Greenman William Mariner 4
4 · CERUS CORP · Filed Mar 9, 2026
Research Summary
AI-generated summary of this filing
Cerus (CERS) CEO William Greenman Receives Award, Sells 78,187 Shares
What Happened William Mariner Greenman, President, CEO and Director of Cerus Corp (CERS), received an award of 193,270 shares on 2026-03-05 (grant, reported as $0.00 acquisition). The next day (2026-03-06) he disposed of 78,187 shares in a sale at a weighted average price of $2.01 per share, generating roughly $156,804. The filing indicates the sale was to satisfy statutory tax withholding and related brokerage fees in connection with the vesting of restricted stock units, not a discretionary sale.
Key Details
- Transaction dates and prices:
- 2026-03-05: Award/grant — 193,270 shares @ $0.00 (acquired)
- 2026-03-06: Sale — 78,187 shares @ $2.01 (weighted avg) ≈ $156,804
- Shares owned after transaction: Not disclosed in this Form 4 filing.
- Footnotes:
- F1: Sale made pursuant to an instruction intended to comply with a Rule 10b5‑1 plan elected on the grant date to cover tax withholding and brokerage fees; not a discretionary sale.
- F2: Sales price is a weighted average from a block trade; reporting person will provide details on request.
- Filing: Transactions occurred 03/05–03/06; Form 4 was filed 2026-03-09 (as reported).
Context This sequence reflects an equity award (likely RSU vesting) followed by a withholding-related disposition rather than an open-market decision to liquidate holdings for other purposes. For retail investors, award receipts increase insider ownership (subject to vesting), while withholding-related sales are routine and should not be read on their own as a directional signal about the insider’s view of the company.
Insider Transaction Report
- Award
Common Stock
2026-03-05+193,270→ 5,524,437 total - Sale
Common Stock
[F1][F2]2026-03-06$2.01/sh−78,187$156,804→ 5,446,250 total
Footnotes (2)
- [F1]Represents shares sold pursuant to an instruction intended to comply with the requirement of Rule 10b5-1 that was elected by the Reporting Person on the date of grant to cover statutory tax withholding obligations and corresponding brokerage fees in connection with the vesting of certain restricted stock units and does not represent a discretionary sale by the reporting person.
- [F2]Represents a weighted average sales price. These shares were sold in a block trade per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold pursuant to such block trade.