Christopher Vanderhook

Insider

Chief Operating Officer

Trades at: DSP

30D 90D 1Y

Net shares · 365d

-84.1K

0 buy · 84.1K sell

Net value · 365d

-$928.1K

$0 in · $928.1K out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 84.1K sell

Net buy / sell volume (all companies)

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

All transactions

Show open-market only

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 Exercise·M
Jun 16, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
Jun 16, 26

Chief Operating Officer · 10b5-1

$55.9K

5.0K sh · $11.17

Own -40%
DSP Other·D
Jun 16, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
Jun 16, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own New
DSP Sell·S
Jun 15, 26

Chief Operating Officer

$101.3K

9.1K sh · $11.10

Own -3%
DSP Grant·A
Jun 9, 26

Chief Operating Officer

$0

52.1K sh

Own New
DSP Other·G
Jun 9, 26

Chief Operating Officer

$0

52.1K sh

Own -100%
DSP Grant·A
Jun 9, 26

Chief Operating Officer

$0

52.1K sh

Own New
DSP Other·G
Jun 9, 26

Chief Operating Officer

$0

52.1K sh

Own -100%
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 Exercise·M
May 19, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
May 19, 26

Chief Operating Officer · 10b5-1

$54.4K

5.0K sh · $10.89

Own -40%
DSP Other·D
May 19, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
May 19, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own New
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 Exercise·M
Apr 20, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
Apr 20, 26

Chief Operating Officer · 10b5-1

$55.6K

5.0K sh · $11.12

Own -40%
DSP Other·D
Apr 20, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
Apr 20, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own New
DSP Sell·S
Mar 19, 26

Chief Operating Officer · 10b5-1

$33.4K

2.9K sh · $11.42

Own -100%
DSP Sell·S
Mar 18, 26

Chief Operating Officer · 10b5-1

$60.0K

5.0K sh · $12.00

Own -63%
DSP Exercise·M
Mar 17, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
Mar 17, 26

Chief Operating Officer · 10b5-1

$59.0K

5.0K sh · $11.80

Own -39%
DSP Other·D
Mar 17, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
Mar 17, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own +2976%
DSP Other·D
Mar 10, 26

Chief Operating Officer

$463.9K

44.2K sh · $10.50

Own -13%
DSP Sell·S
Feb 19, 26

Chief Operating Officer · 10b5-1

$30.1K

3.3K sh · $9.17

Own -89%
DSP Sell·S
Feb 18, 26

Chief Operating Officer · 10b5-1

$43.4K

4.7K sh · $9.19

Own -56%
DSP Exercise·M
Feb 17, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
Feb 17, 26

Chief Operating Officer · 10b5-1

$37.8K

4.1K sh · $9.26

Own -33%
DSP Other·D
Feb 17, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
Feb 17, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own New
DSP Sell·S
Jan 22, 26

Chief Operating Officer · 10b5-1

$33.1K

2.6K sh · $12.87

Own -100%
DSP Sell·S
Jan 21, 26

Chief Operating Officer · 10b5-1

$60.3K

4.9K sh · $12.24

Own -66%
DSP Exercise·M
Jan 20, 26

Chief Operating Officer · 10b5-1

—

12.5K sh

Own +0%
DSP Sell·S
Jan 20, 26

Chief Operating Officer · 10b5-1

$59.7K

5.0K sh · $11.94

Own -40%
DSP Other·D
Jan 20, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own -0%
DSP Exercise·M
Jan 20, 26

Chief Operating Officer · 10b5-1

$0

12.5K sh

Own New

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	Exercise M	12.5K	+0%	—	—
Jun 16, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$11.17	$55.9K
Jun 16, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
Jun 16, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	New	—	$0
Jun 15, 2026	DSP	Chief Operating Officer	Sell S	9.1K	-3%	$11.10	$101.3K
Jun 9, 2026	DSP	Chief Operating Officer	Grant A	52.1K	New	—	$0
Jun 9, 2026	DSP	Chief Operating Officer	Other G	52.1K	-100%	—	$0
Jun 9, 2026	DSP	Chief Operating Officer	Grant A	52.1K	New	—	$0
Jun 9, 2026	DSP	Chief Operating Officer	Other G	52.1K	-100%	—	$0
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	Exercise M	12.5K	+0%	—	—
May 19, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$10.89	$54.4K
May 19, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
May 19, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	New	—	$0
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	Exercise M	12.5K	+0%	—	—
Apr 20, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$11.12	$55.6K
Apr 20, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
Apr 20, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	New	—	$0
Mar 19, 2026	DSP	Chief Operating Officer	Sell S	2.9K	-100%	$11.42	$33.4K
Mar 18, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-63%	$12.00	$60.0K
Mar 17, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	+0%	—	—
Mar 17, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-39%	$11.80	$59.0K
Mar 17, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
Mar 17, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	+2976%	—	$0
Mar 10, 2026	DSP	Chief Operating Officer	Other D	44.2K	-13%	$10.50	$463.9K
Feb 19, 2026	DSP	Chief Operating Officer	Sell S	3.3K	-89%	$9.17	$30.1K
Feb 18, 2026	DSP	Chief Operating Officer	Sell S	4.7K	-56%	$9.19	$43.4K
Feb 17, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	+0%	—	—
Feb 17, 2026	DSP	Chief Operating Officer	Sell S	4.1K	-33%	$9.26	$37.8K
Feb 17, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
Feb 17, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	New	—	$0
Jan 22, 2026	DSP	Chief Operating Officer	Sell S	2.6K	-100%	$12.87	$33.1K
Jan 21, 2026	DSP	Chief Operating Officer	Sell S	4.9K	-66%	$12.24	$60.3K
Jan 20, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	+0%	—	—
Jan 20, 2026	DSP	Chief Operating Officer	Sell S	5.0K	-40%	$11.94	$59.7K
Jan 20, 2026	DSP	Chief Operating Officer	Other D	12.5K	-0%	—	$0
Jan 20, 2026	DSP	Chief Operating Officer	Exercise M	12.5K	New	—	$0

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.