[Form 4] Limbach Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Limbach Holdings Chief Financial Officer Jayme L. Brooks reported open-market sales of company stock under a pre-arranged Rule 10b5-1 trading plan. On March 17, 2026, she sold a total of 9,910 shares of common stock in multiple transactions at weighted average prices ranging from $77.1047 to $81.4030 per share. Following these sales, Brooks directly holds 140,750 shares of Limbach common stock and has an additional 3,897 shares reported as indirectly held through the Brooks Family Trust, for which she disclaims beneficial ownership except to the extent of her pecuniary interest.

Insights

Insider trading and governance analyst

CFO’s sales are pre-planned under a 10b5-1 plan, with sizable holdings retained.

The filing shows Jayme L. Brooks, CFO of Limbach Holdings, executed open-market sales totaling 9,910 common shares on March 17, 2026. Sale prices were reported as weighted averages between $77.1047 and $81.4030 per share across several trade brackets.

A footnote states these transactions are part of a Rule 10b5-1 trading plan adopted on December 16, 2025, indicating they were pre-scheduled rather than opportunistic. After these sales, Brooks directly owns 140,750 shares and has 3,897 shares reported as indirectly held through the Brooks Family Trust, where she disclaims beneficial ownership beyond any pecuniary interest.

Because the trades are pre-planned and the CFO maintains a substantial remaining position, this filing typically reads as routine portfolio management rather than a clear shift in insider sentiment. Future company filings may give additional context on ongoing 10b5-1 activity.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Brooks Jayme L.

(Last) (First) (Middle)

5102 W LAUREL STREET, SUITE 700

(Street)

TAMPA FLORIDA 33607

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Limbach Holdings, Inc. [ LMB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	03/17/2026		S		2,637(1)	D	$77.1047(2)	148,023	D
Common Stock	03/17/2026		S		4,167(1)	D	$78.0702(3)	143,856	D
Common Stock	03/17/2026		S		460(1)	D	$78.8042(4)	143,396	D
Common Stock	03/17/2026		S		1,546(1)	D	$80.2808(5)	141,850	D
Common Stock	03/17/2026		S		1,100(1)	D	$81.403(6)	140,750	D
Common Stock								3,897	I	By Brooks Family Trust(7)

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		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: 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

Explanation of Responses:

1. This transaction is part of a 10b5-1 plan adopted on December 16, 2025 by the reporting person.

2. This transaction was executed in multiple trades at prices ranging from $76.57 to $77.56. The price reported above reflects the weighted average price. The reporting person hereby undertakes 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 sold at each separate price.

3. This transaction was executed in multiple trades at prices ranging from $77.57 to $78.54. The price reported above reflects the weighted average price. The reporting person hereby undertakes 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 sold at each separate price.

4. This transaction was executed in multiple trades at prices ranging from $78.57 to $79.17. The price reported above reflects the weighted average price. The reporting person hereby undertakes 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 sold at each separate price.

5. This transaction was executed in multiple trades at prices ranging from $79.99 to $80.74. The price reported above reflects the weighted average price. The reporting person hereby undertakes 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 sold at each separate price.

6. This transaction was executed in multiple trades at prices ranging from $81.16 to $81.87. The price reported above reflects the weighted average price. The reporting person hereby undertakes 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 sold at each separate price.

7. Shares held by the Brooks Family Trust. The reporting person and her spouse are trustees of the Brooks Family Trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein, and the inclusion of these securities in this report will not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Remarks:

	/s/ Jeremiah G. Garvey, Attorney-in-Fact for Jayme L. Brooks	03/18/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)