Comparable stake leader
BlackRock, Inc.
SEC ownership of SEMTECH CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000088941.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- SMTC on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000088941
- Issuer location
- Camarillo, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SEMTECH CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
AMERIPRISE FINANCIAL INC
8.3%
VANGUARD PORTFOLIO MANAGEMENT LLC
7.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
Capital Research Global Investors
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$1,093,546,418
14,222,219 shares
|
— | 31 Mar 2026 |
| AMERIPRISE FINANCIAL INC |
13F
13D/G
Company
|
8.3%
from 13D/G
|
$572,649,548
7,450,380 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
7.5%
|
$538,808,213
7,007,520 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$373,131,331
4,852,794 shares
|
$0 | 31 Mar 2026 |
| Capital Research Global Investors |
13D/G
13F
Company
|
4.9%
|
$350,266,589
4,502,720 shares
|
-$14,698,887 | 31 Dec 2025 |
| ALLIANCEBERNSTEIN L.P. |
13F
13D/G
Company
|
3.9%
from 13D/G
|
$174,373,458
2,366,311 shares
|
— | 31 Mar 2026 |
| Madhusudhan Rayabhari |
3/4/5
SVP and GM
|
0.07%
|
$2,342,926
61,478 shares
|
— | 04 Jun 2025 |
| William Ross Gray |
3/4/5
SVP and GM
|
0.02%
|
$609,264
15,987 shares
|
— | 04 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$13,241,387.
Buys
$0
Insiders: 0
Sells
$13,241,387
Insiders: 10
Net
-$13,241,387
Shares: -134,865
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 134,865
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 36,543 | $0 | $5,398,532 | -$5,398,532 |
| 3-6 | 0 | 58,418 | $0 | $4,920,834 | -$4,920,834 |
| 6-9 | 0 | 31,933 | $0 | $2,425,599 | -$2,425,599 |
| 9-12 | 0 | 7,971 | $0 | $496,422 | -$496,422 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 33 reporting-owner rows connected to SEMTECH CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
33
Largest Forms 3/4/5 holder
Asaf Silberstein
Net 12M change
-$13,241,386
Latest report
01 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Asaf Silberstein | EVP and COO | $17,511,600 | -$3,497,664 | -17% | Mixed | 01 Jul 2026 |
| John Michael Wilson | Chief Quality Officer and CTO | $14,068,467 | -$1,310,600 | -8.5% | Mixed | 22 Jun 2026 |
| Hong Q. Hou | President and CEO, Director | $11,748,489 | -$2,916,616 | -20% | Mixed | 01 Jul 2026 |
| Mohan Maheswaran | President and CEO, Director | $7,779,775 | Mixed | 14 Jun 2023 | ||
| Mark Lin | EVP and CFO | $5,983,062 | -$2,315,250 | -28% | Mixed | 01 Jul 2026 |
| Paul V Walsh Jr. | Director | $4,636,219 | -$428,710 | -8.5% | Filing P/S | 24 Jun 2026 |
| Rockell N. Hankin | Director | $4,561,310 | Mixed | 01 Jul 2024 | ||
| Paul H. Pickle | President and CEO, Director | $2,528,179 | Mixed | 25 May 2024 | ||
| Emeka Chukwu | EVP and CFO | $2,445,206 | Mixed | 08 Mar 2023 | ||
| Mark P. Russell | Svp | $2,347,554 | Mixed | 05 Mar 2025 | ||
| Madhusudhan Rayabhari | SVP and GM | $2,342,926 | Mixed | 04 Jun 2025 | ||
| Saar Gillai | Director | $1,141,355 | -$270,945 | -19% | Mixed | 03 Jun 2026 |
| Ye Jane Li | Director | $968,745 | -$881,758 | -48% | Mixed | 03 Jun 2026 |
| Gregory Michael Fischer | Director | $887,130 | -$564,765 | -39% | Filing P/S | 30 Jun 2026 |
| Jason Elliot Green | EVP and CCO | $836,178 | -$612,992 | -42% | Mixed | 10 Jun 2026 |
| Julie Garcia Ruehl | Director | $726,926 | Mixed | 03 Jun 2026 | ||
| Bruce C. Edwards | Director | $695,823 | Mixed | 07 Jun 2023 | ||
| Gary Beauchamp | EVP and GM | $646,620 | Mixed | 08 Mar 2023 | ||
| Imran Sherazi | SVP and GM | $627,901 | Mixed | 04 Jun 2025 | ||
| William Ross Gray | SVP and GM | $609,264 | Mixed | 04 Jun 2025 |
Recent insider transactions for SEMTECH CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Mark Lin | SMTC | Common Stock | Sale | -2.7% | $145,893 | $150.40 | -970 | 34,896 | 01 Jul 2026 | Direct |
| Mark Lin | SMTC | Common Stock | Tax liability | -4.17% | -1,561 | 35,866 | 01 Jul 2026 | Direct | ||
| Mark Lin | SMTC | Common Stock | Options Exercise | 9.23% | 3,164 | 37,427 | 01 Jul 2026 | Direct | ||
| Mark Lin | SMTC | Restricted Stock Unit | Options Exercise | -50% | -3,164 | 3,165 | 01 Jul 2026 | Direct | ||
| Asaf Silberstein | SMTC | Common Stock | Gift | 58.4% | 38,866 | 105,362 | 01 Jul 2026 | by Family Trust | ||
| Asaf Silberstein | SMTC | Common Stock | Gift | -100% | -38,866 | 0 | 01 Jul 2026 | Direct | ||
| Hong Q. Hou | SMTC | Common Stock | Tax liability | -4.71% | -3,300 | 66,799 | 01 Jul 2026 | Direct | ||
| Hong Q. Hou | SMTC | Common Stock | Options Exercise | 10.2% | 6,484 | 70,099 | 01 Jul 2026 | Direct | ||
| Hong Q. Hou | SMTC | Restricted Stock Unit | Options Exercise | -20% | -6,484 | 25,933 | 01 Jul 2026 | Direct | ||
| Gregory Michael Fischer | SMTC | Common Stock | Sale | -20.9% | $234,360 | $156.24 | -1,500 | 5,678 | 30 Jun 2026 | Direct |
| Hong Q. Hou | SMTC | Common Stock | Sale | -13.1% | $1,465,408 | $152.57 | -9,605 | 63,615 | 29 Jun 2026 | Direct |
| Paul V Walsh Jr. | SMTC | Common Stock | Sale | -1.75% | $82,495 | $164.99 | -500 | 28,100 | 24 Jun 2026 | Direct |
| John Michael Wilson | SMTC | Common Stock | Sale | -6.37% | $935,000 | $170.00 | -5,500 | 80,876 | 22 Jun 2026 | Direct |
| John Michael Wilson | SMTC | Common Stock | Tax liability | -0.82% | -713 | 86,376 | 10 Jun 2026 | Direct | ||
| John Michael Wilson | SMTC | Common Stock | Options Exercise | 1.63% | 1,400 | 87,089 | 10 Jun 2026 | Direct | ||
| John Michael Wilson | SMTC | Restricted Stock Unit | Options Exercise | -12.5% | -1,400 | 9,800 | 10 Jun 2026 | Direct | ||
| Asaf Silberstein | SMTC | Common Stock | Tax liability | -1.16% | -1,241 | 105,362 | 10 Jun 2026 | Direct | ||
| Asaf Silberstein | SMTC | Common Stock | Options Exercise | 2.34% | 2,438 | 106,603 | 10 Jun 2026 | Direct | ||
| Asaf Silberstein | SMTC | Restricted Stock Unit | Options Exercise | -12.5% | -2,438 | 17,072 | 10 Jun 2026 | Direct | ||
| Hong Q. Hou | SMTC | Common Stock | Tax liability | -5.35% | -4,137 | 73,220 | 10 Jun 2026 | Direct | ||
| Hong Q. Hou | SMTC | Common Stock | Options Exercise | 11.7% | 8,129 | 77,357 | 10 Jun 2026 | Direct | ||
| Hong Q. Hou | SMTC | Restricted Stock Unit | Options Exercise | -12.5% | -8,129 | 56,905 | 10 Jun 2026 | Direct | ||
| Jason Elliot Green | SMTC | Common Stock | Tax liability | -8.33% | -988 | 10,875 | 10 Jun 2026 | Direct | ||
| Jason Elliot Green | SMTC | Common Stock | Options Exercise | 26.8% | 2,510 | 11,863 | 10 Jun 2026 | Direct | ||
| Jason Elliot Green | SMTC | Restricted Stock Unit | Options Exercise | -12.5% | -2,510 | 17,576 | 10 Jun 2026 | Direct | ||
| Mark Lin | SMTC | Common Stock | Sale | -1.95% | $105,974 | $155.16 | -683 | 34,263 | 10 Jun 2026 | Direct |
| Mark Lin | SMTC | Common Stock | Tax liability | -3.31% | -1,196 | 34,946 | 10 Jun 2026 | Direct | ||
| Mark Lin | SMTC | Common Stock | Options Exercise | 6.95% | 2,349 | 36,142 | 10 Jun 2026 | Direct | ||
| Mark Lin | SMTC | Restricted Stock Unit | Options Exercise | -12.5% | -2,349 | 16,439 | 10 Jun 2026 | Direct | ||
| Hong Q. Hou | SMTC | Common Stock | Sale | -2.81% | $324,200 | $162.10 | -2,000 | 69,228 | 05 Jun 2026 | Direct |
| Julie Garcia Ruehl | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Ye Jane Li | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Saar Gillai | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Rodolpho C. Cardenuto | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Gregory Michael Fischer | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Paul V Walsh Jr. | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Paula LuPriore | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Martin Burvill | SMTC | Restricted Stock Unit | Award | 1,180 | 1,180 | 04 Jun 2026 | Direct | |||
| Asaf Silberstein | SMTC | Common Stock | Sale | -1.88% | $328,000 | $164.00 | -2,000 | 104,165 | 03 Jun 2026 | Direct |
| Julie Garcia Ruehl | SMTC | Common Stock | Options Exercise | 44.5% | 2,661 | 8,640 | 03 Jun 2026 | Direct | ||
| Julie Garcia Ruehl | SMTC | Restricted Stock Unit | Options Exercise | -50% | -2,661 | 2,660 | 03 Jun 2026 | Direct | ||
| Ye Jane Li | SMTC | Common Stock | Options Exercise | 729.9% | 5,321 | 6,050 | 03 Jun 2026 | Direct | ||
| Ye Jane Li | SMTC | Restricted Stock Unit | Options Exercise | -100% | -5,321 | 0 | 03 Jun 2026 | Direct | ||
| Saar Gillai | SMTC | Common Stock | Options Exercise | 55.9% | 5,321 | 14,844 | 03 Jun 2026 | Direct | ||
| Saar Gillai | SMTC | Restricted Stock Unit | Options Exercise | -100% | -5,321 | 0 | 03 Jun 2026 | Direct | ||
| Rodolpho C. Cardenuto | SMTC | Common Stock | Options Exercise | 5,321 | 5,321 | 03 Jun 2026 | Direct | |||
| Rodolpho C. Cardenuto | SMTC | Restricted Stock Unit | Options Exercise | -100% | -5,321 | 0 | 03 Jun 2026 | Direct | ||
| Gregory Michael Fischer | SMTC | Common Stock | Options Exercise | 286.5% | 5,321 | 7,178 | 03 Jun 2026 | Direct | ||
| Gregory Michael Fischer | SMTC | Restricted Stock Unit | Options Exercise | -100% | -5,321 | 0 | 03 Jun 2026 | Direct | ||
| Paul V Walsh Jr. | SMTC | Common Stock | Options Exercise | 22.9% | 5,321 | 28,600 | 03 Jun 2026 | Direct |
* marks a reported price that did not pass the local price check.