What is the 13F Pro Quality Score for LFUS?

13F Pro ranks LITTELFUSE INC /DE (LFUS) 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 LFUS's current score at https://13fpro.ai/company/LFUS (free sign-up required for the full ranking).

Where does 13F Pro source LFUS data?

All LITTELFUSE INC /DE fundamentals and ownership data come directly from SEC EDGAR. LITTELFUSE INC /DE files with the SEC under CIK 889331. 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 LFUS in?

LITTELFUSE INC /DE (LFUS) 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 LFUS research updated on 13F Pro?

LFUS'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.

LITTELFUSE INC /DE(LFUS)Stock Analysis

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SEC EDGAR: CIK 889331 LFUS stock profile & AI dashboard →

13F Pro Quality Score

51.6/100

Rank #1,518 of 2,961 stocks

View Technology peers →

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

Revenue Growth

39.6/100

Profitability

25.0/100

Balance Sheet

31.2/100

Earnings Quality

94.2/100

Free Cash Flow

66.1/100

Institutional Flow

66.1/100

Revenue Scale

66.5/100

Dilution Risk

53.4/100

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LFUS Stock Analysis & AI Quality Score

Data updated 2026-07-26

AI stock analysis and institutional research for LITTELFUSE INC /DE (LFUS), a Technology sector company. 13F Pro's AI-powered ranking engine scores LFUS at 51.6/100 on a 32-signal composite quality model, placing it at rank #1,518 of 2,961 stocks — the bottom half of the AI-ranked universe. LFUS scores in the top quartile across earnings quality (94.2). Areas of concern include profitability (25.0) and balance sheet strength (31.2), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), LITTELFUSE INC /DE reports quarterly revenue of $657.0M, net income of $75.1M, free cash flow of $66.2M. Top institutional holders of LFUS by reported 13-F value include BlackRock, VANGUARD PORTFOLIO MANAGEMENT, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. LFUS trades on the Nasdaq exchange and files with the SEC under CIK 889331. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate LFUS 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 LITTELFUSE INC /DE directly from SEC EDGAR.

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Fun facts about LITTELFUSE INC /DE

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

1
The Basics
U.S. electronic components company · listed on Nasdaq · serves industries from automotive to industrial automation.
2
The Numbers
Annual revenue in the neighborhood of $2 billion, with a global workforce of roughly 15,000 employees spread across dozens of countries.
3
The History
Founded in 1927 in Chicago, the company spent nearly a century quietly becoming one of the world's leading makers of circuit protection devices.
4
The Secret
Its bread and butter is the humble fuse — those tiny components that sacrifice themselves so your expensive electronics don't have to.
5
The Lore
It has grown largely through acquisitions, snapping up dozens of companies to expand beyond fuses into sensors, semiconductors, and varistors — a circuit-protection empire built one buyout at a time.
6
The Giveaway
The name is practically a spoiler: this Chicago-born fuse specialist has "fuse" baked right into its corporate identity, and its ticker on Nasdaq is four letters starting with L.

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Revenue

Q1 2026

$657.0M

Net Income

Q1 2026

$75.1M

Free Cash Flow

Q1 2026

$66.2M

ROIC

Q1 2026

12.5%

D/E Ratio

Q1 2026

0.29

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+8.9% YoY

$2.39BFY 2025

FY22 $2.51BFY23 $2.36BFY24 $2.19BFY25 $2.39B

Net Income

-171.6% YoY

$-71.7MFY 2025

FY22 $373.3MFY23 $259.5MFY24 $100.2MFY25 $-71.7M

Operating Income

-76.4% YoY

$37.5MFY 2025

FY22 $500.8MFY23 $360.9MFY24 $158.8MFY25 $37.5M

EPS (Diluted)

-172.3% YoY

$-2.89FY 2025

FY22 $14.94FY23 $10.34FY24 $4.00FY25 $-2.89

Total Assets

+1.7% YoY

$3.96BFY 2025

FY22 $3.90BFY23 $4.00BFY24 $3.89BFY25 $3.96B

Total Debt

-2.7% YoY

$898.9MFY 2025

FY22 $1.14BFY23 $886.0MFY24 $923.7MFY25 $898.9M

Op. Cash Flow

+18.0% YoY

$433.8MFY 2025

FY22 $419.7MFY23 $457.4MFY24 $367.6MFY25 $433.8M

Free Cash Flow

+25.5% YoY

$366.1MFY 2025

FY22 $315.4MFY23 $371.2MFY24 $291.7MFY25 $366.1M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$2.39B +8.9%	$2.19B -7.3%	$2.36B -6.0%	$2.51B +20.9%	$2.08B +43.9%	$1.45B
Net Income	$-71.7M -171.6%	$100.2M -61.4%	$259.5M -30.5%	$373.3M +31.5%	$283.8M +118.3%	$130.0M
Operating Income	$37.5M -76.4%	$158.8M -56.0%	$360.9M -27.9%	$500.8M +29.9%	$385.6M +137.5%	$162.4M
EPS (Diluted)	$-2.89 -172.3%	$4.00 -61.3%	$10.34 -30.8%	$14.94 +31.3%	$11.38 +115.1%	$5.29
Total Assets	$3.96B +1.7%	$3.89B -2.6%	$4.00B +2.3%	$3.90B +23.9%	$3.15B +14.7%	$2.75B
Total Debt	$898.9M -2.7%	$923.7M +4.3%	$886.0M -22.0%	$1.14B +71.7%	$661.9M -3.7%	$687.0M
Operating Cash Flow	$433.8M +18.0%	$367.6M -19.6%	$457.4M +9.0%	$419.7M +12.4%	$373.3M +44.7%	$258.0M
Free Cash Flow	$366.1M +25.5%	$291.7M -21.4%	$371.2M +17.7%	$315.4M +11.5%	$282.8M +40.1%	$201.8M

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Available Research

13F Pro tracks comprehensive data for LITTELFUSE INC /DE 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 LFUS

BlackRock, Inc.
$1.1B2,523,051 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$684.9M1,504,081 sh
VANGUARD CAPITAL MANAGEMENT LLC
$519.6M1,141,062 sh
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.
$425.1M933,511 sh
STATE STREET CORP
$361.6M794,167 sh
MAIRS & POWER INC
$274.2M602,104 sh
GEODE CAPITAL MANAGEMENT, LLC
$265.6M583,297 sh
MORGAN STANLEY
$214.6M471,250 sh
Neuberger Berman Group LLC
$213.0M467,862 sh
DIMENSIONAL FUND ADVISORS LP
$202.7M445,099 sh

Fund	Value	Shares
BlackRock, Inc.	$1.1B	2,523,051
VANGUARD PORTFOLIO MANAGEMENT LLC	$684.9M	1,504,081
VANGUARD CAPITAL MANAGEMENT LLC	$519.6M	1,141,062
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.	$425.1M	933,511
STATE STREET CORP	$361.6M	794,167
MAIRS & POWER INC	$274.2M	602,104
GEODE CAPITAL MANAGEMENT, LLC	$265.6M	583,297
MORGAN STANLEY	$214.6M	471,250
Neuberger Berman Group LLC	$213.0M	467,862
DIMENSIONAL FUND ADVISORS LP	$202.7M	445,099

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Is LFUS a good stock to buy?

13F Pro's AI-powered analysis of LITTELFUSE INC /DE (LFUS) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for LFUS are available on the LFUS 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. LFUS is classified as a large company.

Which hedge funds own LFUS?

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 LFUS. 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 LITTELFUSE INC /DE's investment landscape.