Cerus Corporation (CERS) Insider Trading

Last 12 months

Insiders sold $3.09M and bought nothing on the open market.

98% of the selling was scheduled in advance under 10b5-1 plans. The last open-market buy by an executive or director was in Aug 2025.

Net open-market

−$3.09M

0 buys · 19 sales

Under a 10b5-1 plan

98%

of the value sold

Insiders who bought / sold

0 / 6

executives and directors

Last open-market buy

Aug 2025

Aug 25, 2025

Get an email when CERS's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 17	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	30,000	$2.98	$89k	3.1%	Form 4
Jul 16	Vivek K Jayaraman Chief Executive Officer	Sold10b5-1 plan	16,666	$3.16	$53k	0.7%	Form 4
Jun 30	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	42,359	$2.94	$125k	1.8%	Form 4
Jun 30	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	24,329	$2.94	$72k	2.5%	Form 4
Jun 30	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan	33,676	$2.94	$99k	3.1%	Form 4
Jun 30	William Mariner Greenman President and CEO	Sold10b5-1 plan	101,919	$2.94	$300k	2.0%	Form 4
Jun 9	Eric Bjerkholt Director	SoldNo plan	20,454	$2.60	$53k	7.2%	Form 4
May 29	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	16,667	$3.00	$50k	1.0%	Form 4
May 1	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	16,667	$3.00	$50k	1.0%	Form 4
Mar 12	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	165,200	$1.66	$274k	8.6%	Form 4
Mar 12	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan	127,544	$1.66	$212k	11%	Form 4
Mar 12	William Mariner Greenman President and CEO	Sold10b5-1 plan	447,757	$1.66	$743k	8.2%	Form 4
Mar 12	Richard J Benjamin Chief Medical Officer	Sold10b5-1 plan	101,740	$1.66	$169k	12%	Form 4
Mar 5 – 9	Richard J Benjamin Chief Medical Officer	Sold10b5-1 plan 3 parts	125,894	$1.99 average	$251k	13%	Form 4
Mar 6	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	34,094	$2.01	$69k	1.8%	Form 4
Mar 6	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	30,845	$2.01	$62k	2.8%	Form 4
Mar 5 – 6	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan 2 parts	83,021	$2.04 average	$170k	6.6%	Form 4
Mar 6	William Mariner Greenman President and CEO	Sold10b5-1 plan	78,187	$2.01	$157k	1.4%	Form 4
Nov 24, 2025	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	55,000	$1.70	$94k	7.0%	Form 4
Aug 25, 2025	Dean A. Gregory Director	Bought	25,000	$1.25	$31k	41%	Form 4
Mar 13, 2025 – Mar 14, 2025	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan 2 parts	49,024	$1.45 average	$71k	5.9%	Form 4
Mar 13, 2025 – Mar 14, 2025	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan 2 parts	75,989	$1.45 average	$110k	5.0%	Form 4
Mar 13, 2025 – Mar 14, 2025	William Mariner Greenman President and CEO	Sold10b5-1 plan 2 parts	193,913	$1.45 average	$281k	4.5%	Form 4
Mar 13, 2025 – Mar 14, 2025	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan 2 parts	59,887	$1.45 average	$87k	6.4%	Form 4
Mar 13, 2025 – Mar 14, 2025	Richard J Benjamin Chief Medical Officer	Sold10b5-1 plan 2 parts	49,024	$1.45 average	$71k	6.7%	Form 4
Mar 12, 2025	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	113,008	$1.66	$188k	11%	Form 4
Mar 7, 2025	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	27,457	$1.50	$41k	3.2%	Form 4
Mar 7, 2025	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	33,999	$1.50	$51k	2.2%	Form 4
Mar 7, 2025	William Mariner Greenman President and CEO	Sold10b5-1 plan	60,984	$1.50	$91k	1.4%	Form 4
Mar 7, 2025	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan	31,148	$1.50	$47k	3.2%	Form 4
Mar 7, 2025	Richard J Benjamin Chief Medical Officer	Sold10b5-1 plan	26,139	$1.50	$39k	3.4%	Form 4
Mar 4, 2025	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan 2 parts	66,292	$1.59 average	$105k	14%	Form 4
Mar 4, 2025	Vivek K Jayaraman Chief Operating Officer	Sold10b5-1 plan	10,780	$1.55	$17k	1.2%	Form 4
Mar 4, 2025	William Mariner Greenman President and CEO	Sold10b5-1 plan	23,023	$1.55	$36k	0.7%	Form 4
Mar 3, 2025 – Mar 4, 2025	Kevin Dennis Green Chief Financial Officer	Sold10b5-1 plan 2 parts	69,042	$1.58 average	$109k	12%	Form 4
Mar 3, 2025 – Mar 4, 2025	Richard J Benjamin Chief Medical Officer	Sold10b5-1 plan 2 parts	57,546	$1.58 average	$91k	13%	Form 4
Dec 16, 2024	Chrystal Jensen Chief Legal Officer	Sold10b5-1 plan	16,667	$1.71	$29k	3.5%	Form 4
Dec 13, 2024	Dean A. Gregory Director	Bought	1,725	$1.70	$3k	2.9%	Form 4
Dec 12, 2024	Eric Bjerkholt Director	SoldNo plan	20,000	$1.79	$36k	11%	Form 4

Aug 1710b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 30,000 at $2.98
$89k
3.1% of stake
Jul 1610b5-1 plan
Vivek K Jayaraman
Chief Executive Officer · sold 16,666 at $3.16
$53k
0.7% of stake
Jun 3010b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 42,359 at $2.94
$125k
1.8% of stake
Jun 3010b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 24,329 at $2.94
$72k
2.5% of stake
Jun 3010b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 33,676 at $2.94
$99k
3.1% of stake
Jun 3010b5-1 plan
William Mariner Greenman
President and CEO · sold 101,919 at $2.94
$300k
2.0% of stake
Jun 9No plan
Eric Bjerkholt
Director · sold 20,454 at $2.60
$53k
7.2% of stake
May 2910b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 16,667 at $3.00
$50k
1.0% of stake
May 110b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 16,667 at $3.00
$50k
1.0% of stake
Mar 1210b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 165,200 at $1.66
$274k
8.6% of stake
Mar 1210b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 127,544 at $1.66
$212k
11% of stake
Mar 1210b5-1 plan
William Mariner Greenman
President and CEO · sold 447,757 at $1.66
$743k
8.2% of stake
Mar 1210b5-1 plan
Richard J Benjamin
Chief Medical Officer · sold 101,740 at $1.66
$169k
12% of stake
Mar 5 – 910b5-1 plan
Richard J Benjamin
Chief Medical Officer · sold 125,894 at avg $1.99
$251k
13% of stake
Mar 610b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 34,094 at $2.01
$69k
1.8% of stake
Mar 610b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 30,845 at $2.01
$62k
2.8% of stake
Mar 5 – 610b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 83,021 at avg $2.04
$170k
6.6% of stake
Mar 610b5-1 plan
William Mariner Greenman
President and CEO · sold 78,187 at $2.01
$157k
1.4% of stake
Nov 24, 202510b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 55,000 at $1.70
$94k
7.0% of stake
Aug 25, 2025
Dean A. Gregory
Director · bought 25,000 at $1.25
$31k
41% of stake
Mar 13, 2025 – Mar 14, 202510b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 49,024 at avg $1.45
$71k
5.9% of stake
Mar 13, 2025 – Mar 14, 202510b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 75,989 at avg $1.45
$110k
5.0% of stake
Mar 13, 2025 – Mar 14, 202510b5-1 plan
William Mariner Greenman
President and CEO · sold 193,913 at avg $1.45
$281k
4.5% of stake
Mar 13, 2025 – Mar 14, 202510b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 59,887 at avg $1.45
$87k
6.4% of stake
Mar 13, 2025 – Mar 14, 202510b5-1 plan
Richard J Benjamin
Chief Medical Officer · sold 49,024 at avg $1.45
$71k
6.7% of stake
Mar 12, 202510b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 113,008 at $1.66
$188k
11% of stake
Mar 7, 202510b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 27,457 at $1.50
$41k
3.2% of stake
Mar 7, 202510b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 33,999 at $1.50
$51k
2.2% of stake
Mar 7, 202510b5-1 plan
William Mariner Greenman
President and CEO · sold 60,984 at $1.50
$91k
1.4% of stake
Mar 7, 202510b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 31,148 at $1.50
$47k
3.2% of stake
Mar 7, 202510b5-1 plan
Richard J Benjamin
Chief Medical Officer · sold 26,139 at $1.50
$39k
3.4% of stake
Mar 4, 202510b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 66,292 at avg $1.59
$105k
14% of stake
Mar 4, 202510b5-1 plan
Vivek K Jayaraman
Chief Operating Officer · sold 10,780 at $1.55
$17k
1.2% of stake
Mar 4, 202510b5-1 plan
William Mariner Greenman
President and CEO · sold 23,023 at $1.55
$36k
0.7% of stake
Mar 3, 2025 – Mar 4, 202510b5-1 plan
Kevin Dennis Green
Chief Financial Officer · sold 69,042 at avg $1.58
$109k
12% of stake
Mar 3, 2025 – Mar 4, 202510b5-1 plan
Richard J Benjamin
Chief Medical Officer · sold 57,546 at avg $1.58
$91k
13% of stake
Dec 16, 202410b5-1 plan
Chrystal Jensen
Chief Legal Officer · sold 16,667 at $1.71
$29k
3.5% of stake
Dec 13, 2024
Dean A. Gregory
Director · bought 1,725 at $1.70
$3k
2.9% of stake
Dec 12, 2024No plan
Eric Bjerkholt
Director · sold 20,000 at $1.79
$36k
11% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch CERS, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in CERS's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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