Updated Jul 16, 2026 · Last SEC filing 2026-06-22
LITTELFUSE INC /DE (LFUS) has filed 51 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-22. 3 Form 8-K material event filings were reported by LFUS in the last 90 days. 10 Form 144 notices of proposed sale were filed for LFUS stock. InsiderAlpha tracks every LFUS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000889331 |
|---|
| Form 4 filings (90d) | 51 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 10 |
| Latest Form 4 filing | 2026-06-22 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Gorski Jeffrey G | SVP & Chief Accounting Officer | S — Open-market sale | 1.1K | $482.31 | $551K | SEC | |
| Gorski Jeffrey G | SVP & Chief Accounting Officer | S — Open-market sale | 247 | $483.26 | $119K | SEC | |
| Khandelwal Abhishek | Executive VP, CFO | F — Tax withholding / forfeiture | 1.1K | $479.82 | $538K | SEC | |
| Gorski Jeffrey G | SVP & Chief Accounting Officer | M — Option exercise | 689 | $166.63 | $115K | SEC | |
| HUNTER GORDON | Director | M — Option exercise | 1.4K | $132.08 | $189K | SEC | |
| HUNTER GORDON | Director | S — Open-market sale | 1.4K | $480.00 | $687K | SEC | |
| GRILLO ANTHONY | Director | S — Open-market sale | 38 | $452.75 | $17K | SEC | |
| GRILLO ANTHONY | Director | S — Open-market sale | 256 | $450.66 | $115K | SEC | |
| GRILLO ANTHONY | Director | S — Open-market sale | 35 | $449.76 | $16K | SEC | |
| GRILLO ANTHONY | Director | S — Open-market sale | 209 | $454.07 | $95K | SEC | |
| GRILLO ANTHONY | Director | S — Open-market sale | 2.5K | $451.93 | $1.11M | SEC | |
| Gorski Jeffrey G | SVP & Chief Accounting Officer | A — Grant or award | 1 | $480.24 | $480 | SEC | |
| Kim Peter Sung-Jip | SVP & GM Industrial Business | A — Grant or award | 5 | $480.24 | $2K | SEC | |
| PAEPER HOLLY Beth | Director | A — Grant or award | 1 | $480.24 | $480 | SEC | |
| Ruppel David | SVP & GM Transportation Bus. | A — Grant or award | 5 | $480.24 | $2K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for LITTELFUSE INC /DE (LFUS). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Chu Maggie | 18 | $8.36M |
| Kim Peter Sung-Jip | 16 | $7.67M |
| Nayar Deepak | 13 | $4.33M |
| Gorski Jeffrey G | 9 | $1.06M |
| GRILLO ANTHONY | 8 | $1.37M |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in LFUS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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