13D Filing: Schorr Marvin G and Sevcon Inc. (SEV)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

SCHEDULE 13D

Under the Securities Exchange Act of
1934

(Amendment No. 6)*

 

 

 

Sevcon,
Inc.

(Name of Issuer)

 

 

Common Stock $0.10 Par Value Per Share

(Title of Class of Securities)

 

 

81783K108

(CUSIP Number)

 

 

Matthew C. Dallett
Locke Lord LLP
111 Huntington Avenue

Boston, MA 02199
(617) 239-0100

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

 

 

September 27, 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 Sections 240.13d-1(e),
240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note: Schedules filed in paper format shall include a
signed original and five copies of the schedule, including all exhibits. See Section 240.13d-7 for other parties to whom copies
are to be sent.

* 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, as amended
(“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).