Sec Form 4 Filing - SWETS LARRY G JR @ Limbach Holdings, Inc. - 2019-01-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person SWETS LARRY G JR 2. Issuer Name and Ticker or Trading Symbol Limbach Holdings, Inc. [ LMB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 150 PIERCE ROAD, 6TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/01/2019 (Street) ITASCA, IL60143 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/01/2019 M 1,066 A 12,132 D Common Stock 01/01/2019 M 1,066 A 13,198 D Common Stock 2,343,515 I See Footnote ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units ( 1 ) 01/01/2019 M 1,066 ( 3 ) ( 3 ) Common Stock 1,066 $ 0 4,268 D Restricted Stock Units ( 1 ) 01/01/2019 M 1,066 ( 4 ) ( 4 ) Common Stock 1,066 $ 0 3,200 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SWETS LARRY G JR 150 PIERCE ROAD, 6TH FLOOR ITASCA, IL60143 X X Signatures /s/ Elliott M. Smith, Attorney-in-Fact for Larry G. Swets, Jr. 01/03/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3. ( 2 )The securities are held directly by 1347 Investors LLC ("1347 Investors"). Larry G. Swets, Jr. is a manager of 1347 Investors and shares voting and dispositive control over the securities held by 1347 Investors. Accordingly, Larry G. Swets, Jr. may be deemed to share beneficial ownership over the securities held directly by 1347 Investors. Each of the Reporting Persons disclaims beneficial ownership of such securities except to the extent of its or his pecuniary interest therein, and this Report shall not be deemed an admission that the Reporting Persons are the beneficial owners of the securities for purposes of Section 16 or for any other purpose. ( 3 )This award of RSUs was granted on 08/30/2017. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2018, January 1, 2019 and January 1, 2020, subject to continued service through the applicable vesting date. ( 4 )This award of RSUs was granted on 04/13/2018. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2019, January 1, 2020 and January 1, 2021, subject to continued service through the applicable vesting date.

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