LMB at a glance
Limbach Holdings, Inc. (LMB, SEC CIK 1606163) filed its latest 10-K annual report on March 2, 2026, a 10-Q quarterly report on August 4, 2026, an 8-K current report on September 9, 2026 and Form 4 insider filings as recently as September 17, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 31, 2025 (FY2025), Limbach Holdings, Inc. (LMB) reported revenue of $646.8 million (up 24.7% from FY2024) and net income of $39.1 million. Diluted EPS was $3.23.
- As of June 30, 2026, 27 institutional investment managers tracked by SignalX reported holding Limbach Holdings, Inc. (LMB) shares worth $292.3 million in 13F-HR filings.
- The most recent insider open-market purchase reported on Form 4 was by Horowitz Joshua on September 15, 2026 of 662 shares at $51.25 per share.
- In the last 90 days, LMB insiders reported 7 open-market purchases ($516K) and 1 open-market sale ($256K) on Form 4, a net purchase of $260K.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $646.8M
- +24.7% vs prior year
- Insiders · 90 days
- 7 buys · 1 sell
- Net +$260K
- 13F holders
- 27 funds
- $292.3M · +0 vs prior quarter
- Latest 8-K
- Sep 9, 2026
- Item 1.01
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Dec 31, 2025
Business Overview
- Core business: Design, delivery, and maintenance of MEPC systems for mission-critical facilities in healthcare, industrial, data centers, life sciences, higher education, and entertainment
- New emphasis: Expanded ODR segment revenue target achieved at 75.1% of total, with 40.6% YoY growth driven by acquisitions and organic growth
- Strategic shift: Continued shift from GCR to higher margin ODR business, with GCR revenue down 7.0% but margins improved to 24.5%
- Quantitative highlight: Record revenue $646.8 million and gross profit $169.3 million; notable acquisition of Pioneer Power expanding geographic footprint
- Noteworthy fact: Pioneer Power acquisition completed July 2025, expanding presence into upper Midwest and broadening industrial and healthcare market reach
Risk Factors
- Regulatory risk: Section 232 tariffs on steel and aluminum increased to 50% in June 2025, expanding scope and raising raw material costs for projects
- Geopolitical/macroeconomic threat: U.S. government shutdown Oct 1–Nov 12, 2025 caused delays in federally sponsored projects, affecting timing but not material results
- Operational vulnerability: Supply chain disruptions and equipment lead-time volatility driven by inflation, tariffs, and labor disruptions impacting fixed-price contracts
- Competitive risk: Shift to smaller, higher-margin owner-direct projects to reduce exposure to large, complex GCR projects with historically higher risk
- Financial risk: $10 million outstanding on $100 million revolving credit facility with interest rates linked to Term SOFR plus margin, maturing July 2030
Management Discussion & Analysis
- Revenue $646.8M, up 24.7% YoY; ODR $485.7M up 40.6%, GCR $161.1M down 7.0%
- Operating income margin 7.6% vs 7.4%; Gross profit margin 26.2% vs 27.8% with ODR margin down to 26.7% from 31.2%
- Best segment ODR gross profit $129.9M (+20.5%), worst GCR revenue decline of $12.2M (-7.0%)
- SG&A $109.5M (16.9% revenue) up 12.7%; stock-based compensation $7.0M; no explicit buyback or dividend data disclosed
- Management cites acquisitions driving growth; highlights integration focus on acquired lower margin entities; risks include contract cost overruns and backlog fluctuations
AI summary of the LMB 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Profitability and margin percentages not provided
- Segment or product-line performance not provided
- Cash position, operating cash flow, and capital deployment not provided
- Near-term outlook, guidance, and headwinds not provided
Risk Factors
- No risk-factors section provided in submitted filing excerpt
- No newly added or updated risks identifiable from the provided text
- No regulatory, legal, operational, competitive, market, or financial risks disclosed in the excerpt
AI summary of the LMB 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 1.01: Entry into a Material Definitive Agreement
- Approximately $7.0 million of existing Wintrust letters of credit remain outstanding after credit-agreement termination
- Existing letters of credit expire by April 2027 at the latest
Item 7.01: Regulation FD Disclosure
- Acquisition of Madison-based mechanical contractor 1901 Inc. closed September 1, 2026
- Initial purchase price $63.0 million funded through cash and expanded revolving credit borrowings
Item EX-99.1: Item EX-99.1
- Acquisition of 1901 Inc. expands Limbach’s Midwest footprint and creates its largest electrical operation
- $63 million purchase price funded with cash and revolver borrowings, plus earn-outs up to $6 million
Item 2.02: Results of Operations and Financial Condition
- Q2 2026 results for quarter ended June 30, 2026
- Press release dated August 4, 2026 contains financial results in Exhibit 99.1
Item 7.01: Regulation FD Disclosure
- CYMCOR acquisition closed for $30.0 million initial consideration
- Funding mix combines available cash and revolving credit facility, increasing balance-sheet leverage
Item EX-99.1: Item EX-99.1
- Q2 revenue rose 21.9% to $173.5M, but acquisition-related growth masked slight organic growth
- Gross margin fell to 21.5% from 28.0%, while Adjusted EBITDA declined 22.3% to $13.9M
AI summaries of LMB 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for LMB
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Horowitz Joshua | Buy | Sep 15, 2026 | 662 | $51.25 |
| Horowitz Joshua | Buy | Sep 15, 2026 | 3,346 | $50.61 |
| Krzeminski Laurel J | Buy | Sep 15, 2026 | 500 | $50.58 |
| Sharp Jay | Sell | Sep 15, 2026 | 5,094 | $50.21 |
| Horowitz Joshua | Buy | Sep 15, 2026 | 212 | $50.66 |
| Gaboury David Richard | Buy | Sep 14, 2026 | 1,940 | $51.35 |
| Horowitz Joshua | Buy | Sep 11, 2026 | 2,600 | $49.01 |
| Horowitz Joshua | Buy | Sep 11, 2026 | 1,000 | $49.59 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $518.8M | $646.8M |
| Gross Profit | - | $144.3M | $169.3M |
| Operating Income | - | $38.6M | $49.5M |
| Net Income | - | $30.9M | $39.1M |
| Gross Margin | - | 27.8% | 26.2% |
| Op. Margin | - | 7.4% | 7.6% |
| Net Margin | - | 6.0% | 6.0% |
| Balance Sheet | |||
| Total Assets | $304.4M | $352.1M | $381.1M |
| Equity | $120.9M | $153.5M | $195.7M |
| ROE | - | 20.1% | 20.0% |
| Per Share | |||
| EPS | - | $2.57 | $3.23 |
| Cash Flow | |||
| Operating CF | - | $36.8M | $45.7M |
| CapEx | - | $7.5M | $3.8M |
Source: XBRL data in Limbach Holdings, Inc. (LMB)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate LMB share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 27 | $292.3M |
| Q1 2026 | 27 | $269.1M |
| Q4 2025 | 24 | $290.5M |
| Q3 2025 | 24 | $386.9M |
| Q2 2025 | 27 | $486.9M |
| Q1 2025 | 22 | $168.6M |
| Q4 2024 | 18 | $175.3M |
| Q3 2024 | 15 | $109.8M |
- Citadel Advisors LLC+141.5K (+183%)
- BlackRock+132.5K (+16%)
- Millennium Management+49.8K (+239%)
- Goldman Sachs Group+38.2K (+39%)
- FMR LLC (Fidelity)+33.6K (+5%)
- Renaissance Technologies LLC−52.4K (-40%)
- Bank of America Corp−27.6K (-71%)
- Morgan Stanley−22.9K (-15%)
- Two Sigma Investments−8.7K (-65%)
- Northern Trust−7.3K (-5%)
Source: 13F-HR filings on SEC EDGAR (aggregated from 184 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
LMB filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Sep 17, 2026 | - | - | - |
| 4 | Sep 16, 2026 | - | - | - |
| 4 | Sep 16, 2026 | - | - | - |
| 4 | Sep 15, 2026 | - | - | - |
| 8-K | Sep 9, 2026 | - | Analysis | - |
| 8-K | Sep 1, 2026 | - | Analysis | - |
| 10-Q | Aug 4, 2026 | Jun 30, 2026 | Analysis | |
| 8-K | Aug 4, 2026 | - | Analysis | - |
| 8-K | Jul 24, 2026 | - | Analysis | - |
| 4 | Jun 17, 2026 | - | - | - |
| 8-K | Jun 11, 2026 | - | Analysis | - |
| 4 | May 20, 2026 | - | - | |
| 8-K | May 18, 2026 | - | Analysis | |
| 8-K | May 5, 2026 | - | Analysis | - |
| 10-Q | May 5, 2026 | Mar 31, 2026 | Analysis | |
| 4 | May 1, 2026 | - | - | - |
| 4 | Apr 28, 2026 | - | - | - |
| 4 | Apr 15, 2026 | - | - | - |
| 4 | Apr 10, 2026 | - | - | - |
| 4 | Mar 18, 2026 | - | - | - |
| 4 | Mar 18, 2026 | - | - | - |
| 4 | Mar 4, 2026 | - | - | - |
| 4 | Mar 4, 2026 | - | - | - |
| 4 | Mar 4, 2026 | - | - | - |
| 4 | Mar 4, 2026 | - | - | - |
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LMB SEC filings: frequently asked questions
Are LMB insiders buying or selling?
In the last 90 days, Limbach Holdings, Inc. (LMB) officers, directors and 10% owners reported 7 open-market purchases worth $515,920 by 3 insiders and 1 open-market sale worth $255,770 by 1 insider on Form 4, a net purchase of $260,150. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold LMB stock?
As of June 30, 2026, the largest Limbach Holdings, Inc. (LMB) holders among the 13F filers tracked by SignalX were BlackRock ($75.4 million), FMR LLC (Fidelity) ($56.6 million), Vanguard Capital Management LLC ($37.1 million), Dimensional Fund Advisors ($20.4 million), State Street Corp ($19.5 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was LMB's revenue in fiscal year 2025?
For the fiscal year ended December 31, 2025 (FY2025), Limbach Holdings, Inc. (LMB) reported revenue of $646.8 million (up 24.7% from FY2024) and net income of $39.1 million. Diluted EPS was $3.23. The figures come from the XBRL data in the 10-K.
What are the main risks in LMB's latest 10-K?
In the 10-K filed March 2, 2026, Limbach Holdings, Inc. (LMB) flagged: Regulatory risk: Section 232 tariffs on steel and aluminum increased to 50% in June 2025, expanding scope and raising raw material costs for projects. Geopolitical/macroeconomic threat: U.S. government shutdown Oct 1–Nov 12, 2025 caused delays in federally sponsored projects, affecting timing but not material results. (AI summary of the Risk Factors section.)
What did LMB report in its latest 8-K?
Limbach Holdings, Inc. (LMB) filed an 8-K on September 9, 2026 reporting Item 1.01 (Entry into a Material Definitive Agreement). Approximately $7.0 million of existing Wintrust letters of credit remain outstanding after credit-agreement termination.
What are the latest LMB SEC filings?
Limbach Holdings, Inc. (LMB) filed its latest 10-K annual report on March 2, 2026, a 10-Q quarterly report on August 4, 2026, an 8-K current report on September 9, 2026 and a Form 4 insider filing on September 17, 2026.
What is LMB's SEC CIK number?
Limbach Holdings, Inc. (LMB)'s SEC Central Index Key (CIK) is 1606163. EDGAR lists every LMB filing under that number.
Ask anything about LMB
The research agent reads LMB's filings, financials, insider trades and 13F holders, then answers with sources.