SEMTECH (SMTC) stock: insider trades, news & valuation
Heavy selling
Close · Oct 9, 2026
$187.30
-0.1% on the day
+167.4% over 12 months
52-week range $62.57 – $197.20
Share price and insider trades
SMTC closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$18.6M
Insiders buying0
Insiders selling12
SEMTECH insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 12 sold $18.6M of SMTC stock on the open market.
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SMTC insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | $1.1M | 3 |
| Q3 2026 | — | 0 | $5.0M | 20 |
| Q2 2026 | — | 0 | $5.9M | 17 |
| Q1 2026 | — | 0 | $5.0M | 14 |
| Q4 2025 | — | 0 | $1.7M | 9 |
Valuation, profit and volume
P/E (trailing)n/aSector median —
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day0.8×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 SEMTECH CORP insiders reported open-market purchases totaling $0, while 12 insiders reported sales totaling $18.6M. 50 of 63 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 9 NewSEC | Jason Elliot GreenEvp And Cco | Sell Plan | 2,7667,367 held (−27%) | $190.35 | $527K | -1.6% | — |
| Oct 5SEC | Hong Q HouCEO, President | Sell Plan | 2,00065,976 held (−3%) | $191.21 | $382K | -2.0% | — |
| Oct 5SEC | Mark LinCFO | Sell Plan | 96735,999 held (−3%) | $178.87 | $173K | +4.7% | — |
| Sep 25SEC | Paul V Walsh Jr.Director | Sell Plan | 50026,600 held (−2%) | $172.61 | $86K | +8.5% | — |
| Sep 18SEC | Rodolpho C CardenutoDirector | Sell | 5,321 | $165.00 | $878K | +13.5% | — |
| Sep 14SEC | Mark LinCFO | Sell Plan | 68335,366 held (−2%) | $159.90 | $109K | +17.1% | — |
| Sep 9SEC | Hong Q HouCEO, President | Sell Plan | 2,00060,799 held (−3%) | $138.71 | $277K | +35.0% | — |
| Sep 9SEC | Julie Garcia RuehlDirector | Sell Plan | 1,5007,140 held (−17%) | $145.00 | $218K | +29.2% | — |
| Aug 21SEC | Paul V Walsh Jr.Director | Sell Plan | 50027,100 held (−2%) | $135.48 | $68K | +38.2% | — |
| Aug 19SEC | Asaf SilbersteinCOO | Sell Plan | 5,00088,862 held (−5%) | $150.00 | $750K | +24.9% | — |
| Aug 11SEC | Hong Q HouCEO, President | Sell Plan | 2,00062,799 held (−3%) | $140.00 | $280K | +33.8% | — |
| Jul 24SEC | Paul V Walsh Jr.Director | Sell Plan | 50027,600 held (−2%) | $133.07 | $67K | +40.8% | — |
| Jul 16SEC | Asaf SilbersteinCOO | Sell Plan | 3,00093,862 held (−3%) | $145.04 | $435K | +29.1% | — |
| Jul 14SEC | Hong Q HouCEO, President | Sell Plan | 2,00064,799 held (−3%) | $133.00 | $266K | +40.8% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 3,35496,862 held (−3%) | $129.94 | $436K | +44.1% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 2,448102,477 held (−2%) | $125.18 | $306K | +49.6% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 1,400100,216 held (−1%) | $128.70 | $180K | +45.5% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 588101,616 held (−1%) | $127.61 | $75K | +46.8% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 437104,925 held (−0%) | $124.19 | $54K | +50.8% | — |
| Jul 10SEC | Asaf SilbersteinCOO | Sell Plan | 273102,204 held (−0%) | $126.60 | $35K | +47.9% | — |
| Jul 9SEC | Jason Elliot GreenEvp And Cco | Sell Plan | 1,1328,611 held (−12%) | $130.48 | $148K | +43.5% | — |
| Jul 9SEC | Jason Elliot GreenEvp And Cco | Sell Plan | 1,1329,743 held (−10%) | $129.32 | $146K | +44.8% | — |
| Jul 6SEC | Mark LinCFO | Sell Plan | 97034,896 held (−3%) | $150.41 | $146K | +24.5% | — |
| Jul 2SEC | Gregory Michael FischerDirector | Sell Plan | 1,5005,678 held (−21%) | $156.24 | $234K | +19.9% | — |
| Jul 1SEC | Hong Q HouCEO, President | Sell | 7,31965,901 held (−10%) | $152.43 | $1.1M | +22.9% | — |
| Jul 1SEC | Hong Q HouCEO, President | Sell | 2,28663,615 held (−3%) | $152.99 | $350K | +22.4% | — |
| Jun 26SEC | Paul V Walsh Jr.Director | Sell Plan | 50028,100 held (−2%) | $164.99 | $82K | +13.5% | — |
| Jun 24SEC | John Michael WilsonCTO | Sell | 5,50080,876 held (−6%) | $170.00 | $935K | +10.2% | — |
| Jun 12SEC | Mark LinCFO | Sell Plan | 68334,263 held (−2%) | $155.16 | $106K | +20.7% | — |
| Jun 9SEC | Hong Q HouCEO, President | Sell Plan | 2,00069,228 held (−3%) | $162.10 | $324K | +15.5% | — |
| Jun 5SEC | Asaf SilbersteinCOO | Sell | 2,000104,165 held (−2%) | $164.00 | $328K | +14.2% | — |
| Jun 1SEC | Ye Jane LiDirector | Sell | 5,285729 held (−88%) | $166.84 | $882K | +12.3% | — |
| Jun 1SEC | Gregory Michael FischerDirector | Sell | 1,0001,857 held (−35%) | $164.69 | $165K | +13.7% | — |
| May 22SEC | Paul V Walsh Jr.Director | Sell Plan | 50023,279 held (−2%) | $138.21 | $69K | +35.5% | — |
| May 5SEC | Hong Q HouCEO, President | Sell Plan | 2,00071,228 held (−3%) | $103.01 | $206K | +81.8% | — |
| Apr 24SEC | Paul V Walsh Jr.Director | Sell Plan | 50023,779 held (−2%) | $105.93 | $53K | +76.8% | — |
| Apr 14SEC | Hong Q HouCEO, President | Sell Plan | 2,00073,228 held (−3%) | $90.11 | $180K | +107.9% | — |
| Apr 13SEC | Martin BurvillDirector | Sell | 2,5004,409 held (−36%) | $88.98 | $222K | +110.5% | — |
| Apr 2SEC | Jason Elliot GreenEvp And Cco | Sell | 7,5008,811 held (−46%) | $81.73 | $613K | +129.2% | — |
| Apr 2SEC | Mark LinCFO | Sell Plan | 97433,343 held (−3%) | $78.42 | $76K | +138.8% | — |
| Mar 25SEC | Mark LinCFO | Sell Plan | 9,18632,710 held (−22%) | $75.05 | $689K | +149.6% | — |
| Mar 20SEC | Paul V Walsh Jr.Director | Sell Plan | 50024,279 held (−2%) | $80.87 | $40K | +131.6% | — |
| Mar 12SEC | Mark LinCFO | Sell Plan | 3,90826,536 held (−13%) | $87.24 | $341K | +114.7% | — |
| Mar 12SEC | Mark LinCFO | Sell Plan | 2,73430,444 held (−8%) | $85.27 | $233K | +119.7% | — |
| Mar 9SEC | Mark LinCFO | Sell Plan | 6,58222,125 held (−23%) | $83.75 | $551K | +123.6% | — |
| Feb 20SEC | Paul V Walsh Jr.Director | Sell Plan | 50024,779 held (−2%) | $88.24 | $44K | +112.3% | — |
| Feb 11SEC | Asaf SilbersteinCOO | Sell Plan | 10,00068,496 held (−13%) | $92.00 | $920K | +103.6% | — |
| Feb 4SEC | Asaf SilbersteinCOO | Sell Plan | 10,00078,496 held (−11%) | $88.00 | $880K | +112.8% | — |
| Jan 26SEC | Asaf SilbersteinCOO | Sell Plan | 5,00088,496 held (−5%) | $83.00 | $415K | +125.7% | — |
| Jan 23SEC | Paul V Walsh Jr.Director | Sell Plan | 50025,279 held (−2%) | $78.25 | $39K | +139.4% | — |
| Jan 13SEC | John Michael WilsonCTO | Sell | 5,00060,066 held (−8%) | $75.12 | $376K | +149.3% | — |
| Jan 13SEC | Gregory Michael FischerDirector | Sell | 1,0342,857 held (−27%) | $75.50 | $78K | +148.1% | — |
| Jan 9SEC | Saar GillaiDirector | Sell | 3,6009,523 held (−27%) | $75.26 | $271K | +148.9% | — |
| Jan 6SEC | Mark LinCFO | Sell Plan | 1,33318,477 held (−7%) | $76.20 | $102K | +145.8% | — |
| Dec 19SEC | Paul V Walsh Jr.Director | Sell Plan | 50025,779 held (−2%) | $71.61 | $36K | +161.6% | — |
| Dec 9SEC | Asaf SilbersteinCOO | Sell Plan | 6,77493,496 held (−7%) | $79.93 | $541K | +134.3% | — |
| Dec 9SEC | Asaf SilbersteinCOO | Sell Plan | 3,726100,270 held (−4%) | $79.11 | $295K | +136.8% | — |
| Dec 5SEC | Hong Q HouCEO, President | Sell | 10,00021,559 held (−32%) | $74.08 | $741K | +152.8% | — |
| Nov 21SEC | Paul V Walsh Jr.Director | Sell Plan | 50026,279 held (−2%) | $63.08 | $32K | +196.9% | — |
| Oct 24SEC | Paul V Walsh Jr.Director | Sell Plan | 50026,779 held (−2%) | $66.24 | $33K | +182.8% | — |
| Oct 3SEC | Mark LinCFO | Sell Plan | 53617,893 held (−3%) | $73.27 | $39K | +155.6% | — |
| Oct 3SEC | Mark LinCFO | Sell Plan | 38618,429 held (−2%) | $72.07 | $28K | +159.9% | — |
| Oct 3SEC | Mark LinCFO | Sell Plan | 4917,844 held (−0%) | $73.92 | $4K | +153.4% | — |
Insiders at SEMTECH CORP
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Asaf SilbersteinCOO | — | $5.7M | Aug 19, 2026 | — |
| Hong Q HouCEO, President | — | $4.1M | Oct 5, 2026 | — |
| Mark LinCFO | — | $2.6M | Oct 5, 2026 | — |
| Jason Elliot GreenEvp And Cco | — | $1.4M | Oct 9, 2026 | — |
| John Michael WilsonCTO | — | $1.3M | Jun 24, 2026 | — |
| Ye Jane LiDirector | — | $882K | Jun 1, 2026 | — |
| Rodolpho C CardenutoDirector | — | $878K | Sep 18, 2026 | — |
| Paul V Walsh Jr.Director | — | $649K | Sep 25, 2026 | — |
| Gregory Michael FischerDirector | — | $477K | Jul 2, 2026 | — |
| Saar GillaiDirector | — | $271K | Jan 9, 2026 | — |
| Martin BurvillDirector | — | $222K | Apr 13, 2026 | — |
| Julie Garcia RuehlDirector | — | $218K | Sep 9, 2026 | — |
SMTC stock: common questions
Are SEMTECH CORP insiders buying SMTC stock?
In the past 12 months, 0 insiders reported open-market purchases of SMTC worth $0.
Are SEMTECH CORP insiders selling SMTC stock?
12 insiders reported sales worth $18.6M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is SMTC's 52-week range?
Over the past year SMTC has traded between $62.57 and $197.20. It last closed at $187.30 on Oct 9, 2026.