Ridloff Elena (CIK 1772518) reported 15 SEC Form 4 insider transactions across 3 companies over the past 18 months (most recent 2026-05-11). Recent activity: Sell KYMR (3,000 shares), Buy KYMR (3,000 shares), Sell SION (748 shares), Sell SION (8,836 shares), Sell SION (3,700 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | Kymera Therapeutics, Inc. (KYMR) | Director | Sell | 3,000 | $261,000 |
| 2026-05-11 | Kymera Therapeutics, Inc. (KYMR) | Director | Buy | 3,000 | $93,600 |
| 2025-09-03 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 748 | $18,835 |
| 2025-09-03 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 8,836 | $221,607 |
| 2025-08-28 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 3,700 | $92,981 |
| 2025-08-28 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 3,618 | $90,812 |
| 2025-08-28 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 16,098 | $418,065 |
| 2025-08-21 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 34,500 | $727,260 |
| 2025-08-21 | Sionna Therapeutics, Inc. (SION) | CFO & Head of Corp. Dev. | Sell | 17,500 | $397,075 |
| 2025-06-20 | Kronos Bio, Inc. (KRON) | Director | Sell | 25,296 | $14,419 |
| 2025-06-11 | Kymera Therapeutics, Inc. (KYMR) | Director | Buy | 4,500 | $91,305 |
| 2025-06-11 | Kymera Therapeutics, Inc. (KYMR) | Director | Sell | 4,500 | $225,000 |
| 2025-06-03 | Kymera Therapeutics, Inc. (KYMR) | Director | Buy | 12,000 | $332,040 |
| 2025-06-03 | Kymera Therapeutics, Inc. (KYMR) | Director | Sell | 7,200 | $327,600 |
| 2025-06-03 | Kymera Therapeutics, Inc. (KYMR) | Director | Sell | 4,800 | $225,600 |
Source: SEC Form 4 filings · as of 2026-05-11