As filed with the Securities and Exchange Commission on August 4, 2016

Registration No. 333-            

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

Under

The Securities Act of 1933

Alphabet Inc.

(Exact name of Registrant as specified in its charter)

1600 Amphitheatre Parkway

Mountain View, CA 94043

(650) 253-0000

(Address, including zip code, and telephone number, including

area code, of Registrant’s principal executive offices)

Alphabet Inc. 2012 Stock Plan

(Full title of the plan)

Larry Page

Chief Executive Officer

Alphabet Inc.

1600 Amphitheatre Parkway

Mountain View, CA 94043

(650) 253-0000

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

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

Calculation of Registration Fee

REGISTRATION OF ADDITIONAL SHARES PURSUANT TO GENERAL INSTRUCTION E

This Registration Statement on Form S-8 (the “Registration Statement”) is being filed by Alphabet Inc., a Delaware corporation (the “Registrant”), to register an additional 11,500,000 shares of its Class C capital stock, par value $0.001 per share, issuable to eligible employees, consultants, contractors and directors of the Registrant and its affiliates under the Registrant’s 2012 Stock Plan, as amended (the “Plan”). Accordingly, the contents of the previous Registration Statement on Form S-8 (File No. 333-207254) filed by the Registrant with the U.S. Securities and Exchange Commission (the “SEC”) on October 2, 2015 (the “Prior Registration Statement”) relating to the Plan, including periodic reports that we filed after the Prior Registration Statement to maintain current information about us, are incorporated by reference into the Registration Statement pursuant to General Instruction E of Form S-8. The Prior Registration Statement is currently effective.

The Index of Exhibits filed herewith and appearing immediately after the signature page to the Registration Statement is incorporated by reference in this Item 8.

SIGNATURES

Pursuant to the requirements of the Securities Act, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Mountain View, State of California, on August 4, 2016.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Larry Page, Ruth M. Porat, and David C. Drummond, and each of them acting individually, as his or her true and lawful attorney-in-fact, each with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities (unless revoked in writing), to sign any and all amendments (including post-effective amendments thereto) to the Registration Statement on Form S-8, and to file the same, with exhibits thereto and other documents in connection therewith, with the SEC, granting to such attorney-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that such attorney-in-fact and agents, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, the Registration Statement has been signed by the following persons in the capacities and on the dates indicated:

ALPHABET INC.

REGISTRATION STATEMENT ON FORM S-8

INDEX OF EXHIBITS