IMDZ Immune Design Corp.

As filed with the Securities and Exchange Commission on April 2, 2019

Registration No. 333-217831

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Post-Effective Amendment No. 1

to

FORM S-8

REGISTRATION STATEMENT NO. 333-217831

UNDER

THE SECURITIES ACT OF 1933

Immune Design Corp. 2014 Omnibus Incentive Plan

(Full title of the plan)

(Name and address of agent for service)

(206) 682-0645

(Telephone number, including area code, of agent for service)

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 7(a)(2)(B) of the Securities Act.  ☒

DEREGISTRATION OF SECURITIES

This Post-Effective Amendment No. 1 relates to the following Registration Statement on Form S-8 (the “Registration Statement”) filed by Immune Design Corp., a Delaware corporation (the “Company”) with the Securities and Exchange Commission:

Pursuant to the Agreement and Plan of Merger, dated as of February 20, 2019 (the “Merger Agreement”), by and among the Company, Merck Sharp & Dohme Corp., a New Jersey corporation (the “Parent”) and Cascade Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Parent (the “Purchaser”), the Purchaser merged with and into the Company, with the Company continuing as the surviving corporation and a direct wholly owned subsidiary of Parent. As a result of the transactions contemplated by the Merger Agreement, the Company has terminated all offerings of its securities pursuant to the Registration Statement and hereby removes and withdraws from registration all securities registered pursuant to the Registration Statement that remain unsold as of the date hereof. The Registration Statement is hereby amended, as appropriate, to reflect the deregistration of such securities.

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