Mark Mossler

CCCC

Mark Mossler serves as Chief Accounting Officer at C4 Therapeutics, Inc. (CCCC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

2 trades

$11.2K

Net Position

Net Seller

$11.2K

Companies Traded

CCCC

Active Period

Feb 2025 – Feb 2026

2 total trades

Most Recent

Sell CCCC

Feb 13, 2026 · $6.2K

Mark Mossler's Insider Trading at C4 Therapeutics, Inc. (CCCC)

Buys

0 · $0.00

Sells

2 · $11.2K

Total Shares Bought

Total Shares Sold

4,854

CCCC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 13, 2026↗	Sell	3,268	$1.89	$6.2K	0
Feb 14, 2025↗	Sell	1,586	$3.18	$5.0K	0

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REYNO LEONARD

Chief Medical Officer

CCCCSell · Feb 14, 2026

Paige Mahaney

Chief Scientific Officer

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Kelly Schick

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CCCCSell · Feb 14, 2026

REYNO LEONARD

officer: Chief Medical Officer

CCCCSell · Jan 16, 2026

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