Rebecca B Robertson Insider Trading Activity
Rebecca B Robertson has been net-selling over the last 12 months with 0 purchases and 5 sales across 1 company.
CBLL is the most-traded position with 5 trades. The largest single transaction was a sale of CBLL for $100K on Dec 8, 2025.
Performance Scorecard
Forward stock performance after each transaction by Rebecca B Robertson. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -2.2% | 50% | 8 |
| 90 days | — | +8.4% | 75% | 8 |
| 120 days | — | -1.2% | 63% | 8 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersCBLL · Ceribell, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Mar 3, 2026 | CBLL | Sell | 827 | $17.80 | $15K | −4.2% | Director | |
Jan 2, 2026 | CBLL | Sell | 2,500 | $21.89 | $55K | −11.3% | Director | |
Dec 8, 2025 | CBLL | Sell | 5,000 | $20.00 | $100K | −37.3% | Director | |
Dec 2, 2025 | CBLL | Sell | 827 | $16.67 | $14K | −9.0% | Director | |
Sep 3, 2025 | CBLL | Sell | 827 | $11.36 | $9K | −8.2% | Director | |
Jun 18, 2025 | CBLL | Sell | 11,188 | $17.85 | $200K | −52.7% | Director | |
Jun 17, 2025 Filed 3d late | CBLL | Sell | 7,445 | $17.63 | $131K | −26.0% | Director | |
Jun 16, 2025 | CBLL | Sell | 20,000 | $17.14 | $343K | −41.1% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| CBLL | Ceribell, Inc. | 8 | $866K |
Other insiders at Ceribell, Inc.
5 other tracked filers at CBLL.