TARA · Protara Therapeutics, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 119 13F filersWho Holds TARA
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 119 filers, like-for-like change +0.9%; actively managed books -1.7%; index-like books +10.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 50.5% | 56 | +11.9% |
| Exempt adviser | 3.8% | 2 | +666.9% |
| Adviser | 9.5% | 5 | +2.7% |
| Bank | 7.1% | 12 | -18.5% |
| Insurer | 0.1% | 1 | -57.6% |
| Broker-dealer | 0.0% | 2 | -48.8% |
| Benefit plan | 0.1% | 2 | +982.2% |
| Non-US | 0.1% | 3 | +0.4% |
| Holding company | 10.4% | 5 | +8.6% |
| Unknown | 18.3% | 31 | -27.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 23.1% | 18 | +10.8% |
| Systematic-like | 18.9% | 20 | +37.2% |
| Concentrated | 20.2% | 12 | -25.1% |
| Diversified active | 37.7% | 69 | +0.8% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 32.4% | 60 | +9.2% |
| Medium turnover | 24.7% | 23 | +3.7% |
| High turnover | 25.1% | 29 | -10.2% |
| Unknown | 17.8% | 7 | +0.8% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 23.7% | 15 | -16.8% |
| Medium horizon | 23.9% | 19 | -5.1% |
| Long horizon | 35.4% | 72 | +1.5% |
| Unknown | 17.0% | 13 | +61.1% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 19.4% | 16 | -8.7% |
| $1B to $10B | 11.9% | 23 | -10.2% |
| $10B to $100B | 18.2% | 33 | +21.8% |
| $100B or more | 50.6% | 47 | +1.7% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.1% | 15 | -16.9% |
| Pooled investment vehicles | 37.7% | 21 | +8.7% |
| Registered funds and BDCs | 11.2% | 8 | +13.3% |
| Insurance companies | 0.1% | 3 | +34.5% |
| Governments and sovereign funds | 0.3% | 2 | +145.7% |
| Other investment advisers | 0.0% | 1 | +26.9% |
| Diversified | 1.2% | 6 | +304.2% |
| Pension and profit sharing plans | 0.0% | 0 | -100.0% |
| Corporations | 0.0% | 0 | — |
| Unknown | 49.5% | 63 | -8.2% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 27.6% | 21 | +10.2% |
| Private equity funds | 6.3% | 4 | +0.8% |
| Venture capital funds | 4.1% | 3 | -3.1% |
| Real estate funds | 0.0% | 2 | +597.8% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 6.7% | 6 | +345.6% |
| Mixed private funds | 0.0% | 1 | new |
| No private funds | 9.6% | 20 | +11.0% |
| Private funds, type not stated | 0.0% | 0 | -100.0% |
| Unknown | 45.7% | 61 | -14.5% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 94.1% | 102 | +0.9% |
| Outside the US | 5.9% | 17 | +2.0% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 2 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
119 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net sellers of $4,902,836 (0 buying, 1 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 88.1% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies TARA's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | XLO Xilio Therapeutics, Inc. | 3 |
| 2 | SION Sionna Therapeutics, Inc. | 5 |
| 3 | MPLT MapLight Therapeutics, Inc. | 4 |
| 4 | TECX Tectonic Therapeutic, Inc. | 4 |
| 5 | SVRA Savara Inc | 5 |
| 6 | HELP Helus Pharma Inc. | 4 |
| 7 | TYRA Tyra Biosciences, Inc. | 4 |
| 8 | JBIO Jade Biosciences, Inc. | 4 |
| 9 | ALXO Alx Oncology Holdings Inc | 3 |
| 10 | WHWK Whitehawk Therapeutics, Inc. | 3 |
Shareholder Targets
13F filers that own its peers but not TARA, quarter ended Jun 30, 2026Found through its holder-overlap peers: XLO, SION, MPLT, TECX, SVRA, HELP, TYRA, JBIO, ALXO, WHWK, RLMD, KPTI, ARTV, CRBP, CLDX, URGN, ELVN, TENX, DNTH, EWTX. 538 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated | $1,467,751,896 7 held | SION, TYRA, EWTX |
| 2 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $711,342,104 15 held | CLDX, DNTH, SVRA |
| 3 | Paradigm Biocapital Advisors LP Registered adviser, Concentrated | $561,532,117 4 held | EWTX, JBIO, TYRA |
| 4 | Polar Capital Holdings Plc Registered adviser, Diversified active | $534,753,289 5 held | ELVN, DNTH, SVRA |
| 5 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $501,696,277 4 held | DNTH, MPLT, ELVN |
| 6 | Fairmount Funds Management LLC Registered adviser, Concentrated | $442,677,947 3 held | DNTH, JBIO, ELVN |
| 7 | NOVO HOLDINGS A/S Unknown, Concentrated | $438,389,282 4 held | EWTX, MPLT, ELVN |
| 8 | Venrock Adviser, LLC Registered adviser, Concentrated | $396,774,097 7 held | DNTH, SVRA, JBIO |
| 9 | TCG Crossover Management, LLC Unknown, Diversified active | $396,491,920 5 held | DNTH, TYRA, SVRA |
| 10 | Siren, L.L.C. Unknown, Diversified active | $302,502,716 7 held | EWTX, ELVN, SION |
Fund Ownership of TARA by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 10.65% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.77% | 1,637,464 |
| Index ETFs | 7.88% | 4,655,061 |
| Active ETFs | 0.64% | 380,415 |
| Active funds | 1.41% | 834,447 |
| Unclassified | 0.21% | 122,344 |
| All registered funds | 12.91% | 7,629,731 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega Jupiter Topco LLC | $17,941,428 | 10.20% | 4,696,709 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $13,994,564 | 7.96% | 3,663,499 | Shares | 2026-08-07 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $11,846,454 | 6.74% | 3,101,166 | Shares | 2026-08-14 | |
| Small Velan Capital Investment Management LP Registered adviser | $10,866,570 | 6.18% | 2,844,652 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $8,786,508 | 5.00% | 2,300,133 | Shares | 2026-08-13 | |
| Large Blackstone Inc. Adviser | $8,654,263 | 4.92% | 2,265,514 | Shares | 2026-08-14 | |
| Mid ORBIMED ADVISORS LLC Registered adviser | $8,480,400 | 4.82% | 2,220,000 | Shares | 2026-08-14 | |
| Small Sio Capital Management, LLC Adviser | $7,341,551 | 4.18% | 1,921,872 | Shares | 2026-08-14 | |
| Small ACORN CAPITAL ADVISORS, LLC | $6,693,079 | 3.81% | 1,752,115 | Shares | 2026-08-14 | |
| Mid Integral Health Asset Management, LLC Registered adviser | $5,730,000 | 3.26% | 1,500,000 | Shares | 2026-08-14 | |
| Small 5AM Venture Management, LLC Registered adviser | $5,232,567 | 2.98% | 1,369,782 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $5,066,259 | 2.88% | 1,326,246 | Shares | 2026-08-12 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $4,707,633 | 2.68% | 1,232,365 | Shares | 2026-09-02 | |
| Mega STATE STREET CORP Bank | $4,080,886 | 2.32% | 1,068,295 | Shares | 2026-09-22 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $3,993,871 | 2.27% | 1,045,516 | Shares | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $3,921,959 | 2.23% | 1,026,691 | Shares | 2026-08-14 | |
| Large BAKER BROS. ADVISORS LP Registered adviser | $3,711,565 | 2.11% | 971,614 | Shares | 2026-08-14 | |
| Mid ADAR1 Capital Management, LLC Registered adviser | $3,592,755 | 2.04% | 940,512 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $3,369,923 | 1.92% | 882,179 | Shares | 2026-08-14 | |
| Large MARSHALL WACE, LLP Exempt adviser | $2,677,899 | 1.52% | 701,021 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $2,609,937 | 1.48% | 683,230 | Shares | 2026-08-11 | |
| Mega NORTHERN TRUST CORP Bank | $2,109,807 | 1.20% | 552,306 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $2,096,920 | 1.19% | 548,932 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $2,086,586 | 1.19% | 546,227 | Shares | 2026-08-14 | |
| Small Catalio Capital Management, LP Registered adviser | $1,986,965 | 1.13% | 520,148 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $1,942,217 | 1.10% | 508,434 | Shares | 2026-08-13 | |
| Large Walleye Capital LLC Registered adviser | $1,930,750 | 1.10% | 505,432 | Shares | 2026-08-03 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $1,878,129 | 1.07% | 491,657 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $1,744,871 | 0.99% | 456,773 | Shares | 2026-08-13 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $1,278,489 | 0.73% | 334,683 | Shares | 2026-08-13 | |
| Small Verdad Advisers, LP | $1,192,791 | 0.68% | 312,249 | Shares | 2026-08-14 | |
| Large JACOBS LEVY EQUITY MANAGEMENT, INC Registered adviser | $1,129,058 | 0.64% | 295,565 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $960,730 | 0.55% | 251,500 | Shares | 2026-08-13 | |
| Mid OPPENHEIMER & CO INC | $910,542 | 0.52% | 238,362 | Shares | 2026-08-03 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $798,259 | 0.45% | 208,969 | Shares | 2026-08-14 | |
| Mid Jump Financial, LLC | $775,842 | 0.44% | 203,100 | Shares | 2026-08-13 | |
| Large CIBC WORLD MARKET INC. | $636,010 | 0.36% | 166,495 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $603,449 | 0.34% | 157,971 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $525,969 | 0.30% | 137,689 | Shares | 2026-08-06 | |
| Mid J. Goldman & Co LP Registered adviser | $515,700 | 0.29% | 135,000 | Shares | 2026-08-14 | |
| Small SUPERSTRING CAPITAL MANAGEMENT LP | $463,965 | 0.26% | 121,457 | Shares | 2026-08-14 | |
| Mega Fisher Asset Management, LLC Adviser | $380,342 | 0.22% | 99,566 | Shares | 2026-08-04 | |
| Mega AMERICAN CENTURY COMPANIES INC | $376,220 | 0.21% | 98,487 | Shares | 2026-08-12 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $325,960 | 0.19% | 85,330 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $277,369 | 0.16% | 72,610 | Shares | 2026-08-11 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $266,070 | 0.15% | 69,652 | Shares | 2026-08-14 | |
| Mega FMR LLC Holding company | $260,523 | 0.15% | 68,200 | Shares | 2026-08-13 | |
| Mid XTX Topco Ltd | $244,281 | 0.14% | 63,948 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $241,595 | 0.14% | 63,245 | Shares | 2026-08-12 | |
| Large TRUIST FINANCIAL CORP Bank | $229,200 | 0.13% | 60,000 | Shares | 2026-07-28 | |
| Large Trexquant Investment LP Registered adviser | $227,733 | 0.13% | 59,616 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $220,463 | 0.13% | 57,713 | Shares | 2026-08-07 | |
| Large ALPS ADVISORS INC Registered adviser | $217,896 | 0.12% | 57,041 | Shares | 2026-07-29 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $214,939 | 0.12% | 56,267 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $208,556 | 0.12% | 54,596 | Shares | 2026-08-14 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $193,788 | 0.11% | 50,730 | Shares | 2026-08-12 | |
| Small NANO CAP NEW MILLENNIUM GROWTH FUND L P | $191,000 | 0.11% | 50,000 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $154,251 | 0.09% | 40,380 | Shares | 2026-08-14 | |
| Large Alyeska Investment Group, L.P. Registered adviser | $151,753 | 0.09% | 39,726 | Shares | 2026-08-14 | |
| Large Quadrature Capital Ltd | $150,198 | 0.09% | 39,319 | Shares | 2026-08-07 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $147,005 | 0.08% | 38,483 | Shares | 2026-08-14 | |
| Large Marex Group plc | $134,655 | 0.08% | 35,250 | Shares | 2026-08-14 | |
| Mid WINTON GROUP Ltd | $125,296 | 0.07% | 32,800 | Shares | 2026-08-07 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $113,454 | 0.06% | 29,700 | Shares | 2026-08-17 | |
| Mega Russell Investments Group, Ltd. | $108,751 | 0.06% | 28,469 | Shares | 2026-08-06 | |
| Large MetLife Investment Management, LLC Registered adviser | $108,403 | 0.06% | 28,378 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $102,589 | 0.06% | 26,856 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $92,233 | 0.05% | 24,145 | Shares | 2026-08-03 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $92,042 | 0.05% | 24,095 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $87,478 | 0.05% | 22,900 | Put | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $86,361 | 0.05% | 22,608 | Shares | 2026-08-12 | |
| Large Jain Global LLC Registered adviser | $80,220 | 0.05% | 21,000 | Shares | 2026-08-14 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $76,885 | 0.04% | 20,127 | Shares | 2026-08-13 | |
| Mid PRELUDE CAPITAL MANAGEMENT, LLC Registered adviser | $74,921 | 0.04% | 19,613 | Shares | 2026-08-14 | |
| Small EntryPoint Capital, LLC Registered adviser | $73,672 | 0.04% | 19,286 | Shares | 2026-08-13 | |
| Mega LPL Financial LLC Broker-dealer | $73,076 | 0.04% | 19,130 | Shares | 2026-08-07 | |
| Mega BARCLAYS PLC Bank | $71,078 | 0.04% | 18,607 | Shares | 2026-08-14 | |
| Large Squarepoint Ops LLC Registered adviser | $69,233 | 0.04% | 18,124 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $68,912 | 0.04% | 18,040 | Shares | 2026-08-14 | |
| Large IEQ CAPITAL, LLC Registered adviser | $68,488 | 0.04% | 17,929 | Shares | 2026-08-11 | |
| Large Police & Firemen's Retirement System of New Jersey | $67,113 | 0.04% | 17,569 | Shares | 2026-07-23 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE | $56,833 | 0.03% | 14,878 | Shares | 2026-09-09 | |
| Large INTECH INVESTMENT MANAGEMENT LLC Registered adviser | $51,806 | 0.03% | 13,562 | Shares | 2026-08-10 | |
| Large Mariner, LLC Registered adviser | $45,454 | 0.03% | 11,899 | Shares | 2026-08-13 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $43,811 | 0.02% | 11,469 | Shares | 2026-08-12 | |
| Mega D. E. Shaw & Co., Inc. | $42,451 | 0.02% | 11,113 | Shares | 2026-08-14 | |
| Large COMMONWEALTH EQUITY SERVICES, LLC Registered adviser | $42,020 | 0.02% | 11,000 | Shares | 2026-07-29 | |
| Large Corient Private Wealth LLC Registered adviser | $40,835 | 0.02% | 10,690 | Shares | 2026-08-27 | |
| Small Essential Partners LLC Registered adviser | $33,068 | 0.02% | 10,842 | Shares | 2026-10-14 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $30,178 | 0.02% | 7,900 | Shares | 2026-07-29 | |
| Mega ROYAL BANK OF CANADA Bank | $29,654 | 0.02% | 7,763 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $28,787 | 0.02% | 7,536 | Shares | 2026-08-13 | |
| Mid Tower Research Capital LLC (TRC) | $19,061 | 0.01% | 4,990 | Shares | 2026-08-11 | |
| Mega Legal & General Group Plc | $17,151 | 0.01% | 4,490 | Shares | 2026-08-14 | |
| Mid Ameritas Investment Partners, Inc. Registered adviser | $12,598 | 0.01% | 3,298 | Shares | 2026-08-13 | |
| Large Arax Advisory Partners Registered adviser | $6,383 | 0.00% | 1,671 | Shares | 2026-08-10 | |
| Mid Sterling Capital Management LLC Registered adviser | $4,030 | 0.00% | 1,055 | Shares | 2026-07-28 | |
| Small State of Wyoming | $3,667 | 0.00% | 960 | Shares | 2026-08-06 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $2,750 | 0.00% | 720 | Shares | 2026-08-24 | |
| Mid GAMMA Investing LLC Registered adviser | $2,080 | 0.00% | 682 | Shares | 2026-10-08 |
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