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Catalyst Pharmaceuticals (NASDAQ: CPRX) director equity converted to cash at $31.50

(Moderate)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Catalyst Pharmaceuticals director Tamar Thompson reported the disposition of all reported equity positions in connection with the acquisition of Catalyst Pharmaceuticals, Inc. by Angelini Pharma S.p.A. On 2026-07-15, 3,773 shares of common stock were surrendered at $31.50 per share, and multiple restricted stock unit and stock option awards covering specified shares were cancelled and converted into cash based on the $31.50 per-share merger price. Following these transactions, the reported holdings show 0 shares and 0 derivative awards remaining for the positions covered.

Positive

  • None.

Negative

  • None.
Insider Thompson Tamar
Role Director
Type Security Shares Price Value
Disposition Options to purchase common stock 40,000 $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 3,773 $31.50 $119K
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 3773 shares Common stock surrendered at $31.50 per share on 2026-07-15 in connection with the merger
RSUs cancelled (2028-11-20 expiry) 5468 units Restricted stock units cancelled and converted to cash at a $31.50 per-share basis
RSUs cancelled (2027-11-21 expiry) 1894 units Restricted stock units cancelled and converted to cash at a $31.50 per-share basis
RSUs cancelled (2026-12-08 expiry) 1414 units Restricted stock units cancelled and converted to cash at a $31.50 per-share basis
Options cancelled at $22.77 strike 18115 options Options to purchase common stock cancelled; cash based on $31.50 less $22.77 per-share exercise price
Options cancelled at $21.12 strike 23248 options Options to purchase common stock cancelled; cash based on $31.50 less $21.12 per-share exercise price
Options cancelled at $14.15 strike 29524 options Options to purchase common stock cancelled; cash based on $31.50 less $14.15 per-share exercise price
Options cancelled at $11.60 strike 40000 options Options to purchase common stock cancelled; cash based on $31.50 less $11.60 per-share exercise price
restricted stock unit financial
"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
stock option financial
"each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment"
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
per-share price financial
"equal to the product of (x) the excess of $31.50 per share over the per-share price of such Option"
tax withholdings financial
"cash payment (without interest, and less applicable tax withholdings and other authorized deductions)"
Merger regulatory
"disposed of in connection with the consummation of the acquisition of the Issuer by Angelini Pharma S.p.A. (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.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transaction did Catalyst Pharmaceuticals (CPRX) director Tamar Thompson report?

Tamar Thompson reported disposing of all reported equity positions in Catalyst Pharmaceuticals on 2026-07-15. Common shares, RSUs, and stock options were surrendered or cancelled and converted into cash in connection with the $31.50 per-share acquisition by Angelini Pharma S.p.A.

How many Catalyst Pharmaceuticals (CPRX) common shares did Tamar Thompson surrender?

Tamar Thompson surrendered 3,773 shares of Catalyst Pharmaceuticals common stock at $31.50 per share. This disposition occurred in connection with the consummation of the acquisition of Catalyst Pharmaceuticals, Inc. by Angelini Pharma S.p.A. at the stated merger price.

What happened to Tamar Thompson’s restricted stock units in Catalyst Pharmaceuticals (CPRX)?

Reported restricted stock units were cancelled and converted into cash tied to a $31.50 per-share value. Each RSU became a right to receive a cash payment equal to $31.50 multiplied by the number of RSU shares, less applicable tax withholdings and deductions.

How were Tamar Thompson’s Catalyst Pharmaceuticals (CPRX) stock options treated in the merger?

Each reported stock option was cancelled and converted into cash equal to ($31.50 minus the option’s exercise price) times the option shares. Footnotes state the options were fully vested or vested in full upon consummation of the Angelini Pharma S.p.A. merger.

Did Tamar Thompson retain any Catalyst Pharmaceuticals (CPRX) equity after the Angelini merger?

For the positions reported, the Form 4 shows 0 shares of common stock and 0 derivative awards remaining after the 2026-07-15 transactions. All listed common shares, RSUs, and stock options were disposed of or cancelled in connection with the acquisition by Angelini Pharma S.p.A.

Was Tamar Thompson’s Catalyst Pharmaceuticals (CPRX) Form 4 filed under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming a trading plan. Footnotes instead emphasize that the dispositions and cancellations occurred in connection with the consummation of the Angelini Pharma S.p.A. merger at $31.50 per share.
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*
Thompson Tamar

(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)3,773D$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$11.607/15/2026D(3)40,000 (5)05/25/2030Common Stock40,000$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/ Tamar Thompson07/17/2026
** 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)