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Corporate insider · Form 4

Vanderhook Christopher

Chief Operating Officer

Conviction score
0
Neutral
Buys
$0
2 transactions
Sells
$274K
10 transactions · $274K discretionary

All tracked transactions

Curated subset of Vanderhook Christopher's SEC Form 4 filings. Routine 10b5-1 schedule sales are flagged inline and weighted less in the conviction score.

DateTickerActionValue
Apr 22, 2026DSPsell
$30K
2,796 × $10.7436
Apr 22, 2026DSPsell
$30K
2,796 × $10.7436
Apr 21, 2026DSPsell
$51K
4,704 × $10.9147
Apr 21, 2026DSPsell
$51K
4,704 × $10.9147
Apr 20, 2026DSPsell
$0
12,500 × $0
Apr 20, 2026DSPsell
$56K
5,000 × $11.1198
Apr 20, 2026DSPsell
$0
12,500 × $0
Apr 20, 2026DSPbuy
$0
12,500 × $0
Apr 20, 2026DSPsell
$0
12,500 × $0
Apr 20, 2026DSPsell
$56K
5,000 × $11.1198
Apr 20, 2026DSPsell
$0
12,500 × $0
Apr 20, 2026DSPbuy
$0
12,500 × $0

Method

Conviction score = logistic(role_weight × (buy_value − 0.2 × discretionary_sell_value)) mapped to −100..+100. CEOs and founders carry role_weight 0.95-1.0; directors 0.5; former executives 0.3. Routine 10b5-1 schedule sales are weighted down sharply — insiders file pre-arranged selling plans that trigger independent of their view of the stock, so they carry minimal signal. Open-market discretionary buys are rare and carry the heaviest weight.

Role weight: 0.40 (Chief Operating Officer).

Data sourced from SEC Form 4 filings via EDGAR. Curated subset (not every filing) — we prioritize CEO/CFO/Chair/10%-owner transactions and material $ amounts over noise.

Tickers Vanderhook has traded

DSP

SEC Form 4 filings disclose trades by corporate insiders within 2 business days. Conviction scoring is a synthesis — not investment advice.