Seagate Technology (STX): CEO sold ~$251K

~$251K

Approx. value · 1,004 sh @ $250.43

495K

Holds after · shares reported

Traded

Oct 1, 2025

Filed

Oct 3, 2025

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. Jul 29, 2025CongressDisclosed partial sale of STX — reported range $1,001 - $15,000
2. Jul 31, 2025Insider · 1 personInsiders: 6 sales (~$543K)
3. Aug 1, 2025Insider · 3 peopleInsiders: 8 sales (~$4.2M)
4. Aug 6, 2025InsiderDirector sold ~$376K of STX shares in the open market
5. Aug 11, 2025InsiderOfficer sold ~$261K of STX shares in the open market
6. Aug 14, 2025CongressDisclosed partial sale of STX — reported range $1,001 - $15,000
7. Sep 2, 2025Insider · 2 peopleInsiders: 9 sales (~$3.5M)
8. Sep 8, 2025CongressDisclosed purchase of STX — reported range $15,001 - $50,000
9. Sep 10, 2025InsiderOfficer sold ~$1.3M of STX shares in the open market
10. Sep 11, 2025InsiderOfficer sold ~$721K of STX shares in the open market
11. Sep 12, 2025Insider · 1 personInsiders: 5 sales (~$3.0M)
12. Sep 16, 2025InsiderOfficer sold ~$80K of STX shares in the open market
13. Oct 1, 2025 · this disclosureInsiderCEO sold ~$251K of STX shares in the open market

What came next

1. Oct 1, 2025Insider · 1 personInsiders: 20 sales (~$4.7M)
2. Oct 13, 2025InsiderOfficer sold ~$318K of STX shares in the open market
3. Oct 25, 2025Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote“Approval of the Amended and Restated Employee Stock Purchase Plan At the 2025 Annual General Meeting (the “ AGM ”) of Seagate Technology Holdings plc (the “ Company ”) held on October 25, 2025, the Company’s shareholders voted to approve the Amended and Restated Employee Stock Purchase Plan (the “ Amended ESPP ”).”
4. Oct 28, 2025Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
5. Oct 30, 2025Insider · Their largest sale since 2024Officer sold ~$1.93M of STX shares in the open market
6. Oct 31, 20255% stakeJPMORGAN CHASE & CO. reported a passive stake (13G) of 5.6%
7. Oct 31, 2025InsiderDirector sold ~$336K of STX shares in the open market
8. Nov 3, 2025Insider · 2 peopleInsiders: 14 sales (~$5.8M)
9. Nov 4, 2025Company filing · Form 8-K · Unregistered shares, Reg FDSold new shares without registering them, and shared information with investors (and 1 more item)
10. Nov 4, 20255% stakeJPMORGAN CHASE & CO. reported a passive stake (13G) of 4.0%
11. Nov 5, 2025InsiderOfficer sold ~$1.62M of STX shares in the open market
12. Nov 10, 2025Company filing · Form 8-K · Unregistered shares, Reg FDSold new shares without registering them, and shared information with investors (and 1 more item)
13. Nov 10, 2025InsiderDirector sold ~$1.47M of STX shares in the open market
14. Nov 11, 2025Insider · 2 peopleInsiders: 2 sales (~$609K)
15. Nov 12, 2025Insider · 1 personInsiders: 2 sales (~$757K)
16. Jan 27, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Seagate Technology

For Seagate Technology, OQRO holds 393 insider filings (SEC Form 4 or Form 144), 3 Congress trade reports and 49 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 STX page.

Other recent filings by William D Mosley, CEO

• SEC Form 4 at Seagate Technology (STX)Oct 3, 2026
• SEC Form 4 at Seagate Technology (STX)Oct 3, 2026
• SEC Form 4 at Seagate Technology (STX)Oct 3, 2026
• SEC Form 4 at Seagate Technology (STX)Oct 3, 2026
• SEC Form 4 at Seagate Technology (STX)Oct 3, 2026

The full history of William D Mosley, CEO is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Seagate Technology

• House Clerk periodic transaction reportOct 28, 2026
• SEC Form 4Oct 26, 2026
• SEC Form 144Oct 23, 2026
• House Clerk periodic transaction reportOct 12, 2026
• SEC Form 4Oct 3, 2026
• SEC Form 4Oct 3, 2026

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