SEC Form 4
Semtech Corp (SMTC) insider trading
In the 12 months to Oct 26, 2026, 12 SMTC insiders reported open-market sales of $18.7M across 51 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $18.7M
- 51 filings · 12 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 39 of 51
- $11.7M of $18.7M sold (63%)
Who traded SMTC, and when
- Sale
- Sale, pre-arranged (10b5-1)
SMTC daily close from Oct 27, 2025 to Oct 26, 2026, between $62.57 and $197.20, last $138.65. 51 sale and 0 purchase filings by 12 insiders, marked at their filing dates. Asaf Silberstein, EVP and COO: sold $5.7M across 8 filings, first filed Dec 9, 2025, last Aug 19, 2026. Hong Q. Hou, President and CEO: sold $4.1M across 9 filings, first filed Dec 5, 2025, last Oct 5, 2026. Mark Lin, EVP and CFO: sold $2.5M across 9 filings, first filed Jan 6, 2026, last Oct 5, 2026. Jason Elliot Green, EVP and CCO: sold $1.4M across 3 filings, first filed Apr 2, 2026, last Oct 9, 2026. John Michael Wilson, Chief Quality Officer and CTO: sold $1.3M across 2 filings, first filed Jan 13, 2026, last Jun 24, 2026. Ye Jane Li, Director: sold $881.8K across 1 filing, first filed Jun 1, 2026, last Jun 1, 2026. 6 others: sold $2.8M across 19 filings, first filed Nov 21, 2025, last Oct 23, 2026.
Largest mark · tap a row for others
Asaf Silberstein · EVP and COO
Filing 1 of 2 within a week · $1,521,439 total
Sale $1,086,319
8,500 shares at $127.80 avg
Filed Jul 10, 2026 · traded Jul 8
Pre-arranged (10b5-1) · close on filing date $136.13
Asaf Silberstein · EVP and COO
EVP and COO
$5.7M soldHong Q. Hou · President and CEO
President and CEO
$4.1M soldMark Lin · EVP and CFO
EVP and CFO
$2.5M soldJason Elliot Green · EVP and CCO
EVP and CCO
$1.4M soldJohn Michael Wilson · Chief Quality Officer and CTO
Chief Quality Officer and CTO
$1.3M soldYe Jane Li · Director
Director
$881.8K sold6 others
Combined, one mark per week
$2.8M soldOpen-market trades
51 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Asaf Silberstein | EVP and COO | $5.7M | — | 8 | 94% of sales | |
| Hong Q. Hou | President and CEO | $4.1M | — | 9 | 46% of sales | |
| Mark Lin | EVP and CFO | $2.5M | — | 9 | 100% of sales | |
| Jason Elliot Green | EVP and CCO | $1.4M | — | 3 | 57% of sales | |
| John Michael Wilson | Chief Quality Officer and CTO | $1.3M | — | 2 | — | |
| Ye Jane Li | Director | $881.8K | — | 1 | — | |
| Rodolpho C. Cardenuto | Director | $878.0K | — | 1 | — | |
| Paul V. Walsh Jr. | Director | $685.9K | — | 12 | 100% of sales | |
| Gregory Michael Fischer | Director | $477.1K | — | 3 | 49% of sales | |
| Saar Gillai | Director | $270.9K | — | 1 | — | |
| Martin Burvill | Director | $222.4K | — | 1 | — | |
| Julie Garcia Ruehl | Director | $217.5K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $139.44 | $69.7K | 26,100 | |
traded | Jason Elliot Green EVP and CCO | SalePre-arranged (10b5-1) | 2,766 | $190.35 | $526.5K | 7,367 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $191.21 | $382.4K | 65,976 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 967 | $178.87 | $173.0K | 35,999 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $172.61 | $86.3K | 26,600 | |
traded | Rodolpho C. Cardenuto Director | Sale | 5,321 | $165.00 | $878.0K | 0 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 683 | $159.90 | $109.2K | 35,366 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $138.71 | $277.4K | 60,799 | |
traded | Julie Garcia Ruehl Director | SalePre-arranged (10b5-1) | 1,500 | $145.00 | $217.5K | 7,140 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $135.48 | $67.7K | 27,100 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 5,000 | $150.00 | $750.0K | 88,862 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $140.00 | $280.0K | 62,799 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $133.07 | $66.5K | 27,600 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 3,000 | $145.04 | $435.1K | 93,862 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $133.00 | $266.0K | 64,799 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 8,500 | $127.80 | $1.1M | 100,216 | |
traded | Jason Elliot Green EVP and CCO | SalePre-arranged (10b5-1) | 2,264 | $129.90 | $294.1K | 9,743 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 970 | $150.41 | $145.9K | 34,896 | |
traded | Gregory Michael Fischer Director | SalePre-arranged (10b5-1) | 1,500 | $156.24 | $234.4K | 5,678 | |
traded | Hong Q. Hou President and CEO | Sale | 9,605 | $152.57 | $1.5M | 63,615 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $164.99 | $82.5K | 28,100 | |
traded | John Michael Wilson Chief Quality Officer and CTO | Sale | 5,500 | $170.00 | $935.0K | 80,876 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 683 | $155.16 | $106.0K | 34,263 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $162.10 | $324.2K | 69,228 | |
traded | Asaf Silberstein EVP and COO | Sale | 2,000 | $164.00 | $328.0K | 104,165 | |
traded | Ye Jane Li Director | Sale | 5,285 | $166.84 | $881.8K | 729 | |
traded | Gregory Michael Fischer Director | Sale | 1,000 | $164.69 | $164.7K | 1,857 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $138.21 | $69.1K | 23,279 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $103.01 | $206.0K | 71,228 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $105.93 | $53.0K | 23,779 | |
traded | Hong Q. Hou President and CEO | SalePre-arranged (10b5-1) | 2,000 | $90.11 | $180.2K | 73,228 | |
traded | Martin Burvill Director | Sale | 2,500 | $88.98 | $222.4K | 4,409 | |
traded | Jason Elliot Green EVP and CCO | Sale | 7,500 | $81.73 | $613.0K | 8,811 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 974 | $78.42 | $76.4K | 33,343 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 9,186 | $75.05 | $689.4K | 32,710 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $80.87 | $40.4K | 24,279 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 6,642 | $86.43 | $574.1K | 26,536 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 6,582 | $83.75 | $551.2K | 22,125 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $88.24 | $44.1K | 24,779 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 10,000 | $92.00 | $920.0K | 68,496 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 10,000 | $88.00 | $880.0K | 78,496 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 5,000 | $83.00 | $415.0K | 88,496 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $78.25 | $39.1K | 25,279 | |
traded | John Michael Wilson Chief Quality Officer and CTO | Sale | 5,000 | $75.12 | $375.6K | 60,066 | |
traded | Gregory Michael Fischer Director | Sale | 1,034 | $75.50 | $78.1K | 2,857 | |
traded | Saar Gillai Director | Sale | 3,600 | $75.26 | $270.9K | 9,523 | |
traded | Mark Lin EVP and CFO | SalePre-arranged (10b5-1) | 1,333 | $76.20 | $101.6K | 18,477 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $71.61 | $35.8K | 25,779 | |
traded | Asaf Silberstein EVP and COO | SalePre-arranged (10b5-1) | 10,500 | $79.64 | $836.2K | 100,270 | |
traded | Hong Q. Hou President and CEO | Sale | 10,000 | $74.08 | $740.8K | 21,559 | |
traded | Paul V. Walsh Jr. Director | SalePre-arranged (10b5-1) | 500 | $63.08 | $31.5K | 26,279 |
GET /stocks/filings/vX/form-4?tickers=SMTC&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SMTC"
],
"issuer_cik": "0000088941",
"owner_cik": "0001362672",
"accession_number": "0001628280-26-067037",
"form_type": "4",
"filing_date": "2026-10-23",
"period_of_report": "2026-10-21",
"issuer_name": "SEMTECH CORP",
"issuer_trading_symbol": "SMTC",
"owner_name": "Walsh Paul V Jr",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-21",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 500,
"transaction_price_per_share": 139.44,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 26100,
"transaction_value": 69720,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025."
}
]
},
{
"tickers": [
"SMTC"
],
"issuer_cik": "0000088941",
"owner_cik": "0001801730",
"accession_number": "0001801730-26-000018",
"form_type": "4",
"filing_date": "2026-10-09",
"period_of_report": "2026-10-07",
"issuer_name": "SEMTECH CORP",
"issuer_trading_symbol": "SMTC",
"owner_name": "Green Jason Elliot",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "EVP and CCO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-07",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 2766,
"transaction_price_per_share": 190.35,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 7367,
"transaction_value": 526508.1,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Green on April 6, 2026."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 95 records
- Option exercises34 records
- Tax withholding40 records
- Grants and awards18 records
- Gifts2 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has Semtech Corp's CEO sold stock?
Yes. Hong Q. Hou (CEO) sold 33,605 shares ($4.1M) between Dec 2025 and Oct 2026, $1.9M of it under a pre-arranged 10b5-1 plan.
How current is SMTC’s insider data?
These are SMTC Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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