SMTC · Semtech Corp

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hou on December 17, 2025.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $129.26 to $130. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $128.1975 to $129.18. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $126.11 to $126.96. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $127.1925 to $128.0775. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $124.9725 to $125.885. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Silberstein on April 8, 2026.

The price represents the weighted average of these sales. The prices ranged from $123.84 to $124.79. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Green on April 6, 2026.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Green on April 6, 2026.

The reporting person transferred shares of Semtech common stock to The Silberstein Family Trust DTD 07/11/2016 ("Family Trust") of which the reporting person is a trustee. The reporting person and members of his immediate family are the sole beneficiaries of the Family Trust.

The reporting person transferred shares of Semtech common stock to The Silberstein Family Trust DTD 07/11/2016 ("Family Trust") of which the reporting person is a trustee. The reporting person and members of his immediate family are the sole beneficiaries of the Family Trust.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on October 2, 2024 and the remainder of this grant vests in eight quarterly installments beginning on January 2, 2025.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lin on June 23, 2025.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on July 1, 2025 and the remainder of this grant vests in eight quarterly installments beginning on October 1, 2025.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Fischer on March 30, 2026.

The price represents the weighted average of these sales. The prices ranged from $151.83 to $152.825. Price and share details are available upon request.

The price represents the weighted average of these sales. The prices ranged from $152.840 to $153.050. Price and share details are available upon request.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lin on June 23, 2025.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

One third of this grant vested on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hou on December 17, 2025.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares. The reporting person has elected to defer settlement of the stock units pursuant to the Semtech Corporation Director Deferred Compensation Plan.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares. The reporting person has elected to defer settlement of the stock units pursuant to the Semtech Corporation Director Deferred Compensation Plan.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares. The reporting person has elected to defer settlement of the stock units pursuant to the Semtech Corporation Director Deferred Compensation Plan.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares. The reporting person has elected to defer settlement of the stock units pursuant to the Semtech Corporation Director Deferred Compensation Plan.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares.

Each stock unit represents the contingent right to receive one share of Semtech common stock.

This RSU award fully vested on the day immediately preceding the 2026 Annual Meeting of Stockholders.