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Catalyst Pharma (CPRX) director cashes out stock and options in $31.50 Angelini buyout

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Catalyst Pharmaceuticals director David S. Tierney reported the disposition of 383,314 shares of common stock at $31.50 per share to the issuer on July 15, 2026, in connection with the acquisition by Angelini Pharma S.p.A. All reported RSUs and fully vested stock options were cancelled at closing and converted into cash based on the $31.50 merger price, leaving no reported remaining holdings of these securities.

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Insider Tierney David S
Role Director
Type Security Shares Price Value
Disposition Options to purchase common stock 33,500 $0.00 --
Disposition Options to purchase common stock 30,000 $0.00 --
Disposition Options to purchase common stock 20,000 $0.00 --
Disposition Options to purchase common stock 15,000 $0.00 --
Disposition Options to purchase common stock 29,524 $0.00 --
Disposition Options to purchase common stock 23,248 $0.00 --
Disposition Options to purchase common stock 18,115 $0.00 --
Disposition Restricted Stock Units 1,414 $0.00 --
Disposition Restricted Stock Units 1,894 $0.00 --
Disposition Restricted Stock Units 5,468 $0.00 --
Disposition Common Stock, par value $0.001 per share 383,314 $31.50 $12.07M
Holdings After Transaction: Options to purchase common stock — 0 shares (Direct); Restricted Stock Units — 0 shares (Direct); Common Stock, par value $0.001 per share — 0 shares (Direct)
Footnotes (1)
  1. The reported securities were disposed of in connection with the consummation of the acquisition of the Issuer by Angelini Pharma S.p.A. (the "Merger") Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. In connection with the consummation of the Merger, each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment (without interest, and less applicable tax withholdings and other authorized deductions) equal to the product of (x) the excess of $31.50 per share over the per-share price of such Option, multiplied by (y) the total number of shares subject to such Option. In connection with the consummation of the Merger, each reported restricted stock unit ("RSU") was cancelled and converted into the right to receive a cash payment (without interest, and less applicable tax withholdings and other authorized deductions) equal to the product of (x) the excess of $31.50 per share, multiplied by (y) the number of shares subject to such RSU. Each Option was fully vested. Each Option or RSU, as applicable, vested in full in connection with the consummation of the Merger.
Common shares disposed 383,314 shares Disposition of common stock to issuer on 2026-07-15 in connection with the Angelini Pharma merger
Merger cash price per share $31.50 per share Price paid for common stock and used to calculate cash for RSUs and options
RSUs cancelled (2032-11-20 grant) 5,468 units Restricted Stock Units cancelled and cashed out at merger; underlying 5,468 common shares, expiring 2028-11-20
Stock options cancelled at $22.77 strike 18,115 options Options to purchase common stock with $22.77 exercise price, expiring 2032-11-20, cancelled for cash
Stock options cancelled at $21.12 strike 23,248 options Options to purchase common stock with $21.12 exercise price, expiring 2031-11-21, cancelled for cash
Reported holdings after transactions 0 shares or units Total shares or units following each reported common stock, RSU and option disposition
Restricted Stock Units financial
"The reported securities include Restricted Stock Units cancelled and cashed out at the Merger"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Options to purchase common stock financial
"Each reported Option to purchase common stock was cancelled and converted into a cash payment"
Disposition to issuer financial
"Transaction code D is described as a Disposition to issuer for the reported securities"
Angelini Pharma S.p.A. financial
"Securities were disposed of in the acquisition of the Issuer by Angelini Pharma S.p.A."
Merger financial
"The acquisition of the Issuer by Angelini Pharma S.p.A. is defined as the Merger"
A merger is when two companies combine into a single business, with ownership and control reorganized so they operate as one entity. For investors it matters because mergers can change the value and risk of holdings—shares may be exchanged, diluted, or rise if the combined company saves costs or gains market power, and the deal often depends on regulatory approval and successful integration like two households joining resources and routines.

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FAQ

What insider transaction did Catalyst Pharmaceuticals (CPRX) disclose for David S. Tierney?

David S. Tierney disposed of 383,314 Catalyst Pharmaceuticals common shares at $31.50 per share in a disposition to the issuer. This occurred upon closing of the Angelini Pharma S.p.A. acquisition, alongside cash-out of his reported RSUs and stock options.

How was the $31.50 merger price applied to David S. Tierney’s CPRX equity?

The $31.50 per-share merger price was paid for his common stock and used to calculate cash for RSUs and options. RSUs were cashed out at $31.50 per unit, while options received cash equal to $31.50 minus the option’s exercise price, times shares.

What happened to David S. Tierney’s restricted stock units in Catalyst Pharmaceuticals (CPRX)?

All reported restricted stock units (RSUs) vested in full and were cancelled when the Angelini merger closed. Each RSU converted into a cash payment based on the $31.50 per-share merger price, less applicable tax withholdings and other authorized deductions.

What occurred to David S. Tierney’s stock options in CPRX after the Angelini merger?

All reported options to purchase Catalyst common stock were fully vested, cancelled and cashed out at closing. Each option generated a cash payment equal to ($31.50 minus its exercise price) multiplied by the number of underlying shares, subject to tax withholdings.

Does David S. Tierney report any remaining Catalyst Pharmaceuticals (CPRX) equity after these transactions?

Following the merger-related dispositions, the Form 4 shows 0 shares or units remaining for each reported common stock, RSU, and option position. This indicates no reported remaining holdings in those specific Catalyst equity awards after the Angelini Pharma acquisition closed.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Tierney David S

(Last)(First)(Middle)
355 ALHAMBRA CIRCLE, SUITE 801

(Street)
CORAL GABLES FLORIDA 33134

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
CATALYST PHARMACEUTICALS, INC. [ CPRX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/15/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock, par value $0.001 per share07/15/2026D(1)383,314D$31.50D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Options to purchase common stock$4.6407/15/2026D(3)33,500 (5)12/02/2026Common Stock33,500$00D
Options to purchase common stock$3.4207/15/2026D(3)30,000 (5)12/30/2027Common Stock30,000$00D
Options to purchase common stock$7.0707/15/2026D(3)20,000 (5)12/28/2028Common Stock20,000$00D
Options to purchase common stock$18.5907/15/2026D(3)15,000 (5)12/27/2029Common Stock15,000$00D
Options to purchase common stock$14.1507/15/2026D(3)29,524 (6)12/08/2030Common Stock29,524$00D
Options to purchase common stock$21.1207/15/2026D(3)23,248 (6)11/21/2031Common Stock23,248$00D
Options to purchase common stock$22.7707/15/2026D(3)18,115 (6)11/20/2032Common Stock18,115$00D
Restricted Stock Units(2)07/15/2026D(4)1,414 (6)12/08/2026Common Stock1,414$00D
Restricted Stock Units(2)07/15/2026D(4)1,894 (6)11/21/2027Common Stock1,894$00D
Restricted Stock Units(2)07/15/2026D(4)5,468 (6)11/20/2028Common Stock5,468$00D
Explanation of Responses:
1. The reported securities were disposed of in connection with the consummation of the acquisition of the Issuer by Angelini Pharma S.p.A. (the "Merger")
2. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
3. In connection with the consummation of the Merger, each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment (without interest, and less applicable tax withholdings and other authorized deductions) equal to the product of (x) the excess of $31.50 per share over the per-share price of such Option, multiplied by (y) the total number of shares subject to such Option.
4. In connection with the consummation of the Merger, each reported restricted stock unit ("RSU") was cancelled and converted into the right to receive a cash payment (without interest, and less applicable tax withholdings and other authorized deductions) equal to the product of (x) the excess of $31.50 per share, multiplied by (y) the number of shares subject to such RSU.
5. Each Option was fully vested.
6. Each Option or RSU, as applicable, vested in full in connection with the consummation of the Merger.
/s/ David S. Tierney07/17/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)