology Inc. | DDisposition to issuer Class B Common Stockindirect: By Capital V LLC10b5-1 | -12,500 | $0.00 | $0 | 9,107,275 | Apr 22, 2026 |
| Apr 20, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -5,000 | $11.12 | $56k | 7,500 | Apr 22, 2026 |
| Apr 21, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -4,704 | $10.91 | $51k | 2,796 | Apr 22, 2026 |
| Apr 22, 2026 | DSP Viant Technology Inc. | SOpen-market sale Class A Common Stockindirect: By Capital V LLC10b5-1 | -2,796 | $10.74 | $30k | 0 | Apr 22, 2026 |
| Apr 20, 2026 | DSP Viant Technology Inc. | MOption exercise Class B Unitsderivativeindirect: By Capital V LLC10b5-1 | -12,500 | - | - | 9,107,275 | Apr 22, 2026 |
| 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 | 303,005 | 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 |
50 of 74 rows shown.
Questions about Christopher Vanderhook
Answered from the filings on this page, as of the latest one.
Is Christopher Vanderhook buying or selling?
In the last 12 months Christopher Vanderhook reported 0 open-market buys worth $0 and 9 open-market sells worth $1.2M on SEC Form 4; the latest was sold $139k of DSP on Jun 16, 2026. Grants, option exercises and tax withholding are not counted.
How did Christopher Vanderhook's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Christopher Vanderhook has 0.
Where does Christopher Vanderhook file Form 4?
Christopher Vanderhook has filed Form 4 at DSP (Viant Technology Inc.) as Chief Operating Officer. 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.