🕵️ Semtech Corp ($SMTC)
SEC insider & ownership activity, last 12 months · CIK 88941 · every row links its SEC filing
Over the last 12 months insiders sold $15.4M with no open-market buying against it. Silberstein Asaf sold $5.0M through a 10b5-1 trading plan in 16 lots (Aug–Jul). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 10 sellers, $15.4M (59 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Silberstein Asaf | 0 | – | 16 | $5.0M | Jul 14, 2026 |
| Hong Q. Hou | 0 | – | 7 | $3.2M | Jul 10, 2026 |
| Lin Mark | 0 | – | 11 | $2.3M | Jul 1, 2026 |
| The JOHN Michael & Noemi Wilson Family Trust DTD 01/22/20 | 0 | – | 2 | $1.3M | Jun 22, 2026 |
| Green Jason Elliot | 0 | – | 3 | $907K | Jul 7, 2026 |
| Li Ye Jane | 0 | – | 1 | $882K | May 28, 2026 |
| Fischer Gregory Michael | 0 | – | 6 | $565K | Jun 30, 2026 |
| Paul V. Walsh Jr. | 0 | – | 10 | $495K | Jul 22, 2026 |
| Burvill Martin | 0 | – | 2 | $442K | Apr 9, 2026 |
| Gillai Saar | 0 | – | 1 | $271K | Jan 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 13.8% | 13G | Jan 21, 2026 | filing ↗ | |
| Ameriprise Financial, Inc. | 8.3% | 13G | Aug 14, 2025 | filing ↗ | |
| Columbia Management Investment Advisers, LLC | 7.9% | 13G | Aug 14, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 7.5% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Paul V. Walsh Jr. | $200K | Jul 22, 2026 | filing ↗ |
| Silberstein Asaf | $1.2M | Jul 14, 2026 | filing ↗ |
| Hong Q. Hou | $266K | Jul 10, 2026 | filing ↗ |
| Silberstein Asaf | $1.1M | Jul 8, 2026 | filing ↗ |
| Green Jason Elliot | $294K | Jul 7, 2026 | filing ↗ |
| Lin Mark | $146K | Jul 1, 2026 | filing ↗ |
| Fischer Gregory Michael | $234K | Jun 30, 2026 | filing ↗ |
| Hong Q. Hou | $1.5M | Jun 29, 2026 | filing ↗ |
| The JOHN Michael & Noemi Wilson Family Trust DTD 01/22/20 | $935K | Jun 16, 2026 | filing ↗ |
| Lin Mark | $106K | Jun 10, 2026 | filing ↗ |
| Hong Q. Hou | $324K | Jun 5, 2026 | filing ↗ |
| Silberstein Family Trust | $320K | Jun 3, 2026 | filing ↗ |
| LI Revocable Trust DTD 11/27/2013 | $908K | May 28, 2026 | filing ↗ |
| Fischer Gregory Michael | $165K | May 28, 2026 | filing ↗ |
| Hong Q. Hou | $206K | May 1, 2026 | filing ↗ |
| Paul V. Walsh Jr. | $159K | Apr 22, 2026 | filing ↗ |
| Hong Q. Hou | $180K | Apr 10, 2026 | filing ↗ |
| Martin Burvill | $212K | Apr 9, 2026 | filing ↗ |
| Green Jason Elliot | $613K | Apr 1, 2026 | filing ↗ |
| Lin Mark | $76K | Apr 1, 2026 | filing ↗ |
| Lin Mark | $689K | Mar 24, 2026 | filing ↗ |
| Lin Mark | $341K | Mar 11, 2026 | filing ↗ |
| Lin Mark | $233K | Mar 10, 2026 | filing ↗ |
| Lin Mark | $551K | Mar 6, 2026 | filing ↗ |
| Silberstein Asaf | $920K | Feb 9, 2026 | filing ↗ |
| Silberstein Asaf | $880K | Feb 2, 2026 | filing ↗ |
| Silberstein Asaf | $415K | Jan 22, 2026 | filing ↗ |
| Paul V. Walsh Jr. | $89K | Jan 21, 2026 | filing ↗ |
| John Michael Wilson | $375K | Jan 8, 2026 | filing ↗ |
| Gregory Fischer | $78K | Jan 8, 2026 | filing ↗ |
| Saar Gillai | $270K | Jan 7, 2026 | filing ↗ |
| Lin Mark | $102K | Jan 5, 2026 | filing ↗ |
| Silberstein Asaf | $829K | Dec 5, 2025 | filing ↗ |
| Hong Hou | $750K | Dec 3, 2025 | filing ↗ |
| Paul V. Walsh Jr. | $99K | Oct 22, 2025 | filing ↗ |
| Lin Mark | $71K | Oct 3, 2025 | filing ↗ |
| Martin Burvill | $217K | Sep 16, 2025 | filing ↗ |
| Silberstein Asaf | $60K | Aug 29, 2025 | filing ↗ |
| Fischer Gregory Michael | $88K | Aug 29, 2025 | filing ↗ |
| Silberstein Asaf | $60K | Aug 28, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jul 6, 2026 | filing ↗ |
| New financial obligation (2.03) | Jul 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 6, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 2, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 2, 2026 | filing ↗ |
| Earnings (2.02) | May 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 26, 2026 | filing ↗ |
| Earnings (2.02) | Mar 16, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 16, 2026 | filing ↗ |
| Earnings (2.02) | Nov 24, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 24, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 7, 2025 | filing ↗ |
| New financial obligation (2.03) | Oct 7, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Oct 7, 2025 | filing ↗ |
| Other events (8.01) | Oct 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 7, 2025 | filing ↗ |
| Other events (8.01) | Oct 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 6, 2025 | filing ↗ |
| Earnings (2.02) | Aug 25, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 25, 2025 | filing ↗ |