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LFUS · Littelfuse Inc /De
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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
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LFUS

LITTELFUSE INC /DE
SEMICONDUCTORS & ELECTRONICS · SWITCHGEAR & SWITCHBOARD APPARATUS · CIK 0000889331
FORM 144 · 2☆ WATCH
INSIDER NET · 180D
-$16.2M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
302
13F, latest reported quarter
REVENUE GROWTH
+8.9%
XBRL, annual
NET MARGIN
-3.0%
CONVERSIONS · 180D
11
codes C/M, not in net · $6.5M priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$16.2M over 180 days
-$2.7M over 90 days
below 69% of Semiconductors & Electronics
CONGRESS
no member of Congress has reported trading it
FUNDS
302 funds added or opened last quarter
more than 74% of Semiconductors & Electronics
REVENUE
+8.9% year over year
below 51% of Semiconductors & Electronics
MARGIN
-3.0% net margin
below 51% of Semiconductors & Electronics
BUYBACKS
$27.6M repurchased, FY to 2025-12-27
below 53% of Semiconductors & Electronics
SHORT
6.1% of shares outstanding short · 3.3 days to cover · settled 2026-07-31
more than 63% of Semiconductors & Electronics
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$16.2M across 7 people in 180 days.
302 funds added or opened positions in the latest 13F quarter, of 612 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +65.2%
+65.2%12M
-8%+26%+59%+93%2025-092025-102025-122026-032026-052026-072026-09 2026-02-02 · Stafford Ryan K sold $5.2M2026-06-02 · Kim Peter Sung-Jip sold $4.9M2026-05-20 · Chu Maggie sold $3.9M2026-02-10 · GRILLO ANTHONY sold $1.6M2026-02-02 · Nayar Deepak sold $1.2M2025-12-05 · Nayar Deepak sold $1.2M2026-06-11 · GRILLO ANTHONY sold $1.1M2026-05-20 · Chu Maggie sold $1.1M2026-05-18 · Nayar Deepak sold $1.0M2026-05-18 · Nayar Deepak sold $1.0M2026-02-24 · Cerniglia Kristina A. sold $863.1K2026-02-06 · Gorski Jeffrey G sold $846.5K2025-12-04 · Nayar Deepak sold $786.7K2026-02-02 · Nayar Deepak sold $775.6K2026-06-15 · HUNTER GORDON sold $687.4K2026-02-02 · Kim Peter Sung-Jip sold $683.4K2026-02-04 · Chu Maggie sold $673.3K2025-11-26 · Nayar Deepak sold $596.1K2026-02-02 · Kim Peter Sung-Jip sold $583.3K2025-12-11 · Stafford Ryan K sold $580.1K2026-05-18 · Nayar Deepak sold $576.8K2026-06-18 · Gorski Jeffrey G sold $550.8K2025-12-11 · Kim Peter Sung-Jip sold $547.9K2026-02-02 · Nayar Deepak sold $516.8K2026-02-02 · Kim Peter Sung-Jip sold $497.3K2026-02-05 · Gorski Jeffrey G sold $385.1K2026-02-02 · Ruppel David sold $357.0K2026-02-05 · Gorski Jeffrey G sold $341.0K2026-06-03 · HUNTER GORDON sold $294.5K2026-02-05 · Gorski Jeffrey G sold $247.9K2026-05-18 · Ruppel David sold $225.3K2026-02-20 · HUNTER GORDON sold $217.3K2026-02-02 · Nayar Deepak sold $207.7K2026-02-02 · Stafford Ryan K sold $203.4K2026-04-28 · Chu Maggie sold $195.5K2026-02-05 · Gorski Jeffrey G sold $182.1K2026-02-10 · GRILLO ANTHONY sold $135.5K2026-04-28 · Chu Maggie sold $124.4K2026-02-02 · Ruppel David sold $123.1K2026-06-18 · Gorski Jeffrey G sold $119.4K2026-06-11 · GRILLO ANTHONY sold $115.4K2026-04-30 · Chu Maggie sold $111.9K2026-07-17 · Gayla Delly filed to sell $472.3K2026-06-18 · Jeffrey Gorski filed to sell $670.2K
INSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $16.2M sold by insiders over 180 days, 302 funds added last quarter, $1.1M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
NVDACRDOVICRMPWRVPLMALABPIMTSIMUAIPAVGOMSI
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, LITTELFUSE INC /DE insiders sold a net $16.2M of stock across 242 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
Gorski Jeffrey G
SVP & Chief Accounting Officer
SELL
2026-06-18
247.0
$119.4K
Gorski Jeffrey G
SVP & Chief Accounting Officer
SELL
2026-06-18
1,142.0
$550.8K
HUNTER GORDON
Director
SELL
2026-06-15
1,432.0
$687.4K
GRILLO ANTHONY
Director
SELL
2026-06-11
256.0
$115.4K
GRILLO ANTHONY
Director
SELL
2026-06-11
35.0
$15.7K
242 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 237 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
2,523,051.0 sh
$1.1B
VANGUARD PORTFOLIO MANAGEMENT LLC
1,504,081.0 sh
$684.9M
VANGUARD CAPITAL MANAGEMENT LLC
1,141,062.0 sh
$519.6M
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.
933,511.0 sh
$425.1M
STATE STREET CORP
794,167.0 sh
$361.6M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
Gayla Delly
FILED 2026-07-17
$472.3K
Jeffrey Gorski
FILED 2026-06-18
$670.2K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Bahl & Gaynor Small Cap Dividend ETF
$6.1M POSITION · AS OF 2026-03-31
4.5%
Lord Abbett Focused Small Cap Value Fund
$3.7M POSITION · AS OF 2026-04-30
3.9%
Royce Premier Fund
$35.1M POSITION · AS OF 2026-03-31
3.5%
Janus Henderson Small-Mid Cap Value Fund
$2.5M POSITION · AS OF 2026-03-31
3.5%
MarketDesk Focused U.S. Momentum ETF
$3.9M POSITION · AS OF 2026-04-30
3.4%
GRANDEUR PEAK US STALWARTS FUND
$550.1K POSITION · AS OF 2026-04-30
3.1%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Executive pay vs shareholder return · David W. Heinzmann
DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself
FY
CEO TOTAL
ACTUALLY PAID
OTHER NEOs AVG
TSR
PEER TSR
2023
$6.6M
$8.7M
$2.0M
+45%
+60%
2022
$6.9M
$1.2M
$2.3M
+18%
+25%
2021
$6.2M
$10.6M
$2.2M
+67%
+51%
2020
$4.1M
$9.6M
$1.7M
+34%
+21%
TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$2.4B$2.2B$2.4B$2.5B
GROSS PROFIT$906.0M$787.5M$900.2M$1.0B
OPERATING INCOME$37.5M$158.8M$360.9M$500.8M
NET INCOME$-71.7M$100.2M$259.5M$373.3M
EPS (DILUTED)-2.894.0010.3414.94
OPERATING CASH FLOW$433.8M$367.6M$457.4M$419.7M
CASH$563.4M$724.9M$555.5M$562.6M
LONG-TERM DEBT$706.4M$788.5M$857.9M$866.6M
BUYBACKS$27.6M$40.9M$0$0
DIVIDENDS PAID$72.0M$67.1M$62.2M$55.9M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-06 ALL SYSTEMS LIVE FOR MACHINES →