What is the 13F Pro Quality Score for LGL?

13F Pro ranks LGL GROUP INC (LGL) 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 LGL's current score at https://13fpro.ai/research/LGL (free sign-up required for the full ranking).

Which hedge funds own the most LGL stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of LGL include GAMCO INVESTORS, ET AL, BARD ASSOCIATES, RENAISSANCE TECHNOLOGIES. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/LGL as soon as new 13F filings post.

Where does 13F Pro source LGL data?

All LGL GROUP INC fundamentals and ownership data come directly from SEC EDGAR. LGL GROUP INC files with the SEC under CIK 61004. 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 LGL in?

LGL GROUP INC (LGL) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

How often is LGL research updated on 13F Pro?

LGL'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.

LGL GROUP INC(LGL)Stock Analysis

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13F Pro Quality Score

Not in ranked universe

Below size threshold

Quality rankings require at least $50M annual revenue or $250M total assets to filter out micro-caps and shell companies. This company reported $35.7M in revenue.

Financial data, filings, and institutional holdings below are still tracked in full — only the proprietary quality composite is unavailable for this name.

LGL Stock Analysis & AI Quality Score

AI stock analysis and institutional research for LGL GROUP INC (LGL), a Technology sector company. LGL is not currently included in 13F Pro's AI-ranked quality universe — quality rankings require at least $50m annual revenue or $250m total assets to filter out micro-caps and shell companies. this company reported $35.7m in revenue. Based on the latest XBRL financial filings (Q1 2026), LGL GROUP INC reports quarterly revenue of $1.1M, net income of $-622.0K, an operating margin of -72.4%. Top institutional holders of LGL by reported 13-F value include GAMCO INVESTORS, ET AL, BARD ASSOCIATES, RENAISSANCE TECHNOLOGIES, based on the most recent SEC filings. LGL trades on the NYSE exchange and files with the SEC under CIK 61004. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate LGL 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 LGL GROUP INC directly from SEC EDGAR. LGL GROUP INC's 13F Pro composite quality score has ranged between 31 and 64 since 2021, currently 53.4 — a declining long-term trajectory across 8 quarterly and live scoring snapshots.

Revenue

Q1 2026

$1.1M

Net Income

Q1 2026

$-622.0K

Free Cash Flow

Q1 2026

$501.0K

Operating Margin

Q1 2026

-72.4%

ROIC

Q1 2026

-1.8%

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

-2.9% YoY

$4.2MFY 2025

FY21 $1.4MFY23 $3.7MFY24 $4.3MFY25 $4.2M

Net Income

+59.3% YoY

$688.0KFY 2025

FY21 $14.6MFY23 $269.0KFY24 $432.0KFY25 $688.0K

Operating Income

-64.4% YoY

$249.0KFY 2025

FY21 $-3.5MFY23 $646.0KFY24 $699.0KFY25 $249.0K

EPS (Diluted)

+37.5% YoY

$0.11FY 2025

FY21 $2.74FY23 $0.05FY24 $0.08FY25 $0.11

Total Assets

+8.4% YoY

$46.8MFY 2025

FY21 $59.9MFY23 $41.9MFY24 $43.1MFY25 $46.8M

Total Debt

—FY 2025

FY21 $613.0KFY23 —FY24 —FY25 —

Op. Cash Flow

-92.0% YoY

$70.0KFY 2025

FY21 $1.4MFY23 $385.0KFY24 $874.0KFY25 $70.0K

Metric	FY 2025	FY 2024	FY 2023	FY 2021	FY 2020	FY 2019
Revenue	$4.2M -2.9%	$4.3M +16.7%	$3.7M +154.4%	$1.4M -95.4%	$31.2M -2.3%	$31.9M
Net Income	$688.0K +59.3%	$432.0K +60.6%	$269.0K -98.2%	$14.6M +1412.2%	$968.0K -86.2%	$7.0M
Operating Income	$249.0K -64.4%	$699.0K +8.2%	$646.0K +118.3%	$-3.5M -348.8%	$1.4M -58.9%	$3.4M
EPS (Diluted)	$0.11 +37.5%	$0.08 +60.0%	$0.05 -98.2%	$2.74 +1342.1%	$0.19 -86.5%	$1.41
Total Assets	$46.8M +8.4%	$43.1M +3.1%	$41.9M -30.1%	$59.9M +37.9%	$43.5M +10.8%	$39.2M
Total Debt	—	—	—	$613.0K +109.2%	$293.0K +22.1%	$240.0K
Operating Cash Flow	$70.0K -92.0%	$874.0K +127.0%	$385.0K -71.5%	$1.4M -57.6%	$3.2M +19.7%	$2.7M

AI Insight: LGL Financial Trends

LGL remains essentially flat on $1M quarterly revenue with deteriorating profitability and rising equity base to $45M.

• Revenue stuck at $1M across all eight quarters Q2 2024–Q1 2026; no growth trajectory visible.

• Net income swung to -$1M loss in Q1 2026, first meaningful quarterly loss in the period.

• Equity increased from $39M (Q2 2024) to $45M (Q1 2026), suggesting capital infusions despite flat revenue.

⚠ Operating income turned negative (-$1M) in Q1 2026; deteriorating unit economics despite stable topline.

⚠ Operating cash flow positive $1M in Q1 2026 but highly volatile; sustainability unclear.

AI Insight: LGL Ratio Trends

LGL collapsed into severe operating losses in Q1 2026, with operating margin plummeting to -72.4%, reversing modest profitability from prior quarters.

• Operating margin deteriorated sharply from 9.8% in Q4 2025 to -72.4% in Q1 2026, destroying value across all return metrics.

• Net profit margin fell to -57.3% in Q1 2026 versus -2.2% in Q4 2025, signaling severe operational distress and negative earnings.

• ROIC dropped to -7.0% in Q1 2026 from 1.1% in Q4 2025, marking the worst quarterly return on invested capital in the dataset.

⚠ TTM metrics now deeply negative (OpMargin -13.3%, NPM 1.7%, ROIC -1.3%), indicating sustained losses over trailing twelve months.

⚠ Extreme volatility in Q3 2025 NPM of 69.7% followed by sharp reversals suggests accounting irregularities or one-time events masking underlying weakness.

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Available Research

13F Pro tracks comprehensive data for LGL GROUP 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 LGL

GAMCO INVESTORS, INC. ET AL
$4.7M670,781 sh
BARD ASSOCIATES INC
$3.4M489,857 sh
RENAISSANCE TECHNOLOGIES LLC
$1.2M166,594 sh
VANGUARD CAPITAL MANAGEMENT LLC
$799.2K114,994 sh
DIMENSIONAL FUND ADVISORS LP
$689.7K99,240 sh
CALDWELL SUTTER CAPITAL, INC.
$561.9K80,851 sh
GEODE CAPITAL MANAGEMENT, LLC
$266.1K38,273 sh
VANGUARD FIDUCIARY TRUST CO
$143.7K20,683 sh
CITADEL ADVISORS LLC
$140.8K20,257 sh
OSAIC HOLDINGS, INC.
$107.6K15,476 sh

Fund	Value	Shares
GAMCO INVESTORS, INC. ET AL	$4.7M	670,781
BARD ASSOCIATES INC	$3.4M	489,857
RENAISSANCE TECHNOLOGIES LLC	$1.2M	166,594
VANGUARD CAPITAL MANAGEMENT LLC	$799.2K	114,994
DIMENSIONAL FUND ADVISORS LP	$689.7K	99,240
CALDWELL SUTTER CAPITAL, INC.	$561.9K	80,851
GEODE CAPITAL MANAGEMENT, LLC	$266.1K	38,273
VANGUARD FIDUCIARY TRUST CO	$143.7K	20,683
CITADEL ADVISORS LLC	$140.8K	20,257
OSAIC HOLDINGS, INC.	$107.6K	15,476

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Is LGL a good stock to buy?

13F Pro's AI-powered analysis of LGL GROUP INC (LGL) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for LGL are available on the LGL 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 LGL?

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 LGL. 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 LGL GROUP INC's investment landscape.