Littelfuse Inc /de
A maker of circuit protection and sensing components, Littelfuse produces the fuses, power semiconductors, and switches that keep data centers, vehicles, and power grids running safely. The company was born in 1927 when engineer Edward Sundt, frustrated by test meters burning out during electrical work, invented a small fast-acting fuse and sold his car to fund the business. He wanted to call it "Little Fuse," but was denied the trademark as too generic—so he cleverly misspelled it as "Littelfuse" instead.
Granted 3.1K
Granted 486.7K · Sold 223.5K
Granted 114.0K · Bought 17.8K · Sold 87.5K
Granted 387.7K · Sold 188.6K
Granted 40.6K
Granted 71.2K · Sold 46.9K
Granted 822.8K · Sold 474.5K
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Granted 258.6K · Sold 159.6K
Sold 40.0K
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Granted 97.9K · Bought 126 · Sold 37.1K
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Granted 98.3K
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Granted 636
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Karsh Bruce ADirector · 6 transactions | — | 260.2Kas of May 2007 | 3.1K | — | — |
| Zommer NathanDirector · 126 transactions | — | 204.2Kas of Apr 2022 | 486.7K | — | 223.5K |
| Grillo AnthonyDirector · 250 transactions | — | 64.9K | 114.0K | 17.8K | 87.5K |
| Heinzmann David WPresident & CEO, Director · 217 transactions | — | 61.0Kas of Aug 2024 | 387.7K | — | 188.6K |
| Driscoll John PDirector · 34 transactions | — | 29.2Kas of Mar 2012 | 40.6K | — | — |
| Schubel Ronald LDirector · 99 transactions | — | 28.4Kas of Mar 2019 | 71.2K | — | 46.9K |
| Hunter GordonDirector · 315 transactions | — | 28.1K | 822.8K | — | 474.5K |
| Sethna MeenalExecutive VP, CFO · 80 transactions | — | 28.1Kas of May 2025 | 75.6K | — | 45.9K |
| Franklin Philip GExec. Vice President & CFO · 151 transactions | — | 27.4Kas of Mar 2016 | 332.4K | — | 200.3K |
| Stafford Ryan KExecutive VP, CLO & Corp Sec · 156 transactions | — | 27.1K | 258.6K | — | 159.6K |
| Witt Howard BDirector · 7 transactions | — | 26.2Kas of May 2006 | — | — | 40.0K |
| Noglows William PDirector · 123 transactions | — | 24.7K | 43.5K | — | 31.0K |
| Major John EDirector · 163 transactions | — | 21.4Kas of Mar 2021 | 97.9K | 126 | 37.1K |
| Chung T JDirector · 129 transactions | — | 19.3K | 47.1K | — | 28.1K |
| Henderson Gregory N.President & CEO, Director · 13 transactions | — | 19.1K | 20.9K | — | — |
| Audino Kenneth RRetired Officer, Retired Officer · 12 transactions | — | 13.5Kas of Mar 2006 | 34.5K | — | — |
| Marak ChadSVP & GM Semiconductor Busines · 10 transactions | — | 12.4Kas of Jun 2025 | 8.8K | — | — |
| Kim Peter Sung-JipSVP & GM Industrial Business · 33 transactions | — | 10.5K | 26.8K | — | 17.7K |
| Ferbert H DalsenV.P. & G.M. Electrical Div. · 151 transactions | — | 10.4Kas of Apr 2015 | 193.1K | — | 4.8K |
| Khandelwal AbhishekExecutive VP, CFO · 10 transactions | — | 8.8K | 10.0K | — | — |
| Deepak NayarV.P. & G.M. Electronics Div. · 31 transactions | — | 7.5Kas of Apr 2014 | 17.8K | — | 9.6K |
| Rutz Michael PSVP & GM Semiconductor Product · 42 transactions | — | 6.1Kas of May 2020 | 35.5K | — | 26.8K |
| Cole MatthewSVP eMobility & Corp Strategy · 86 transactions | — | 6.0Kas of Feb 2025 | 23.4K | — | 13.2K |
| Chu MaggieSVP, CHRO · 39 transactions | — | 6.0K | 23.0K | — | 17.3K |
| Samyn David RV.P. & G.M. Electronics Div. · 4 transactions | — | 5.9Kas of May 2009 | 5.5K | — | — |
| Gorski Jeffrey GSVP & Chief Accounting Officer · 59 transactions | — | 5.6K | 22.7K | — | 13.7K |
| Daniel F StanekV.P. & G.M. Custom Products · 28 transactions | — | 5.6Kas of Apr 2015 | 12.8K | — | 6.6K |
| Dickinson Paul MVP, GM, Semiconductor Products · 62 transactions | — | 5.6Kas of May 2012 | 98.3K | — | — |
| Ruppel DavidSVP & GM Transportation Bus. · 15 transactions | — | 5.3K | 4.3K | — | 2.0K |
| Wang Chen MingV.P. & G.M. Electronics Div. · 2 transactions | — | 4.9Kas of Apr 2011 | 4.9K | — | — |
| Nayar DeepakSVP & GM Electronics Business · 153 transactions | — | 4.9K | 125.1K | — | 115.7K |
| Cerniglia Kristina A.Director · 16 transactions | — | 4.7K | 7.1K | — | 2.3K |
| Fu Cary TDirector · 24 transactions | — | 4.7Kas of Apr 2023 | 13.5K | — | 8.4K |
| Roeder DieterSVP & GM Automotive Div · 65 transactions | — | 4.4Kas of May 2017 | 104.0K | — | 68.7K |
| Green Maria CDirector · 12 transactions | — | 4.2K | 4.2K | — | — |
| Conrad AlexanderSVP &GM Passenger Vehicle · 43 transactions | — | 3.4K | 24.4K | — | 21.3K |
| Hamed Karim WagdySVP & GM Semiconductor Busines · 6 transactions | — | 3.0K | 3.0K | — | — |
| Muchoney Mary SCorporate Secretary · 95 transactions | — | 2.6Kas of Nov 2016 | 51.9K | — | 12.2K |
| Highley IanSVP & GM Semiconductor & CTO · 40 transactions | — | 1.8Kas of May 2019 | 45.7K | — | 41.2K |
| Delly Gayla JDirector · 7 transactions | — | 1.8K | 1.8K | — | — |
| D'Angelo Anne-Marie WSVP & CLO · 2 transactions | — | 1.7K | 1.7K | — | — |
| LaHayne Janet JVP, Chief Information Officer · 10 transactions | — | 1.2Kas of Apr 2007 | 5.9K | — | — |
| Quille John TVice President & CAO · 59 transactions | — | 1.1Kas of May 2017 | 18.8K | — | 6.7K |
| PAEPER HOLLY BethDirector · 4 transactions | — | 636 | 636 | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -1.93M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.