Semtech (SMTC)Westfield Capital Management Co LP reduced its stake -147K shares

1.13M

Shares reported · -147K vs prior quarter

0.60%

Disclosed portfolio weight

$183M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 12, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jun 10, 2026InsiderCFO sold ~$106K of SMTC shares in the open market
2. Jun 22, 2026InsiderOfficer sold ~$935K of SMTC shares in the open market
3. Jun 24, 2026InsiderDirector sold ~$82K of SMTC shares in the open market
4. Jun 29, 2026Insider · 1 personInsiders: 2 sales (~$1.5M)
5. Jun 30, 2026CongressDisclosed partial sale of SMTC — reported range $1,001 - $15,000
6. Jun 30, 2026InsiderDirector sold ~$234K of SMTC shares in the open market
7. Jul 1, 2026InsiderCFO sold ~$146K of SMTC shares in the open market
8. Jul 6, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
9. Jul 7, 2026Insider · 1 personInsiders: 2 sales (~$294K)
10. Jul 8, 2026Insider · 1 personInsiders: 6 sales (~$1.1M)
11. Jul 10, 2026InsiderCEO sold ~$266K of SMTC shares in the open market
12. Jul 14, 2026InsiderOfficer sold ~$435K of SMTC shares in the open market
13. Jul 16, 2026CongressDisclosed partial sale of SMTC — reported range $1,001 - $15,000
14. Jul 21, 2026CongressDisclosed partial sale of SMTC — reported range $1,001 - $15,000
15. Jul 22, 2026InsiderDirector sold ~$67K of SMTC shares in the open market
16. Aug 7, 2026InsiderCEO sold ~$280K of SMTC shares in the open market

What came next

1. Aug 17, 2026InsiderOfficer sold ~$750K of SMTC shares in the open market
2. Aug 19, 2026InsiderDirector sold ~$68K of SMTC shares in the open market
3. Aug 25, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
4. Sep 4, 2026Insider · 2 peopleInsiders: 2 sales (~$495K)
5. Sep 10, 2026InsiderCFO sold ~$109K of SMTC shares in the open market
6. Sep 16, 2026InsiderDirector sold ~$878K of SMTC shares in the open market
7. Sep 23, 2026InsiderDirector sold ~$86K of SMTC shares in the open market
8. Oct 1, 2026InsiderCFO sold ~$173K of SMTC shares in the open market
9. Oct 2, 2026InsiderCEO sold ~$382K of SMTC shares in the open market
10. Oct 7, 2026InsiderOfficer sold ~$527K of SMTC shares in the open market

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Semtech

For Semtech, OQRO holds 16 insider filings (SEC Form 4 or Form 144), 2 Congress trade reports and 9 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its SMTC page.

How this filing works

• SEC Form 13F

Other disclosures at Semtech

• SEC Form 4Oct 9, 2026
• SEC Form 144Oct 7, 2026
• SEC Form 4Oct 6, 2026
• SEC Form 4Oct 6, 2026
• SEC Form 144Oct 2, 2026
• SEC Form 4Sep 26, 2026

Everything OQRO holds on this company is on its SMTC page.