William Mariner Greenman

CERS

William Mariner Greenman serves as director, officer: President and CEO at Cerus Corporation (CERS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

10 trades

$6.80M

Net Position

Net Seller

$6.80M

Companies Traded

CERS

Active Period

Mar 2021 – Mar 2026

10 total trades

Most Recent

Sell CERS

Mar 16, 2026 · $742.0K

William Mariner Greenman's Insider Trading at Cerus Corporation (CERS)

Buys

0 · $0.00

Sells

10 · $6.80M

Total Shares Bought

Total Shares Sold

1,853,820

CERS Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 16, 2026	Sell	447,757	$1.66	$742.0K	4,998,493
Mar 9, 2026	Sell	78,187	$2.01	$156.8K	5,446,250
Mar 13, 2025	Sell	193,913	$1.45	$281.2K	0
Mar 6, 2025	Sell	60,984	$1.50	$91.4K	0
Mar 3, 2025	Sell	23,023	$1.55	$35.7K	0
Mar 12, 2024	Sell	125,926	$2.04	$256.4K	0
Mar 12, 2023	Sell	60,480	$2.80	$169.3K	0
Feb 25, 2022	Sell	308,263	$5.70	$1.76M	0
Apr 16, 2021	Sell	233,859	$6.35	$1.49M	0
Mar 12, 2021	Sell	321,428	$5.69	$1.83M	0