Celldex Therapeutics (CLDX)
Develops KIT and bispecific antibodies for mast-cell-driven inflammatory diseases.
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13F · 13D/G · Form 4
| Institutions | ≈ 126.77% | 84.35M shares | |
|---|---|---|---|
| 270 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 0.22% | 147.2K shares | |
| 6 holders · as of Jan 6, 2026 | |||
| Adds to | 126.99% | ||
66.54M company shares as of Aug 27, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
Two share counts disagree (78.53M in the company's Sep 23, 2026 report, 66.54M elsewhere); stakes use the report.
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 126.99%; nothing is left for Other.
13F, as of Jun 30, 2026
270 holders · 84.35M shares · 53 new positions · 159 increased · 59 reduced · 22 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Wellington Management Group LLP | 9.54M | 14.34% | +983.2K | Aug 14, 2026 |
| BlackRock, Inc. | 7.00M | 10.52% | +1.63M | Aug 7, 2026 |
| Kynam Capital Management, LP | 5.32M | 8.00% | −517.7K | Aug 14, 2026 |
| Price T Rowe Associates Inc /MD/ | 4.69M | 7.04% | +2.60M | Aug 14, 2026 |
| State Street Corp | 3.90M | 5.86% | +1.10M | Aug 7, 2026 |
| FMR LLC | 3.72M | 5.60% | −26.2K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 3.46M | 5.21% | +503.9K | Aug 13, 2026 |
| Deep Track Capital, LP | 2.94M | 4.42% | +1.66M | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Wellington Management Group LLP | 12.20% | 8.08M | 13G | Feb 10, 2026 |
| Kynam Capital Management, LP | 8.77% | 0 | 13G | May 15, 2026 |
| BlackRock, Inc. | 7.30% | 4.82M | 13G | Apr 17, 2025 |
| T. Rowe Price Associates, Inc. | 6.00% | 4.69M | 13G | Aug 14, 2026 |
| FMR LLC | 5.60% | 3.75M | 13G | May 6, 2026 |
| Vanguard Capital Management | 5.17% | 3.45M | 13G | Apr 29, 2026 |
| Commodore Capital LP | 5.00% | 3.35M | 13G | Apr 10, 2025 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Dec 4, 2025 | Freddy A. Jimenezofficer: SVP & GENERAL COUNSEL | Sale | 4,166 | $29.10 | 30,796 |
| Nov 13, 2025 | Richard M. Wrightother: Former Officer | Sale | 49,298 | $24.00 | 20,833 |
House and Senate disclosures
Not reported.