Buller Richard E (CIK 1688319) reported 18 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-09). Recent activity: Buy CELC (1,530 shares), Sell CELC (1,029 shares), Buy CELC (1,029 shares), Buy CELC (3,000 shares), Sell CELC (2,325 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-09 | Celcuity Inc. (CELC) | Director | Buy | 1,530 | $0 |
| 2026-05-20 | Celcuity Inc. (CELC) | Director | Sell | 1,029 | $0 |
| 2026-05-20 | Celcuity Inc. (CELC) | Director | Buy | 1,029 | $0 |
| 2026-04-02 | Celcuity Inc. (CELC) | Director | Buy | 3,000 | $15,300 |
| 2026-04-02 | Celcuity Inc. (CELC) | Director | Sell | 2,325 | $255,996 |
| 2026-04-02 | Celcuity Inc. (CELC) | Director | Sell | 675 | $74,808 |
| 2025-12-09 | Celcuity Inc. (CELC) | Director | Buy | 3,000 | $16,500 |
| 2025-12-09 | Celcuity Inc. (CELC) | Director | Sell | 1,490 | $156,957 |
| 2025-12-09 | Celcuity Inc. (CELC) | Director | Sell | 1,510 | $160,120 |
| 2025-12-03 | Celcuity Inc. (CELC) | Director | Buy | 1,100 | $16,313 |
| 2025-12-03 | Celcuity Inc. (CELC) | Director | Sell | 1,100 | $107,943 |
| 2025-12-03 | Celcuity Inc. (CELC) | Director | Sell | 500 | $0 |
| 2025-11-21 | Celcuity Inc. (CELC) | Director | Sell | 500 | $0 |
| 2025-11-21 | Celcuity Inc. (CELC) | Director | Buy | 3,900 | $57,837 |
| 2025-11-21 | Celcuity Inc. (CELC) | Director | Sell | 3,900 | $377,247 |
| 2025-05-29 | Celcuity Inc. (CELC) | Director | Sell | 1,079 | $0 |
| 2025-05-29 | Celcuity Inc. (CELC) | Director | Buy | 1,079 | $0 |
| 2025-05-21 | Celcuity Inc. (CELC) | Director | Buy | 1,029 | $0 |
Source: SEC Form 4 filings · as of 2026-06-09