Limbach (LMB) COO reports 3,507 shares and staged RSU vesting

Rhea-AI Filing Summary

Limbach Holdings, Inc. Chief Operating Officer Michael James Reed has reported his initial ownership on a Form 3. He directly holds 3,507 shares of common stock, which include awards of restricted stock units (RSUs) granted between January 1, 2024 and January 1, 2026.

These RSUs are subject to service-based vesting conditions and are scheduled to vest in the aggregate as follows: 689 shares on January 1, 2027, 468 shares on January 1, 2028, and 268 shares on January 1, 2029. Any performance-based and market-based RSUs that may be earned are not included and will be reported separately on a Form 4 after performance goals are determined.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Reed Michael James

Role Chief Operating Officer

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 3,507 shares (Direct, null)

Footnotes (1)

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Key Figures

Total common shares held: 3,507 shares RSUs vesting 2027: 689 shares RSUs vesting 2028: 468 shares +1 more

4 metrics

Total common shares held 3,507 shares Direct ownership reported on Form 3

RSUs vesting 2027 689 shares Service-based RSUs vest on January 1, 2027

RSUs vesting 2028 468 shares Service-based RSUs vest on January 1, 2028

RSUs vesting 2029 268 shares Service-based RSUs vest on January 1, 2029

Key Terms

restricted stock units, service-based vesting conditions, performance-based RSUs, market-based RSUs, +1 more

5 terms

restricted stock units financial

"The amount of common stock includes awards of restricted stock units (each, an "RSU") granted on January 1, 2024..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

service-based vesting conditions financial

"Each RSU is subject to service-based vesting conditions."

performance-based RSUs financial

"The amount of common stock does not include performance-based and market-based RSUs, if any, that may be earned..."

Performance-based restricted stock units (RSUs) are promises to deliver company shares to employees only if the business meets specific goals, such as revenue, profit, stock-price targets, or strategic milestones. For investors, they matter because they change future share supply and align management incentives with company results—like a salesperson whose bonus only pays out when sales targets are hit—so they can affect earnings, dilution, and confidence in leadership.

market-based RSUs financial

"The amount of common stock does not include performance-based and market-based RSUs, if any, that may be earned..."

Rule 16b-3(d)(1) and (3) regulatory

"Each RSU represents a contingent right to receive one share of ... common stock, exempt under Rule 16b-3(d)(1) and (3)."

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Reed Michael James

(Last) (First) (Middle)

5102 W LAUREL STREET, SUITE 700

(Street)

TAMPA FLORIDA 33607

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/18/2026

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

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	3,507(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The amount of common stock includes awards of restricted stock units (each, an "RSU") granted on January 1, 2024, January 1, 2025, May 1, 2025, and January 1, 2026. Each RSU represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3(d)(1) and (3). Each RSU is subject to service-based vesting conditions. The RSUs vest, in the aggregate, as follows: 689 shares on January 1, 2027, 468 shares on January 1, 2028, and 268 shares on January 1, 2029. The amount of common stock does not include performance-based and market-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievements of the applicable performance goals. Any such performance-based and market-based RSUs will be reported on a Form 4 within two business days of the date of such determination.

Remarks:

See Exhibit 24.1 - Power of Attorney

	/s/ Dan Murtha, Attorney-in-fact for Michael J. Reed	05/20/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What insider position did Limbach (LMB) report for Michael James Reed?

Limbach reported that Chief Operating Officer Michael James Reed directly holds 3,507 shares of common stock. This total includes time-based restricted stock units granted from 2024 through 2026 that convert into shares when their service-based vesting conditions are met.

What RSU grants are included in Michael James Reed's Limbach (LMB) holdings?

His reported holdings include RSU awards granted on January 1, 2024, January 1, 2025, May 1, 2025, and January 1, 2026. Each RSU represents a contingent right to receive one share of Limbach common stock, subject to service-based vesting requirements over time.

How and when do Michael James Reed's Limbach (LMB) RSUs vest?

The RSUs vest based on continued service in three scheduled installments: 689 shares on January 1, 2027, 468 shares on January 1, 2028, and 268 shares on January 1, 2029. Each vested RSU entitles him to receive one share of Limbach common stock.

Are performance-based RSUs included in Michael James Reed's reported Limbach (LMB) holdings?

Performance-based and market-based RSUs are not included in the reported 3,507 shares. Those awards will only be reported after the Compensation Committee determines achievement of performance goals, at which point they will appear on a Form 4 within two business days.

Under what rule are Michael James Reed's Limbach (LMB) RSUs exempt?

The RSU awards are stated to be exempt under Rule 16b-3(d)(1) and (3). This rule generally provides exemptions from certain short-swing profit rules for equity compensation granted by an issuer to its officers and directors, when specific board or committee approval conditions are satisfied.