PERSPECTIVE THERAPEUTICS INC (CATX) Top Institutional Shareholders
PERSPECTIVE THERAPEUTICS INC (CATX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $325.33M in CATX holdings during the latest filing period.
Tcg Crossover Management, Llc is currently the largest disclosed institutional shareholder of CATX tracked by InsiderSet, reporting ownership valued at approximately $33.01M 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 $23.59M, representing an estimated loss of -28.54% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 62% of the total disclosed CATX value among the investors covered in this analysis. Major shareholders include Tcg Crossover Management, Llc, Commodore Capital Lp, Avidity Partners Management Lp, and several other long-term asset managers with concentrated positions in PERSPECTIVE THERAPEUTICS INC (CATX).
This page ranks the largest institutional CATX 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
133
Total Reported Value
$325.33M
Largest Holder
Tcg Crossover Management, Llc
Largest Position
$33.01M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
155
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Tcg Crossover Management, Llc | 0.94% | 7,915,567 | $33,007,914 | $23,588,390 | -$9,419,524 | -28.54% | |
| Commodore Capital Lp | 1.53% | 6,336,782 | $26,424,381 | $18,883,610 | -$7,540,771 | -28.54% | |
| Avidity Partners Management Lp | 5.34% | 6,049,999 | $23,594,996 | $18,028,997 | -$5,565,999 | -23.59% | |
| Blackrock, Inc. | 0.00% | 5,348,561 | $22,303,498 | $15,938,712 | -$6,364,786 | -28.54% | |
| Opaleye Management Inc. | 2.57% | 4,675,000 | $19,494,750 | $13,931,500 | -$5,563,250 | -28.54% | |
| Vanguard Capital Management Llc | 0.00% | 4,378,956 | $18,260,247 | $13,049,289 | -$5,210,958 | -28.54% | |
| Millennium Management Llc | 0.01% | 4,046,640 | $16,874,489 | $12,058,987 | -$4,815,502 | -28.54% | |
| Citadel Advisors Llc | 0.01% | 3,566,504 | $14,872,322 | $10,628,182 | -$4,244,140 | -28.54% | |
| Affinity Asset Advisors, Llc | 0.77% | 3,164,582 | $13,196,307 | $9,430,454 | -$3,765,853 | -28.54% | |
| State Street Corp | 0.00% | 3,132,670 | $13,063,234 | $9,335,357 | -$3,727,877 | -28.54% | |
| Balyasny Asset Management L.P. | 0.02% | 2,994,460 | $12,486,898 | $8,923,491 | -$3,563,407 | -28.54% | |
| Morgan Stanley | 0.00% | 2,983,342 | $12,440,536 | $8,890,359 | -$3,550,177 | -28.54% | |
| Spruce Street Capital Lp | 2.63% | 2,627,107 | $10,955,036 | $7,828,779 | -$3,126,257 | -28.54% | |
| Geode Capital Management, Llc | 0.00% | 1,766,960 | $7,370,455 | $5,265,541 | -$2,104,914 | -28.56% | |
| Patient Square Capital Lp | 1.20% | 1,625,000 | $6,776,250 | $4,842,500 | -$1,933,750 | -28.54% | |
| Nicholson Wealth Management Group, Llc | 3.94% | 1,618,993 | $6,751,201 | $4,824,599 | -$1,926,602 | -28.54% | |
| Goldman Sachs Group Inc | 0.00% | 1,241,816 | $5,178,373 | $3,700,612 | -$1,477,761 | -28.54% | |
| Yu Fan | 4.54% | 1,055,409 | $4,401,056 | $3,145,119 | -$1,255,937 | -28.54% | |
| Two Sigma Investments, Lp | 0.00% | 1,003,474 | $4,184,487 | $2,990,353 | -$1,194,134 | -28.54% | |
| Ally Bridge Group (Ny) Llc | 3.84% | 926,557 | $3,863,743 | $2,761,140 | -$1,102,603 | -28.54% | |
| Nuveen, Llc | 0.00% | 910,221 | $3,795,621 | $2,712,459 | -$1,083,162 | -28.54% | |
| Hills Bank & Trust Co | 0.18% | 872,200 | $3,637,074 | $2,599,156 | -$1,037,918 | -28.54% | |
| Octagon Capital Advisors Lp | 0.37% | 791,555 | $3,300,784 | $2,358,834 | -$941,950 | -28.54% | |
| Vanguard Portfolio Management Llc | 0.00% | 752,033 | $3,135,978 | $2,241,058 | -$894,920 | -28.54% | |
| Adar1 Capital Management, Llc | 0.19% | 749,335 | $3,124,727 | $2,233,018 | -$891,709 | -28.54% | |
| Charles Schwab Investment Management Inc | 0.00% | 661,318 | $2,757,696 | $1,970,728 | -$786,968 | -28.54% | |
| Vanguard Fiduciary Trust Co | 0.00% | 566,676 | $2,363,039 | $1,688,694 | -$674,345 | -28.54% | |
| Northern Trust Corp | 0.00% | 528,928 | $2,205,630 | $1,576,205 | -$629,425 | -28.54% | |
| Ubs Group Ag | 0.00% | 520,905 | $2,172,174 | $1,552,297 | -$619,877 | -28.54% | |
| Dimensional Fund Advisors Lp | 0.00% | 450,097 | $1,876,905 | $1,341,289 | -$535,616 | -28.54% | |
| Wealthplan Investment Management, Llc | 0.09% | 404,071 | $1,684,976 | $1,204,132 | -$480,844 | -28.54% | |
| Seven Fleet Capital Management Lp | 0.50% | 379,082 | $1,580,772 | $1,129,664 | -$451,108 | -28.54% | |
| Fmr Llc | 0.00% | 313,658 | $1,307,954 | $934,701 | -$373,253 | -28.54% | |
| Bank Of America Corp | 0.00% | 241,924 | $1,008,823 | $720,934 | -$287,889 | -28.54% | |
| Invesco Ltd. | 0.00% | 231,355 | $964,750 | $689,438 | -$275,312 | -28.54% | |
| Federated Hermes, Inc. | 0.00% | 222,142 | $926,332 | $661,983 | -$264,349 | -28.54% | |
| Citigroup Inc | 0.00% | 212,131 | $884,586 | $632,150 | -$252,436 | -28.54% | |
| Susquehanna International Group, Llp | 0.00% | 186,630 | $778,247 | $556,157 | -$222,090 | -28.54% | |
| Bank Of New York Mellon Corp | 0.00% | 185,335 | $772,845 | $552,298 | -$220,547 | -28.54% | |
| Jefferies Financial Group Inc. | 0.01% | 183,342 | $764,536 | $546,359 | -$218,177 | -28.54% | |
| Squarepoint Ops Llc | 0.00% | 169,147 | $705,343 | $504,058 | -$201,285 | -28.54% | |
| Wellington Management Group Llp | 0.00% | 168,223 | $701,489 | $501,305 | -$200,184 | -28.54% | |
| Rothschild Wealth Llc | 0.06% | 164,821 | $687,304 | $491,167 | -$196,137 | -28.54% | |
| State Of Wisconsin Investment Board | 0.00% | 119,114 | $496,705 | $354,960 | -$141,745 | -28.54% | |
| Exoduspoint Capital Management, Lp | 0.00% | 117,051 | $488,103 | $348,812 | -$139,291 | -28.54% | |
| Voya Investment Management Llc | 0.00% | 115,489 | $481,589 | $344,157 | -$137,432 | -28.54% | |
| Bridgeway Capital Management, Llc | 0.01% | 110,800 | $462,036 | $330,184 | -$131,852 | -28.54% | |
| Trueblood Wealth Management, Llc | 0.16% | 99,061 | $413,084 | $295,202 | -$117,882 | -28.54% | |
| Rafferty Asset Management, Llc | 0.00% | 92,812 | $387,026 | $276,580 | -$110,446 | -28.54% | |
| Rhumbline Advisers | 0.00% | 77,090 | $321,456 | $229,728 | -$91,728 | -28.54% |
Frequently asked questions about CATX
Who owns the most CATX stock?
The largest holders of CATX 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 PERSPECTIVE THERAPEUTICS INC (CATX).
Is CATX widely held by superinvestors?
Many widely followed stocks like CATX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CATX 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.