Who owns Bicara Therapeutics Inc. Common Stock (BCAX)
Which tracked institutional funds hold BCAX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BCAX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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 BCAX is one-sided between 2026-Q1 and 2026-Q2: 82 added or opened and 13 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
BCAX’s largest tracked holder by dollar value, RA CAPITAL MANAGEMENT, L.P., sizes it at 1.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BCAX 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 2026-Q1 and 2026-Q2, across 166 tracked filers holding BCAX, 103 increased or opened the position and 50 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 BCAX between the 2026-Q1 and 2026-Q2 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 9
- Jupiter Topco LLC$94M
- SEB Asset Management AB$7M
- Jump Financial, LLC$3M
- Rhenman & Partners Asset Management AB$3M
- Trexquant Investment LP$2M
- XTX Topco Ltd$2M
Full exits 5
- T. Rowe Price Investment Management, Inc.$131M
- JANUS HENDERSON GROUP PLC$66M
- Swiss Life Asset Management Ltd$979K
- HRT FINANCIAL LP$799K
- NORGES BANK$559K
Largest adds
- RA CAPITAL MANAGEMENT, L.P.$71M
- BlackRock, Inc.$58M
- Siren, L.L.C.$51M
- Vestal Point Capital, LP$48M
- Deep Track Capital, LP$41M
- STATE STREET CORP$33M
Largest trims
- CITADEL ADVISORS LLC$26M
- FIL Ltd$12M
- ORBIMED ADVISORS LLC$8M
- UBS Group AG$2M
- Hudson Bay Capital Management LP$2M
- Burkehill Global Management, LP$504K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 7,255,993 | $215M | 11.1% | 2026-Q2 |
| Siren, L.L.C. trimmed | 5,602,970 | $166M | 8.6% | 2026-Q2 |
| Vestal Point Capital, LP trimmed | 5,250,000 | $156M | 8.1% | 2026-Q2 |
| Deep Track Capital, LP added | 4,100,000 | $122M | 6.3% | 2026-Q2 |
| BlackRock, Inc. added | 3,848,090 | $114M | 5.9% | 2026-Q2 |
| Jupiter Topco LLC new | 3,171,015 | $94M | 4.9% | 2026-Q2 |
| RED TREE MANAGEMENT, LLC trimmed | 3,163,517 | $94M | 4.9% | 2026-Q2 |
| TPG GP A, LLC | 3,010,425 | $89M | 4.6% | 2026-Q2 |
| Royalty Pharma Sub-Manager, LLC | 2,388,150 | $61M | 3.1% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,216,639 | $66M | 3.4% | 2026-Q2 |
| STATE STREET CORP added | 2,048,920 | $61M | 3.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 1,951,892 | $58M | 3.0% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 1,904,248 | $57M | 2.9% | 2026-Q2 |
| FMR LLC trimmed | 1,893,070 | $56M | 2.9% | 2026-Q2 |
| Omega Fund Management, LLC trimmed | 1,822,150 | $54M | 2.8% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,162,635 | $35M | 1.8% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 1,015,965 | $30M | 1.5% | 2026-Q2 |
| Jones Hill Capital LP trimmed | 892,621 | $27M | 1.4% | 2026-Q2 |
| ACORN CAPITAL ADVISORS, LLC trimmed | 643,381 | $19M | 1.0% | 2026-Q2 |
| Aisling Capital Management LP | 568,919 | $17M | 0.9% | 2026-Q2 |
| Palo Alto Investors LP | 550,408 | $16M | 0.8% | 2026-Q2 |
| Rock Springs Capital Management LP added | 535,286 | $16M | 0.8% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 520,567 | $15M | 0.8% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 498,193 | $15M | 0.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 461,724 | $14M | 0.7% | 2026-Q2 |
| NAN FUNG TRINITY (HK) LTD | 427,885 | $13M | 0.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 418,912 | $12M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 396,343 | $12M | 0.6% | 2026-Q2 |
| Candriam S.C.A. added | 373,380 | $11M | 0.6% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 365,481 | $11M | 0.6% | 2026-Q2 |
| Walleye Capital LLC added | 353,226 | $10M | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 352,904 | $10M | 0.5% | 2026-Q2 |
| Ensign Peak Advisors, Inc trimmed | 342,211 | $10M | 0.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 313,739 | $9M | 0.5% | 2026-Q2 |
| Clearbridge Investments, LLC added | 289,785 | $9M | 0.4% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 288,749 | $9M | 0.4% | 2026-Q2 |
| DAFNA Capital Management LLC trimmed | 284,955 | $8M | 0.4% | 2026-Q2 |
| MORGAN STANLEY trimmed | 283,884 | $8M | 0.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 262,254 | $8M | 0.4% | 2026-Q2 |
| TD Asset Management Inc trimmed | 261,118 | $8M | 0.4% | 2026-Q2 |
| ALGERT GLOBAL LLC trimmed | 233,232 | $7M | 0.4% | 2026-Q2 |
| Woodline Partners LP | 232,690 | $7M | 0.4% | 2026-Q2 |
| SEB Asset Management AB new | 232,156 | $7M | 0.4% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 211,142 | $6M | 0.3% | 2026-Q2 |
| ORBIMED ADVISORS LLC trimmed | 191,100 | $6M | 0.3% | 2026-Q2 |
| Atle Fund Management AB trimmed | 145,657 | $4M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 144,010 | $4M | 0.2% | 2026-Q2 |
| Bank of New York Mellon Corp added | 120,666 | $4M | 0.2% | 2026-Q2 |
| Napean Trading & Investment Co (Singapore) PTE Ltd | 113,780 | $3M | 0.2% | 2026-Q2 |
| Hudson Bay Capital Management LP trimmed | 105,000 | $3M | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 100,300 | $3M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 97,223 | $3M | 0.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 91,363 | $3M | 0.1% | 2026-Q2 |
| Rhenman & Partners Asset Management AB new | 88,150 | $3M | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 82,716 | $2M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 72,174 | $2M | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P added | 70,744 | $2M | 0.1% | 2026-Q2 |
| Shay Capital LLC added | 68,000 | $2M | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC added | 66,182 | $2M | 0.1% | 2026-Q2 |
| UBS Group AG trimmed | 65,986 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 63,978 | $2M | 0.1% | 2026-Q2 |
| SEVEN GRAND MANAGERS, LLC | 62,500 | $2M | 0.1% | 2026-Q2 |
| FIL Ltd trimmed | 62,174 | $2M | 0.1% | 2026-Q2 |
| Trexquant Investment LP added | 59,220 | $2M | 0.1% | 2026-Q2 |
| Swiss National Bank added | 59,200 | $2M | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 58,983 | $2M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 55,990 | $1M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 54,986 | $2M | 0.1% | 2026-Q2 |
| SCS Capital Management LLC | 53,430 | $2M | 0.1% | 2026-Q2 |
| Mariner, LLC trimmed | 53,112 | $2M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 50,240 | $1M | 0.1% | 2026-Q2 |
| Burkehill Global Management, LP trimmed | 50,000 | $1M | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 46,606 | $1M | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 43,844 | $1M | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 43,389 | $1M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 39,893 | $1M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 39,000 | $1M | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 38,646 | $1M | 0.1% | 2026-Q2 |
| Corient Private Wealth LP new | 36,683 | $1M | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 34,698 | $1M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 33,339 | $990K | 0.1% | 2026-Q2 |
| Rafferty Asset Management, LLC trimmed | 30,480 | $905K | 0.0% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 29,917 | $888K | 0.0% | 2026-Q2 |
| Bleakley Financial Group, LLC trimmed | 29,181 | $866K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 28,469 | $845K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC added | 26,088 | $775K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 24,425 | $725K | 0.0% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 23,943 | $711K | 0.0% | 2026-Q2 |
| OPTIMIZE FINANCIAL INC. trimmed | 23,913 | $710K | 0.0% | 2026-Q2 |
| Sound Capital Solutions LLC new | 23,913 | $710K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 23,892 | $708K | 0.0% | 2026-Q2 |
| Legal & General Group Plc added | 23,703 | $704K | 0.0% | 2026-Q2 |
| Creative Planning added | 22,327 | $663K | 0.0% | 2026-Q2 |
| Aquatic Capital Management LLC added | 18,114 | $538K | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP new | 16,808 | $499K | 0.0% | 2026-Q2 |
| PROFUND ADVISORS LLC trimmed | 15,740 | $467K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 15,500 | $460K | 0.0% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 15,253 | $453K | 0.0% | 2026-Q2 |
| Virtus Investment Advisers, LLC added | 15,086 | $448K | 0.0% | 2026-Q2 |
| LPL Financial LLC added | 14,685 | $436K | 0.0% | 2026-Q2 |
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.