CELLDEX THERAPEUTICS INC (CLDX) Institutional Ownership Changes & 13F Activity
CELLDEX THERAPEUTICS INC (CLDX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Point72 Asset Management, L.P., Price T Rowe Associates Inc, Deep Track Capital, Lp, Logos Global Management Lp, and Commodore Capital Lp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +11,566 | +14.9% | 89,338 | $3.32M | Q2 2026 | Sep 09, 2026 |
| Corient Private Wealth Llc | Buy | +162,320 | +1109.0% | 176,956 | $6.58M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -1,907 | -2.4% | 77,723 | $2.89M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Buy | +642,171 | +438.3% | 788,696 | $29.35M | Q2 2026 | Aug 21, 2026 |
| Palo Alto Investors Lp | Buy | +103,448 | +34.9% | 399,856 | $14.88M | Q2 2026 | Aug 19, 2026 |
| Mercer Global Advisors Inc | Buy | +6,307 | — | 6,307 | $234.68K | Q2 2026 | Aug 19, 2026 |
| Seven Fleet Capital Management Lp | Buy | +57,364 | +195.8% | 86,664 | $3.22M | Q2 2026 | Aug 17, 2026 |
| Capstone Investment Advisors, Llc | Buy | +11,822 | — | 11,822 | $439.90K | Q2 2026 | Aug 17, 2026 |
| Point72 Asset Management, L.P. | Sell | -3,112,722 | -96.4% | 117,217 | $4.36M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +2,598,891 | +124.6% | 4,685,223 | $174.34M | Q2 2026 | Aug 14, 2026 |
| Deep Track Capital, Lp | Buy | +1,655,172 | +128.9% | 2,939,151 | $109.37M | Q2 2026 | Aug 14, 2026 |
| Logos Global Management Lp | Buy | +1,650,000 | +366.7% | 2,100,000 | $78.14M | Q2 2026 | Aug 14, 2026 |
| Commodore Capital Lp | Sell | -1,346,616 | -49.9% | 1,350,000 | $50.23M | Q2 2026 | Aug 14, 2026 |
| Driehaus Capital Management Llc | Buy | +989,442 | — | 989,442 | $36.82M | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Buy | +983,195 | +11.5% | 9,543,671 | $355.12M | Q2 2026 | Aug 14, 2026 |
| Braidwell Lp | Sell | -919,436 | -67.8% | 436,646 | $16.25M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +626,927 | +63.4% | 1,615,343 | $60.11M | Q2 2026 | Aug 14, 2026 |
| Foresite Capital Management Vi Llc | Buy | +563,800 | +178.5% | 879,713 | $32.73M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +524,220 | +382.6% | 661,235 | $24.60M | Q2 2026 | Aug 14, 2026 |
| Kynam Capital Management, Lp | Sell | -517,659 | -8.9% | 5,322,908 | $198.07M | Q2 2026 | Aug 14, 2026 |
| Baker Bros. Advisors Lp | Buy | +517,241 | +77.7% | 1,182,611 | $44.00M | Q2 2026 | Aug 14, 2026 |
| Woodline Partners Lp | Buy | +200,703 | +40.1% | 700,830 | $26.08M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Buy | +191,726 | +44.8% | 619,542 | $23.05M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +184,524 | — | 184,524 | $6.87M | Q2 2026 | Aug 14, 2026 |
| Novo Holdings A/S | Sell | -175,000 | -14.6% | 1,025,000 | $38.14M | Q2 2026 | Aug 14, 2026 |
| Redmile Group, Llc | Buy | +172,413 | +65.9% | 433,921 | $16.15M | Q2 2026 | Aug 14, 2026 |
| Rosalind Advisors, Inc. | Sell | -130,000 | -39.4% | 200,000 | $7.44M | Q2 2026 | Aug 14, 2026 |
| Elmind Capital, Lp | Buy | +125,000 | +14.5% | 990,000 | $36.84M | Q2 2026 | Aug 14, 2026 |
| Suvretta Capital Management, Llc | Buy | +121,297 | — | 121,297 | $4.51M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +110,468 | +20.3% | 655,954 | $24.41M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about CLDX activity
Which institutional owners are buying CLDX?
Institutional owners buying CLDX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CLDX activity?
"Buy" means an investor increased their reported position in CLDX compared to the prior reporting period. This reflects growing exposure to CELLDEX THERAPEUTICS INC (CLDX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CLDX increasing?
Institutional interest in CLDX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CLDX Institutional Insights
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