ROBERTSON REBECCA B (CIK 1201585) reported 16 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-22). Recent activity: Buy TNDM (8,759 shares), Sell CBLL (827 shares), Sell CBLL (7,445 shares), Buy CBLL (2,500 shares), Sell CBLL (2,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | TANDEM DIABETES CARE INC (TNDM) | Director | Buy | 8,759 | $0 |
| 2026-03-05 | Ceribell, Inc. (CBLL) | Director | Sell | 827 | $14,721 |
| 2026-01-06 | Ceribell, Inc. (CBLL) | Director | Sell | 7,445 | $131,255 |
| 2026-01-06 | Ceribell, Inc. (CBLL) | Director | Buy | 2,500 | $5,600 |
| 2026-01-06 | Ceribell, Inc. (CBLL) | Director | Sell | 2,500 | $54,725 |
| 2025-12-10 | Ceribell, Inc. (CBLL) | Director | Buy | 5,000 | $11,200 |
| 2025-12-10 | Ceribell, Inc. (CBLL) | Director | Sell | 5,000 | $100,000 |
| 2025-12-04 | Ceribell, Inc. (CBLL) | Director | Sell | 827 | $13,786 |
| 2025-09-05 | Ceribell, Inc. (CBLL) | Director | Sell | 827 | $9,395 |
| 2025-06-20 | Ceribell, Inc. (CBLL) | Director | Sell | 7,445 | $131,255 |
| 2025-06-20 | Ceribell, Inc. (CBLL) | Director | Sell | 11,188 | $199,706 |
| 2025-06-17 | Ceribell, Inc. (CBLL) | Director | Buy | 8,828 | $0 |
| 2025-06-17 | Ceribell, Inc. (CBLL) | Director | Buy | 545 | $1,221 |
| 2025-06-17 | Ceribell, Inc. (CBLL) | Director | Buy | 19,455 | $71,011 |
| 2025-06-17 | Ceribell, Inc. (CBLL) | Director | Sell | 20,000 | $342,800 |
| 2025-05-23 | TANDEM DIABETES CARE INC (TNDM) | Director | Buy | 4,387 | $90,548 |
Source: SEC Form 4 filings · as of 2026-05-22