Filing Details

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ________)* Limbach Holdings, Inc. (Name of Issuer) Common (Title of Class of Securities) 53263P105 (CUSIP Number) Tom Parkhurst 11747 NE 8th St Suite 205 Bellevue, WA 98005 425 455-0816 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) 12/31/2018 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: X 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).

CUSIP No. 53263P105 13G Page 2 of 7 Pages1. NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) AltraVue Capital, LLC 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) ? (b) ? 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, USNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 279,614 6. SHARED VOTING POWER 00,000 7. SOLE DISPOSITIVE POWER 481,083 8. SHARED DISPOSITIVE POWER 00,0009. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 481,083 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) ? 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.34% 12. TYPE OF REPORTING PERSON (see instructions) IACUSIP No. 53263P105 13G Page 3 of 7 PagesItem 1. (a) Name of Issuer Limbach Holdings, Inc.(b) Address of Issuer?s Principal Executive Offices 1251 Waterfront Place Suite 201 Pittsburgh, PA 15222 Item 2. (a) Name of Person Filing AltraVue Capital, LLC(c) Citizenship USA(d) Title of Class of Securities Common(e) CUSIP Number 53263P105 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: (a) ? Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).(b) ? Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).(c) ? Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).(d) ? Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).(e) X An investment adviser in accordance with ?240.13d- 1(b)(1)(ii)(E);(f) ? An employee benefit plan or endowment fund in accordance with ?240.13d-1(b)(1)(ii)(F);(g) ? A parent holding company or control person in accordance with ?240.13d-1(b)(1)(ii)(G);(h) ? A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);(i) ? A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);Item 4. Ownership. 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: 481,083(b) Percent of class: 6.34%(c) Number of shares as to which the person has:(i) Sole power to vote or to direct the vote 279,614.(ii) Shared power to vote or to direct the vote 0.(iii) Sole power to dispose or to direct the disposition of 481,083.(iv) Shared power to dispose or to direct the disposition of 0.Instruction. For computations regarding securities which represent a right to acquire an underlying security see ?240.13d-3(d)(1). Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ?. Instruction. Dissolution of a group requires a response to this item. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company. Item 8. Identification and Classification of Members of the Group. Item 9. Notice of Dissolution of Group. Item 10. Certification.By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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.(b) The following certification shall be included if the statement is filed pursuant to ?240.13d-1(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.CUSIP No. 53263P105 13G Page 7 of 7 Pages 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. 01/16/2019 Date /s/ Tom Parkhurst Signature Tom Parkhurst / COO, CCO Name/Title