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 6.0K · Bought 17.5K · Sold 8.0K
Granted 34.0K · Sold 23.1K
Granted 23.5K · Sold 17.1K
Granted 5.2K · Sold 2.9K
Granted 37.8K · Sold 33.4K
Granted 4.7K
Granted 4.5K · Sold 2.3K
Granted 20.4K
Granted 8.8K
Granted 26.8K · Sold 17.7K
Granted 10.0K
Granted 7.8K · Sold 7.2K
Granted 20.3K · Sold 17.3K
Granted 13.4K · Sold 9.2K
Granted 4.3K · Sold 2.0K
Granted 33.7K · Sold 30.1K
Granted 4.4K · Sold 2.3K
Granted 2.0K
Granted 13.2K · Sold 13.2K
Granted 3.0K
Granted 1.8K
Granted 1.7K
Granted 636
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Grillo AnthonyDirector · 44 transactions | +25% | 64.9K | 6.0K | 17.5K | 8.0K |
| Heinzmann David WPresident & CEO, Director · 22 transactions | +16.9% | 61.0Kas of Aug 2024 | 34.0K | — | 23.1K |
| Sethna MeenalExecutive VP, CFO · 20 transactions | +43.2% | 28.1Kas of May 2025 | 23.5K | — | 17.1K |
| Hunter GordonDirector · 28 transactions | +15.5% | 28.1K | 5.2K | — | 2.9K |
| Stafford Ryan KExecutive VP, CLO & Corp Sec · 29 transactions | +4% | 27.1K | 37.8K | — | 33.4K |
| Noglows William PDirector · 23 transactions | +24% | 24.7K | 4.7K | — | — |
| Chung T JDirector · 24 transactions | +13.5% | 19.3K | 4.5K | — | 2.3K |
| Henderson Gregory N.President & CEO, Director · 12 transactions | +4353.6% | 19.1K | 20.4K | — | — |
| 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 |
| Khandelwal AbhishekExecutive VP, CFO · 10 transactions | — | 8.8K | 10.0K | — | — |
| Cole MatthewSVP eMobility & Corp Strategy · 23 transactions | +8.9% | 6.0Kas of Feb 2025 | 7.8K | — | 7.2K |
| Chu MaggieSVP, CHRO · 34 transactions | +30.4% | 6.0K | 20.3K | — | 17.3K |
| Gorski Jeffrey GSVP & Chief Accounting Officer · 28 transactions | +107.3% | 5.6K | 13.4K | — | 9.2K |
| Ruppel DavidSVP & GM Transportation Bus. · 15 transactions | — | 5.3K | 4.3K | — | 2.0K |
| Nayar DeepakSVP & GM Electronics Business · 43 transactions | -55.8% | 4.9K | 33.7K | — | 30.1K |
| Cerniglia Kristina A.Director · 11 transactions | +75.3% | 4.7K | 4.4K | — | 2.3K |
| Green Maria CDirector · 8 transactions | +93.9% | 4.2K | 2.0K | — | — |
| Conrad AlexanderSVP &GM Passenger Vehicle · 16 transactions | -26.4% | 3.4K | 13.2K | — | 13.2K |
| Hamed Karim WagdySVP & GM Semiconductor Busines · 6 transactions | — | 3.0K | 3.0K | — | — |
| Delly Gayla JDirector · 7 transactions | — | 1.8K | 1.8K | — | — |
| D'Angelo Anne-Marie WSVP & CLO · 2 transactions | — | 1.7K | 1.7K | — | — |
| 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 the last 3 years: -168.4K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.