Celldex Therapeutics's top three insider shareholders as of September 29, 2026 are Anthony S Marucci (President Ceo, 40.28K shares), Samuel Bates Martin (Svp And Cfo, 32.94K shares), Freddy A. Jimenez (Svp General Counsel, 30.80K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Anthony S Marucci | President Ceo | 40,284 | 0 | 40,284 | 20.6% | 12 Nov, 2024 |
| 2 | Samuel Bates Martin | Svp And Cfo | 32,942 | 0 | 32,942 | 16.8% | 06 Jan, 2026 |
| 3 | Freddy A. Jimenez | Svp General Counsel | 30,796 | 0 | 30,796 | 15.7% | 08 Dec, 2025 |
| 4 | Richard M. Wright | Sr. Vp Cco | 20,833 | 0 | 20,833 | 10.6% | 17 Nov, 2025 |
| 5 | Ronald Pepin | Sr. Vp Cbo | 20,097 | 0 | 20,097 | 10.3% | 17 Dec, 2025 |
| 6 | Diane C. Young | Svp, Chief Medical Officer | 17,115 | 0 | 17,115 | 8.7% | 13 Jun, 2024 |
| 7 | Margo Heath-Chiozzi | Svp Of Regulatory Affairs | 13,383 | 0 | 13,383 | 6.8% | 05 Jun, 2024 |
| 8 | Elizabeth Crowley | Sr. Vp Cpdo | 9,074 | 0 | 9,074 | 4.6% | 18 Jun, 2024 |
| 9 | Tibor Keler | Executive Vp Cso | 7,357 | 0 | 7,357 | 3.8% | 09 Dec, 2022 |
| 10 | James J Marino | Director | 2,204 | 0 | 2,204 | 1.1% | 20 Nov, 2024 |
| 11 | Sarah Cavanaugh | Svp Of Corp Affairs Admin. | 1,860 | 0 | 1,860 | 0.9% | 03 Jun, 2024 |
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 |
|---|---|---|---|---|---|---|---|---|
| 25 Jun, 2026 | Herbert J Conrad | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Tibor Keler | Executive Vp Cso | Acquired A | 115,000 | $0.00 | $0 | 115,000 | Direct |
| 25 Jun, 2026 | Margo Heath-Chiozzi | Svp Of Regulatory Affairs | Acquired A | 95,000 | $0.00 | $0 | 95,000 | Direct |
| 25 Jun, 2026 | Rita Jain | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Harry Jr Penner | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Ronald Pepin | Sr. Vp Cbo | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 25 Jun, 2026 | James J Marino | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Elizabeth Crowley | Sr. Vp Cpdo | Acquired A | 100,000 | $0.00 | $0 | 100,000 | Direct |
| 25 Jun, 2026 | Garry Arthur Neil | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Anthony S Marucci | President Ceo | Acquired A | 375,000 | $0.00 | $0 | 375,000 | Direct |
| 25 Jun, 2026 | Keith L Brownlie | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Cheryl Cohen | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Diane C. Young | Svp, Chief Medical Officer | Acquired A | 57,000 | $0.00 | $0 | 57,000 | Direct |
| 25 Jun, 2026 | Sarah Cavanaugh | Svp Of Corp Affairs Admin. | Acquired A | 95,000 | $0.00 | $0 | 95,000 | Direct |
| 25 Jun, 2026 | Denice Torres | Director | Acquired A | 26,000 | $0.00 | $0 | 26,000 | Direct |
| 25 Jun, 2026 | Freddy A. Jimenez | Svp General Counsel | Acquired A | 93,000 | $0.00 | $0 | 93,000 | Direct |
| 25 Jun, 2026 | Teri L Lawver | Svp Chief Commercial Officer | Acquired A | 90,000 | $0.00 | $0 | 90,000 | Direct |
| 25 Jun, 2026 | Samuel Bates Martin | Svp And Cfo | Acquired A | 93,000 | $0.00 | $0 | 93,000 | Direct |
| 02 Jan, 2026 | Samuel Bates Martin | Svp And Cfo | Acquired M | 4,817 | $10.38 | $50.00K | 32,942 | Direct |
| 02 Jan, 2026 | Samuel Bates Martin | Svp And Cfo | Disposed M | 4,817 | $0.00 | $0 | 58,815 | Direct |