Institutional shares held 106 Million
164K calls
439K puts
Total value of holdings $2.45B
$3.81M calls
$10.2M puts
Market Cap $2.38B
102,820,000 Shares Out.
Institutional ownership 102.87%
# of Institutions 394


Latest Institutional Activity in CPRX

Top Purchases

Q3 2025
Deerfield Management Company, L.P. (Series C) Shares Held: 4.97M ($115M)
Q3 2025
State Street Corp Shares Held: 6.41M ($148M)
Q3 2025
American Century Companies Inc Shares Held: 2.53M ($58.6M)
Q3 2025
Millennium Management LLC Shares Held: 1.18M ($27.3M)
Q3 2025
Fundsmith LLP Shares Held: 3.36M ($78M)

Top Sells

Q3 2025
Goldman Sachs Group Inc Shares Held: 1.01M ($23.3M)
Q3 2025
Morgan Stanley Shares Held: 1.84M ($42.7M)
Q3 2025
Nuveen, LLC Shares Held: 542K ($12.6M)
Q3 2025
Ubs Asset Management Americas Inc Shares Held: 277K ($6.43M)
Q3 2025
Algert Global LLC Shares Held: 112K ($2.6M)

About CPRX

Catalyst Pharmaceuticals, Inc., a commercial-stage biopharmaceutical company, focuses on developing and commercializing therapies for people with rare debilitating, chronic neuromuscular, and neurological diseases in the United States. It offers Firdapse, an amifampridine phosphate tablets for the treatment of patients with lambert-eaton myasthenic syndrome (LEMS); and Ruzurgi for the treatment of pediatric LEMS patients. The company also develops Firdapse for the treatment of MuSK antibody positive myasthenia gravis, and spinal muscular atrophy type 3, as well as to treat hereditary neuropathy with liability to pressure palsies. It has license agreements with BioMarin Pharmaceutical Inc.; and collaboration and license agreement with Endo Ventures Limited for the development and commercialization of generic Sabril tablets. The company was formerly known as Catalyst Pharmaceutical Partners, Inc. and changed its name to Catalyst Pharmaceuticals, Inc. in May 2015. Catalyst Pharmaceuticals, Inc. was founded in 2002 and is based in Coral Gables, Florida.


Insider Transactions at CPRX

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
1.81M Shares
From 15 Insiders
Exercise of conversion of derivative security 1.7M shares
Open market or private sale 110K shares
Sell / Disposition
1.27M Shares
From 15 Insiders
Payment of exercise price or tax liability 65.8K shares
Open market or private sale 1.07M shares
Bona fide gift 135K shares

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