Indivior Pharmaceuticals, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2026

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number:001-37835

(Exact name of registrant as specified in its charter)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

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. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No☑

As of July 28, 2026, the number of shares of common stock outstanding was 118,013,649.

Table of Contents

Important cautionary note regarding forward-looking statements

Certain statements contained herein, as well as in other filings we make with the SEC and other written and oral information we release, regarding our performance or other events or developments in the future constitute “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, among other things, express and implied statements pertaining to the Company’s financial guidance; expected levels of future rebate payments, research and development expenses; expected future capital expenditures; potential future share repurchases; anticipated benefits of the proposed merger with Supernus, the expected timing of completion of the proposed merger, estimated costs associated with the proposed merger; expectations regarding the adequacy of the Company’s current and expected future liquidity to satisfy future cash requirements; expected litigation outcomes; and statements containing the words "believe," "anticipate," "plan," "expect," "intend," "estimate," "forecast," "strategy," "target," "goal," "guidance," "outlook," "potential," "project," "priority," "may," "will," "should," "would," "could," "can," the negatives thereof, and variations thereon and similar expressions. By their nature, forward-looking statements involve risks and uncertainties as they relate to events or circumstances that may or may not occur in the future.

Actual results may differ materially from those expressed or implied in these forward-looking statements due to a number of factors, including but not limited to: lower than expected future sales of our products; greater than expected impacts from competition; and unanticipated costs including the effects of potential tariffs and potential retaliatory tariffs; market conditions; the decisions of third parties outside of our control with respect to potential business development opportunities; the risk that the proposed merger with Supernus may not be completed on the anticipated timeline or at all; the failure to obtain required stockholder or regulatory approvals for the merger, or the imposition of conditions in connection with such approvals; the risk that the anticipated benefits, synergies, growth, profitability, cash flow generation and earnings accretion of the merger are not realized or are realized more slowly than expected; and risks relating to the integration of the two businesses. For additional information about some of the risks and important factors that could affect our future results and financial condition, see “Important Cautionary Note Regarding Forward-looking Statements” and "Risk Factors" in Indivior's Annual Report on Form 10-K filed February 26, 2026, in Part II Item 1A of this report, and in our other filings with the U.S. Securities and Exchange Commission.

We have based the forward-looking statements in this report on our current expectations and beliefs concerning future events. Forward-looking statements contained in this report speak only as of the day they are made and, except as required by law, we undertake no obligation to update or revise any forward-looking statement, whether due to new information, future developments or otherwise.