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Form 8-K

sec.gov

8-K — BIOMARIN PHARMACEUTICAL INC

Accession: 0001628280-26-061717

Filed: 2026-09-14

Period: 2026-09-10

CIK: 0001048477

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

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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): September 10, 2026

BioMarin Pharmaceutical Inc.

(Exact name of registrant as specified in its charter)

Delaware

000-26727

68-0397820

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

770 Lindaro Street

San Rafael

California

94901

(Address of Principal Executive Offices)

(Zip Code)

(415) 506-6700

(Registrant's telephone number, including area code)

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 (see General Instruction A.2. below):

☐ 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 CFR 240.14d-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 Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 BMRN The Nasdaq Global Select Market

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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On September 10, 2026, the Board of Directors (the Board) of BioMarin Pharmaceutical Inc. (the Company) increased the size of the Board from ten to eleven members and appointed Robert Plenge, M.D., Ph.D., to the Board, to be effective September 10, 2026 (the Appointment Date). Dr. Plenge has also been appointed to the Science and Technology Committee of the Board.

As an independent non-employee director, Dr. Plenge will be entitled to receive the standard director fees paid to the Company’s non-employee directors and retainer fees paid to members of the Board committees on which he will sit, as described under the heading “Director Compensation” in the Company’s definitive proxy statement on Schedule 14A (the Proxy Statement), filed with the Securities and Exchange Commission (the SEC) on April 21, 2026.

In connection with his appointment to the Board, on the Appointment Date, Dr. Plenge was granted a number of restricted stock units (the RSU Grant) valued at $400,000 pursuant to the Company’s 2017 Equity Incentive Plan, as amended, which is based on a pro rata share of the 2026 annual award for non-employee directors as described in the Proxy Statement and consistent with Company policy. The shares of common stock subject to the RSU Grant will vest on the date immediately prior to the date of the Company’s next regular annual meeting of stockholders, the same vesting date for the 2026 annual award for all other non-employee directors.

The Company also intends to enter into an indemnification agreement with Dr. Plenge in the same form as the Company’s standard form indemnification agreement with its other directors, which is attached as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on December 19, 2016.

Dr. Plenge was not selected by the Board to serve as a director pursuant to any arrangement or understanding with any person. Dr. Plenge has not engaged in any transaction that would be reportable as a related party transaction under Item 404(a) of Regulation S-K.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

BioMarin Pharmaceutical Inc.,

a Delaware corporation

Date: September 14, 2026 By: /s/ G. Eric Davis

G. Eric Davis

Executive Vice President, Chief Legal Officer

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