LMB Limbach Holdings Inc

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 OF SECURITIES                                                                                   
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response... 0.5                       
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * Horowitz Joshua	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 _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) C/O PALM MANAGEMENT (US) LLC, 19 WEST ELM STREET	3. Date of Earliest Transaction (MM/DD/YYYY) 9/24/2020
(Street) GREENWICH, CT 06830 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	9/24/2020		P		4825	A	$7.7429 (2)	142125 (1)	I	By Palm Global Small Cap Master Fund LP
Common Stock	9/25/2020		P		28937	A	$8.1360 (3)	171062 (1)	I	By Palm Global Small Cap Master Fund LP
Common Stock								16000	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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	(4)							(4)	(4)	Common Stock	2933		2933	D

Explanation of Responses:
(1)	The reported shares are owned directly by Palm Global Small Cap Master Fund LP (the "Fund"). Palm Management (US) LLC ("Palm Management"), as the investment manager of the Fund, may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his positions with the Fund and Palm Management, Mr. Joshua S. Horowitz may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his position with Palm Management, Mr. Bradley C. Palmer may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Messrs. Palmer and Horowitz disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interest therein.
(2)	The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.7025 and $7.85 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.
(3)	The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.95 and $8.20 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.
(4)	Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock. This award of RSUs was granted on April 3, 2020. The award is subject to service-based vesting conditions and vests 27.241732% on January 1, 2021 and 36.379134% on each of January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Horowitz Joshua C/O PALM MANAGEMENT (US) LLC 19 WEST ELM STREET GREENWICH, CT 06830	X
Palm Management (US) LLC C/O PALM MANAGEMENT (US) LLC 19 WEST ELM STREET GREENWICH, CT 06830	X
Palm Global Small Cap Master Fund LP C/O PALM MANAGEMENT (US) LLC 19 WEST ELM STREET GREENWICH, CT 06830	X
Palmer Bradley C C/O PALM MANAGEMENT (US) LLC 19 WEST ELM STREET GREENWICH, CT 06830				Director by Deputization

Signatures
/s/ Joshua S. Horowitz		9/28/2020
**Signature of Reporting Person		Date
PALM MANAGEMENT (US) LLC, /s/ Joshua S. Horowitz, Portfolio Manager		9/28/2020
**Signature of Reporting Person		Date
PALM GLOBAL SMALL CAP MASTER FUND LP, by Palm Global Small Cap Fund GP, Ltd., its general partner, /s/ Joshua S. Horowitz, Director		9/28/2020
**Signature of Reporting Person		Date
/s/ Bradley C. Palmer		9/28/2020
**Signature of Reporting Person		Date