Over the last 12 months, Semtech insiders reported no purchases and 47 sales totaling $16.9M across SEC Form 4 filings. 77% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 683 | $159.9 | $109K | -1.9% | plan |
| Sep 4, 2026 | Ruehl Julie GarciaD | ▼ Sale | 1,500 | $145 | $218K | -17.4% | plan |
| Sep 4, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $138.71 | $277K | -3.2% | plan |
| Aug 19, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $135.48 | $68K | -1.8% | plan |
| Aug 17, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 5,000 | $150 | $750K | -5.3% | plan · indirect |
| Aug 7, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $140 | $280K | -3.1% | plan |
| Jul 22, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $133.07 | $67K | -1.8% | plan |
| Jul 14, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 3,000 | $145.04 | $435K | -3.1% | plan · indirect |
| Jul 10, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $133 | $266K | -3% | plan |
| Jul 8, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 8,500 | $127.8 | $1.1M | -8.1% | plan · 6 tranches · indirect |
| Jul 7, 2026 | Green Jason ElliotEVP and CCO · O | ▼ Sale | 2,264 | $129.9 | $294K | -20.8% | plan · 2 tranches |
| Jul 1, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 970 | $150.4 | $146K | -2.7% | plan |
| Jun 30, 2026 | Fischer Gregory MichaelD | ▼ Sale | 1,500 | $156.24 | $234K | -20.9% | plan |
| Jun 29, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 9,605 | $152.57 | $1.5M | -13.1% | 2 tranches |
| Jun 24, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $164.99 | $82K | -1.7% | plan |
| Jun 22, 2026 | WILSON JOHN MICHAELChief Quality Officer and CTO · O | ▼ Sale | 5,500 | $170 | $935K | -6.4% | — |
| Jun 10, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 683 | $155.16 | $106K | -2% | plan |
| Jun 5, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $162.1 | $324K | -2.8% | plan |
| Jun 3, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 2,000 | $164 | $328K | -1.9% | — |
| May 28, 2026 | Fischer Gregory MichaelD | ▼ Sale | 1,000 | $164.68 | $165K | -35% | — |
| May 28, 2026 | Li Ye JaneD | ▼ Sale | 5,285 | $166.84 | $882K | -87.9% | — |
| May 1, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $103.01 | $206K | -2.7% | plan |
| Apr 22, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $105.93 | $53K | -2.1% | plan |
| Apr 10, 2026 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 2,000 | $90.11 | $180K | -2.7% | plan |
| Apr 9, 2026 | Burvill MartinD | ▼ Sale | 2,500 | $88.98 | $222K | -36.2% | — |
| Apr 1, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 974 | $78.42 | $76K | -2.8% | plan |
| Apr 1, 2026 | Green Jason ElliotEVP and CCO · O | ▼ Sale | 7,500 | $81.73 | $613K | -46% | — |
| Mar 24, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 9,186 | $75.05 | $689K | -21.9% | plan |
| Mar 23, 2026 | Lin MarkEVP and CFO · O | ▽ Sale to issuer | 3,848 | $76.52 | $294K | -8.4% | plan |
| Mar 18, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $80.87 | $40K | -2% | plan |
| Mar 11, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 6,642 | $86.43 | $574K | -20% | plan · 2 tranches |
| Mar 6, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 6,582 | $83.75 | $551K | -22.9% | plan |
| Feb 18, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $88.24 | $44K | -2% | plan |
| Feb 9, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 10,000 | $92 | $920K | -12.7% | plan |
| Feb 2, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 10,000 | $88 | $880K | -11.3% | plan |
| Jan 22, 2026 | Silberstein AsafEVP and COO · O | ▼ Sale | 5,000 | $83 | $415K | -5.3% | plan |
| Jan 21, 2026 | Walsh Paul V JrD | ▼ Sale | 500 | $78.25 | $39K | -1.9% | plan |
| Jan 9, 2026 | Fischer Gregory MichaelD | ▼ Sale | 1,034 | $75.5 | $78K | -26.6% | — |
| Jan 8, 2026 | WILSON JOHN MICHAELChief Quality Officer and CTO · O | ▼ Sale | 5,000 | $75.12 | $376K | -7.7% | — |
| Jan 7, 2026 | Gillai SaarD | ▼ Sale | 3,600 | $75.26 | $271K | -27.4% | — |
| Jan 5, 2026 | Lin MarkEVP and CFO · O | ▼ Sale | 1,333 | $76.2 | $102K | -6.7% | plan |
| Dec 17, 2025 | Walsh Paul V JrD | ▼ Sale | 500 | $71.61 | $36K | -1.9% | plan |
| Dec 5, 2025 | Silberstein AsafEVP and COO · O | ▼ Sale | 10,500 | $79.64 | $836K | -10.1% | plan · 2 tranches |
| Dec 3, 2025 | HOU HONG QPresident and CEO · O·D | ▼ Sale | 10,000 | $74.08 | $741K | -31.7% | — |
| Nov 19, 2025 | Walsh Paul V JrD | ▼ Sale | 500 | $63.08 | $32K | -1.9% | plan |
| Oct 22, 2025 | Walsh Paul V JrD | ▼ Sale | 500 | $66.24 | $33K | -1.8% | plan |
| Oct 3, 2025 | Lin MarkEVP and CFO · O | ▼ Sale | 971 | $72.83 | $71K | -5.2% | plan · 3 tranches |
| Sep 16, 2025 | Burvill MartinD | ▼ Sale | 3,500 | $62.75 | $220K | -33.6% | — |
| Aug 29, 2025 | Fischer Gregory MichaelD | ▼ Sale | 1,500 | $58.44 | $88K | -27.8% | plan · 3 tranches |
| Aug 29, 2025 | Silberstein AsafEVP and COO · O | ▼ Sale | 2,000 | $59.21 | $118K | -1.9% | plan · 3 tranches |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Semtech filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $SMTC feed.