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): June 23, 2020

Eagle Pharmaceuticals, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (201) 326-5300

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:

¨ 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:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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. ¨

Eagle Pharmaceuticals, Inc., or the Company, held its 2020 annual meeting of stockholders, or the Annual Meeting, on June 23, 2020, at which a quorum was present. At the Annual Meeting, the stockholders of the Company voted on the below proposals, each of which is described in more detail in the Company’s definitive proxy statement on Schedule 14A, or the 2020 Proxy Statement, filed with the U.S. Securities and Exchange Commission on April 29, 2020. The following sets forth the certified voting results, including the number of votes cast for and against each matter, and if applicable, the number of abstentions and broker non-votes with respect to each matter.

(i) The stockholders elected two directors to serve as members of the Company’s board of directors until the 2023 annual meeting of stockholders. The stockholders present in person or by proxy cast the following numbers of votes in connection with the election of directors, resulting in the election of both director nominees.

(ii) The stockholders ratified the selection by the audit committee of the Company’s board of directors of BDO USA, LLP as the independent registered public accounting firm of the Company for fiscal year 2020. There were 12,277,095 votes cast for the proposal; 94,229 votes cast against the proposal; 127,891 abstentions; and there were no broker non-votes.

(iii) The stockholders approved, on an advisory basis, the compensation of the Company’s named executive officers, as disclosed in the 2020 Proxy Statement. There were 6,399,502 votes cast for the proposal; 5,228,026 votes cast against the proposal; 127,374 abstentions; and there were 744,313 broker non-votes.

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.