Every Form 4 that Semtech Corp (SMTC) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow SMTC and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SMTC filings page.
SEMTECH CORP (SMTC) director Rodolpho C. Cardenuto reported selling 5,321 shares of common stock on September 16, 2026 in an open-market or private transaction. The weighted-average sale price was $165.0025 per share, with individual sale prices ranging from $165.00 to $165.03. Following this transaction, he reported holding no shares of Semtech common stock directly. No Rule 10b5-1 trading plan is reported for this sale.
SEMTECH CORP (SMTC) reported that President and CEO Hong Q. Hou exercised 8,130 Restricted Stock Units into 8,130 shares of common stock on September 10, 2026. The RSU grant vests over time, with one third vesting on March 10, 2026 and the remainder in eight quarterly installments beginning June 10, 2026. On the same date, 4,137 common shares were delivered or withheld to cover the exercise price or tax liability at a reported reference price of $163.94 per share. Following the RSU exercise, Hou directly held 48,775 Restricted Stock Units.
SEMTECH CORP (SMTC) reported that EVP and CCO Jason Elliot Green exercised 2,511 Restricted Stock Units on September 10, 2026, receiving an equivalent number of common shares. Of the common shares issued, 989 shares were delivered or withheld to cover the exercise price or tax liability at $163.94 per share. Following this transaction, Green held 15,065 Restricted Stock Units directly. No Rule 10b5-1 trading plan is reported for these transactions.
SEMTECH CORP (SMTC) reports that Chief Quality Officer and CTO John Michael Wilson exercised 1,400 Restricted Stock Units into 1,400 shares of common stock on September 10, 2026. In a related transaction, 713 common shares were delivered or withheld at $163.94 per share to pay the exercise price or tax liability, and 8,400 Restricted Stock Units remain outstanding. No Rule 10b5-1 trading plan is reported for these transactions.
SEMTECH CORP (SMTC) reports that EVP and CFO Mark Lin exercised 2,348 restricted stock units into common shares on September 10, 2026. Of the resulting shares, 1,195 were delivered or withheld to cover the exercise price or tax liability at $163.94 per share, and 683 shares were sold at $159.90 per share under a Rule 10b5-1 trading plan. Following the conversion, Lin held 14,091 restricted stock units directly.
SEMTECH CORP (SMTC) reported that EVP and COO Asaf Silberstein converted 2,439 Restricted Stock Units into the same number of shares of common stock on September 10, 2026 as part of an equity award vesting schedule. Shares represent stock units that each carry a contingent right to one Semtech share. In a related move that day, 1,241 common shares were delivered or withheld to cover the exercise price or tax liability at $163.94 per share. Following the RSU conversion, Silberstein held 14,633 common shares directly and 88,862 shares indirectly through a Family Trust. No Rule 10b5-1 trading plan is reported.
SEMTECH CORP (SMTC) director Julie Garcia Ruehl reported selling 1,500 shares of common stock on September 4, 2026 at $145.00 per share in an open-market or private transaction. The sale was made pursuant to a Rule 10b5-1 trading plan adopted on May 29, 2026, and she held 7,140 shares directly after the transaction.
SEMTECH CORP (SMTC) reported that President and CEO Dr. Hong Q. Hou sold 2,000 shares of common stock on September 4, 2026 in an open-market transaction at $138.71 per share. After this sale, Dr. Hou directly holds 60,799 shares of Semtech common stock. The sale was made pursuant to a Rule 10b5-1 trading plan adopted on December 17, 2025.
SEMTECH CORP (SMTC) director Paul V. Walsh Jr. reported a sale of 500 shares of Common Stock on August 19, 2026 at $135.48 per share in an open-market or private transaction. After this sale, he directly holds 27,100 shares. The trade was made pursuant to a Rule 10b5-1 trading plan adopted on July 9, 2025.
SEMTECH CORP (SMTC) executive Asaf Silberstein, EVP and COO, reported an indirect sale of 5,000 shares of common stock at $150.00 per share on August 17, 2026. The shares are held by a Family Trust, and Silberstein reported 88,862 shares remaining indirectly owned after the sale. The transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on April 8, 2026.
Semtech Corp President and CEO Hong Q. Hou reported selling 2,000 shares of common stock on August 7, 2026 at $140.00 per share in an open market or private transaction. The sale was made under a Rule 10b5-1 trading plan adopted on December 17, 2025. Following this transaction, Hou directly holds 62,799 shares of Semtech common stock.
Semtech Corp director Paul V. Walsh Jr. sold 500 shares of Common Stock on July 22, 2026, at $133.07 per share in an open market or private transaction pursuant to a Rule 10b5-1 trading plan adopted July 9, 2025, and now holds 27,600 shares directly.
Semtech Corp executive Asaf Silberstein, EVP and COO, reported an open-market sale of 3,000 shares of common stock on July 14, 2026 at an average price of $145.04 per share. The shares were held indirectly by a Family Trust, which continues to hold 93,862 shares after the transaction.
The sale was executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted by Silberstein on April 8, 2026, indicating the timing was set in advance rather than as a discretionary trade.
Semtech Corp President and CEO Hong Q. Hou executed an open-market sale of 2,000 shares of Common Stock on July 10, 2026 at $133.00 per share. The transaction was made pursuant to a Rule 10b5-1 trading plan, and Hou continues to hold 64,799 shares directly after the sale.
Semtech Corp executive Asaf Silberstein reported open-market sales of company stock by a Family Trust on behalf of his holdings. On July 8, 2026, the trust sold a total of 8,500 shares of Semtech common stock in multiple transactions at prices ranging from $123.84 to $130.00 per share. These sales were made pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026. Following the reported sales, the Family Trust held 96,862 shares of Semtech common stock indirectly attributed to Mr. Silberstein.
Semtech Corporation executive Jason Elliot Green reported selling 2,264 shares of Common Stock in open-market transactions. The sales occurred on July 7, 2026 at prices around $129–$130 per share. Green is the company’s EVP and Chief Commercial Officer.
The transactions were executed as part of a Rule 10b5-1 trading plan that Green adopted on April 6, 2026, meaning the trades were pre-scheduled rather than timed at his discretion. All reported holdings are shown as directly owned Common Stock.
Semtech EVP and CFO Mark Lin exercised 3,164 restricted stock units into common stock and completed related tax withholding and sale transactions on July 1, 2026. Of the vested shares, 1,561 were disposed of to cover tax obligations and 970 were sold in an open-market trade at $150.405 per share. Following these transactions, Lin directly holds 34,896 shares of Semtech common stock. The filing notes that the sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on June 23, 2025.
SEMTECH CORP EVP and COO Asaf Silberstein reported bona fide gifts of 77,732 shares of Common Stock. The Form 4 shows two gift transactions of 38,866 shares each on 2026-07-01 at a stated price of $0.00 per share.
After these transfers, he holds 105,362 shares indirectly "by Family Trust" and no shares directly. A footnote explains the shares are held by The Silberstein Family Trust, where he is a trustee and he and his immediate family are sole beneficiaries, so the transactions represent estate or family planning rather than market trading.
Semtech Corp President and CEO Hong Q. Hou reported routine equity compensation activity involving company stock. On July 1, 2026, he exercised 6,484 Restricted Stock Units, receiving the same number of Semtech common shares as part of his compensation.
To satisfy related tax obligations, 3,300 common shares were withheld at a price of $161.85 per share, a non-market "F" code tax-withholding disposition rather than an open-market sale. After these transactions, he directly holds 66,799 shares of common stock and 25,933 Restricted Stock Units, which represent additional shares that may be delivered as they vest over time.
Semtech Corp director Gregory Michael Fischer reported an open-market sale of 1,500 shares of Common Stock. The shares were sold at a price of $156.24 per share, and he now directly holds 5,678 shares following the transaction.
The sale took place on June 30, 2026 and was executed pursuant to a Rule 10b5-1 trading plan that Mr. Fischer adopted on March 30, 2026. Such trading plans are pre-arranged and are designed to allow insiders to sell shares on a scheduled basis.
Semtech President and CEO Hong Q. Hou sold 9,605 shares of Semtech common stock in open-market transactions. The sales occurred on June 29, 2026 in two tranches of 2,286 and 7,319 shares at weighted average prices of $152.9933 and $152.4341 per share. Footnotes state that individual trade prices ranged from $151.83 to $153.05, and full price and share details are available upon request.
SEMTECH CORP director Paul V. Walsh Jr. reported an open-market sale of 500 shares of Common Stock at an average price of $164.99 per share. After this transaction, he directly holds 28,100 shares. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025.
SEMTECH CORP Chief Quality Officer and CTO John Michael Wilson reported an open-market sale of 5,500 shares of Common Stock on June 22, 2026 at a price of $170.00 per share. After this transaction, he directly holds 80,876 shares of the company’s stock.
Semtech’s Chief Quality Officer and CTO John Michael Wilson reported routine equity compensation activity. He exercised 1,400 restricted stock units into the same number of common shares, with 713 shares withheld to cover tax obligations. Following these transactions, he directly holds 86,376 common shares and 9,800 restricted stock units representing potential future shares as they vest.
Semtech EVP and COO Asaf Silberstein reported routine equity compensation activity involving company stock. He exercised 2,438 restricted stock units into an equal number of common shares and, in a related move, 1,241 common shares were disposed of to cover tax obligations through share withholding.
After these transactions, he directly holds 105,362 shares of Semtech common stock and 17,072 restricted stock units. The filing reflects option/RSU vesting and associated tax payments rather than open-market buying or selling.
Semtech Corp President and CEO Hou Hong Q exercised 8,129 Restricted Stock Units on June 10, 2026, converting them into the same number of shares of common stock at no cash cost. Of these, 4,137 common shares were disposed of as a tax-withholding transaction at $157.52 per share.
After these transactions, Hou Hong Q directly holds 73,220 shares of Semtech common stock. Each stock unit represents the contingent right to receive one Semtech common share, and one third of the underlying grant vested on March 10, 2026, with the remainder vesting in eight quarterly installments beginning June 10, 2026. These transactions were not reported under a Rule 10b5-1 trading plan.
Semtech EVP and CCO Jason Elliot Green reported routine equity compensation activity. He exercised 2,510 restricted stock units, receiving the same number of Semtech common shares, and 988 shares were disposed of to cover tax obligations. After these transactions, he directly holds 10,875 shares of common stock and 17,576 restricted stock units, which each represent the contingent right to receive one share of Semtech common stock. One third of this grant vested on March 10, 2026, with the remainder vesting in eight quarterly installments beginning on June 10, 2026.
Semtech Executive Vice President and CFO Mark Lin reported a combination of stock transactions involving his common shares and restricted stock units. He exercised 2,349 restricted stock units into common stock, with 1,196 shares disposed of to cover tax obligations and 683 shares sold in an open-market transaction at $155.16 per share.
The filing notes that the sale was made pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on June 23, 2025. After these transactions, Lin directly holds 34,263 shares of Semtech common stock.
Semtech Corp President and CEO Hong Q. Hou reported an open-market sale of 2,000 shares of common stock on June 5, 2026 at $162.10 per share. After this transaction, he directly holds 69,228 shares. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 17, 2025.
SEMTECH CORP executive Asaf Silberstein, EVP and COO, reported an open-market sale of 2,000 shares of common stock at $164.0000 per share. The shares are held by The Silberstein Family Trust, for which he serves as trustee, and his direct holdings after the sale total 104,165 shares.
SEMTECH CORP director Julie Garcia Ruehl reported routine equity compensation activity. She received a grant of 1,180 restricted stock units, each representing the right to receive one share of Semtech common stock. This award fully vested on the day immediately preceding the 2026 Annual Meeting of Stockholders.
Ruehl also exercised 2,661 restricted stock units into 2,661 shares of common stock. Following these transactions, she directly owned 8,640 shares of Semtech common stock and 2,660 restricted stock units that remain outstanding and will be settled in shares under the company’s director deferred compensation plan.
Semtech director Ye Jane Li reported equity compensation activity involving restricted stock units (RSUs) and common shares. She received a grant of 1,180 RSUs, each representing the right to receive one share of Semtech common stock. A separate RSU award of 5,321 units fully vested and was converted into 5,321 shares of common stock, leaving no units from that award outstanding.
Following these transactions, Li holds 6,050 Semtech common shares directly. In addition, a family trust, for which she serves as trustee and whose beneficiaries are herself and her immediate family, holds 5,735 common shares indirectly.
Semtech Corp director Saar Gillai reported routine equity compensation activity. Gillai received a grant of 1,180 Restricted Stock Units (RSUs), each representing the contingent right to one share of Semtech common stock. Separately, 5,321 RSUs were exercised and converted into 5,321 shares of common stock, with no shares sold in this filing. Following these transactions, Gillai directly holds 14,844 shares of common stock. The newly granted RSUs vest on the earlier of the one-year anniversary of the award or the day immediately before the next annual meeting of stockholders and are payable in shares.
Semtech director Rodolpho C. Cardenuto reported equity compensation activity. He received a grant of 1,180 restricted stock units (RSUs) on June 4, 2026, each representing the right to receive one share of Semtech common stock, with vesting tied to the next annual meeting cycle and settlement deferred under the Director Deferred Compensation Plan.
On June 3, 2026, 5,321 RSUs fully vested on the day immediately preceding the 2026 Annual Meeting of Stockholders and were exercised, converting into 5,321 shares of common stock. No shares were sold in these transactions, and his resulting direct holdings include 5,321 common shares and 1,180 RSUs.
SEMTECH CORP director Gregory Michael Fischer reported equity compensation and an option-like exercise, not any open-market trading. He received a grant of 1,180 Restricted Stock Units (RSUs), each representing the right to one share of Semtech common stock. Separately, 5,321 RSUs were exercised into 5,321 shares of common stock, fully settling that RSU award. Following these transactions, he directly holds 7,178 shares of Semtech common stock. Footnotes explain that RSU awards vest around the company’s annual meeting of stockholders and are payable in shares.
SEMTECH CORP director Paul V. Walsh Jr. reported routine equity compensation activity. He received a grant of 1,180 restricted stock units, each representing the right to receive one share of Semtech common stock. On a separate date, 5,321 restricted stock units were exercised and converted into 5,321 shares of common stock as they vested around the company’s 2026 Annual Meeting of Stockholders.
Following these transactions, Walsh directly held 28,600 shares of Semtech common stock. The filing shows only acquisitions and conversions related to stock awards, with no open-market purchases or sales.
LuPriore Paula reported acquisition or exercise transactions in this Form 4 filing.
SEMTECH CORP director Paula LuPriore received an equity award of 1,180 restricted stock units (RSUs). Each unit represents the right to receive one share of Semtech common stock. The RSUs vest on the earlier of one year after the grant or the day before the first annual stockholders’ meeting following the grant.
The award is payable in shares, and LuPriore has elected to defer settlement of these stock units under the Semtech Corporation Director Deferred Compensation Plan. This is a compensation-related, non‑market transaction rather than an open‑market stock purchase or sale.
Burvill Martin reported acquisition or exercise transactions in this Form 4 filing.
SEMTECH CORP director Martin Burvill received a grant of 1,180 restricted stock units. These units give him the right to receive an equal number of Semtech common shares at settlement, with no cash paid for the award.
The stock units vest on the earlier of the one-year anniversary of the award or the day immediately before the first annual stockholder meeting after the grant, and are payable in shares. Burvill has elected to defer settlement of these units under the Semtech Corporation Director Deferred Compensation Plan, making this a routine, compensation-related equity award rather than an open-market share purchase or sale.
SEMTECH CORP director Ye Jane Li reported an open-market sale of 5,285 shares of common stock. The sale occurred on May 28, 2026 at an average price of $166.8416 per share. After this transaction, she directly owns 729 Semtech shares.
The filing also shows 5,735 shares held indirectly through a family trust. A footnote explains that on February 3, 2026, 4,265 shares were moved from a grantor retained annuity trust to her living trust for no consideration, with remaining trust shares reported as indirectly owned.
Semtech Corp director Gregory Michael Fischer reported an open-market sale of company stock. On May 28, 2026, he sold 1,000 shares of Semtech common stock at a price of $164.685 per share. After this transaction, he directly owns 1,857 Semtech shares.
SEMTECH CORP director Paul V. Walsh Jr. reported an open-market sale of 500 shares of common stock on May 20, 2026 at $138.21 per share. The transaction was executed under a Rule 10b5-1 trading plan adopted on July 9, 2025. After this sale, he directly holds 23,279 shares of Semtech common stock.
SEMTECH CORP President and CEO Hong Q. Hou completed an open-market sale of 2,000 shares of Common Stock at $103.01 per share on May 1, 2026. After this transaction, he directly holds 71,228 shares. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on December 17, 2025, indicating it was scheduled in advance rather than timed discretionarily.
Semtech Corp director Paul V. Walsh Jr. reported an open-market sale of company stock. On April 22, 2026, he sold 500 shares of Semtech common stock at $105.93 per share. After this transaction, he directly owns 23,779 shares of Semtech common stock.
SEMTECH CORP President and CEO Dr. Hong Q. Hou sold 2,000 shares of Common Stock in an open-market transaction. The shares were sold at a price of $90.11 per share on April 10, 2026, pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on December 17, 2025.
Following this sale, Dr. Hou directly holds 73,228 shares of Semtech common stock, indicating he retains a substantial equity stake while executing a planned diversification transaction.
Semtech Corp director Martin Burvill reported an open-market sale of 2,500 shares of Semtech common stock. The shares were sold at a weighted average price of $88.9795 per share, with individual sale prices ranging from $88.9745 to $89.105. Following this transaction, Burvill directly owns 4,409 shares of Semtech common stock.
SEMTECH CORP Chief Quality Officer and CTO John Michael Wilson received a grant of 394 shares of Common Stock on April 6, 2026. The shares were acquired at a price of $0.00 per share as a grant or award and are held directly. Following this grant, Wilson directly owns 85,689 shares of Semtech common stock, making this a routine, compensation-related increase in his equity stake rather than an open-market purchase or sale.
Silberstein Asaf reported acquisition or exercise transactions in this Form 4 filing.
SEMTECH CORP EVP and COO Asaf Silberstein received a grant of 488 shares of Common Stock as compensation. The award on April 6, 2026 carried no cash purchase price per share. After this grant, Silberstein directly owns 106,165 shares of Semtech common stock, indicating this was a small, routine equity award relative to his overall holdings.
Lin Mark reported acquisition or exercise transactions in this Form 4 filing.
Semtech EVP and CFO Mark Lin received an equity grant of 450 shares of common stock. The shares were awarded on a non-cash basis at a stated price of $0.00 per share as part of his compensation.
After this grant, Lin directly holds 33,793 shares of Semtech common stock.
SEMTECH CORP President and CEO Hong Q. Hou received a grant of 1,067 shares of Common Stock on April 6, 2026, as a stock award with no cash price per share. Following this compensation-related acquisition, his directly held stake increased to 75,228 Common Stock shares.
Semtech Corp executive Jason Elliot Green received a stock grant reported on a Form 4. On April 6, 2026, he acquired 542 shares of Common Stock as a grant or award at no purchase price. After this compensation-related transaction, he directly holds 9,353 shares of Semtech stock.