UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

For Registration of Certain Classes of Securities

Pursuant to Section 12(b) or 12(g) of the

Securities Exchange Act of 1934

Securities to be Registered Pursuant to Section 12(b) of the Act

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates: None

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

                           Not applicable                          

(Title of class)

The description of the common stock, $0.001 par value per share, of Inphi Corporation (the “Registrant”) as set forth under the caption “Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934” in Exhibit 4.2 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2019 (File No. 001-34942), is hereby incorporated by reference.

In accordance with the “Instructions as to Exhibits” with respect to Form 8-A, no exhibits are required to be filed as part of this registration statement because no other securities of the Registrant are registered on Nasdaq and the securities registered hereby are not being registered pursuant to Section 12(g) of the Exchange Act.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.