Wendell Wierenga sold $1.3M of CYTK
director at CYTOKINETICS INC. 20,000 shares at an average of $66.14, traded Dec 22, 2025, filed Dec 23, 2025.
Score components
- +15RoleDirector
- +25Trade size$1.3M at market
- +10Share of holdings soldSold 38% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
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.
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 0001061983-25-000051, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 22, 2025 | MOption exercise Common Stock10b5-1 | +20,000 | $7.61 | $152k | 52,444 | Dec 23, 2025 |
| Dec 22, 2025 | SOpen-market sale Common Stock10b5-1 | -20,000 | $66.14 | $1.3M | 32,444 | Dec 23, 2025 |
| Dec 22, 2025 | MOption exercise Non-Qualified Stock Option (Right to Buy)derivative10b5-1 | -20,000 | $0.00 | $0 | 0 | Dec 23, 2025 |
Related signals
Other insiders at CYTOKINETICS INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 0Weak | CYTOKINETICS INC | Fady Ibraham Malik EVP Research & Development | $215k 3,500 shares | -2% | |
| 23Weak | CYTOKINETICS INC | Robert I Blum President & CEO | $491k 7,500 shares | -3% | |
| 8Weak | CYTOKINETICS INC | Fady Ibraham Malik EVP Research & Development | $239k 3,500 shares | -2% | |
| 40Moderate | CYTOKINETICS INC | Robert I Blum President & CEO | $7.3M 105,426 shares | -27% | |
| 23Weak | CYTOKINETICS INC | Robert E Landry director | $72k 1,000 shares | -11% | |
| 18Weak | CYTOKINETICS INC | Robert E Landry director | $75k 1,000 shares | -10% | |
| 8Weak | CYTOKINETICS INC | Fady Ibraham Malik EVP Research & Development | $264k 3,500 shares | -2% | |
| 35Weak | CYTOKINETICS INC | B Lynne Parshall director | $357k 5,000 shares | -32% | |
| 23Weak | CYTOKINETICS INC | Andrew Callos EVP, Chief Commercial Officer | $237k 3,639 shares | -5% | |
| 65Notable | CYTOKINETICS INC | Robert I Blum President & CEO | $2.3M 36,601 shares | -8% |
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.