Dean A. Gregory bought $31k of CERS
director at CERUS CORP. 25,000 shares at an average of $1.25, traded Aug 25, 2025, filed Aug 25, 2025.
Score components
- +15RoleDirector
- +5Trade size$31k at market
- +6Relative to holdingsHoldings up 41%
- +8Price context40% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +20.3%, 3m +32.0%, 6m +85.9%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000950170-25-111175, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 25, 2025 | POpen-market purchase Common Stock | +25,000 | $1.25 | $31k | 86,725 | Aug 25, 2025 |
Related signals
Other insiders at CERUS CORP and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 4Weak | CERUS CORP | Chrystal Jensen Chief Legal Officer | $90k 30,000 shares | -3% | |
| 12Weak | CERUS CORP | Vivek K Jayaraman Chief Executive Officer | $53k 16,666 shares | -1% | |
| 34Weak | CERUS CORP | William Mariner Greenman President and CEO | $300k 101,919 shares | -2% | |
| 27Weak | CERUS CORP | Kevin Dennis Green Chief Financial Officer | $99k 33,676 shares | -3% | |
| 18Weak | CERUS CORP | Chrystal Jensen Chief Legal Officer | $72k 24,329 shares | -2% | |
| 25Weak | CERUS CORP | Vivek K Jayaraman Chief Operating Officer | $125k 42,359 shares | -2% | |
| 30Weak | CERUS CORP | Eric Bjerkholt director | $53k 20,454 shares | -7% | |
| 15Weak | CERUS CORP | Vivek K Jayaraman Chief Operating Officer | $50k 16,667 shares | -1% | |
| 7Weak | CERUS CORP | Vivek K Jayaraman Chief Operating Officer | $50k 16,667 shares | -1% | |
| 26Weak | CERUS CORP | Richard J Benjamin Chief Medical Officer | $169k 101,740 shares | -12% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.