Who owns Celldex Therapeutics, Inc.?
Institutional ownership of CLDX from SEC Form 13F filings across 167 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
167
13F holders
$1.66B
value, 2026 filers
74.4%
of shares outstanding (49.5M sh)
33
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of CLDX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP | 9.5M | $355.1M | 0.1% | 14.3% | +11.5% |
| 2 | BlackRock, Inc. | 7.0M | $260.6M | 0.0% | 10.5% | +30.4% |
| 3 | PRICE T ROWE ASSOCIATES INC /MD/ | 4.7M | $174,338 | 0.0% | 7% | +124.6% |
| 4 | FMR LLC | 3.7M | $138.5M | 0.0% | 5.6% | -0.7% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | $128.9M | 0.0% | 5.2% | -41.5% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $75.3M | 0.0% | 3% | +19.8% |
| 7 | GOLDMAN SACHS GROUP INC | 1.6M | $60.1M | 0.0% | 2.4% | +63.4% |
| 8 | MILLENNIUM MANAGEMENT LLC | 1.2M | $43.6M | 0.0% | 1.8% | -6.6% |
| 9 | AMERICAN CENTURY COMPANIES INC | 1.0M | $38.8M | 0.0% | 1.6% | +21.7% |
| 10 | Fisher Asset Management, LLC | 985,677 | $36.7M | 0.0% | 1.5% | -2.8% |
| 11 | Pictet Asset Management Holding SA | 917,408 | $34.1M | 0.0% | 1.4% | -0.7% |
| 12 | VANGUARD PORTFOLIO MANAGEMENT LLC | 863,536 | $32.1M | 0.0% | 1.3% | +37.2% |
| 13 | Assenagon Asset Management S.A. | 788,696 | $29.3M | 0.0% | 1.2% | +438.3% |
| 14 | NORTHERN TRUST CORP | 719,647 | $26.8M | 0.0% | 1.1% | +24.7% |
| 15 | Woodline Partners LP | 700,830 | $26.1M | 0.1% | 1.1% | -29.9% |
| 16 | TWO SIGMA INVESTMENTS, LP | 661,235 | $24.6M | 0.0% | 1% | +382.6% |
| 17 | Sixth Street Partners Management Company, L.P.NEW | 655,954 | $24.4M | 4.2% | 1% | new |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 655,954 | $24.4M | 0.0% | 1% | +20.3% |
| 19 | BANK OF AMERICA CORP /DE/ | 607,195 | $22.6M | 0.0% | 0.9% | -14.3% |
| 20 | Nuveen, LLC | 568,460 | $21.2M | 0.0% | 0.9% | +181.5% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 552,973 | $20.6M | 0.0% | 0.8% | +28.7% |
| 22 | FEDERATED HERMES, INC.NEW | 492,893 | $18.3M | 0.0% | 0.7% | new |
| 23 | UBS Group AG | 481,997 | $17.9M | 0.0% | 0.7% | +62.3% |
| 24 | Candriam S.C.A. | 481,125 | $17.9M | 0.1% | 0.7% | +72.5% |
| 25 | CITIGROUP INC | 404,703 | $15.1M | 0.0% | 0.6% | +86.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.