13D Filing: K Equity, LLC and Kemet Corp (KEM)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 13D/A

Under The Securities Exchange Act of 1934

(Amendment No. 3)*

KEMET Corporation

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

488360108

(CUSIP Number)

K Equity, LLC

c/o Platinum Equity Advisors, LLC

360 North Crescent Drive

South Building

Beverly Hills, California 90210

(310) 712-1195

with a copy to:

Justin W. Chairman, Esq.

Morgan Lewis & Bockius LLP

1701 Market Street

Philadelphia, PA 19103

(215) 963-5000

(Name, Address and Telephone Number of Person Authorized to Receive

Notices and Communications)

September 11, 2017

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule
13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of ss.240.13D-1(e),
240.13d-1(f) or 240.13d-1(g), check the following box ¨.

*   The remainder of this cover page shall be
filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent
amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page
shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”)
or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).