Lawrence Otto Klein sold $6.9M of ORKA
Chief Executive Officer at ARCA biopharma, Inc.. 75,000 shares at an average of $91.83, traded Sep 1, 2026, filed Sep 1, 2026.
Score components
- +25RoleCEO
- +25Trade size$6.9M at market
- 0Share of holdings soldSold 7.5% of holdings
- +15Cluster5 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 0000907654-26-000087, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | MOption exercise Common Stock10b5-1 | +75,000 | $7.80 | $585k | 1,000,580 | 43 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -6,604 | $90.79 | $600k | 993,976 | 43 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -63,596 | $91.90 | $5.8M | 930,380 | 43 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -4,800 | $92.44 | $444k | 925,580 | 43 d ago |
| Sep 1, 2026 | MOption exercise Employee Warrant (right to buy)derivative10b5-1 | -75,000 | $0.00 | $0 | 1,553,513 | 43 d ago |
Related signals
Other insiders at ARCA biopharma, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | ARCA biopharma, Inc. | Lawrence Otto Klein Chief Executive Officer | $2.1M 25,000 shares | -3% | |
| 17Weak | ARCA biopharma, Inc. | Arjun Agarwal Senior Vice President, Finance | $51k 533 shares | -4% | |
| 29Weak | ARCA biopharma, Inc. | Paul T Quinlan General Counsel | $936k 10,000 shares | -25% | |
| 29Weak | ARCA biopharma, Inc. | Arjun Agarwal Senior Vice President, Finance | $926k 10,019 shares | -40% | |
| 21Weak | ARCA biopharma, Inc. | Joana Goncalves Chief Medical Officer | $734k 7,947 shares | -20% | |
| 53Moderate | ARCA biopharma, Inc. | Lawrence Otto Klein Chief Executive Officer | $235k 2,452 shares | -0% | |
| 44Moderate | ARCA biopharma, Inc. | Laura Lee Sandler Chief Operating Officer | $87k 906 shares | -0% | |
| 40Moderate | ARCA biopharma, Inc. | Paul T Quinlan General Counsel | $99k 1,039 shares | -3% | |
| 17Weak | ARCA biopharma, Inc. | Laura Lee Sandler Chief Operating Officer | $459k 5,000 shares | -2% | |
| 22Weak | ARCA biopharma, Inc. | Joana Goncalves Chief Medical Officer | $783k 7,000 shares | -18% |
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.