Limbach director buys 1,940 shares at $51.35

A Limbach Holdings director increased his direct ownership with a 1,940-share open-market purchase.

Rhea-AI Filing Summary

Limbach Holdings, Inc. (LMB) director David Richard Gaboury purchased additional common stock in the company. On September 14, 2026, he bought 1,940 shares of common stock at $51.35 per share in an open-market or private transaction, bringing his directly held stake to 7,193 shares.

Insider Trade Summary

Net Buyer: 1,940 shares

Net Buy 1 txn

Insider Gaboury David Richard

Role Director

Bought 1,940 shs ($100K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	1,940	$51.35	$100K

Holdings After Transaction: Common Stock — 7,193 shares (Direct)

Key Figures

Shares purchased: 1,940 shares Purchase price per share: $51.35 per share Shares owned after transaction: 7,193 shares +1 more

4 metrics

Shares purchased 1,940 shares Common stock bought on September 14, 2026

Purchase price per share $51.35 per share Price for the September 14, 2026 purchase

Shares owned after transaction 7,193 shares Direct holdings of David Richard Gaboury after the purchase

Net buy shares 1,940 shares Net share change from reported transactions in this Form 4

Key Terms

Rule 10b5-1, open market or private transaction, beneficial ownership

3 terms

Rule 10b5-1 regulatory

"The Rule 10b5-1 checkbox is not affirmed for these transactions"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open market or private transaction financial

"Purchase in open market or private transaction is the code description"

beneficial ownership regulatory

"Form 4 reports changes in the insider's beneficial ownership of stock"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Limbach Holdings (LMB) report on this Form 4?

The filing reports that director David Richard Gaboury purchased 1,940 shares of Limbach Holdings common stock on September 14, 2026 in an open-market or private transaction at $51.35 per share.

How many Limbach Holdings (LMB) shares does David Richard Gaboury own after this transaction?

After the reported purchase, David Richard Gaboury directly owns 7,193 shares of Limbach Holdings common stock, as stated in the Form 4.

Was the Limbach Holdings (LMB) insider trade made under a Rule 10b5-1 plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed, and no footnote states that the September 14, 2026 purchase was made under a trading plan.

What price did the Limbach Holdings (LMB) director pay per share?

The director paid $51.35 per share for 1,940 shares of Limbach Holdings common stock in the reported transaction on September 14, 2026.

What is the role of David Richard Gaboury at Limbach Holdings (LMB)?

David Richard Gaboury is reported as a director of Limbach Holdings, Inc. on the Form 4 and is not listed as an officer or 10% owner in this filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/16/2026 - 04:04 PM Accepted by SEC EDGAR 09/16/2026 - 04:04 PM Learn about SEC filing dates

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).

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^*

Gaboury David Richard

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/14/2026

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	09/14/2026		P		1,940	A	$51.35	7,193	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 (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:

Remarks:

	/s/ Jeremiah G. Garvey, Attorney-in-Fact for David R. Gaboury	09/16/2026
	** 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)