Option Care Health, Inc.

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 30, 2026

OPTION CARE HEALTH, INC.

(Exact name of registrant as specified in its charter)

3000 Lakeside Dr. Suite 300N, Bannockburn, IL 60015

(Address of principal executive offices)

(312)940-2443

(Registrant's telephone number, including area code)

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:

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.¨

Securities registered pursuant to Section 12(b) of the Act:

On March 30, 2026, Option Care Health, Inc. (the “Company”) entered into that certain Fifth Amendment to Amended and Restated First Lien Credit Agreement (the “Amendment”), by and among the Company, as borrower, certain subsidiaries of the Company party thereto, each Incremental Revolving Lender party thereto and Bank of America, N.A., as administrative agent (the “Agent”), which amends that certain Amended and Restated First Lien Credit Agreement, dated as of October 27, 2021 (as amended by that certain First Amendment to Amended and Restated First Lien Credit Agreement, dated as of June 8, 2023, that certain Second Amendment to Amended and Restated First Lien Credit Agreement, dated as of December 7, 2023, that certain Third Amendment to Amended and Restated First Lien Credit Agreement, dated as of May 8, 2024, that certain Fourth Amendment to Amended and Restated First Lien Credit Agreement, dated as of September 22, 2025, and the Amendment, the “Credit Agreement”), by and among the Company, as borrower, certain subsidiaries of the Company from time to time party thereto, the Lenders from time to time party thereto and the Agent. The Amendment, among other things, establishes new revolving credit commitments in an aggregate principal amount equal to $450,000,000, which takes the form of an increase to the existing Revolving Credit Commitments. Post-Amendment, the aggregate principal amount of Revolving Credit Commitments outstanding pursuant to the Credit Agreement is $850,000,000.

The foregoing description of the Amendment is not complete and is qualified in its entirety by reference to the full text of the Amendment, which is attached to this Current Report on Form 8-K as Exhibit 10.1, and is incorporated herein by reference. Capitalized terms used in this Item 1.01 but not defined herein have the meaning assigned to such terms in the Amendment or the Credit Agreement, as applicable.

The information set forth in Item 1.01 above is incorporated into this Item 2.03 by reference.

(d) Exhibits.

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 hereunto duly authorized.