CLDX · Insider trading · 13F holders · Congress trades
Celldex Therapeutics Inc New (CLDX)
Who is buying and selling CLDX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 34
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
CLDX at a glance
- No open-market insider purchases or sales of CLDX were filed in the last 90 days.
- 34 13F filers hold CLDX among their 50 largest positions, worth $947.2M combined, including Julian and Felix Baker. The biggest bets by portfolio weight are Kynam Capital Management, LP (10.9%), Elmind Capital, LP (9.3%) and Superstring Capital Management LP (6.8%). In their latest 13Fs, 0 managers opened a new position and 13 added to one.
- No member of Congress has disclosed a trade in CLDX.
CLDX insider trading
No open-market insider purchases or sales of CLDX were filed in the last 90 days.
Who owns CLDX? Hedge funds and superinvestors
34 13F filers hold CLDX among their 50 largest positions, worth $947.2M combined, including Julian and Felix Baker. The biggest bets by portfolio weight are Kynam Capital Management, LP (10.9%), Elmind Capital, LP (9.3%) and Superstring Capital Management LP (6.8%). In their latest 13Fs, 0 managers opened a new position and 13 added to one.
Superinvestors holding CLDX: Julian and Felix Baker 0.2%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Kynam Capital Management, LPHedge fund | 10.9% | $198.1M | 5,322,908 | -8.9% shares | Q2 2026 |
| Deep Track Capital, LPHedge fund | 1.6% | $109.4M | 2,939,151 | +128.9% shares | Q2 2026 |
| Logos Global Management LPHedge fund | 3.4% | $78.1M | 2,100,000 | +366.7% shares | Q2 2026 |
| Eversept Partners, LPHedge fund | 3.6% | $66.5M | 1,785,941 | -0.1% shares | Q2 2026 |
| Commodore Capital LPHedge fund | 3.0% | $50.2M | 1,350,000 | -49.9% shares | Q2 2026 |
| Bellevue Group AGInvestment manager | 0.9% | $44.7M | 1,200,000 | +0.0% shares | Q2 2026 |
| Julian and Felix BakerHedge fund | 0.2% | $44.0M | 1,182,611 | — | Q2 2026 |
| Novo Holdings A/sInvestment manager | 2.2% | $38.1M | 1,025,000 | -14.6% shares | Q2 2026 |
| Elmind Capital, LPHedge fund | 9.3% | $36.8M | 990,000 | +14.5% shares | Q2 2026 |
| Foresite Capital Management VI LLCHedge fund | 5.1% | $32.7M | 879,713 | +178.5% shares | Q2 2026 |
| Affinity Asset Advisors, LLCHedge fund | 1.3% | $26.0M | 700,000 | +40.0% shares | Q2 2026 |
| Rock Springs Capital Management LPHedge fund | 1.3% | $26.0M | 699,146 | +7.5% shares | Q2 2026 |
| ADAR1 Capital Management, LLCHedge fund | 1.1% | $23.1M | 619,542 | +44.8% shares | Q2 2026 |
| 5AM Venture Management, LLCVenture capital | 6.4% | $18.5M | 497,270 | +0.0% shares | Q2 2026 |
| Ikarian Capital, LLCHedge fund | 2.9% | $17.8M | 478,500 | +3.7% shares | Q2 2026 |
| Redmile Group, LLCHedge fund | 1.1% | $16.1M | 433,921 | +65.9% shares | Q2 2026 |
| Palo Alto Investors LPHedge fund | 2.1% | $14.9M | 399,856 | +34.9% shares | Q2 2026 |
| PFM Health Sciences, LPHedge fund | 1.1% | $12.8M | 342,751 | +5.5% shares | Q2 2026 |
| TSP Capital Management Group, LLCWealth manager | 3.0% | $12.0M | 371,127 | +0.0% shares | Q3 2026 |
| Tetragon Partners GP LtdHedge fund | 1.8% | $10.8M | 290,441 | -7.0% shares | Q2 2026 |
| Superstring Capital Management LPHedge fund | 6.8% | $10.7M | 287,583 | +59.7% shares | Q2 2026 |
| GordonMD Global Investments LPHedge fund | 5.0% | $10.4M | 279,720 | +64.2% shares | Q2 2026 |
| Sphera Funds Management Ltd.Hedge fund | 1.3% | $9.0M | 240,868 | -1.1% shares | Q2 2026 |
| Rosalind Advisors, Inc.Investment manager | 2.8% | $7.4M | 200,000 | -39.4% shares | Q2 2026 |
| Stempoint Capital LPHedge fund | 1.1% | $6.6M | 178,412 | -29.8% shares | Q2 2026 |
| Mirador Capital Partners LPWealth manager | 0.7% | $6.3M | 193,267 | +6.7% shares | Q3 2026 |
| Propel Bio Management, LLCHedge fund | 2.0% | $3.9M | 103,695 | -21.1% shares | Q2 2026 |
| Odyssean, LLCAsset manager | 0.6% | $3.5M | 95,069 | — | Q2 2026 |
| HighVista Strategies LLCHedge fund | 0.7% | $3.2M | 86,964 | -2.7% shares | Q2 2026 |
| Seven Fleet Capital Management LPHedge fund | 0.5% | $3.2M | 86,664 | — | Q2 2026 |
The 30 largest of 34 positions, by value. Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 31). Screen CLDX in the grand portfolio →
CLDX stock trades by members of Congress
No member of Congress has disclosed a trade in CLDX.
CLDX questions and answers
Are insiders buying CLDX stock?
No open-market insider purchases or sales of CLDX were filed in the last 90 days.
Which hedge funds own CLDX?
34 13F filers hold CLDX among their 50 largest positions, worth $947.2M combined, including Julian and Felix Baker. The biggest bets by portfolio weight are Kynam Capital Management, LP (10.9%), Elmind Capital, LP (9.3%) and Superstring Capital Management LP (6.8%). In their latest 13Fs, 0 managers opened a new position and 13 added to one.
Has Congress traded CLDX?
No member of Congress has disclosed a trade in CLDX.
Who is the largest holder of CLDX?
Among 13F filers, Kynam Capital Management, LP reports the largest CLDX position, $198.1M (5,322,908 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Kynam Capital Management, LP's: 10.9% of its portfolio.
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