Joshua Horowitz - 01 Jan 2026 Form 4 Insider Report for Limbach Holdings, Inc. (LMB)

Reporting relationship: Director
Issuer ticker: LMB
Reported as of: 01 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Jan 2026, 16:49:25 UTC
Prior SEC filing: 18 Dec 2025
Next SEC filing: 27 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeremiah G. Garvey, Attorney-in-Fact for Joshua S. Horowitz

Key filing fact

Joshua Horowitz filed Form 4 for Limbach Holdings, Inc. (LMB) on 05 Jan 2026.

Key facts

This page summarizes Joshua Horowitz's Form 4 filing for Limbach Holdings, Inc. (LMB).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 05 Jan 2026, 16:49.

Change

Previous filing in this sequence was filed on 18 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001612424 Primary reporting owner

Horowitz Joshua

Relationship: Director
Address: 797 COMMONWEALTH DRIVE, WARRENDALE
Signature: /s/ Jeremiah G. Garvey, Attorney-in-Fact for Joshua S. Horowitz
Signature date: 05 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LMB transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +956
Change %: +2.3%
Price: $0.000000
Shares after: 42,785
Date: 01 Jan 2026
Ownership: Direct

LMB holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 164,600
Date: 01 Jan 2026
Ownership: Palm Global Small Cap Master Fund LP
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

LMB transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -956
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 01 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 956
Exercise price
Footnotes: F2, F3

LMB transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +1,498
Change %
Price: $0.000000
Shares after: 1,498
Date: 01 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,498
Exercise price
Footnotes: F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Palm Management (US) LLC, as the investment manager of Palm Global Small Cap Master Fund LP ("Palm Global"), may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by Palm Global. Due to his positions as a portfolio manager and special limited partner of Palm Global and as an employee of Palm Management (US) LLC, Mr. Horowitz may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by Palm Global. Palm Management (US) LLC and Mr. Horowitz expressly disclaim such beneficial ownership except to the extent of their pecuniary interest therein.

Footnote F2

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.

Footnote F3

This award of RSUs was granted on January 1, 2025. The RSUs cliff vested on January 1, 2026.

Footnote F4

This award of RSUs was granted on January 1, 2026. The RSUs are scheduled to cliff vest on January 1, 2027.