셀덱스 테라퓨틱스(Celldex Therapeutics, Inc.)
US ˙ NasdaqCM ˙ US15117B2025

SecurityCLDX / Celldex Therapeutics, Inc.
InstitutionCommodore Capital Lp
Latest Disclosed Ownership3,028,335 shares
Ownership 4.60%
Commodore Capital Lp ownership in CLDX / Celldex Therapeutics, Inc.

2025-11-14 - Commodore Capital Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,028,335 shares of Celldex Therapeutics, Inc. (US:CLDX). This represents 4.6 percent ownership of the company. In their previous filing dated 2025-04-10 , Commodore Capital Lp had reported owning 3,350,000 shares, indicating a decrease of -9.60 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-11-14 2025-11-14 13G/A 3,350,000 3,028,335 -9.60 4.60 -8.00
2025-04-10 2025-04-10 13G 3,350,000 5.00

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 2,696,616 131,616 5.13 85,537 22.78 4.9487
2026-02-17 2025-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 2,565,000 -463,335 -15.30 69,665 -11.08 4.6374
2025-11-14 2025-09-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 3,028,335 -421,665 -12.22 78,343 11.59 3.8245
2025-08-14 2025-06-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 3,450,000 250,000 7.81 70,208 20.88 4.9556
2025-05-15 2025-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 3,200,000 3,200,000 58,080 4.2798
2025-02-14 2024-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 0 -1,618,937 -100.00 0 -100.00
2024-11-14 2024-09-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 1,618,937 193,937 13.61 55,028 4.34 3.4387
2024-08-14 2024-06-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 1,425,000 558,532 64.46 52,739 45.03 3.5999
2024-05-15 2024-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 866,468 164,501 23.43 36,366 30.62 2.4317
2024-02-14 2023-12-31 13F/A-1 CELLDEX THERAPEUTICS INC COM NEW 15117B202 701,967 -4,698 -0.66 27,840 43.16 2.4326
2024-02-14 2023-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 701,967 -4,698 27,840 2.4087
2023-11-14 2023-09-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 706,665 75,000 11.87 19,447 -9.26 2.2732
2023-08-14 2023-06-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 631,665 135,842 27.40 21,432 20.14 2.4086
2023-05-15 2023-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 495,823 0 0.00 17,840 80,986.36 2.7160
2023-02-14 2022-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 495,823 -42,989 -7.98 22 -99.85 3.3304
2022-11-14 2022-09-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 538,812 0 0.00 15,146 4.27 2.4355
2022-08-15 2022-06-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 538,812 297,613 123.39 14,526 76.82 3.0712
2022-05-16 2022-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 241,199 241,199 8,215 1.8348
2022-02-14 2021-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 0 -248,207 -100.00 0 -100.00
2021-11-15 2021-09-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 248,207 -75,230 -23.26 13,401 23.90 3.5332
2021-10-14 2021-06-30 13F/A-1 CELLDEX THERAPEUTICS INC COM NEW 15117B202 323,437 -46,514 -12.57 10,816 41.92 3.7684
2021-08-16 2021-06-30 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 323,437 -46,514 10,816 3.7256
2021-10-14 2021-03-31 13F/A-1 CELLDEX THERAPEUTICS INC COM NEW 15117B202 369,951 13,520 3.79 7,621 22.03 3.0359
2021-05-17 2021-03-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 369,951 13,520 7,621 2.9999
2021-02-16 2020-12-31 13F CELLDEX THERAPEUTICS INC COM NEW 15117B202 356,431 356,431 6,245 3.3953
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.