CATALYST PHARMACEUTICALS INC (CPRX) Institutional Shareholders
CATALYST PHARMACEUTICALS INC (CPRX) 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 $3.20B in CPRX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of CPRX tracked by InsiderSet, reporting ownership valued at approximately $602.16M in its June 30, 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 $603.31M, representing an estimated gain of +0.19% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed CPRX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, American Century Companies Inc, and several other long-term asset managers with concentrated positions in CATALYST PHARMACEUTICALS INC (CPRX).
This page ranks the largest institutional CPRX 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
386
Total Reported Value
$3.20B
Largest Holder
Blackrock, Inc.
Largest Position
$602.16M
Insider Transactions (90d)
15
Latest Filing Quarter
Q2 2026
New Institutional Positions
86
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 19,158,785 | $602,160,611 | $603,310,140 | +$1,149,529 | +0.19% | |
| State Street Corp | 0.01% | 7,627,036 | $239,718,530 | $240,175,364 | +$456,834 | +0.19% | |
| American Century Companies Inc | 0.08% | 5,553,921 | $174,559,737 | $174,892,972 | +$333,235 | +0.19% | |
| Vanguard Capital Management Llc | 0.00% | 5,135,345 | $161,403,893 | $161,712,014 | +$308,121 | +0.19% | |
| Dimensional Fund Advisors Lp | 0.02% | 3,634,171 | $114,222,631 | $114,440,045 | +$217,414 | +0.19% | |
| Jpmorgan Chase & Co | 0.01% | 3,169,902 | $99,885,374 | $99,820,214 | -$65,160 | -0.07% | |
| Geode Capital Management, Llc | 0.01% | 3,150,256 | $99,029,648 | $99,201,561 | +$171,913 | +0.17% | |
| Hbk Investments L P | 1.04% | 2,820,302 | $88,642,092 | $88,811,310 | +$169,218 | +0.19% | |
| Morgan Stanley | 0.00% | 2,760,358 | $86,758,074 | $86,923,673 | +$165,599 | +0.19% | |
| Vanguard Portfolio Management Llc | 0.00% | 2,428,922 | $76,341,018 | $76,486,754 | +$145,736 | +0.19% | |
| Qube Research & Technologies Ltd | 0.08% | 2,254,355 | $70,854,378 | $70,989,639 | +$135,261 | +0.19% | |
| Renaissance Technologies LLC | Jim Simons | 0.09% | 2,136,077 | $67,136,900 | $67,265,065 | +$128,165 | +0.19% |
| Boston Partners | 0.05% | 1,658,936 | $52,152,535 | $52,239,895 | +$87,360 | +0.17% | |
| Nexpoint Asset Management, L.P. | 3.37% | 1,602,557 | $50,368,367 | $50,464,520 | +$96,153 | +0.19% | |
| Janus Henderson Group Plc | 0.02% | 1,998,875 | $49,520,437 | $62,944,574 | +$13,424,137 | +27.11% | |
| Ubs Group Ag | 0.01% | 1,453,726 | $45,690,609 | $45,777,832 | +$87,223 | +0.19% | |
| Northern Trust Corp | 0.00% | 1,330,520 | $41,818,244 | $41,898,075 | +$79,831 | +0.19% | |
| Bank Of America Corp | 0.00% | 1,311,366 | $41,216,233 | $41,294,915 | +$78,682 | +0.19% | |
| Goldman Sachs Group Inc | 0.00% | 1,194,200 | $37,533,706 | $37,605,358 | +$71,652 | +0.19% | |
| Charles Schwab Investment Management Inc | 0.00% | 1,159,456 | $36,441,702 | $36,511,269 | +$69,567 | +0.19% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 1,159,456 | $36,441,702 | $36,511,269 | +$69,567 | +0.19% | |
| Polar Asset Management Partners Inc. | 0.66% | 1,150,300 | $36,153,929 | $36,222,947 | +$69,018 | +0.19% | |
| Millennium Management Llc | 0.02% | 1,068,724 | $33,589,995 | $33,654,119 | +$64,124 | +0.19% | |
| Water Island Capital Llc | 3.11% | 933,819 | $29,349,931 | $29,405,960 | +$56,029 | +0.19% | |
| Marshall Wace, Llp | 0.02% | 911,700 | $28,654,732 | $28,709,433 | +$54,701 | +0.19% | |
| Kennedy Capital Management Llc | 0.48% | 856,609 | $26,923,221 | $26,974,617 | +$51,396 | +0.19% | |
| Vanguard Fiduciary Trust Co | 0.01% | 830,669 | $26,107,927 | $26,157,767 | +$49,840 | +0.19% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.04% | 795,700 | $25,008,851 | $25,056,593 | +$47,742 | +0.19% | |
| Swedbank Ab | 0.02% | 775,032 | $24,359,256 | $24,405,758 | +$46,502 | +0.19% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 748,924 | $23,538,681 | $23,583,617 | +$44,936 | +0.19% | |
| Bank Of New York Mellon Corp | 0.00% | 703,228 | $22,102,471 | $22,144,650 | +$42,179 | +0.19% | |
| Principal Financial Group Inc | 0.01% | 683,270 | $21,475,176 | $21,516,172 | +$40,996 | +0.19% | |
| Aqr Arbitrage Llc | 0.30% | 674,223 | $21,190,829 | $21,231,282 | +$40,453 | +0.19% | |
| Systematic Financial Management Lp | 0.42% | 667,883 | $20,991,618 | $21,031,636 | +$40,018 | +0.19% | |
| Fil Ltd | 0.01% | 650,000 | $20,429,500 | $20,468,500 | +$39,000 | +0.19% | |
| Sagefield Capital Lp | 1.33% | 569,481 | $17,898,788 | $17,932,957 | +$34,169 | +0.19% | |
| Glenmede Trust Co Na | 0.07% | 501,212 | $15,753,093 | $15,783,166 | +$30,073 | +0.19% | |
| Invesco Ltd. | 0.00% | 445,990 | $14,017,465 | $14,044,225 | +$26,760 | +0.19% | |
| Nuveen, Llc | 0.00% | 437,351 | $13,745,943 | $13,772,183 | +$26,240 | +0.19% | |
| Gables Capital Management Inc. | 4.76% | 419,181 | $13,174,859 | $13,200,010 | +$25,151 | +0.19% | |
| Public Sector Pension Investment Board | 0.03% | 395,192 | $12,420,885 | $12,444,596 | +$23,711 | +0.19% | |
| William Blair Investment Management, Llc | 0.04% | 371,530 | $11,677,188 | $11,699,480 | +$22,292 | +0.19% | |
| Fmr Llc | 0.00% | 360,468 | $11,329,505 | $11,351,137 | +$21,632 | +0.19% | |
| Royce & Associates Lp | 0.09% | 358,642 | $11,272,118 | $11,293,637 | +$21,519 | +0.19% | |
| Soros Fund Management Llc | 0.14% | 344,593 | $10,830,558 | $10,851,234 | +$20,676 | +0.19% | |
| Jw Asset Management, Llc | 3.95% | 388,392 | $9,616,586 | $12,230,464 | +$2,613,878 | +27.18% | |
| Raymond James Financial Inc | 0.00% | 296,780 | $9,327,796 | $9,345,602 | +$17,806 | +0.19% | |
| Allianz Asset Management Gmbh | 0.01% | 372,989 | $9,235,208 | $11,745,424 | +$2,510,216 | +27.18% | |
| Oberweis Asset Management Inc/ | 0.19% | 293,670 | $9,230,048 | $9,247,668 | +$17,620 | +0.19% | |
| Winton Group Ltd | 0.29% | 287,736 | $9,043,542 | $9,060,807 | +$17,265 | +0.19% |
Frequently asked questions about CPRX
Who owns the most CPRX stock?
The largest holders of CPRX 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 CATALYST PHARMACEUTICALS INC (CPRX).
Is CPRX widely held by superinvestors?
Many widely followed stocks like CPRX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CPRX 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.