# CATALYST PHARMACEUTICALS INC (CPRX)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/CPRX/

- Reporting holders: 397
- Reported value: $3.8B
- Held through calls: 0.0%
- Held through puts: 0.1%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [BlackRock, Inc.](https://holderbook.com/funds/2012383-blackrock-inc/) | $602.2M | 19,158,785 | 0.0% | 8 |
| [STATE STREET CORP](https://holderbook.com/funds/93751-state-street-corp/) | $479.4M | 15,254,072 | 0.0% | 31 |
| [HBK INVESTMENTS L P](https://holderbook.com/funds/1011443-hbk-investments-l-p/) | $177.3M | 5,640,604 | 0.9% | 1 |
| [AMERICAN CENTURY COMPANIES INC](https://holderbook.com/funds/748054-american-century-companies-inc/) | $174.6M | 5,553,921 | 0.1% | 25 |
| [VANGUARD CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/2100119-vanguard-capital-management-llc/) | $161.4M | 5,135,345 | 0.0% | 2 |
| [DIMENSIONAL FUND ADVISORS LP](https://holderbook.com/funds/354204-dimensional-fund-advisors-lp/) | $114.2M | 3,634,171 | 0.0% | 31 |
| [GLAZER CAPITAL, LLC](https://holderbook.com/funds/1076809-glazer-capital-llc/) | $113.2M | 3,602,865 | 2.8% | 1 |
| [JPMORGAN CHASE & CO](https://holderbook.com/funds/19617-jpmorgan-chase-co/) | $99.9M | 3,169,902 | 0.0% | 31 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1214717-geode-capital-management-llc/) | $99.0M | 3,150,256 | 0.0% | 31 |
| [MORGAN STANLEY](https://holderbook.com/funds/895421-morgan-stanley/) | $86.8M | 2,760,358 | 0.0% | 35 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](https://holderbook.com/funds/2100121-vanguard-portfolio-management-llc/) | $76.3M | 2,428,922 | 0.0% | 2 |
| [Jupiter Topco LLC](https://holderbook.com/funds/2146052-jupiter-topco-llc/) | $71.6M | 2,277,822 | 0.0% | 1 |
| [Qube Research & Technologies Ltd](https://holderbook.com/funds/1729829-qube-research-technologies-ltd/) | $70.9M | 2,254,355 | 0.1% | 10 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $67.1M | 2,136,077 | 0.1% | 20 |
| [Boston Partners](https://holderbook.com/funds/1386060-boston-partners/) | $52.2M | 1,658,936 | 0.0% | 18 |
| [NEXPOINT ASSET MANAGEMENT, L.P.](https://holderbook.com/funds/1469877-nexpoint-asset-management-l-p/) | $50.4M | 1,602,557 | 3.4% | 1 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $45.7M | 1,453,726 | 0.0% | 24 |
| [NORTHERN TRUST CORP](https://holderbook.com/funds/73124-northern-trust-corp/) | $41.8M | 1,330,520 | 0.0% | 31 |
| [BANK OF AMERICA CORP /DE/](https://holderbook.com/funds/70858-bank-of-america-corp-de/) | $41.2M | 1,311,366 | 0.0% | 31 |
| [GOLDMAN SACHS GROUP INC](https://holderbook.com/funds/886982-goldman-sachs-group-inc/) | $37.5M | 1,194,200 | 0.0% | 31 |
| [CHARLES SCHWAB INVESTMENT MANAGEMENT INC](https://holderbook.com/funds/884546-charles-schwab-investment-management-inc/) | $36.4M | 1,159,456 | 0.0% | 31 |
| [Sixth Street Partners Management Company, L.P.](https://holderbook.com/funds/1812095-sixth-street-partners-management-company-l-p/) | $36.4M | 1,159,456 | 0.0% | 1 |
| [Polar Asset Management Partners Inc.](https://holderbook.com/funds/1326389-polar-asset-management-partners-inc/) | $36.2M | 1,150,300 | 0.6% | 1 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $33.6M | 1,068,724 | 0.0% | 28 |
| [WATER ISLAND CAPITAL LLC](https://holderbook.com/funds/1222765-water-island-capital-llc/) | $29.3M | 933,819 | 2.7% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 397 | $3.8B |
| Q1 2026 | 381 | $2.6B |
| Q4 2025 | 376 | $2.4B |
| Q3 2025 | 362 | $2.1B |
| Q2 2025 | 365 | $2.2B |
| Q1 2025 | 369 | $2.4B |
| Q4 2024 | 337 | $2.0B |
| Q3 2024 | 315 | $1.9B |
| Q2 2024 | 271 | $1.5B |
| Q1 2024 | 270 | $1.6B |
| Q4 2023 | 260 | $1.5B |
| Q3 2023 | 257 | $954.5M |