Company profile
Littelfuse Inc /de Insider Trading
LFUSEvery SEC Form 4 insider trading filing for Littelfuse Inc /de (LFUS) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Switchgear & Switchboard Apparatus
- CIK
- 0000889331
- Filings
- 315
- Insiders
- 25
- Last filing
- 2026-08-14
Activity summary
Mixed insider activity over the last 30 days: 2 purchases and 2 sales (4 transactions total).
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Littelfuse Inc /de insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $17.0M.
90 day insight
Over the last 90 days, Littelfuse Inc /de insiders bought $2.8M (34 transactions) and sold $8.3M (13 transactions).
- Most active insider: Kim Peter Sung-Jip with 11 transactions totaling $7.4M.
- Largest single sale: $4.9M by Kim Peter Sung-Jip on Jun 2, 2026.
- 7% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Ruppel David | LFUS | Tax Withholding | 168 | $457.57 | $77K |
| Aug 11, 2026 | Hamed Karim Wagdy | LFUS | Tax Withholding | 141 | $453.87 | $64K |
| Aug 6, 2026 | Kelsey Todd P. | LFUS | Award | 294 | — | — |
| Jul 30, 2026 | PAEPER HOLLY Beth | LFUS | Award | 56 | $442.00 | $25K |
| Jun 18, 2026 | Gorski Jeffrey G | LFUS | Sale | 247 | $483.26 | $119K |
45 more transactions hidden
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Query this yourself
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Littelfuse Inc /de as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →