Celcuity's three largest insider shareholders as of April 28, 2026 are Bros. Advisors Lp Baker (TenPercentOwner, 7.21Mn shares), Brian F. Sullivan (Chief Executive Officer, 1.75Mn shares), Brian F. Sullivan (Chief Executive Officer, 1.37Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Bros. Advisors Lp Baker | - | 0 | 7,211,484 | 10 Sep, 2025 |
| Brian F. Sullivan | Chief Executive Officer | 0 | 1,750,784 | 05 Mar, 2025 |
| Brian F. Sullivan | Chief Executive Officer | 1,370,199 | 0 | 04 Sep, 2025 |
| David Dalvey | - | 0 | 90,000 | 29 Jan, 2026 |
| Richard Nigon | - | 79,035 | 0 | 13 Apr, 2026 |
| Leo Furcht | - | 11,000 | 0 | 08 Dec, 2025 |
| Leo Furcht | - | 11,000 | 0 | 08 Dec, 2025 |
| Richard E Buller | - | 0 | 6,760 | 02 Apr, 2026 |
| Polly A. Murphy | - | 5,000 | 0 | 23 Nov, 2022 |
| Polly A. Murphy | - | 5,000 | 0 | 23 Nov, 2022 |
| Richard E Buller | - | 1,029 | 0 | 29 May, 2025 |
| Charles R Romp | - | 215 | 0 | 13 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Apr, 2026 | Richard Nigon | Common Stock | D | 10,000 | $0.00 | 79,035 | D | G |
| 31 Mar, 2026 | Richard E Buller | Common Stock | A | 3,000 | $5.10 | 9,760 | I | M |
| 31 Mar, 2026 | Richard E Buller | Common Stock | D | 2,325 | $110.11 | 7,435 | I | S |
| 31 Mar, 2026 | Richard E Buller | Common Stock | D | 675 | $110.83 | 6,760 | I | S |
| 31 Mar, 2026 | Richard E Buller | Stock Option (right to buy) | D | 3,000 | $0.00 | 9,654 | I | M |
| 11 Feb, 2026 | Charles R Romp | Common Stock | A | 215 | $0.00 | 215 | D | A |
| 27 Jan, 2026 | David Dalvey | Common Stock | D | 20,000 | $120.03 | 90,000 | I | S |
| 15 Dec, 2025 | Richard Nigon | Common Stock | D | 19,975 | $0.00 | 89,035 | D | G |
| 05 Dec, 2025 | Richard E Buller | Common Stock | A | 3,000 | $5.50 | 9,760 | I | M |
| 05 Dec, 2025 | Richard E Buller | Common Stock | D | 1,490 | $105.34 | 8,270 | I | S |
| 05 Dec, 2025 | Richard E Buller | Common Stock | D | 1,510 | $106.04 | 6,760 | I | S |
| 05 Dec, 2025 | Richard E Buller | Stock Option (right to buy) | D | 3,000 | $0.00 | 1,555 | I | M |
| 04 Dec, 2025 | Leo Furcht | Common Stock | A | 250 | $7.60 | 11,000 | D | M |
| 04 Dec, 2025 | Leo Furcht | Common Stock | A | 250 | $7.60 | 11,000 | D | M |
| 04 Dec, 2025 | Leo Furcht | Stock Option (right to buy) | D | 250 | $0.00 | 0 | D | M |
| 04 Dec, 2025 | Leo Furcht | Stock Option (right to buy) | D | 250 | $0.00 | 0 | D | M |
| 01 Dec, 2025 | Richard E Buller | Common Stock | A | 1,100 | $14.83 | 8,360 | I | M |
| 01 Dec, 2025 | Richard E Buller | Common Stock | D | 1,100 | $98.13 | 7,260 | I | S |
| 02 Dec, 2025 | Richard E Buller | Common Stock | D | 500 | $0.00 | 6,760 | I | G |
| 01 Dec, 2025 | Richard E Buller | Stock Option (right to buy) | D | 1,100 | $0.00 | 1,522 | I | M |