Celldex Therapeutics, Inc. has 18 Schedule 13D or 13G filings on record since 2025-07-10. 5 holders' latest filing reports 5% or more of common stock, par value $0.001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Wellington Management Group LLP | 12.2% | 8,079,608 | SCHEDULE 13G/A, 2026-02-10 | 2025-12-31 |
| Kynam Capital Management, LP | 6.78% | 0 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| T. Rowe Price Associates, Inc. | 6% | 4,686,187 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Fmr LLC | 5.6% | 3,749,048 | SCHEDULE 13G/A, 2026-05-06 | 2026-03-31 |
| Vanguard Capital Management | 5.17% | 3,446,795 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Commodore Capital LP | 4.6% | 3,028,335 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
| State Street Corporation | 4.2% | 2,804,168 | SCHEDULE 13G, 2026-05-12 | 2026-03-31 |
| Point72 Asset Management, L.P. | 2.6% | 1,758,357 | SCHEDULE 13G/A, 2026-03-10 | 2025-12-31 |
| Eventide Asset Management, LLC | 2% | 1,356,186 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Bellevue Group AG | 1.5% | 1,200,000 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-10 | Point72 Asset Management, L.P. | 6.7% | SCHEDULE 13G |
| 2025-08-12 | Wellington Management Group LLP | 7.9% | SCHEDULE 13G/A |
| 2025-08-14 | Eventide Asset Management, LLC | 2% | SCHEDULE 13G/A |
| 2025-11-07 | Wellington Management Group LLP | 11.1% | SCHEDULE 13G/A |
| 2025-11-14 | T. Rowe Price Associates, Inc. | 3.6% | SCHEDULE 13G/A |
| 2025-11-14 | Bellevue Group AG | 5.4% | SCHEDULE 13G |
| 2025-11-14 | Commodore Capital LP | 4.6% | SCHEDULE 13G/A |
| 2026-02-09 | State Street Corporation | 5.1% | SCHEDULE 13G |
| 2026-02-10 | Wellington Management Group LLP | 12.2% | SCHEDULE 13G/A |
| 2026-03-10 | Point72 Asset Management, L.P. | 2.6% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Capital Management | 5.17% | SCHEDULE 13G |
| 2026-05-06 | Fmr LLC | 5.6% | SCHEDULE 13G/A |
| 2026-05-12 | State Street Corporation | 4.2% | SCHEDULE 13G |
| 2026-05-15 | Bellevue Group AG | 1.5% | SCHEDULE 13G/A |
| 2026-05-15 | Kynam Capital Management, LP | 8.77% | SCHEDULE 13G/A |
| 2026-08-14 | T. Rowe Price Associates, Inc. | 6% | SCHEDULE 13G |
| 2026-08-14 | Kynam Capital Management, LP | 6.78% | SCHEDULE 13G/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.