Company · Ownership research

CERUS CORP CERS

CIK 0001020214

Form 4 transactions dated Sep 1, 2023 to Sep 26, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-17.

Insider purchases & sales

Purchased: $101.42K
Sold: $5.61M

Sep 1, 2023 – Aug 17, 2026
Available records · partial months are marked ·

202510 of 25 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-11-24	Jensen Chrystal Chief Legal Officer	Sale	$93.50K 55,000 shares sold	7.02% sold Direct holding	▾
2025-08-25	Gregory Dean A. Director	Purchase	$31.25K 25,000 shares bought	40.50% added Direct holding	▾
2025-03-14	Jensen Chrystal Chief Legal Officer	Sale10b5-1 footnote	$43.61K 30,075 shares sold	3.70% sold Direct holding	▾
2025-03-14	Jayaraman Vivek K Chief Operating Officer	Sale10b5-1 footnote	$66.71K 46,004 shares sold	3.11% sold Direct holding	▾
2025-03-14	Greenman William Mariner President and CEO · Director	Sale10b5-1 footnote	$178.10K 122,827 shares sold	2.90% sold Direct holding	▾
2025-03-14	Green Kevin Dennis Chief Financial Officer	Sale10b5-1 footnote	$53.27K 36,740 shares sold	4.03% sold Direct holding	▾
2025-03-14	Benjamin Richard J Chief Medical Officer	Sale10b5-1 footnote	$43.61K 30,075 shares sold	4.20% sold Direct holding	▾
2025-03-13	Jensen Chrystal Chief Legal Officer	Sale10b5-1 footnote	$27.48K 18,949 shares sold	2.28% sold Direct holding	▾
2025-03-13	Jayaraman Vivek K Chief Operating Officer	Sale10b5-1 footnote	$43.48K 29,985 shares sold	1.99% sold Direct holding	▾
2025-03-13	Greenman William Mariner President and CEO · Director	Sale10b5-1 footnote	$103.07K 71,086 shares sold	1.65% sold Direct holding	▾

Showing 25 / 25 record groups in 2025. The complete set is available through the API.

CERUS CORP · CERS

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 25 of 25 purchase / sale groups and 27 of 27 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"CERS","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.