Sec Form 4 Filing - Bacon Charles A. III @ Limbach Holdings, Inc. - 2019-12-10

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 Bacon Charles A. III 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 _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) 1251 WATERFRONT PL, STE 201 3. Date of Earliest Transaction (MM/DD/YY) 12/10/2019 (Street) PITTSBURGH, PA15222 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 12/10/2019 P( 1 )( 2 ) 5,000 A $ 2.7198 362,331 D

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bacon Charles A. III 1251 WATERFRONT PL, STE 201 PITTSBURGH, PA15222 X President and CEO Signatures /s/ Jeremiah G. Garvey, Attorney-in-Fact for Charles A. Bacon III 12/12/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person previously reported the purchase of 30,000 shares of the Issuer's common stock on December 6, 2019 (the "12/6/19 Purchase"). The 12/6/19 Purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 7,260 shares of such common stock, with the Reporting Person's sale of 7,260 shares of the Issuer's common stock at a price of $4.75 per share on August 21, 2019. Upon settlement of the 12/6/19 Purchase, the Reporting Person paid the Issuer $14,516.37, representing the full amount of the profit realized for Section 16 purpose in connection with the short-swing transactions. ( 2 )The purchase of 5,000 shares of the Issuer's common stock on December 10, 2019 is also matachable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 5,000 shares, with the Reporting Person's sale of 5,000 shares of the Issuer's common stock at a price of $4.75 per share on August 21, 2019. The Reporting Person has agreed to pay the Issuer, upon settlement of the purchases, $10,151.00, representing the full amount of the profit realized for Section 16 purposes in connection with the short-swing transaction, of which $9,989.36 was previously paid upon settlement of the 12/6/19 Purchase.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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