UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 13G

(Amendment No.   )*

Under the Securities Exchange Act of 1934

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

¨ Rule 13d-l(b)

¨ Rule 13d-l(c)

x Rule 13d-l(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 the disclosures provided in a prior cover page.

The information required in 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).

Item 1.

(a)   Name of Issuer

Esquire Financial Holdings, Inc.

(b)   Address of Issuer's Principal Executive Offices

100 Jericho Quadrangle

Suite 100

Jericho, New York 11753

Item 2.

(a)   Name of Persons Filing (the “Reporting Persons”)

(b)   Address of Principal Business Office or, if none, Residence

The Principal Business Office for CJA Private Equity Financial Restructuring Master Fund I, LP and CJA Private Equity Financial Restructuring GP I Ltd. is:

c/o Intertrust Group, 190 Elgin Avenue, George Town, Grand Cayman KY1-9005, Cayman Islands

The Principal Business Office for Gapstow Capital Partners LP, Christopher J. Acito & Associates GP LLC, Christopher J. Acito and Jack T. Thompson is:

c/o Gapstow Capital Partners, 654 Madison Avenue, Suite 601, New York, NY 10065

(c)   Citizenship

The information required by Item 2(c) is set forth in Row 4 of the cover page hereto for each Reporting Person and is incorporated herein by reference for each such Reporting Person.

(d)   Title of Class of Securities 

Common Stock, par value $0.01 per share

(e)   CUSIP Number 

29667J101

If filing as a non-U.S. institution in accordance with §240.13d-l(b)(l)(ii)(J), please specify the type of institution: ______________.

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)  Amount beneficially owned:  564,880 shares of Common Stock, par value $0.01 per share

Mr. Thompson has sole voting and investment power over 80 shares. Mr. Thompson is a member of CJA Private Equity Financial Restructuring GP I Ltd., the general partner of CJA Private Equity Financial Restructuring Master Fund I, LP, which holds an additional 564,800 shares of the Issuer’s common stock. CJA Private Equity Financial Restructuring GP I Ltd. has designated all voting rights to CJA Private Equity Financial Restructuring Master Fund I, LP’s Investment Manager, Gapstow Capital Partners LP. Mr. Thompson is an employee of Gapstow Capital Partners LP. Christopher J. Acito & Associates GP LLC (“CJA & Associates LLC”) is the Managing Member of CJA Private Equity Financial Restructuring GP I Ltd., and Christopher J. Acito (“Mr. Acito”) is the managing member of CJA & Associates LLC and the Chief Executive Officer of Gapstow Capital Partners LP.

(b)   Percent of class: 7.7%

The information with respect to percentage ownership is based on a total of 7,326,536 shares of Common Stock, par value $0.01 per share of Esquire Financial Holdings, Inc. outstanding as of November 1, 2017, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 14, 2017.

(c)

The information required by Item 4(c) is set forth in Rows 5-11 of the cover page hereto for each Reporting Person and is incorporated herein by reference for each such Reporting Person.

Not applicable.

Not applicable.

Not applicable.

Not applicable.

Not applicable.

Not applicable.

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.

EXHIBIT INDEX

EXHIBIT 1 to

SCHEDULE 13G

JOINT FILING AGREEMENT

PURSUANT TO SECTION 240.13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities, except to the extent that it knows or has reason to believe that such information is inaccurate.