SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. ___)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐	Rule 13d-1(b)

☒	Rule 13d-1(c)

☐	Rule 13d-1(d)

* 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).

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Introductory Note

This Schedule 13G amends and supplements the Schedule 13D (the "Original Schedule 13D" and together with Amendment No. 1 filed April 1, 2015, Amendment No. 2 filed April 6, 2015, Amendment No. 3 filed April 9, 2015, Amendment No. 4 filed April 13, 2015, Amendment No. 5 filed April 21, 2015, Amendment No. 6 filed April 22, 2015, Amendment No. 7 filed April 23, 2015, Amendment No. 8 filed May 4, 2015, Amendment No. 9 filed May 6, 2015, Amendment No. 10 filed May 11, 2015 and Amendment No. 11 filed May 21, 2015, the "Schedule 13D") filed by Kevin M. Casey, a United States citizen, Casey Capital, LLC, a Delaware limited liability company ("Casey Capital"), and KC Gamma Opportunity Fund, LP, a Delaware limited partnership (the "KC Gamma Opportunity Fund"), on February 26, 2015. All capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the Schedule 13D.

Essex Rental Corp.

1110 Lake Cook Road, Suite 220

Buffalo Grove, Illinois 60089

Casey Capital, LLC

Kevin M. Casey

KC Gamma Opportunity Fund, LP

c/o Casey Capital, LLC

112 Route 39 North

Sherman, Connecticut 06784

Telephone Number: 646-825-4630

Casey Capital, LLC - Delaware

Kevin M. Casey – United States of America

KC Gamma Opportunity Fund, LP - Delaware

Common Stock, par value $0.0001 per share

297187106

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

Not applicable

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(a)	Amount beneficially owned:

Casey Capital, LLC – 1,461,634

Kevin M. Casey – 1,462,634

KC Gamma Opportunity Fund, LP – 1,461,634

(b)	Percent of class:

Casey Capital, LLC – 5.9%

Kevin M. Casey – 5.9%

KC Gamma Opportunity Fund, LP – 5.9%

(c)	Number of shares as to which the person has:

Casey Capital, LLC

(i)	Sole power to vote or to direct the vote:  0

(ii)	Shared power to vote or to direct the vote: 1,461,634

(iii)

Sole power to dispose or to direct the disposition of:  0

(iv)	Shared power to dispose or to direct the disposition of:  1,461,634

Kevin M. Casey

(v)	Sole power to vote or to direct the vote:  1,000

(vi)	Shared power to vote or to direct the vote:  1,461,634

(vii)

Sole power to dispose or to direct the disposition of:  1,000

(viii)

Shared power to dispose or to direct the disposition of:  1,461,634

KC Gamma Opportunity Fund, LP

(ix)	Sole power to vote or to direct the vote:  0

(x)	Shared power to vote or to direct the vote:  1,461,634

(xi)	Sole power to dispose or to direct the disposition of:  0

(xii)

Shared power to dispose or to direct the disposition of:  1,461,634

Not applicable

Not applicable

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Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

Not applicable

Not applicable

See attached Exhibit A

(c) By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under U.S.C. § 240.14a-11.

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SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.