Who owns CDTX (CDTX)
Which tracked institutional funds hold CDTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CDTX company fundamentals →
Ownership as of the 2025-Q4 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on CDTX is one-sided between 2025-Q3 and 2025-Q4: 179 added or opened and 52 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
CDTX’s largest tracked holder by dollar value, RA CAPITAL MANAGEMENT, L.P., sizes it at 7.9% of its own reported 13F book, while the median holder sizes it at 0.7% of theirs — a 7.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CDTX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q3 and 2025-Q4, across 255 tracked filers holding CDTX, 202 increased or opened the position and 103 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in CDTX between the 2025-Q3 and 2025-Q4 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 95
- HBK INVESTMENTS L P$278M
- FIL Ltd$278M
- Glazer Capital, LLC$144M
- Pentwater Capital Management LP$125M
- Beryl Capital Management LLC$115M
- OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)$70M
Full exits 40
- Bain Capital Life Sciences Investors, LLC$289M
- BVF INC/IL$135M
- VR ADVISER, LLC$91M
- JANUS HENDERSON GROUP PLC$65M
- Commodore Capital LP$56M
- Holocene Advisors, LP$47M
Largest adds
- RA CAPITAL MANAGEMENT, L.P.$421M
- VANGUARD GROUP INC$321M
- BlackRock, Inc.$260M
- UBS Group AG$192M
- Jefferies Financial Group Inc.$134M
- Balyasny Asset Management L.P.$130M
Largest trims
- Point72 Asset Management, L.P.$96M
- Soleus Capital Management, L.P.$39M
- FMR LLC$14M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$12M
- FRED ALGER MANAGEMENT, LLC$12M
- Invesco Ltd.$10M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 3,365,523 | $743M | 9.4% | 2025-Q4 |
| VANGUARD GROUP INC added | 1,987,319 | $439M | 5.6% | 2025-Q4 |
| BlackRock, Inc. added | 1,680,662 | $371M | 4.7% | 2025-Q4 |
| HBK INVESTMENTS L P new | 1,260,000 | $278M | 3.5% | 2025-Q4 |
| FIL Ltd new | 1,257,574 | $278M | 3.5% | 2025-Q4 |
| UBS Group AG added | 1,074,924 | $237M | 3.0% | 2025-Q4 |
| Darwin Global Management, Ltd. | 997,196 | $220M | 2.8% | 2025-Q4 |
| Vivo Capital, LLC trimmed | 956,670 | $211M | 2.7% | 2025-Q4 |
| STATE STREET CORP added | 884,374 | $195M | 2.5% | 2025-Q4 |
| Jefferies Financial Group Inc. added | 766,520 | $169M | 2.1% | 2025-Q4 |
| Paradigm Biocapital Advisors LP trimmed | 759,565 | $168M | 2.1% | 2025-Q4 |
| Balyasny Asset Management L.P. added | 672,890 | $149M | 1.9% | 2025-Q4 |
| Glazer Capital, LLC new | 650,191 | $144M | 1.8% | 2025-Q4 |
| Pentwater Capital Management LP new | 565,000 | $125M | 1.6% | 2025-Q4 |
| MORGAN STANLEY added | 542,722 | $120M | 1.5% | 2025-Q4 |
| Beryl Capital Management LLC new | 522,138 | $115M | 1.5% | 2025-Q4 |
| GEODE CAPITAL MANAGEMENT, LLC added | 520,591 | $115M | 1.5% | 2025-Q4 |
| MILLENNIUM MANAGEMENT LLC added | 509,647 | $113M | 1.4% | 2025-Q4 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC added | 477,527 | $105M | 1.3% | 2025-Q4 |
| MAVERICK CAPITAL LTD added | 455,978 | $101M | 1.3% | 2025-Q4 |
| FARALLON CAPITAL MANAGEMENT LLC trimmed | 382,800 | $85M | 1.1% | 2025-Q4 |
| GOLDMAN SACHS GROUP INC added | 377,718 | $83M | 1.1% | 2025-Q4 |
| Qube Research & Technologies Ltd added | 358,432 | $79M | 1.0% | 2025-Q4 |
| CITIGROUP INC added | 348,421 | $77M | 1.0% | 2025-Q4 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) new | 315,474 | $70M | 0.9% | 2025-Q4 |
| Logos Global Management LP trimmed | 310,000 | $68M | 0.9% | 2025-Q4 |
| Squarepoint Ops LLC added | 293,586 | $65M | 0.8% | 2025-Q4 |
| NEXPOINT ASSET MANAGEMENT, L.P. new | 279,900 | $62M | 0.8% | 2025-Q4 |
| JPMORGAN CHASE & CO added | 276,551 | $61M | 0.8% | 2025-Q4 |
| SOROS FUND MANAGEMENT LLC new | 275,000 | $61M | 0.8% | 2025-Q4 |
| FMR LLC trimmed | 274,962 | $61M | 0.8% | 2025-Q4 |
| Ikarian Capital, LLC trimmed | 273,243 | $60M | 0.8% | 2025-Q4 |
| CITADEL ADVISORS LLC trimmed | 269,389 | $60M | 0.8% | 2025-Q4 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 263,332 | $58M | 0.7% | 2025-Q4 |
| Point72 Asset Management, L.P. trimmed | 250,000 | $55M | 0.7% | 2025-Q4 |
| Magnetar Financial LLC new | 232,537 | $51M | 0.7% | 2025-Q4 |
| Spruce Street Capital LP new | 232,269 | $51M | 0.7% | 2025-Q4 |
| Weiss Asset Management LP new | 224,998 | $50M | 0.6% | 2025-Q4 |
| MARSHALL WACE, LLP trimmed | 222,763 | $49M | 0.6% | 2025-Q4 |
| Polar Asset Management Partners Inc. new | 216,998 | $48M | 0.6% | 2025-Q4 |
| ALLIANCEBERNSTEIN L.P. added | 212,028 | $47M | 0.6% | 2025-Q4 |
| Verition Fund Management LLC new | 210,329 | $46M | 0.6% | 2025-Q4 |
| ALPINE ASSOCIATES MANAGEMENT INC. new | 208,560 | $46M | 0.6% | 2025-Q4 |
| BANK OF AMERICA CORP /DE/ trimmed | 207,844 | $46M | 0.6% | 2025-Q4 |
| First Trust Capital Management L.P. new | 205,233 | $45M | 0.6% | 2025-Q4 |
| Rock Springs Capital Management LP trimmed | 204,878 | $45M | 0.6% | 2025-Q4 |
| NORGES BANK new | 200,000 | $44M | 0.6% | 2025-Q4 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 190,700 | $42M | 0.5% | 2025-Q4 |
| KRYGER CAPITAL Ltd new | 185,313 | $41M | 0.5% | 2025-Q4 |
| NEUBERGER BERMAN GROUP LLC new | 184,873 | $41M | 0.5% | 2025-Q4 |
| Sofinnova Investments, Inc. added | 180,265 | $40M | 0.5% | 2025-Q4 |
| NORTHERN TRUST CORP added | 179,081 | $40M | 0.5% | 2025-Q4 |
| PERCEPTIVE ADVISORS LLC new | 165,131 | $36M | 0.5% | 2025-Q4 |
| FRED ALGER MANAGEMENT, LLC trimmed | 164,575 | $36M | 0.5% | 2025-Q4 |
| AQR Arbitrage LLC new | 157,709 | $35M | 0.4% | 2025-Q4 |
| Davidson Kempner Capital Management LP new | 155,631 | $34M | 0.4% | 2025-Q4 |
| WATER ISLAND CAPITAL LLC new | 150,708 | $33M | 0.4% | 2025-Q4 |
| GABELLI FUNDS LLC new | 148,666 | $33M | 0.4% | 2025-Q4 |
| FNY Investment Advisers, LLC added | 145,533 | $32M | 0.4% | 2025-Q4 |
| ODDO BHF ASSET MANAGEMENT SAS new | 142,500 | $31M | 0.4% | 2025-Q4 |
| WHITEBOX ADVISORS LLC new | 125,001 | $28M | 0.4% | 2025-Q4 |
| Man Group plc new | 116,713 | $26M | 0.3% | 2025-Q4 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC new | 112,980 | $25M | 0.3% | 2025-Q4 |
| RENAISSANCE TECHNOLOGIES LLC added | 110,560 | $24M | 0.3% | 2025-Q4 |
| Velan Capital Investment Management LP | 108,404 | $24M | 0.3% | 2025-Q4 |
| Octagon Capital Advisors LP | 100,000 | $22M | 0.3% | 2025-Q4 |
| Eversept Partners, LP added | 98,721 | $22M | 0.3% | 2025-Q4 |
| GABELLI & Co INVESTMENT ADVISERS, INC. new | 95,805 | $21M | 0.3% | 2025-Q4 |
| Walleye Capital LLC added | 91,000 | $20M | 0.3% | 2025-Q4 |
| ACUTA CAPITAL PARTNERS, LLC trimmed | 89,145 | $20M | 0.2% | 2025-Q4 |
| BNP PARIBAS FINANCIAL MARKETS added | 86,869 | $19M | 0.2% | 2025-Q4 |
| SUPERSTRING CAPITAL MANAGEMENT LP added | 85,098 | $19M | 0.2% | 2025-Q4 |
| Sand Grove Capital Management LLP new | 80,821 | $18M | 0.2% | 2025-Q4 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 79,587 | $18M | 0.2% | 2025-Q4 |
| BARCLAYS PLC trimmed | 78,322 | $17M | 0.2% | 2025-Q4 |
| NAN FUNG TRINITY (HK) LTD new | 77,100 | $17M | 0.2% | 2025-Q4 |
| Slotnik Capital, LLC new | 76,245 | $17M | 0.2% | 2025-Q4 |
| PICTON MAHONEY ASSET MANAGEMENT new | 75,000 | $17M | 0.2% | 2025-Q4 |
| Versor Investments LP new | 73,200 | $16M | 0.2% | 2025-Q4 |
| Artia Global Partners LP new | 70,824 | $16M | 0.2% | 2025-Q4 |
| AMERIPRISE FINANCIAL INC added | 68,986 | $15M | 0.2% | 2025-Q4 |
| CAXTON ASSOCIATES LLP new | 68,821 | $15M | 0.2% | 2025-Q4 |
| Woodline Partners LP added | 67,500 | $15M | 0.2% | 2025-Q4 |
| Bain Capital Life Sciences Investors, LLC added | 3,020,990 | $289M | 3.7% | 2025-Q3 stale |
| BVF INC/IL added | 1,414,165 | $135M | 1.7% | 2025-Q3 stale |
| VR ADVISER, LLC added | 946,788 | $91M | 1.1% | 2025-Q3 stale |
| JANUS HENDERSON GROUP PLC added | 682,901 | $65M | 0.8% | 2025-Q3 stale |
| Commodore Capital LP trimmed | 585,000 | $56M | 0.7% | 2025-Q3 stale |
| TCG Crossover Management, LLC | 1,005,901 | $49M | 0.6% | 2025-Q2 stale |
| Holocene Advisors, LP new | 487,233 | $47M | 0.6% | 2025-Q3 stale |
| Vestal Point Capital, LP trimmed | 400,000 | $38M | 0.5% | 2025-Q3 stale |
| JENNISON ASSOCIATES LLC added | 396,015 | $38M | 0.5% | 2025-Q3 stale |
| SAMLYN CAPITAL, LLC new | 307,960 | $29M | 0.4% | 2025-Q3 stale |
| Deep Track Capital, LP added | 300,000 | $29M | 0.4% | 2025-Q3 stale |
| First Light Asset Management, LLC added | 292,657 | $28M | 0.4% | 2025-Q3 stale |
| BAKER BROS. ADVISORS LP | 227,272 | $22M | 0.3% | 2025-Q3 stale |
| SILVERARC CAPITAL MANAGEMENT, LLC added | 220,902 | $21M | 0.3% | 2025-Q3 stale |
| Driehaus Capital Management LLC trimmed | 216,219 | $21M | 0.3% | 2025-Q3 stale |
| Aberdeen Group plc trimmed | 177,523 | $17M | 0.2% | 2025-Q3 stale |
| Atika Capital Management LLC new | 157,320 | $15M | 0.2% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.