LFUS insider buying and SEC filings, explained
Littelfuse Inc. · CIK 889331
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Switchgear & Switchboard Apparatus
- State of incorporation
- DE
- Fiscal year end
- Dec 26
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$8.3M
Planned sales (10b5-1)
$1.6M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 29, 2026 | Sale | David Ruppel (SVP & GM Transportation Bus.) sold 1,493 shares at about $404.57 ($604K). Holdings down 24% to 4,720 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 30, 2026, 4:21 PM ET |
| Jun 18, 2026 | Sale | Jeffrey G Gorski (SVP & Chief Accounting Officer) sold 1,389 shares at about $482.48 ($670K). Holdings down 20% to 5,624 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 18, 2026 |
| Jun 11, 2026 | Sale | Anthony Grillo (Director) sold 3,000 shares at about $451.96 ($1.4M). Holdings down 4% to 64,928 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 11, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | Gordon Hunter (Director) sold 603 shares at $488.31 ($294K), marked as a 10b5-1 plan trade. Holdings down 2% to 26,678 shares. | SEC filing Filed Jun 4, 2026 |
| May 18, 2026 | Sale | David Ruppel (SVP & GM Transportation Bus.) sold 506 shares at $445.16 ($225K). Holdings down 9% to 5,260 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 20, 2026 |
| May 18, 2026 | Sale | Deepak Nayar (SVP & GM Electronics Business) sold 5,911 shares at $446.78 ($2.6M). Holdings down 55% to 4,882 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 20, 2026 |
| Apr 28–30, 2026 | Planned (10b5-1) | Maggie Chu (SVP, CHRO) sold 1,097 shares between Apr 28 and Apr 30 at about $393.61 ($432K), marked as a 10b5-1 plan trade. Holdings down 15% to 6,001 shares. | SEC filing Filed Apr 30, 2026 |
| Feb 24, 2026 | Planned (10b5-1) | Kristina A. Cerniglia (Director) sold 2,343 shares at $368.38 ($863K), marked as a 10b5-1 plan trade. Holdings down 36% to 4,255 shares. | SEC filing Filed Feb 25, 2026 |
| Feb 10, 2026 | Sale | Anthony Grillo (Director) sold 5,000 shares at about $346.24 ($1.7M). Holdings down 7% to 69,423 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 11, 2026 |
| Feb 2, 2026 | Sale | David Ruppel (SVP & GM Transportation Bus.) sold 1,495 shares at about $321.17 ($480K). Holdings down 23% to 4,965 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 4, 2026 |
| Dec 11, 2025 | Sale | Ryan K Stafford (Executive VP, CLO & Corp Sec) sold 2,162 shares at about $268.31 ($580K). Holdings down 7% to 28,591 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 15, 2025 |
126 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Oct 28, 2026, 7:06 AM ET 8-K | Earnings released (Item 2.02) Reg FD disclosure (Item 7.01) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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