Celcuity's three largest insider shareholders as of September 29, 2026 are Bros. Advisors Lp Baker (Other, 4.37Mn shares), Brian F. Sullivan (Chief Executive Officer, 1.75Mn shares), Brian F. Sullivan (Chief Executive Officer, 1.45Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Bros. Advisors Lp Baker | Other | 0 | 4,372,852 | 4,372,852 | 60.4% | 16 Jul, 2026 |
| 2 | Brian F. Sullivan | Chief Executive Officer | 1,450,199 | 0 | 1,450,199 | 20.0% | 18 Aug, 2026 |
| 3 | Lance G. Laing | Chief Science Officer | 1,271,000 | 0 | 1,271,000 | 17.6% | 18 Aug, 2026 |
| 4 | Richard Nigon | Director | 80,565 | 0 | 80,565 | 1.1% | 09 Jun, 2026 |
| 5 | Vicky Hahne | Chief Financial Officer | 37,808 | 0 | 37,808 | 0.5% | 18 Aug, 2026 |
| 6 | Leo Furcht | Director | 12,530 | 0 | 12,530 | 0.2% | 09 Jun, 2026 |
| 7 | Polly A. Murphy | Director | 6,530 | 0 | 6,530 | 0.1% | 09 Jun, 2026 |
| 8 | Charles R Romp | Director | 1,745 | 0 | 1,745 | 0.0% | 09 Jun, 2026 |
| 9 | Richard E Buller | Director | 1,530 | 0 | 1,530 | 0.0% | 09 Jun, 2026 |
| 10 | David Dalvey | Director | 1,530 | 0 | 1,530 | 0.0% | 09 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Vicky Hahne | Chief Financial Officer | Acquired A | 16,000 | $0.00 | $0 | 37,808 | Direct |
| 14 Aug, 2026 | Brian F. Sullivan | Chief Executive Officer | Acquired A | 80,000 | $0.00 | $0 | 1,450,199 | Direct |
| 14 Aug, 2026 | Lance G. Laing | Chief Science Officer | Acquired A | 20,000 | $0.00 | $0 | 1,271,000 | Direct |
| 14 Aug, 2026 | Lance G. Laing | Chief Science Officer | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 14 Aug, 2026 | Vicky Hahne | Chief Financial Officer | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 14 Aug, 2026 | Brian F. Sullivan | Chief Executive Officer | Acquired A | 120,000 | $0.00 | $0 | 120,000 | Direct |
| 14 Jul, 2026 | Bros. Advisors Lp Baker | Other | Disposed S | 261,368 | $102.50 | $26.79Mn | 442,940 | Indirect |
| 14 Jul, 2026 | Bros. Advisors Lp Baker | Other | Disposed S | 2,838,632 | $102.50 | $290.96Mn | 4,372,852 | Indirect |
| 10 Jun, 2026 | Polly A. Murphy | Director | Disposed G | 14,048 | $0.00 | $0 | 0 | Direct |
| 10 Jun, 2026 | Richard E Buller | Director | Disposed G | 12,503 | $0.00 | $0 | 0 | Direct |
| 10 Jun, 2026 | Polly A. Murphy | Director | Acquired G | 14,048 | $0.00 | $0 | 14,048 | Indirect |
| 10 Jun, 2026 | Richard E Buller | Director | Acquired G | 12,503 | $0.00 | $0 | 12,503 | Indirect |
| 05 Jun, 2026 | Polly A. Murphy | Director | Acquired A | 1,530 | $0.00 | $0 | 6,530 | Direct |
| 05 Jun, 2026 | David Dalvey | Director | Acquired A | 1,530 | $0.00 | $0 | 1,530 | Direct |
| 05 Jun, 2026 | Richard Nigon | Director | Acquired A | 1,530 | $0.00 | $0 | 80,565 | Direct |
| 05 Jun, 2026 | Charles R Romp | Director | Acquired A | 1,530 | $0.00 | $0 | 1,745 | Direct |
| 05 Jun, 2026 | Richard E Buller | Director | Acquired A | 1,530 | $0.00 | $0 | 1,530 | Direct |
| 05 Jun, 2026 | Leo Furcht | Director | Acquired A | 1,530 | $0.00 | $0 | 12,530 | Direct |
| 02 Jun, 2026 | Lance G. Laing | Chief Science Officer | Acquired M | 1,000 | $9.89 | $9.89K | 1,251,000 | Direct |
| 02 Jun, 2026 | Lance G. Laing | Chief Science Officer | Disposed M | 1,000 | $0.00 | $0 | 20,250 | Direct |