Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CLDX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP | 8.6M | $271.5M | +5.9% | 12.865% | 0.05% |
| 2 | Kynam Capital Management, LP | 5.8M | $185.3M | -1.7% | 8.778% | 11.57% |
| 3 | BlackRock, Inc. | 5.4M | $170.3M | -1.5% | 8.070% | 0.00% |
| 4 | FMR LLC | 3.7M | $118.9M | -23.6% | 5.634% | 0.01% |
| 5 | Point72 Asset Management, L.P. | 3.2M | $102.5M | +83.7% | 4.854% | 0.14% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | $93.9M | β | 4.450% | 0.00% |
| 7 | STATE STREET CORP | 2.8M | $88.9M | -17.5% | 4.214% | 0.00% |
| 8 | COMMODORE CAPITAL LP | 2.7M | $85.5M | +5.1% | 4.053% | 4.95% |
| 9 | Eversept Partners, LP | 1.8M | $56.7M | +24.6% | 2.687% | 3.70% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.7M | $53.6M | +3.7% | 2.537% | 0.00% |
| 11 | BRAIDWELL LP | 1.4M | $43.0M | -27.0% | 2.038% | 1.43% |
| 12 | Deep Track Capital, LP | 1.3M | $40.7M | -32.5% | 1.930% | 0.84% |
| 13 | MILLENNIUM MANAGEMENT LLC | 1.3M | $39.8M | +3.4% | 1.884% | 0.03% |
| 14 | Vestal Point Capital, LP | 1.2M | $38.8M | +5.1% | 1.840% | 1.09% |
| 15 | Novo Holdings A/S | 1.2M | $38.1M | 0.0% | 1.803% | 3.08% |
| 16 | Bellevue Group AG | 1.2M | $38.1M | -66.8% | 1.803% | 0.91% |
| 17 | DIMENSIONAL FUND ADVISORS LP | 1.1M | $33.6M | +62.6% | 1.592% | 0.01% |
| 18 | EVENTIDE ASSET MANAGEMENT, LLC | 1.0M | $32.9M | -36.9% | 1.558% | 0.54% |
| 19 | Fisher Asset Management, LLC | 1.0M | $32.2M | +8.2% | 1.523% | 0.01% |
| 20 | GOLDMAN SACHS GROUP INC | 988K | $31.4M | -7.5% | 1.486% | 0.00% |
| 21 | Pictet Asset Management Holding SA | 924K | $29.3M | -4.6% | 1.388% | 0.03% |
| 22 | Elmind Capital, LP | 865K | $27.4M | 0.0% | 1.300% | 7.79% |
| 23 | AMERICAN CENTURY COMPANIES INC | 856K | $27.2M | +0.1% | 1.287% | 0.01% |
| 24 | BANK OF AMERICA CORP /DE/ | 709K | $22.5M | +70.8% | 1.065% | 0.00% |
| 25 | BAKER BROS. ADVISORS LP | 665K | $21.1M | 0.0% | 1.000% | 0.12% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in CLDX β a direct measure of their conviction.
Filings activity in CLDX during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new CLDX position in Q1 2026
Institutions that fully closed their CLDX position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 224 | +20% | 107.17% | +14.64 pp | $2.23B | +16% |
| Q4 2025 | 186 | +4.5% | 92.53% | +7.64 pp | $1.93B | +9.0% |
| Q3 2025 | 178 | 1.1% | 84.89% | +17.90 pp | $1.77B | +27% |
| Q2 2025 | 180 | +5.3% | 66.99% | +6.86 pp | $1.39B | +11% |
| Q1 2025 | 171 | 2.8% | 60.13% | 22.36 pp | $1.25B | 27% |
| Q4 2024 | 176 | 0.6% | 82.49% | 26.57 pp | $1.72B | 24% |
| Q3 2024 | 177 | 1.1% | 109.06% | 10.65 pp | $2.27B | 8.9% |
| Q2 2024 | 179 | β | 119.71% | β | $2.49B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CLDX stock.
Based on Q1 2026 13F filings, institutional ownership of Celldex Therapeutics, Inc. stands at 107.2%, held across 224 reporting institutions.
WELLINGTON MANAGEMENT GROUP LLP is the largest reported institutional holder of CLDX, with approximately 8,560,476 shares worth $0.27B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of CLDX, including Point72 Asset Management, L.P., MILLENNIUM MANAGEMENT LLC, Fisher Asset Management, LLC.
Our composite Smart Money Score for CLDX is 83 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
56 institutions opened new positions in CLDX during Q1 2026, while 18 fully exited. 130 added to existing positions and 33 trimmed.
CLDX institutional ownership rose by 14.64 percentage points quarter-over-quarter, with a net change of +38 holders.
The top 10 institutions account for 55.0% of all reported 13F value in CLDX, and the top 25 account for 77.3%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Celldex Therapeutics, Inc. (CLDX) Institutional Ownership