PROTARA THERAPEUTIC INC (TARA) Institutional Shareholders
PROTARA THERAPEUTIC INC (TARA) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $190.99M in TARA holdings during the latest filing period.
Janus Henderson Group Plc is currently the largest disclosed institutional shareholder of TARA tracked by InsiderSet, reporting ownership valued at approximately $27.15M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $18.48M, representing an estimated loss of -31.93% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed TARA value among the investors covered in this analysis. Major shareholders include Janus Henderson Group Plc, Blackrock, Inc., Millennium Management Llc, and several other long-term asset managers with concentrated positions in PROTARA THERAPEUTIC INC (TARA).
This page ranks the largest institutional TARA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
120
Total Reported Value
$190.99M
Largest Holder
Janus Henderson Group Plc
Largest Position
$27.15M
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
153
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Janus Henderson Group Plc | 0.01% | 5,207,011 | $27,154,562 | $18,484,889 | -$8,669,673 | -31.93% | |
| Blackrock, Inc. | 0.00% | 3,663,499 | $13,994,565 | $13,005,421 | -$989,144 | -7.07% | |
| Millennium Management Llc | 0.01% | 3,101,166 | $11,846,454 | $11,009,139 | -$837,315 | -7.07% | |
| Velan Capital Investment Management Lp | 6.66% | 2,844,652 | $10,866,571 | $10,098,515 | -$768,056 | -7.07% | |
| Vanguard Capital Management Llc | 0.00% | 2,300,133 | $8,786,508 | $8,165,472 | -$621,036 | -7.07% | |
| Blackstone Inc. | 0.03% | 2,265,514 | $8,654,263 | $8,042,575 | -$611,688 | -7.07% | |
| Orbimed Advisors Llc | 0.16% | 2,220,000 | $8,480,400 | $7,881,000 | -$599,400 | -7.07% | |
| Catalio Capital Management, Lp | 1.36% | 1,446,254 | $7,708,534 | $5,134,202 | -$2,574,332 | -33.40% | |
| Sio Capital Management, Llc | 1.26% | 1,921,872 | $7,341,551 | $6,822,646 | -$518,905 | -7.07% | |
| Acorn Capital Advisors, Llc | 1.83% | 1,752,115 | $6,693,079 | $6,220,008 | -$473,071 | -7.07% | |
| Integral Health Asset Management, Llc | 0.24% | 1,500,000 | $5,730,000 | $5,325,000 | -$405,000 | -7.07% | |
| 5Am Venture Management, Llc | 1.82% | 1,369,782 | $5,232,567 | $4,862,726 | -$369,841 | -7.07% | |
| Geode Capital Management, Llc | 0.00% | 1,326,246 | $5,067,467 | $4,708,173 | -$359,294 | -7.09% | |
| Citadel Advisors Llc | 0.00% | 1,232,365 | $4,707,635 | $4,374,896 | -$332,739 | -7.07% | |
| State Street Corp | 0.00% | 1,068,295 | $4,080,887 | $3,792,447 | -$288,440 | -7.07% | |
| Qube Research & Technologies Ltd | 0.00% | 1,045,516 | $3,993,871 | $3,711,582 | -$282,289 | -7.07% | |
| Balyasny Asset Management L.P. | 0.01% | 1,026,691 | $3,921,960 | $3,644,753 | -$277,207 | -7.07% | |
| Baker Bros. Advisors Lp | 0.02% | 971,614 | $3,711,565 | $3,449,230 | -$262,335 | -7.07% | |
| Adar1 Capital Management, Llc | 0.17% | 940,512 | $3,592,756 | $3,338,818 | -$253,938 | -7.07% | |
| Bank Of America Corp | 0.00% | 882,179 | $3,369,924 | $3,131,735 | -$238,189 | -7.07% | |
| Marshall Wace, Llp | 0.00% | 701,021 | $2,677,900 | $2,488,625 | -$189,275 | -7.07% | |
| Dimensional Fund Advisors Lp | 0.00% | 683,230 | $2,611,855 | $2,425,467 | -$186,389 | -7.14% | |
| Northern Trust Corp | 0.00% | 552,306 | $2,109,809 | $1,960,686 | -$149,123 | -7.07% | |
| Point72 Asset Management, L.P. | 0.00% | 548,932 | $2,096,920 | $1,948,709 | -$148,211 | -7.07% | |
| Goldman Sachs Group Inc | 0.00% | 546,227 | $2,086,587 | $1,939,106 | -$147,481 | -7.07% | |
| Morgan Stanley | 0.00% | 508,434 | $1,942,218 | $1,804,941 | -$137,277 | -7.07% | |
| Walleye Capital Llc | 0.01% | 505,432 | $1,930,750 | $1,794,284 | -$136,466 | -7.07% | |
| Vanguard Portfolio Management Llc | 0.00% | 491,657 | $1,878,130 | $1,745,382 | -$132,748 | -7.07% | |
| Ubs Group Ag | 0.00% | 456,773 | $1,744,873 | $1,621,544 | -$123,329 | -7.07% | |
| Vanguard Fiduciary Trust Co | 0.00% | 334,683 | $1,278,489 | $1,188,125 | -$90,364 | -7.07% | |
| Verdad Advisers, Lp | 1.14% | 312,249 | $1,192,791 | $1,108,484 | -$84,307 | -7.07% | |
| Jacobs Levy Equity Management, Inc | 0.00% | 295,565 | $1,129,058 | $1,049,256 | -$79,802 | -7.07% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 251,500 | $960,730 | $892,825 | -$67,905 | -7.07% |
| Oppenheimer & Co Inc | 0.01% | 238,362 | $910,543 | $846,185 | -$64,358 | -7.07% | |
| Aqr Capital Management Llc | 0.00% | 208,969 | $798,262 | $741,840 | -$56,422 | -7.07% | |
| Jump Financial, Llc | 0.01% | 203,100 | $775,842 | $721,005 | -$54,837 | -7.07% | |
| Cibc World Market Inc. | 0.00% | 166,495 | $636,011 | $591,057 | -$44,954 | -7.07% | |
| Charles Schwab Investment Management Inc | 0.00% | 157,971 | $603,449 | $560,797 | -$42,652 | -7.07% | |
| Bank Of New York Mellon Corp | 0.00% | 137,689 | $525,971 | $488,796 | -$37,175 | -7.07% | |
| J. Goldman & Co Lp | 0.02% | 135,000 | $515,700 | $479,250 | -$36,450 | -7.07% | |
| Superstring Capital Management Lp | 0.29% | 121,457 | $463,966 | $431,172 | -$32,794 | -7.07% | |
| Fisher Asset Management, Llc | 0.00% | 99,566 | $380,342 | $353,459 | -$26,883 | -7.07% | |
| American Century Companies Inc | 0.00% | 98,487 | $376,220 | $349,629 | -$26,591 | -7.07% | |
| Bridgeway Capital Management, Llc | 0.01% | 85,330 | $325,961 | $302,922 | -$23,040 | -7.07% | |
| Nuveen, Llc | 0.00% | 72,610 | $277,371 | $257,766 | -$19,606 | -7.07% | |
| Two Sigma Investments, Lp | 0.00% | 69,652 | $266,071 | $247,265 | -$18,806 | -7.07% | |
| Fmr Llc | 0.00% | 68,200 | $260,524 | $242,110 | -$18,414 | -7.07% | |
| Xtx Topco Ltd | 0.00% | 63,948 | $244,281 | $227,015 | -$17,266 | -7.07% | |
| Rhumbline Advisers | 0.00% | 63,245 | $241,589 | $224,520 | -$17,069 | -7.07% | |
| Truist Financial Corp | 0.00% | 60,000 | $229,200 | $213,000 | -$16,200 | -7.07% |
Frequently asked questions about TARA
Who owns the most TARA stock?
The largest holders of TARA are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for PROTARA THERAPEUTIC INC (TARA).
Is TARA widely held by superinvestors?
Many widely followed stocks like TARA appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly TARA is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.