Skip to content
Whale Atlas — Follow the signal.
Home
FULL RECORDS
Search insider filingsAll Congress filings
MORE TOOLS
WatchlistGold IntelligencePeopleCharts & technicalsCompany financialsOfficial newsMy saved workspace
YOUR RESEARCH
HomeSearch insider filingsAll Congress filings
More research tools
ExploreGold IntelligencePeopleInvestigate an ideaCharts & technicalsMore evidenceCompany financialsOfficial newsMy research & helpWatchlistMy saved workspaceLearn the basicsHow signals workData & coverage
RESOURCES
LearnMethodologyData sources
Built on public evidence.

Primary sources. Clear reasoning.
No black boxes.

Our approach
Public research workspacev1.0

Loading data…Scanning SEC filings…Checking Congress reports…Following the signal…

HomeSearchCongressWatchlist
© 2026 Whale AtlasFree public-filing research. Not financial advice. By using this site you agree to the Terms of Use.
FAQCompare trackersMethodologyData & correctionsTermsPrivacy
Back to Home
S

SMTC

Nasdaq

SEMTECH CORP

Latest disclosureOctober 5, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 39 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 114

Limited filing history
All114Buying0Selling39Other75
Filters

Last 30 daysNo qualifying insider buying. Sales: $2.12M by 5 insiders.

75 of 114 trades · April 1, 2026 – October 2, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 20 trades on this page.

Exercise or conversion

Mark Lin

EVP and CFO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded October 1, 2026Filed October 5, 2026SEC filing
Tax or exercise withholding

Mark Lin

EVP and CFO

Common Stock

Value context
$279.12K
Reported price
$178.35 / share
Traded October 1, 2026Filed October 5, 2026SEC filing
Exercise or conversion

Mark Lin

EVP and CFO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded October 1, 2026Filed October 5, 2026SEC filing
Exercise or conversion

Hong Q. Hou

President and CEO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded October 1, 2026Filed October 5, 2026SEC filing
Tax or exercise withholding

Hong Q. Hou

President and CEO

Common Stock

Value context
$588.38K
Reported price
$178.35 / share
Traded October 1, 2026Filed October 5, 2026SEC filing
Exercise or conversion

Hong Q. Hou

President and CEO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded October 1, 2026Filed October 5, 2026SEC filing
Exercise or conversion

Hong Q. Hou

President and CEO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 10, 2026Filed September 14, 2026SEC filing
Tax or exercise withholding

Hong Q. Hou

President and CEO

Common Stock

Value context
$678.22K
Reported price
$163.94 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Hong Q. Hou

President and CEO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Jason Elliot Green

EVP and CCO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 10, 2026Filed September 14, 2026SEC filing
Tax or exercise withholding

Jason Elliot Green

EVP and CCO

Common Stock

Value context
$162.14K
Reported price
$163.94 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Jason Elliot Green

EVP and CCO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

John Michael Wilson

Chief Quality Officer and CTO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 10, 2026Filed September 14, 2026SEC filing
Tax or exercise withholding

John Michael Wilson

Chief Quality Officer and CTO

Common Stock

Value context
$116.89K
Reported price
$163.94 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

John Michael Wilson

Chief Quality Officer and CTO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Mark Lin

EVP and CFO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 10, 2026Filed September 14, 2026SEC filing
Tax or exercise withholding

Mark Lin

EVP and CFO

Common Stock

Value context
$195.91K
Reported price
$163.94 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Mark Lin

EVP and CFO

Restricted Stock Unit

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 10, 2026Filed September 14, 2026SEC filing
Exercise or conversion

Asaf Silberstein

EVP and COO

Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 10, 2026Filed September 14, 2026SEC filing
Tax or exercise withholding

Asaf Silberstein

EVP and COO

Common Stock

Value context
$203.45K
Reported price
$163.94 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
EVP and CFOCommon StockOption exercise or conversion10b5-13,165$0 reported · see filingNot establishedOct 1Filed Oct 5 · 4d laterSEC filing
EVP and CFOCommon StockExercise-price or tax withholding10b5-11,565$178.35 / share$279.12KOct 1Filed Oct 5 · 4d laterSEC filing
EVP and CFORestricted Stock UnitOption exercise or conversion10b5-1Derivative units3,165Exercise / conversion price not reportedNot a separate purchaseOct 1Filed Oct 5 · 4d laterSEC filing
President and CEOCommon StockOption exercise or conversion10b5-16,483$0 reported · see filingNot establishedOct 1Filed Oct 5 · 4d laterSEC filing
President and CEOCommon StockExercise-price or tax withholding10b5-13,299$178.35 / share$588.38KOct 1Filed Oct 5 · 4d laterSEC filing
President and CEORestricted Stock UnitOption exercise or conversion10b5-1Derivative units6,483Exercise / conversion price not reportedNot a separate purchaseOct 1Filed Oct 5 · 4d laterSEC filing
President and CEOCommon StockOption exercise or conversion8,130$0 reported · see filingNot establishedSep 10Filed Sep 14 · 4d laterSEC filing
President and CEOCommon StockExercise-price or tax withholding4,137$163.94 / share$678.22KSep 10Filed Sep 14 · 4d laterSEC filing
President and CEORestricted Stock UnitOption exercise or conversionDerivative units8,130Exercise / conversion price not reportedNot a separate purchaseSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CCOCommon StockOption exercise or conversion2,511$0 reported · see filingNot establishedSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CCOCommon StockExercise-price or tax withholding989$163.94 / share$162.14KSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CCORestricted Stock UnitOption exercise or conversionDerivative units2,511Exercise / conversion price not reportedNot a separate purchaseSep 10Filed Sep 14 · 4d laterSEC filing
Chief Quality Officer and CTOCommon StockOption exercise or conversion1,400$0 reported · see filingNot establishedSep 10Filed Sep 14 · 4d laterSEC filing
Chief Quality Officer and CTOCommon StockExercise-price or tax withholding713$163.94 / share$116.89KSep 10Filed Sep 14 · 4d laterSEC filing
Chief Quality Officer and CTORestricted Stock UnitOption exercise or conversionDerivative units1,400Exercise / conversion price not reportedNot a separate purchaseSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CFOCommon StockOption exercise or conversion10b5-12,348$0 reported · see filingNot establishedSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CFOCommon StockExercise-price or tax withholding10b5-11,195$163.94 / share$195.91KSep 10Filed Sep 14 · 4d laterSEC filing
EVP and CFORestricted Stock UnitOption exercise or conversion10b5-1Derivative units2,348Exercise / conversion price not reportedNot a separate purchaseSep 10Filed Sep 14 · 4d laterSEC filing
EVP and COOCommon StockOption exercise or conversion2,439$0 reported · see filingNot establishedSep 10Filed Sep 14 · 4d laterSEC filing
EVP and COOCommon StockExercise-price or tax withholding1,241$163.94 / share$203.45KSep 10Filed Sep 14 · 4d laterSEC filing

Showing the latest 20 of 75 trades. Show all 75 trades

Congress transactions 5

All Congress filings
Partial sale disclosed

Semtech Corporation - Common Stock (SMTC) · Stock

The filing reports a partial sale for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
July 21, 2026
Filed September 4, 2026 · 45d laterOriginal report
Partial sale disclosed

Semtech Corporation - Common Stock (SMTC) · Stock

The filing reports a partial sale for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
July 16, 2026
Filed September 4, 2026 · 50d laterOriginal report
Partial sale disclosed

Semtech Corporation - Common Stock (SMTC) · Stock

The filing reports a partial sale for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
June 30, 2026
Filed July 2, 2026 · 2d laterOriginal report
Purchase disclosed

Semtech Corporation - Common Stock (SMTC) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 3, 2026
Filed April 7, 2026 · 35d laterOriginal report
Purchase disclosed

Semtech Corporation - Common Stock (SMTC) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
January 20, 2026
Filed February 13, 2026 · 24d laterOriginal report
Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0000088941
Latest public acceptance
Oct 5, 2026, 08:02 PM UTC
Score calculated
Oct 8, 2026, 12:03 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.