Christopher Vanderhook

Insider

Chief Operating Officer

Trades at: DSP

30D 90D 1Y

Net shares · 90d

-46.6K

0 buy · 46.6K sell

Net value · 90d

-$511.4K

$0 in · $511.4K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 46.6K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions · open-market

Include grants & non-market

DSP Sell·S
Jun 18, 26

Chief Operating Officer · 10b5-1

$27.4K

2.5K sh · $10.96

Own -100%
DSP Sell·S
Jun 17, 26

Chief Operating Officer · 10b5-1

$55.4K

5.0K sh · $11.09

Own -67%
DSP Sell·S
Jun 16, 26

Chief Operating Officer · 10b5-1

$55.9K

5.0K sh · $11.17

Own -40%
DSP Sell·S
Jun 15, 26

Chief Operating Officer

$101.3K

9.1K sh · $11.10

Own -3%
DSP Sell·S
May 21, 26

Chief Operating Officer · 10b5-1

$27.0K

2.5K sh · $10.79

Own -100%
DSP Sell·S
May 20, 26

Chief Operating Officer · 10b5-1

$53.0K

5.0K sh · $10.60

Own -67%
DSP Sell·S
May 19, 26

Chief Operating Officer · 10b5-1

$54.4K

5.0K sh · $10.89

Own -40%
DSP Sell·S
Apr 22, 26

Chief Operating Officer · 10b5-1

$30.0K

2.8K sh · $10.74

Own -100%
DSP Sell·S
Apr 21, 26

Chief Operating Officer · 10b5-1

$51.3K

4.7K sh · $10.91

Own -63%
DSP Sell·S
Apr 20, 26

Chief Operating Officer · 10b5-1

$55.6K

5.0K sh · $11.12

Own -40%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 18, 2026	DSP	Chief Operating Officer	Sell S	2.5K	-100%	$10.96	$27.4K
Jun 17, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-67%	$11.09	$55.4K
Jun 16, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$11.17	$55.9K
Jun 15, 2026	DSP	Chief Operating Officer	Sell S	9.1K	-3%	$11.10	$101.3K
May 21, 2026	DSP	Chief Operating Officer	Sell S	2.5K	-100%	$10.79	$27.0K
May 20, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-67%	$10.60	$53.0K
May 19, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$10.89	$54.4K
Apr 22, 2026	DSP	Chief Operating Officer	Sell S	2.8K	-100%	$10.74	$30.0K
Apr 21, 2026	DSP	Chief Operating Officer	Sell S	4.7K	-63%	$10.91	$51.3K
Apr 20, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$11.12	$55.6K

About Christopher Vanderhook

This profile aggregates every SEC Form 4 insider transaction reported by Christopher Vanderhook across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.