FilingIndex
AGSS10-KAMSS10-QPETVW10-KFMCQF11-KCTGO8-KBLTHS-1/AAURADEF 14AQLEP-UN8-KTOVXDEF 14AMLM8-KCURB424B5GL-PD8-KEXYNWS-1DLR-PJ8-KDFNSW8-KOTH8-K/APSKY8-KMODD10-KCTVA8-KSEQCS-1PPIH8-KOPRTDEFA14AAAVXF6-KMNRO11-KOPRTDEF 14AAIB8-KSWMR8-KRMCFDEF 14AALH8-KCVKD8-KAGSS10-KAMSS10-QPETVW10-KFMCQF11-KCTGO8-KBLTHS-1/AAURADEF 14AQLEP-UN8-KTOVXDEF 14AMLM8-KCURB424B5GL-PD8-KEXYNWS-1DLR-PJ8-KDFNSW8-KOTH8-K/APSKY8-KMODD10-KCTVA8-KSEQCS-1PPIH8-KOPRTDEFA14AAAVXF6-KMNRO11-KOPRTDEF 14AAIB8-KSWMR8-KRMCFDEF 14AALH8-KCVKD8-K
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LFUSNasdaq

LITTELFUSE INC /DE

Switchgear & Switchboard Apparatus · DE · CIK 889331

Littelfuse designs, manufactures, and markets electronic components, modules, and solutions for safety and energy efficiency

red 8-K · 90d
+ WatchView on EDGAR ↗
$11.94B
Market cap
$449.02
Last close
-0.7%
1D
-8.2%
5D
273K
Volume
Price · last 39 sessions+5.8%
May 4L $422.80 · H $489.10Jun 29
130
Total filings
May 14, 2026
Last filing
12/26
Fiscal year end
All8-K · 7310-Q · 25DEFA14A · 910-K · 9DEF 14A · 9SC 13G · 38-K/A · 2
8-KReg FD DisclosureMay 14, 202610-Q10-QMay 6, 20268-KResults of Operations · Reg FD DisclosureMay 6, 20268-KExecutive Change · Shareholder VoteApr 28, 20268-KMaterial Agreement · New Debt / ObligationMar 13, 2026DEFA14ADEFA14AMar 12, 2026DEF 14ADEF 14AMar 12, 20268-KExecutive Change · Reg FD DisclosureMar 5, 202610-K10-KFeb 19, 20268-KResults of Operations · Reg FD DisclosureJan 28, 20268-KExecutive ChangeJan 8, 202610-Q10-QOct 29, 20258-KResults of Operations · Reg FD DisclosureOct 29, 20258-KMaterial Agreement · Reg FD DisclosureOct 28, 20258-KExecutive Change · Reg FD DisclosureAug 7, 202510-Q10-QJul 30, 20258-KResults of Operations · Reg FD DisclosureJul 30, 20258-KExecutive Change · Reg FD DisclosureMay 27, 202510-Q10-QApr 30, 20258-KResults of Operations · Reg FD DisclosureApr 29, 20258-KExecutive Change · Shareholder VoteApr 28, 20258-KExecutive Change · Reg FD DisclosureApr 9, 2025DEFA14ADEFA14AMar 14, 2025DEF 14ADEF 14AMar 14, 202510-K10-KMar 13, 20258-KResults of Operations · Reg FD DisclosureJan 28, 20258-KExecutive ChangeJan 13, 202510-Q10-QOct 30, 20248-KResults of Operations · Reg FD DisclosureOct 29, 202410-Q10-QJul 31, 20248-KResults of Operations · Reg FD DisclosureJul 30, 202410-Q10-QMay 1, 20248-KResults of Operations · Reg FD DisclosureApr 30, 20248-KExecutive Change · Shareholder VoteApr 26, 2024DEFA14ADEFA14AMar 14, 2024DEF 14ADEFINITIVE PROXY STATEMENTSMar 14, 202410-K10-KFeb 16, 2024SC 13GSC 13GFeb 14, 20248-KExecutive ChangeFeb 1, 20248-KResults of Operations · Reg FD DisclosureJan 30, 20248-KExecutive ChangeJan 5, 202410-Q10-QNov 1, 20238-KResults of Operations · Reg FD DisclosureOct 31, 20238-KExecutive Change · Company UpdateSep 28, 20238-KAuditor ChangeAug 16, 202310-Q10-QAug 2, 20238-KResults of Operations · Reg FD DisclosureAug 1, 20238-KExecutive Change · Company UpdateMay 15, 202310-Q10-QMay 3, 20238-KResults of Operations · Reg FD DisclosureMay 2, 20238-KExecutive Change · Shareholder VoteApr 28, 2023DEFA14ADEFA14AMar 16, 2023DEF 14ADEF 14AMar 16, 202310-K10-KFeb 16, 2023SC 13GSC 13GFeb 14, 20238-KBylaw AmendmentFeb 2, 20238-KResults of Operations · Reg FD DisclosureFeb 1, 202310-Q10-QNov 2, 20228-KResults of Operations · Reg FD DisclosureNov 1, 202210-Q10-QAug 3, 20228-KResults of Operations · Reg FD DisclosureAug 2, 20228-KNew Debt / Obligation · Reg FD DisclosureJul 19, 20228-KMaterial Agreement · New Debt / ObligationJun 30, 20228-KMaterial Agreement · New Debt / ObligationMay 19, 202210-Q10-QMay 4, 20228-KResults of Operations · Reg FD DisclosureMay 3, 20228-KShareholder VoteApr 29, 20228-KMaterial Agreement · Reg FD DisclosureApr 8, 2022DEFA14ADEFA14AMar 16, 2022DEF 14ADEF 14AMar 16, 202210-K10-KFeb 17, 20228-KResults of Operations · Reg FD DisclosureFeb 1, 20228-KAcquisition / Disposition · Reg FD DisclosureNov 30, 202110-Q10-QOct 27, 20218-KResults of Operations · Reg FD DisclosureOct 26, 20218-KMaterial Agreement · Reg FD DisclosureOct 20, 202110-Q10-QJul 28, 20218-KResults of Operations · Reg FD DisclosureJul 28, 202110-Q10-QApr 28, 20218-KResults of Operations · Reg FD DisclosureApr 28, 2021

Insider Activity

In the 90 days to Feb 24, 2026: 9 sold $19.9M.

DateInsiderActionSharesPriceValue
Feb 24, 2026Cerniglia Kristina A.DirectorSell2,343$368.38$863K
Feb 20, 2026Hunter GordonDirectorSell591$367.65$217K
Feb 20, 2026Hunter GordonDirectorSell200$368.42$74K
Feb 20, 2026Hunter GordonDirectorSell120$366.61$44K
Feb 10, 2026Grillo AnthonyDirectorSell4,570$346.13$1.6M
Feb 10, 2026Grillo AnthonyDirectorSell390$347.35$135K
Feb 10, 2026Grillo AnthonyDirectorSell40$348.47$14K
Feb 6, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell2,440$346.94$847K
Feb 6, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell60$344.97$21K
Feb 5, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell1,170$329.18$385K
Feb 5, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell1,033$330.14$341K
Feb 5, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell749$330.98$248K
Feb 5, 2026Gorski Jeffrey GSVP & Chief Accounting OfficerSell548$332.21$182K
Feb 4, 2026Chu MaggieSVP, CHROSell2,061$326.71$673K
Feb 2, 2026Stafford Ryan KExecutive VP, CLO & Corp SecSell16,107$325.19$5.2M
Feb 2, 2026Nayar DeepakSVP & GM Electronics BusinessSell3,779$320.40$1.2M
Feb 2, 2026Nayar DeepakSVP & GM Electronics BusinessSell2,406$322.37$776K
Feb 2, 2026Kim Peter Sung-JipSVP & GM Industrial BusinessSell2,100$325.44$683K
Feb 2, 2026Kim Peter Sung-JipSVP & GM Industrial BusinessSell1,787$326.44$583K
Feb 2, 2026Nayar DeepakSVP & GM Electronics BusinessSell1,608$321.39$517K

Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.

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