STOCK TITAN

Amicus Therapeutics (FOLD) CAO exits stock and options in BioMarin deal

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

Rhea-AI Filing Summary

Amicus Therapeutics Chief Accounting Officer Samantha Prout reported the cash-out of her equity in connection with the acquisition of Amicus by BioMarin Pharmaceutical. She disposed of 125,951 shares of Common Stock at $14.50 per share, a figure that includes 47,394 shares of Common Stock and 78,557 restricted stock units that vested in full when the merger was consummated.

Several grants of fully vested stock options covering Amicus Common Stock were also cancelled at closing and converted into cash. For each option grant, she became entitled to a cash payment equal to the difference between the $14.50 merger price and the option’s exercise price, multiplied by the number of option shares. Following these transactions, the filing shows she no longer holds Amicus common shares or stock options.

Positive

  • None.

Negative

  • None.
Insider Prout Samantha
Role Chief Accounting Officer
Type Security Shares Price Value
Disposition Stock Options (right to buy) 2,526 $0.00 --
Disposition Stock Options (right to buy) 3,176 $0.00 --
Disposition Stock Options (right to buy) 37,810 $0.00 --
Disposition Stock Options (right to buy) 55,203 $0.00 --
Disposition Stock Options (right to buy) 43,592 $0.00 --
Disposition Stock Options (right to buy) 62,715 $0.00 --
Disposition Common Stock 125,951 $14.50 $1.83M
Holdings After Transaction: Stock Options (right to buy) — 0 shares (Direct, null); Common Stock — 0 shares (Direct, null)
Footnotes (1)
  1. The reported securities were disposed of in connection with consummation of the acquisition of the Issuer by BioMarin Pharmaceutical Inc. (the "Merger"), which included 47,394 shares of Common Stock and 78,557 restricted stock units (which vested in full in connection with consummation of the Merger). In connection with consummation of the Merger, each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment equal to (a) the excess of (i) $14.50 per share over (ii) the exercise price payable per share, multiplied by (b) the total number of shares subject to such Option. Each Option was fully vested. Each Option vested in full in connection with consummation of the Merger.
Common shares disposed 125,951 shares Disposed at $14.50 per share in merger consideration
Merger cash price $14.50 per share Cash consideration used for shares and option payout calculations
Common stock portion 47,394 shares Common Stock included in the 125,951 total disposed in the merger
Restricted stock units vested 78,557 units RSUs that vested in full upon consummation of the BioMarin merger
Option strike price example $9.41 per share Exercise price for one cancelled stock option grant converted to cash
Option strike price example $14.24 per share Exercise price for another cancelled stock option grant
Post-transaction common holdings 0 shares Total Amicus common stock held after merger-related dispositions
Post-transaction stock options 0 options Total derivative securities held after option cancellation for cash
restricted stock units financial
"which included 47,394 shares of Common Stock and 78,557 restricted stock units"
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.
stock options financial
"each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
disposition to issuer financial
"transaction_code_description": "Disposition to issuer""
Merger financial
"in connection with consummation of the acquisition of the Issuer by BioMarin Pharmaceutical Inc. (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.
exercise price financial
"the excess of (i) $14.50 per share over (ii) the exercise price payable per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
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*
Prout Samantha

(Last)(First)(Middle)
47 HULFISH STREET

(Street)
PRINCETON NEW JERSEY 08542

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
AMICUS THERAPEUTICS, INC. [ FOLD ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Accounting Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026
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 Stock04/27/2026D125,951(1)D$14.50D
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
Stock Options (right to buy)$9.5504/27/2026D(2)2,526 (3)01/02/2030Common Stock2,526(2)0D
Stock Options (right to buy)$10.0304/27/2026D(2)3,176 (3)04/15/2030Common Stock3,176(2)0D
Stock Options (right to buy)$12.1104/27/2026D(2)37,810 (3)01/14/2032Common Stock37,810(2)0D
Stock Options (right to buy)$11.9304/27/2026D(2)55,203 (4)01/03/2033Common Stock55,203(2)0D
Stock Options (right to buy)$14.2404/27/2026D(2)43,592 (4)01/02/2034Common Stock43,592(2)0D
Stock Options (right to buy)$9.4104/27/2026D(2)62,715 (4)01/03/2035Common Stock62,715(2)0D
Explanation of Responses:
1. The reported securities were disposed of in connection with consummation of the acquisition of the Issuer by BioMarin Pharmaceutical Inc. (the "Merger"), which included 47,394 shares of Common Stock and 78,557 restricted stock units (which vested in full in connection with consummation of the Merger).
2. In connection with consummation of the Merger, each reported stock option ("Option") was cancelled and converted into the right to receive a cash payment equal to (a) the excess of (i) $14.50 per share over (ii) the exercise price payable per share, multiplied by (b) the total number of shares subject to such Option.
3. Each Option was fully vested.
4. Each Option vested in full in connection with consummation of the Merger.
/s/ Christian Formica, Attorney-in-Fact04/27/2026
** 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)

FAQ

What did Amicus Therapeutics (FOLD) executive Samantha Prout report on this Form 4?

She reported disposing of her Amicus equity in connection with the merger with BioMarin. Common shares, restricted stock units, and multiple stock option grants were all cancelled and converted into cash consideration at the merger closing.

How many Amicus Therapeutics (FOLD) shares did Samantha Prout dispose of and at what price?

She disposed of 125,951 shares of Amicus Common Stock at $14.50 per share. This total includes 47,394 common shares and 78,557 restricted stock units that vested in full upon consummation of the merger with BioMarin Pharmaceutical.

What happened to Samantha Prout’s Amicus (FOLD) stock options in the BioMarin merger?

Each reported stock option was cancelled at closing and converted into a right to receive cash. The cash equals $14.50 per share minus the option’s exercise price, multiplied by the number of option shares, with all options described as fully vested in the filing.

Were Samantha Prout’s Amicus (FOLD) restricted stock units affected by the merger?

Yes. The filing states that 78,557 restricted stock units vested in full in connection with consummation of the merger. Those vested units, together with her common shares, were disposed of for cash based on the $14.50 per share merger consideration.

Does Samantha Prout still hold Amicus Therapeutics (FOLD) stock or options after the merger?

According to the reported post-transaction balances, she no longer holds Amicus common stock or stock options. The Form 4 shows zero shares and zero derivative securities remaining after her equity was cancelled and cashed out in the BioMarin acquisition.

How is the $14.50 per share merger price used in Samantha Prout’s Amicus (FOLD) Form 4?

The $14.50 per share price is the cash consideration in the BioMarin merger. It applies to her 125,951 common shares and also serves as the reference price for calculating cash payouts on each cancelled stock option, net of each option’s exercise price.