LFUS - CIK 0000889331
LITTELFUSE INC /DE has filed 2,583 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (1,773 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-28 | 2025-04-24 |
| Insider trade | 4 | 2025-04-16 | 2025-04-14 |
| Major company event | 8-K | 2025-04-09 | 2025-04-08 |
| Insider sale notice | 144 | 2025-04-07 | - |
| Insider trade | 4 | 2025-03-31 | 2025-03-28 |
| Insider trade | 4 | 2025-03-24 | 2025-03-21 |
| Annual report to shareholders | ARS | 2025-03-14 | 2024-12-28 |
| Proxy materials | DEFA14A | 2025-03-14 | - |
| Proxy statement | DEF 14A | 2025-03-14 | 2025-04-24 |
| Annual report | 10-K | 2025-03-13 | 2024-12-28 |
| Insider trade | 4 | 2025-03-10 | 2025-03-07 |
| Insider trade | 4 | 2025-03-10 | 2025-03-07 |
| Insider trade | 4 | 2025-03-10 | 2025-03-07 |
| Insider trade | 4 | 2025-03-10 | 2025-03-07 |
| NT 10-K | - | 2025-02-27 | 2024-12-28 |
| Insider sale notice | 144 | 2025-02-19 | - |
| Insider trade | 4 | 2025-02-19 | 2025-02-19 |
| Insider sale notice | 144 | 2025-02-14 | - |
| New insider ownership | 3 | 2025-02-14 | 2025-02-10 |
| Insider trade | 4 | 2025-02-14 | 2025-02-14 |
| Insider trade | 4 | 2025-02-07 | 2025-02-06 |
| Insider trade | 4 | 2025-02-06 | 2025-02-04 |
| Insider trade | 4 | 2025-01-30 | 2025-01-30 |
| Major company event | 8-K | 2025-01-28 | 2025-01-28 |
| Insider trade | 4 | 2025-01-27 | 2025-01-23 |
| Insider trade | 4 | 2025-01-27 | 2025-01-23 |
| Insider trade | 4 | 2025-01-27 | 2025-01-23 |
| Insider trade | 4 | 2025-01-24 | 2024-02-01 |
| Insider trade | 4 | 2025-01-17 | 2025-01-15 |
| Insider sale notice | 144 | 2025-01-15 | - |
| Insider trade | 4 | 2025-01-13 | 2025-01-10 |
| Insider trade | 4 | 2025-01-13 | 2025-01-10 |
| Major company event | 8-K | 2025-01-13 | 2025-01-10 |
| Insider trade | 4 | 2024-12-16 | 2024-12-12 |
| Insider sale notice | 144 | 2024-12-12 | - |
| Insider trade | 4 | 2024-12-09 | 2024-12-06 |
| Insider trade | 4 | 2024-12-09 | 2024-12-06 |
| Insider trade | 4 | 2024-12-09 | 2024-12-06 |
| Insider trade | 4 | 2024-12-09 | 2024-12-06 |
| Passive ownership stake (update) | SC 13G/A | 2024-11-14 | - |
| Quarterly report | 10-Q | 2024-10-30 | 2024-09-28 |
| Major company event | 8-K | 2024-10-29 | 2024-10-29 |
| Insider trade | 4 | 2024-09-13 | 2024-09-12 |
| Insider sale notice | 144 | 2024-09-12 | - |