13D Filing: Cable Car Capital LLC and Insignia Systems Inc (ISIG)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D/A

Under the Securities Exchange Act of 1934
(Amendment No. 4)^*

Insignia Systems, Inc.

(Name of Issuer)

Common Stock, $.01 par value

(Title of Class of Securities)

45765Y105

(CUSIP Number)

Jacob Haft Ma-Weaver Cable Car Capital LLC 1449 Washington Street #6 San Francisco, California 94109 (415) 857-1965

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

January 16, 2018

(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 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 240.13d-7(b) 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 (“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).