Who owns Protara Therapeutics (TARA)
Which tracked institutional funds hold TARA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TARA 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 TARA is one-sided between 2026-Q1 and 2026-Q2: 10 added or opened and 33 trimmed or exited — on balance reducing.
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
TARA’s largest tracked holder by dollar value, Jupiter Topco LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in TARA 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 119 tracked filers holding TARA, 76 increased or opened the position and 48 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 TARA 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 4
- Jupiter Topco LLC$18M
- ORBIMED ADVISORS LLC$8M
- BALYASNY ASSET MANAGEMENT L.P.$4M
- Verdad Advisers, LP$1M
Full exits 5
- JANUS HENDERSON GROUP PLC$27M
- AIGH Capital Management LLC$8M
- Patient Square Capital LP$5M
- Burkehill Global Management, LP$2M
- ExodusPoint Capital Management, LP$606K
Largest adds
- Qube Research & Technologies Ltd$3M
- MARSHALL WACE, LLP$2M
- JACOBS LEVY EQUITY MANAGEMENT, INC$867K
- AQR CAPITAL MANAGEMENT LLC$454K
- Jump Financial, LLC$428K
- RENAISSANCE TECHNOLOGIES LLC$306K
Largest trims
- UBS Group AG$6M
- J. Goldman & Co LP$4M
- Point72 Asset Management, L.P.$4M
- Velan Capital Investment Management LP$4M
- BlackRock, Inc.$4M
- Integral Health Asset Management, LLC$3M
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 |
|---|---|---|---|---|
| Jupiter Topco LLC new | 4,696,709 | $18M | 10.2% | 2026-Q2 |
| BlackRock, Inc. added | 3,663,499 | $14M | 8.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 3,101,166 | $12M | 6.7% | 2026-Q2 |
| Velan Capital Investment Management LP added | 2,844,652 | $11M | 6.2% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,300,133 | $9M | 5.0% | 2026-Q2 |
| Blackstone Inc. | 2,265,514 | $9M | 4.9% | 2026-Q2 |
| ORBIMED ADVISORS LLC new | 2,220,000 | $8M | 4.8% | 2026-Q2 |
| Sio Capital Management, LLC trimmed | 1,921,872 | $7M | 4.2% | 2026-Q2 |
| ACORN CAPITAL ADVISORS, LLC | 1,752,115 | $7M | 3.8% | 2026-Q2 |
| Integral Health Asset Management, LLC trimmed | 1,500,000 | $6M | 3.3% | 2026-Q2 |
| 5AM Venture Management, LLC | 1,369,782 | $5M | 3.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,326,246 | $5M | 2.9% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,232,365 | $5M | 2.7% | 2026-Q2 |
| STATE STREET CORP added | 1,068,295 | $4M | 2.3% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 1,045,516 | $4M | 2.3% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,026,691 | $4M | 2.2% | 2026-Q2 |
| BAKER BROS. ADVISORS LP | 971,614 | $4M | 2.1% | 2026-Q2 |
| ADAR1 Capital Management, LLC | 940,512 | $4M | 2.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 882,179 | $3M | 1.9% | 2026-Q2 |
| MARSHALL WACE, LLP added | 701,021 | $3M | 1.5% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 683,230 | $3M | 1.5% | 2026-Q2 |
| NORTHERN TRUST CORP added | 552,306 | $2M | 1.2% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 548,932 | $2M | 1.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 546,227 | $2M | 1.2% | 2026-Q2 |
| Catalio Capital Management, LP trimmed | 520,148 | $2M | 1.1% | 2026-Q2 |
| MORGAN STANLEY trimmed | 508,434 | $2M | 1.1% | 2026-Q2 |
| Walleye Capital LLC added | 505,432 | $2M | 1.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 491,657 | $2M | 1.1% | 2026-Q2 |
| UBS Group AG trimmed | 456,773 | $2M | 1.0% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 334,683 | $1M | 0.7% | 2026-Q2 |
| Verdad Advisers, LP new | 312,249 | $1M | 0.7% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 295,565 | $1M | 0.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 251,500 | $961K | 0.5% | 2026-Q2 |
| OPPENHEIMER & CO INC added | 238,362 | $911K | 0.5% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 208,969 | $798K | 0.5% | 2026-Q2 |
| Jump Financial, LLC added | 203,100 | $776K | 0.4% | 2026-Q2 |
| CIBC WORLD MARKET INC. trimmed | 166,495 | $636K | 0.4% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 157,971 | $603K | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 137,689 | $526K | 0.3% | 2026-Q2 |
| J. Goldman & Co LP trimmed | 135,000 | $516K | 0.3% | 2026-Q2 |
| SUPERSTRING CAPITAL MANAGEMENT LP | 121,457 | $464K | 0.3% | 2026-Q2 |
| Fisher Asset Management, LLC new | 99,566 | $380K | 0.2% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 98,487 | $376K | 0.2% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 85,330 | $326K | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 72,610 | $277K | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 69,652 | $266K | 0.2% | 2026-Q2 |
| FMR LLC added | 68,200 | $261K | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 63,948 | $244K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 63,245 | $242K | 0.1% | 2026-Q2 |
| TRUIST FINANCIAL CORP | 60,000 | $229K | 0.1% | 2026-Q2 |
| Assenagon Asset Management S.A. trimmed | 59,954 | $229K | 0.1% | 2026-Q2 |
| Trexquant Investment LP added | 59,616 | $228K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 57,713 | $220K | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC added | 57,041 | $218K | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 56,267 | $215K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 54,596 | $209K | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 50,730 | $194K | 0.1% | 2026-Q2 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P added | 50,000 | $191K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 40,380 | $154K | 0.1% | 2026-Q2 |
| Alyeska Investment Group, L.P. trimmed | 39,726 | $152K | 0.1% | 2026-Q2 |
| Quadrature Capital Ltd added | 39,319 | $150K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 38,483 | $148K | 0.1% | 2026-Q2 |
| Marex Group Ltd trimmed | 35,250 | $135K | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd added | 32,800 | $125K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO new | 29,700 | $113K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 28,469 | $109K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC trimmed | 28,378 | $108K | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 26,856 | $103K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 24,145 | $92K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 24,095 | $92K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 22,608 | $94K | 0.1% | 2026-Q2 |
| Jain Global LLC added | 21,000 | $80K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 20,127 | $77K | 0.0% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 19,613 | $75K | 0.0% | 2026-Q2 |
| EntryPoint Capital, LLC new | 19,286 | $74K | 0.0% | 2026-Q2 |
| LPL Financial LLC trimmed | 19,130 | $73K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 18,607 | $71K | 0.0% | 2026-Q2 |
| Squarepoint Ops LLC added | 18,124 | $69K | 0.0% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. new | 18,040 | $94K | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC new | 17,929 | $68K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey | 17,569 | $67K | 0.0% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 14,878 | $57K | 0.0% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 13,562 | $52K | 0.0% | 2026-Q2 |
| Mariner, LLC new | 11,899 | $45K | 0.0% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC new | 11,469 | $44K | 0.0% | 2026-Q2 |
| D. E. Shaw & Co., Inc. new | 11,113 | $42K | 0.0% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC | 11,000 | $42K | 0.0% | 2026-Q2 |
| Corient Private Wealth LP new | 10,690 | $41K | 0.0% | 2026-Q2 |
| Essential Partners LLC trimmed | 9,802 | $37K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND | 7,900 | $30K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 7,763 | $29K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 7,536 | $29K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 4,990 | $19K | 0.0% | 2026-Q2 |
| Legal & General Group Plc | 4,490 | $17K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. | 3,298 | $13K | 0.0% | 2026-Q2 |
| Arax Advisory Partners added | 1,671 | $6K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC trimmed | 1,055 | $4K | 0.0% | 2026-Q2 |
| State of Wyoming new | 960 | $4K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC added | 732 | $3K | 0.0% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 720 | $3K | 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.