8-K
CATALYST PHARMACEUTICALS, INC. (CPRX)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of Earliest Event Reported): March 18, 2026
CATALYST PHARMACEUTICALS, INC.
(Exact Name Of Registrant As Specified In Its Charter)
| Delaware | 001-33057 | 76-0837053 |
|---|---|---|
| (State or other jurisdiction<br> <br>of incorporation) | (Commission<br> <br>File Number) | (I.R.S. Employer<br> <br>Identification No.) |
| 355 Alhambra Circle | ||
| --- | --- | |
| Suite 801 | ||
| Coral Gables, Florida | 33134 | |
| (Address of principal executive offices) | (Zip Code) |
Registrant’s telephone number, including area code: (305) 420-3200
Not Applicable
Former Name or Former address, if changed since last report
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
|---|---|
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| --- | --- |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR240.14d-2(b)) |
| --- | --- |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
| --- | --- |
Securities registered pursuant to Section 12(b) of the Act:
| Title of Each Class | Name of Exchange<br> <br>on Which Registered | Ticker<br> <br>Symbol |
|---|---|---|
| Common Stock, par value $0.001 per share | NASDAQ Capital Market | CPRX |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this Chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging Growth Company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
| Item 8.01 | Other Events |
|---|
On March 18, 2026, the District Court for the District of New Jersey filed an order delaying the start of the bench trial between the Company and Hetero USA, Inc. from March 23, 2026 until May 18, 2026. The bench trial relates to the validity of the Company’s Orange Book-listed patents related to FIRDAPSE^®^ that expire in 2032, 2034, and 2037.
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| Catalyst Pharmaceuticals, Inc. | |
|---|---|
| By: | /s/ Michael W. Kalb |
| Michael W. Kalb | |
| Executive Vice President and Chief Financial Officer |
Dated: May 18, 2026
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