CELLDEX THERAPEUTICS INC NEW CLDX
COM NEW · Common Stock · CUSIP 15117B202 · ISIN US15117B2025
American biopharmaceutical company
- SectorHealth care
- IndustryIn Vitro & In Vivo Diagnostic Substances
- HeadquartersHampton, NJ
- Founded1983
- Websitecelldex.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.1m this quarter). Holder counts are more reliable. Shares outstanding: 65.9m as of 2024-04-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $41.97. Options: 8 managers hold calls ($9.8m notional), 10 hold puts ($24.4m).
Trends to Q1 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 161 |
| Q4 2022 | 168 |
| Q1 2023 | 163 |
| Q2 2023 | 152 |
| Q3 2023 | 146 |
| Q4 2023 | 166 |
| Q1 2024 | 199 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 74 | 75 |
| Q1 2023 | 73 | 80 |
| Q2 2023 | 76 | 72 |
| Q3 2023 | 74 | 63 |
| Q4 2023 | 92 | 55 |
| Q1 2024 | 123 | 57 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $4.2m | $4.9m | 1.17 |
| Q3 2023 | $17.2m | $16.9m | 0.98 |
| Q4 2023 | $20.5m | $28.8m | 1.41 |
| Q1 2024 | $9.8m | $24.4m | 2.48 |
Biggest buyers
| FMR LLC | Added | +2.7m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +2.7m |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.2m |
| BlackRock Inc. | Added | +836.2k |
| JENNISON ASSOCIATES LLC | Added | +668.0k |
| Logos Global Management LP | New | +650.0k |
| EcoR1 Capital, LLC | New | +650.0k |
| VANGUARD GROUP INC | Added | +604.3k |
| STATE STREET CORP | Added | +602.4k |
| D. E. Shaw & Co., Inc. | Added | +549.4k |
Biggest sellers
| RTW INVESTMENTS, LP | Sold out | -3.5m |
| Point72 Asset Management, L.P. | Reduced | -1.5m |
| Pictet Asset Management Holding SA | Reduced | -730.5k |
| Octagon Capital Advisors LP | Sold out | -707.5k |
| EVENTIDE ASSET MANAGEMENT, LLC | Reduced | -510.9k |
| MARSHALL WACE, LLP | Reduced | -381.3k |
| MORGAN STANLEY | Reduced | -188.4k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -187.0k |
| Walleye Capital LLC | Reduced | -168.2k |
| AXA S.A. | Reduced | -142.1k |
Biggest calls
| Caption Management, LLC | Reduced | $3.4m80.0k shares |
| JANE STREET GROUP, LLC | Added | $2.3m54.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.2m51.9k shares |
| CITADEL ADVISORS LLC | Reduced | $1.2m28.6k shares |
| GROUP ONE TRADING LLC | Reduced | $381.9k9.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $289.0k6.9k shares |
| Walleye Capital LLC | Reduced | $130.1k3.1k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| JANE STREET GROUP, LLC | Added | $11.0m263.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.4m151.8k shares |
| SIMPLEX TRADING, LLC | Added | $2.5m58.5k shares |
| CITADEL ADVISORS LLC | Reduced | $1.3m31.3k shares |
| GOLDMAN SACHS GROUP INC | Unchanged | $1.1m25.2k shares |
| J. Goldman & Co LP | New | $847.8k20.2k shares |
| JPMORGAN CHASE & CO | New | $738.7k17.6k shares |
| GROUP ONE TRADING LLC | Reduced | $516.2k12.3k shares |
| Walleye Capital LLC | Reduced | $63.0k1.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| WELLINGTON MANAGEMENT GROUP LLP 13G · institution +1.1 pts · filed 2026-02-10 | 12.2% |
| FMR LLC 13G · institution +5.1 pts · filed 2026-10-07 | 10.7% |
| BlackRock, Inc. 13G · institution -1.0 pts · filed 2025-04-17 | 7.3% |
| Kynam Capital Management, LP 13G · institution -2.0 pts · filed 2026-08-14 | 6.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution +2.4 pts · filed 2026-08-14 | 6.0% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
Fell to 5% or below in the last year: Bellevue Group AG (1.5%, 2026-05-15), STATE STREET CORP (4.2%, 2026-05-12), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Point72 Asset Management, L.P. (2.6%, 2026-03-10)
Insider purchases and sales in Q1 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 5 | $7.7m | — |
| Q4 2022 | 0 | — | 1 | $622.6k | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
None reported in Q1 2024.
Holders, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.03% of their portfolio | 9.7m $408.2m | Added +2.7m |
| WELLINGTON MANAGEMENT GROUP LLP 0.06% of their portfolio | 7.6m $321.0m | Added +1.2m |
| BlackRock Inc. 0.00% of their portfolio | 4.5m $189.4m | Added +836.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.7m $153.2m | Added +604.3k |
| EVENTIDE ASSET MANAGEMENT, LLC 2.05% of their portfolio | 3.1m $130.9m | Reduced -510.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 3.1m $129.6m | Added +2.7m |
| Polar Capital Holdings Plc 0.67% of their portfolio | 3.1m $128.4m | Reduced -76.4k |
| STATE STREET CORP 0.01% of their portfolio | 3.0m $125.1m | Added +602.4k |
| Kynam Capital Management, LP 13.54% of their portfolio | 2.9m $121.7m | Reduced -105.9k |
| Bellevue Group AG 1.79% of their portfolio | 2.8m $117.4m | Added +380.3k |
| Pictet Asset Management Holding SA 0.07% of their portfolio | 1.5m $62.7m | Reduced -730.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.4m $59.4m | Added +296.4k |
| Rock Springs Capital Management LP 1.46% of their portfolio | 1.4m $57.6m | Added +402.5k |
| Point72 Asset Management, L.P. 0.16% of their portfolio | 1.3m $53.9m | Reduced -1.5m |
| MORGAN STANLEY 0.00% of their portfolio | 1.1m $47.4m | Reduced -188.4k |
| MARSHALL WACE, LLP 0.06% of their portfolio | 898.8k $37.7m | Reduced -381.3k |
| Redmile Group, LLC 1.38% of their portfolio | 896.5k $37.6m | Reduced -97.3k |
| Commodore Capital LP 2.43% of their portfolio | 866.5k $36.4m | Added +164.5k |
| Sofinnova Investments, Inc. 1.99% of their portfolio | 801.8k $33.7m | Reduced -42.2k |
| Woodline Partners LP 0.29% of their portfolio | 751.1k $31.5m | Added +363.4k |
| Eversept Partners, LP 2.23% of their portfolio | 711.1k $29.8m | Reduced -43.0k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 688.1k $28.9m | Added +668.0k |
| EcoR1 Capital, LLC 0.69% of their portfolio | 650.0k $27.3m | New |
| Logos Global Management LP 2.87% of their portfolio | 650.0k $27.3m | New |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 573.2k $24.1m | Added +549.4k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 564.8k $23.7m | Added +127.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 553.9k $23.2m | Added +109.1k |
| Affinity Asset Advisors, LLC 3.48% of their portfolio | 510.0k $21.4m | Added +110.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 499.2k $21.0m | Added +89.8k |
| 5AM Venture Management, LLC 4.67% of their portfolio | 497.3k $20.9m | Unchanged |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 369.1k $15.5m | Added +247.9k |
| Candriam S.C.A. 0.09% of their portfolio | 317.5k $13.3m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 312.5k $13.1m | New |
| SILVERARC CAPITAL MANAGEMENT, LLC 3.52% of their portfolio | 299.3k $12.6m | Added +52.1k |
| SPHERA FUNDS MANAGEMENT LTD. 1.88% of their portfolio | 277.0k $11.6m | Reduced -38.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 271.6k $11.4m | Added +53.8k |
| UBS Group AG 0.00% of their portfolio | 256.3k $10.8m | Added +98.3k |
| Artal Group S.A. 0.27% of their portfolio | 253.0k $10.6m | New |
| TSP Capital Management Group, LLC 3.37% of their portfolio | 249.2k $10.5m | Reduced -2.3k |
| Laurion Capital Management LP 0.29% of their portfolio | 248.8k $10.4m | Added +110.3k |
| BAKER BROS. ADVISORS LP 0.13% of their portfolio | 247.6k $10.4m | Unchanged |
| TD Asset Management Inc 0.01% of their portfolio | 225.5k $9.5m | Added +173.2k |
| Invesco Ltd. 0.00% of their portfolio | 214.3k $9.0m | Reduced -43.2k |
| NATIXIS 0.05% of their portfolio | 213.9k $9.0m | New |
| EMERALD ADVISERS, LLC 0.36% of their portfolio | 212.0k $8.9m | New |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 208.3k $8.7m | Added +197.3k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 206.2k $8.7m | Added +161.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 200.8k $8.4m | Added +31.7k |
| LMR Partners LLP 0.21% of their portfolio | 200.0k $8.4m | New |
| Rafferty Asset Management, LLC 0.03% of their portfolio | 191.4k $8.0m | Added +43.4k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 182.1k $7.6m | Added +21.0k |
| CITIGROUP INC 0.01% of their portfolio | 181.0k $7.6m | Added +118.6k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 178.4k $7.5m | Reduced -1.2k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 176.9k $7.4m | Added +48.7k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 151.4k $6.4m | New |
| AXA S.A. 0.02% of their portfolio | 142.2k $6.0m | Reduced -142.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 129.5k $5.4m | Added +86.1k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.28% of their portfolio | 127.0k $5.3m | New |
| Fisher Asset Management, LLC 0.00% of their portfolio | 123.8k $5.2m | Added +102.0k |
| NISA INVESTMENT ADVISORS, LLC 0.03% of their portfolio | 121.6k $5.1m | Added +121.0k |
| Swiss National Bank 0.00% of their portfolio | 114.3k $4.8m | Added +17.3k |
| ACUTA CAPITAL PARTNERS, LLC 2.97% of their portfolio | 109.0k $4.6m | Added +39.6k |
| Squarepoint Ops LLC 0.02% of their portfolio | 108.5k $4.6m | Added +90.9k |
| Mirador Capital Partners LP 0.84% of their portfolio | 104.8k $4.4m | Reduced -3.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 98.5k $4.1m | Added +22.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 93.5k $3.9m | Reduced -57.4k |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 90.9k $3.8m | New |
| Trexquant Investment LP 0.07% of their portfolio | 88.0k $3.7m | Added +56.6k |
| Monashee Investment Management LLC 0.43% of their portfolio | 87.5k $3.7m | Reduced -12.7k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 85.4k $3.6m | Reduced -40.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 71.2k $3.0m | Added +22.3k |
| Exome Asset Management LLC 2.56% of their portfolio | 71.1k $3.0m | Reduced -40.2k |
| Informed Momentum Co LLC 0.46% of their portfolio | 70.1k $2.9m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 69.9k $2.9m | Added +58.3k |
| Crestline Management, L.P. 0.28% of their portfolio | 69.3k $2.9m | Added +2.0k |
| Cinctive Capital Management LP 0.15% of their portfolio | 68.5k $2.9m | New |
| Cubist Systematic Strategies, LLC 0.03% of their portfolio | 67.4k $2.8m | New |
| TUDOR INVESTMENT CORP ET AL 0.03% of their portfolio | 67.4k $2.8m | Added +52.8k |
| BARCLAYS PLC 0.00% of their portfolio | 66.7k $2.8m | Reduced -79.2k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 64.8k $2.7m | Added +40.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 61.7k $2.6m | Added +7.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 58.4k $2.5m | Added +6.9k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 57.8k $2.4m | New |
| Legal & General Group Plc 0.00% of their portfolio | 56.4k $2.4m | Added +4.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 56.0k $2.4m | Reduced -80.6k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 51.1k $2.1m | Added +3.1k |
| READYSTATE ASSET MANAGEMENT LP 0.07% of their portfolio | 49.5k $2.1m | New |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 48.1k $2.0m | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 45.9k $1.9m | Added +9.6k |
| ALPS ADVISORS INC 0.01% of their portfolio | 45.4k $1.9m | Added +7.8k |
| Atom Investors LP 0.24% of their portfolio | 45.1k $1.9m | Added +4.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 43.4k $1.8m | Reduced -187.0k |
| ALGERT GLOBAL LLC 0.07% of their portfolio | 43.0k $1.8m | Added +33.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 38.7k $1.6m | Added +3.8k |
| AlphaCentric Advisors LLC 0.97% of their portfolio | 38.5k $1.6m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 36.2k $1.5m | Reduced -4.3k |
| PFM Health Sciences, LP 0.07% of their portfolio | 35.0k $1.5m | Unchanged |
| KENNEDY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 33.6k $1.4m | Reduced -28.6k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 31.8k $1.3m | Added +7.7k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.01% of their portfolio | 30.7k $1.3m | Reduced -2.0k |