What is the 13F Pro Quality Score for LMB?

13F Pro ranks Limbach Holdings, Inc. (LMB) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View LMB's current score at https://13fpro.ai/research/LMB (free sign-up required for the full ranking).

Which hedge funds own the most LMB stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of LMB include WASATCH ADVISORS, BlackRock,, Capital International Investors. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/LMB as soon as new 13F filings post.

Where does 13F Pro source LMB data?

All Limbach Holdings, Inc. fundamentals and ownership data come directly from SEC EDGAR. Limbach Holdings, Inc. files with the SEC under CIK 1606163. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is LMB in?

Limbach Holdings, Inc. (LMB) is classified in the Industrials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/industrials.

How often is LMB research updated on 13F Pro?

LMB's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

Limbach Holdings, Inc.(LMB)Stock Analysis

AI analysis on 2,800+ stocks →Deep AI analysis on 2,800+ stocks →

Industrials →Nasdaq

Institutional-grade research for retail investors

SEC EDGAR: CIK 1606163 LMB stock profile & AI dashboard →

13F Pro Quality Score

56.5/100

Rank #1,096 of 2,879 stocksTOP 50%

View Industrials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

66.1/100

Profitability

53.7/100

Balance Sheet

82.3/100

Earnings Quality

64.0/100

Free Cash Flow

36.7/100

Institutional Flow

55.0/100

Revenue Scale

39.8/100

Dilution Risk

55.0/100

LMB Stock Analysis & AI Quality Score

AI stock analysis and institutional research for Limbach Holdings, Inc. (LMB), a Industrials sector company. 13F Pro's AI-powered ranking engine scores LMB at 56.5/100 on a 32-signal composite quality model, placing it at rank #1,096 of 2,879 stocks — the top half of the AI-ranked universe. LMB scores in the top quartile across balance sheet strength (82.3). Areas of concern include free cash flow (36.7) and revenue scale (39.8), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), Limbach Holdings, Inc. reports quarterly revenue of $138.9M, net income of $4.4M, free cash flow of $-8.2M. Top institutional holders of LMB by reported 13-F value include WASATCH ADVISORS, BlackRock,, Capital International Investors, based on the most recent SEC filings. LMB trades on the Nasdaq exchange and files with the SEC under CIK 1606163. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate LMB daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for Limbach Holdings, Inc. directly from SEC EDGAR. Limbach Holdings, Inc.'s 13F Pro composite quality score has ranged between 46 and 61 since 2023, currently 56.5 — an improving long-term trajectory across 18 quarterly and live scoring snapshots.

✦

Fun facts about Limbach Holdings, Inc.

Quirks, history, and lore behind LMB — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. industrial services company · listed on Nasdaq · operates in the mechanical and electrical building systems space · headquartered in Pennsylvania.
2
The Numbers
Annual revenue in the range of $400–500 million — small-cap territory — with a business split between owner-direct and general contractor project channels.
3
The History
Founded in 1916, it spent over a century as a mechanical contractor before going public and executing a strategic pivot toward higher-margin service relationships with building owners.
4
The Secret
Its big strategic play is shifting revenue away from volatile construction bids toward recurring facility services — think long-term HVAC and plumbing service contracts rather than one-and-done projects.
5
The Lore
It runs operations out of dozens of branch offices across the U.S., fixing the guts of hospitals, universities, and industrial facilities — the kind of company you've definitely benefited from without ever knowing its name.
6
The Giveaway
Its ticker is three letters that sound like a London financial benchmark, but this company is all about pipes, ducts, and mechanical systems — and it's been keeping buildings breathing since Woodrow Wilson was president.

▶ Think you know your stocks? Play the Daily Ticker

Revenue

Q1 2026

$138.9M

Net Income

Q1 2026

$4.4M

Free Cash Flow

Q1 2026

$-8.2M

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+5.8% YoY

$518.8MFY 2024

FY19 $553.3MFY20 $568.2MFY21 $490.4MFY24 $518.8M

Net Income

+359.9% YoY

$30.9MFY 2024

FY19 $-1.8MFY20 $5.8MFY21 $6.7MFY24 $30.9M

Operating Income

+176.1% YoY

$38.6MFY 2024

FY19 $8.1MFY20 $17.2MFY21 $14.0MFY24 $38.6M

EPS (Diluted)

+289.4% YoY

$2.57FY 2024

FY19 $-0.23FY20 $0.72FY21 $0.66FY24 $2.57

Total Assets

+31.6% YoY

$352.1MFY 2024

FY19 $261.6MFY20 $262.2MFY21 $267.5MFY24 $352.1M

Total Debt

-39.1% YoY

$30.2MFY 2024

FY19 $49.9MFY20 $49.6MFY21 $49.6MFY24 $30.2M

Op. Cash Flow

+251.8% YoY

$36.8MFY 2024

FY19 $-926.0KFY20 $39.8MFY21 $-24.2MFY24 $36.8M

Metric	FY 2024	FY 2021	FY 2020	FY 2019	FY 2018	FY 2017
Revenue	$518.8M +5.8%	$490.4M -13.7%	$568.2M +2.7%	$553.3M +1.2%	$546.5M +12.5%	$485.7M
Net Income	$30.9M +359.9%	$6.7M +15.6%	$5.8M +427.2%	$-1.8M +3.8%	$-1.8M -359.1%	$712.0K
Operating Income	$38.6M +176.1%	$14.0M -18.4%	$17.2M +112.7%	$8.1M +653.9%	$1.1M -82.2%	$6.0M
EPS (Diluted)	$2.57 +289.4%	$0.66 -8.3%	$0.72 +413.0%	$-0.23 +55.8%	$-0.52 -300.0%	$-0.13
Total Assets	$352.1M +31.6%	$267.5M +2.0%	$262.2M +0.2%	$261.6M +3.1%	$253.6M +19.1%	$213.0M
Total Debt	$30.2M -39.1%	$49.6M -0.0%	$49.6M -0.5%	$49.9M +7.2%	$46.5M +38.9%	$33.5M
Operating Cash Flow	$36.8M +251.8%	$-24.2M -160.9%	$39.8M +4399.7%	$-926.0K -103.7%	$25.3M +722.9%	$-4.1M

AI Insight: LMB Financial Trends

Revenue surged 38% in Q3 2025 to $185M but operating performance collapsed in Q1 2026 with $1M operating income and negative $8M cash flow.

• Revenue jumped from $142M in Q2 2025 to $185M in Q3 2025, maintaining elevated levels through Q4 2025 at $187M.

• Total debt increased from $37M in Q2 2025 to $67M in Q3 2025, ending at $62M in Q1 2026.

• Operating income fell sharply from $18M in Q4 2025 to just $1M in Q1 2026.

⚠ Operating cash flow turned negative at -$8M in Q1 2026 after positive $28M in Q4 2025.

⚠ Revenue volatility with Q1 2026 dropping to $139M from $187M peak in Q4 2025.

AI Insight: LMB Ratio Trends

Operating margin collapsed from 9.4% in Q4 2025 to just 0.8% in Q1 2026, driving ROIC down to 1.8%.

• Operating margin fell sharply from 9.4% in Q4 2025 to 0.8% in Q1 2026.

• ROIC plummeted from 29.7% in Q4 2025 to 1.8% in Q1 2026.

• ROE dropped from 25.1% in Q4 2025 to 8.9% in Q1 2026.

• Debt-to-equity ratio increased from 0.21 in Q4 2025 to 0.31 in Q1 2026.

⚠ Q1 2026 represents the weakest profitability quarter in the dataset across all metrics.

⚠ Whether Q1 weakness reflects seasonal patterns or operational deterioration given prior Q4 strength.

Get alerted when LMB's score changes

Free account: watchlist tracking, the daily AI brief, and the AI screener.

Passwordless sign-in · Payments by Stripe · Auth by Clerk

Available Research

13F Pro tracks comprehensive data for Limbach Holdings, Inc. including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of LMB

WASATCH ADVISORS LP
$75.7M969,639 sh
BlackRock, Inc.
$66.1M846,865 sh
Capital International Investors
$64.3M823,702 sh
FMR LLC
$54.8M701,918 sh
VANGUARD CAPITAL MANAGEMENT LLC
$36.1M462,766 sh
ROYCE & ASSOCIATES LP
$29.7M380,764 sh
NEUMEIER POMA INVESTMENT COUNSEL LLC
$24.5M313,938 sh
CORSAIR CAPITAL MANAGEMENT, L.P.
$24.3M311,343 sh
GEODE CAPITAL MANAGEMENT, LLC
$21.3M272,472 sh
DIMENSIONAL FUND ADVISORS LP
$20.7M265,771 sh

Fund	Value	Shares
WASATCH ADVISORS LP	$75.7M	969,639
BlackRock, Inc.	$66.1M	846,865
Capital International Investors	$64.3M	823,702
FMR LLC	$54.8M	701,918
VANGUARD CAPITAL MANAGEMENT LLC	$36.1M	462,766
ROYCE & ASSOCIATES LP	$29.7M	380,764
NEUMEIER POMA INVESTMENT COUNSEL LLC	$24.5M	313,938
CORSAIR CAPITAL MANAGEMENT, L.P.	$24.3M	311,343
GEODE CAPITAL MANAGEMENT, LLC	$21.3M	272,472
DIMENSIONAL FUND ADVISORS LP	$20.7M	265,771

More Industrials Companies

View all Industrials →

AADX

Applied Aerospace & Defense, Inc.

AAL

American Airlines Group Inc.

AAON

AAON, INC.

ABM

ABM INDUSTRIES INC /DE/

ACA

Arcosa, Inc.

ACHR

Archer Aviation Inc.

ACLS

AXCELIS TECHNOLOGIES INC

ACMR

ACM Research, Inc.

Put LMB on your watchlist

Track score changes the day Limbach Holdings, Inc. files with the SEC, follow the hedge funds that own it, screen 2,800+ AI-scored stocks, and get the daily brief — free.

View Pricing

Free tier includes 13F data, economic indicators, and market overview. Pro starts at $6.67/mo (billed annually).

Passwordless sign-in · Payments by Stripe · Auth by Clerk

Popular Research

AAPL

Apple

MSFT

Microsoft

NVDA

NVIDIA

GOOG

Alphabet

AMZN

Amazon

Is LMB a good stock to buy?

13F Pro's AI-powered analysis of Limbach Holdings, Inc. (LMB) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Industrials sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for LMB are available on the LMB stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own LMB?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling LMB. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of Limbach Holdings, Inc.'s investment landscape.