Updated Jul 16, 2026 · Last SEC filing 2026-07-14
SEMTECH CORP (SMTC) has filed 30 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-14. 3 Form 8-K material event filings were reported by SMTC in the last 90 days. 15 Form 144 notices of proposed sale were filed for SMTC stock. InsiderAlpha tracks every SMTC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Semiconductors & Related Devices (SIC 3674) |
|---|---|
| SEC CIK | 0000088941 |
| Form 4 filings (90d) | 30 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 15 |
| Latest Form 4 filing | 2026-07-14 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| HOU HONG Q | President and CEO | S — Open-market sale [10b5-1] | 2.0K | $133.00 | $266K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 437 | $124.19 | $54K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 3.4K | $129.94 | $436K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 1.4K | $128.70 | $180K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 588 | $127.61 | $75K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 2.4K | $125.18 | $306K | SEC | |
| Silberstein Asaf | EVP and COO | S — Open-market sale | 273 | $126.60 | $35K | SEC | |
| Green Jason Elliot | EVP and CCO | S — Open-market sale | 1.1K | $130.47 | $148K | SEC | |
| Green Jason Elliot | EVP and CCO | S — Open-market sale | 1.1K | $129.32 | $146K | SEC | |
| HOU HONG Q | President and CEO | F — Tax withholding / forfeiture | 3.3K | $161.85 | $534K | SEC | |
| HOU HONG Q | President and CEO | M — Option exercise | 6.5K | $0.00 | — | SEC | |
| Lin Mark | EVP and CFO | S — Open-market sale | 970 | $150.41 | $146K | SEC | |
| Lin Mark | EVP and CFO | F — Tax withholding / forfeiture | 1.6K | $161.85 | $253K | SEC | |
| Silberstein Asaf | EVP and COO | G — Bona-fide gift | 38.9K | $0.00 | — | SEC | |
| Silberstein Asaf | EVP and COO | G — Bona-fide gift | 38.9K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for SEMTECH CORP (SMTC). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Silberstein Asaf | 12 | $1.61M |
| HOU HONG Q | 11 | $3.45M |
| Lin Mark | 8 | $693K |
| Walsh Paul V Jr | 6 | $205K |
| Fischer Gregory Michael | 5 | $399K |
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 SMTC 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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