Asaf Silberstein

Asaf Silberstein: EVP and COO at Semtech. What Asaf Silberstein holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

Semtech (SMTC)

Asaf Silberstein holds 90,060 Semtech shares (0.10% of the company), worth about $15.6M at the last price, according to the Form 4 of Sep 10, 2026.

• Shares held: 88,862 (0.10%), $15.4M — Held through trusts (by Family Trust).
• Shares held: 1,198 (0.00%), $207,505.58 — Held in their own name.
• Share units: 14,633 (0.02%), $2.5M — Semtech promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.

Declarations

• Semtech (SMTC) — Form 4 of Sep 10, 2026 (EVP and COO): option exercise or conversion of 2,439; shares withheld for tax of 1,241 at $163.94; 90,060 shares after 0001514954-26-000033
• Semtech (SMTC) — Form 4 of Aug 17, 2026 (EVP and COO): open-market sale of 5,000 at $150.00; 88,862 shares after 0001514954-26-000031
• Semtech (SMTC) — Form 4 of Jul 14, 2026 (EVP and COO): open-market sale of 3,000 at $145.04; 93,862 shares after 0001514954-26-000029
• Semtech (SMTC) — Form 4 of Jul 8, 2026 (EVP and COO): open-market sale of 437 at $124.19; open-market sale of 2,448 at $125.18; 96,862 shares after 0001514954-26-000027
• Semtech (SMTC) — Form 4 of Jul 1, 2026 (EVP and COO): gift of 38,866; gift of 38,866; 105,362 shares after 0001514954-26-000025
• Semtech (SMTC) — Form 4 of Jun 10, 2026 (EVP and COO): option exercise or conversion of 2,438; shares withheld for tax of 1,241 at $157.52; 105,362 shares after 0001514954-26-000023
• Semtech (SMTC) — Form 4 of Jun 3, 2026 (EVP and COO): open-market sale of 2,000 at $164.00; 104,165 shares after 0001514954-26-000021
• Semtech (SMTC) — Form 4 of Apr 6, 2026 (EVP and COO): grant or award of 488; 106,165 shares after 0001514954-26-000018
• Semtech (SMTC) — Form 4 of Mar 23, 2026 (EVP and COO): grant or award of 9,755; shares withheld for tax of 4,964 at $76.52; 105,677 shares after 0001514954-26-000016
• Semtech (SMTC) — Form 4 of Mar 10, 2026 (EVP and COO): option exercise or conversion of 9,755; shares withheld for tax of 4,964 at $85.14; 94,313 shares after 0001514954-26-000013
• Semtech (SMTC) — Form 4 of Mar 7, 2026 (EVP and COO): option exercise or conversion of 12,137; shares withheld for tax of 6,176 at $82.02; 84,645 shares after 0001514954-26-000011
• Semtech (SMTC) — Form 4 of Mar 5, 2026 (EVP and COO): option exercise or conversion of 17,773; shares withheld for tax of 7,585 at $89.75; 78,684 shares after 0001514954-26-000008
• Semtech (SMTC) — Form 4 of Feb 9, 2026 (EVP and COO): open-market sale of 10,000 at $92.00; 68,496 shares after 0001514954-26-000006
• Semtech (SMTC) — Form 4 of Feb 2, 2026 (EVP and COO): open-market sale of 10,000 at $88.00; 78,496 shares after 0001514954-26-000004
• Semtech (SMTC) — Form 4 of Jan 22, 2026 (EVP and COO): open-market sale of 5,000 at $83.00; 88,496 shares after 0001514954-26-000002

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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