CERS CERUS CORP Insider Trading

CEO William Greenman sold 447,757 shares of CERS at $1.66, reducing stake 8.2% to 5.00M shares as stock down 34.3% from 52-week high.

CEO William Greenman Mariner sold 447,757 shares at $1.66 on 2026-03-12, reducing his stake from 5.45M to 5.00M shares (net change of -8.2% vs pre-transaction holdings). The sale occurred against a backdrop of significant stock underperformance: the current price of $1.80 is -34.3% from the 52-week high of $2.74, and the stock has declined -19.6% over the past 30 days and -16.7% over 90 days. CERUS is operating at a fundamental crossroads—while annual revenue growth is positive at +16.1%, the company generated net income of $-19.0K on revenue of $15.4M in its most recent quarter and was unprofitable over its most recent full fiscal year. The CEO remains a substantial shareholder with 5.00M shares post-transaction, but the sale during a period of pronounced price erosion and operational losses warrants investor scrutiny of execution trajectory and cash requirements.

Director Gregory Dean A. bought 25,000 shares of CERUS at $1.25, raising holdings 40.5% to 86.7K shares.

Director Gregory Dean A. purchased 25,000 shares at $1.25 on 2025-08-25, a 40.5% increase to his post-transaction holding of 86.7K shares. The stock is currently trading at $1.28, down 7.9% over 30 days and 46.2% below its 52-week high of $2.38, suggesting the purchase occurred in a depressed price environment within the annual range. However, his prior open-market buy at this same ticker on 2024-12-13 resulted in -7.1% and -18.2% returns at 30 and 90 days respectively, establishing a pattern where his CERS purchases have not generated positive returns in subsequent measurement windows. The company remains unprofitable with $-5.7M net income against $15.4M quarterly revenue, adding fundamental headwinds that complicate any interpretation of increased accumulation.

Director Gregory Dean A. purchased 1,725 shares of CERS at $1.70; stock now $1.57, -35.1% from 52-week high

Director Gregory Dean A. acquired 1,725 shares at $1.70 on 2024-12-13, increasing his stake from 60,000 to 61,725 shares. The purchase occurred at a price that has since declined to $1.57, representing a -11.3% decline over 30 days and positioning the stock -35.1% below its 52-week high of $2.42. CERUS CORP reported quarterly revenue of $15.4M with a net loss of $-2.9M, and the company finished its most recent full fiscal year unprofitable. The small size of this transaction ($2,932.50 total value) and modest portfolio impact (+2.9% vs pre-transaction holdings) provide limited basis for inferring directional conviction about the stock's near-term prospects.