CPRX — CATALYST PHARMACEUTICALS INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying CPRX?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 4 tracked investors who changed their CPRX position last quarter, 2 bought and 2 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 57/100 in a Contraction regime).
- +2 tracked investors added or increased positions last quarter (Izzy Englander, George Soros)
- +3 tracked investors reported holding CPRX at their latest filing
- +Macro Health is 57/100 in a Contraction regime — historically acceptable for this sectorsource
- −2 tracked investors reduced or exited last quarter (0 reduced, 2 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/6/2026.
About CATALYST PHARMACEUTICALS INC (CPRX)
CATALYST PHARMACEUTICALS INC (CPRX) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $34M. Across recent filings, tracked investors recorded 9 new positions, 4 increased, 3 reduced, and 6 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in CPRX
How many top investors track CPRX
A small number of top investors own this.
CPRX Ownership Composition
How CATALYST PHARMACEUTICALS INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant77.2%
- Macro22.8%
Tracked investors currently reporting CPRX
2 tracked investors have since exited this position — listed separately below.
- Izzy EnglanderJun 30, 2026Millennium ManagementShares1.1MValue$33.6M% Portfolio0.01%
- Ken GriffinJun 30, 2026Citadel AdvisorsShares96.6KValue$3M% Portfolio0.00%
- George SorosJun 30, 2026Soros Fund ManagementShares344.6KValue$10.8M% Portfolio0.13%
Previously held CPRX
These investors reported CPRX in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Steve Cohen | Point72 Asset Management | 425.9K | $10.5M | Mar 31, 2026 |
| Paul Tudor Jones | Tudor Investment Corp | 20.4K | $505K | Mar 31, 2026 |
Recent activity
- Increased$11.1M(331.21%)Nov 14, 2024
- Reduced$10.9M(-6.97%)Feb 14, 2025
- Reduced$7.4M(-41.72%)May 15, 2025
- Increased$9.3M(41.71%)Aug 14, 2025
- Reduced$23.2M(-27.24%)Feb 17, 2026
- Sold$0(-100.00%)May 15, 2026
- $33.6MAug 14, 2026
- New$10.8MAug 14, 2026
- New$961KNov 14, 2024
- New$17.4MMay 15, 2025
- Sold$0(-100.00%)Aug 14, 2025
- Sold$0(-100.00%)Nov 14, 2024
- New$10.5MMay 15, 2026
- Sold$0(-100.00%)Aug 14, 2026
- $1.2MFeb 14, 2025
- Increased$1.5M(3.42%)May 15, 2025
- Increased$1.7M(23.55%)Aug 14, 2025
- Sold$0(-100.00%)Dec 9, 2025
- $505KMay 15, 2026
- Sold$0(-100.00%)Aug 14, 2026
- New$9.6MSep 16, 2024
- $1.7MMay 15, 2024
Frequently asked questions
- How many institutional investors hold CPRX?
- 3 tracked institutional investors disclosed a position in CPRX (CATALYST PHARMACEUTICALS INC) in their most recent 13F filing.
- Who is the largest institutional holder of CPRX?
- Izzy Englander, Millennium Management, holds the largest disclosed position in CPRX, valued at $34M.
- Did institutional ownership of CPRX increase or decrease?
- Across recent 13F filings, tracked investors recorded 9 new positions, 4 increased, 3 reduced, and 6 fully exited CPRX.
- Where does this CPRX ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.