Seagate CEO sells 16,220 shares, exercises options
Seagate Technology Holdings plc CEO William D. Mosley reported a combination of open-market sales and an option exercise involving the company’s Ordinary Shares.
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Form Type
4
Rhea-AI Filing Summary
Seagate Technology Holdings plc CEO William D. Mosley reported a combination of open-market sales and an option exercise involving the company’s Ordinary Shares. On June 1, 2026, he sold a total of 16,220 Ordinary Shares in multiple transactions at prices ranging from $884.23 to $915.95 per share.
On the same date, he exercised stock options to acquire 14,000 Ordinary Shares at an exercise price of $46.23 per share under the issuer’s 2012 Equity Incentive Plan. Following these transactions, Mosley directly owns 337,371 Ordinary Shares. All reported trades were effected pursuant to a Rule 10b5-1 trading plan adopted on February 18, 2026.
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
31 txns
Insider
MOSLEY WILLIAM D
Role
CEO
Sold
16,220 shs ($14.60M)
Approx. gross sale proceeds
$14.60M
Approx. exercise cost
$647K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | NQ Options | 14,000 | $0.00 | $0.00 |
| Exercise | Ordinary Shares | 14,000 | $46.23 | $647K |
| Sale | Ordinary Shares | 600 | $884.6243 | $531K |
| Sale | Ordinary Shares | 360 | $885.6744 | $319K |
| Sale | Ordinary Shares | 360 | $886.7233 | $319K |
| Sale | Ordinary Shares | 240 | $887.715 | $213K |
| Sale | Ordinary Shares | 163 | $888.8881 | $145K |
| Sale | Ordinary Shares | 640 | $889.9414 | $570K |
| Sale | Ordinary Shares | 1,160 | $890.9849 | $1.03M |
| Sale | Ordinary Shares | 760 | $892.0601 | $678K |
| Sale | Ordinary Shares | 208 | $893.0004 | $186K |
| Sale | Ordinary Shares | 480 | $894.1951 | $429K |
| Sale | Ordinary Shares | 481 | $895.4505 | $431K |
| Sale | Ordinary Shares | 320 | $896.4263 | $287K |
| Sale | Ordinary Shares | 280 | $897.4286 | $251K |
| Sale | Ordinary Shares | 813 | $898.4091 | $730K |
| Sale | Ordinary Shares | 160 | $899.2725 | $144K |
| Sale | Ordinary Shares | 320 | $900.5425 | $288K |
| Sale | Ordinary Shares | 860 | $901.5588 | $775K |
| Sale | Ordinary Shares | 839 | $902.6173 | $757K |
| Sale | Ordinary Shares | 779 | $903.7842 | $704K |
| Sale | Ordinary Shares | 879 | $904.7047 | $795K |
| Sale | Ordinary Shares | 740 | $905.7608 | $670K |
| Sale | Ordinary Shares | 1,285 | $906.788 | $1.17M |
| Sale | Ordinary Shares | 760 | $907.7538 | $690K |
| Sale | Ordinary Shares | 853 | $909.1785 | $776K |
| Sale | Ordinary Shares | 600 | $910.1473 | $546K |
| Sale | Ordinary Shares | 480 | $911.0333 | $437K |
| Sale | Ordinary Shares | 320 | $912.2225 | $292K |
| Sale | Ordinary Shares | 280 | $914.6057 | $256K |
| Sale | Ordinary Shares | 200 | $915.518 | $183K |
Holdings After Transaction:
NQ Options — 139,100 contracts (Direct);
Ordinary Shares — 337,371 shares (Direct)
Footnotes (31)
- F1. All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.
- F2. These Ordinary Shares were sold in multiple trades at prices ranging from $884.23 to $885.22. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F3. These Ordinary Shares were sold in multiple trades at prices ranging from $885.23 to $886.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F4. These Ordinary Shares were sold in multiple trades at prices ranging from $886.37 to $887.03. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F5. These Ordinary Shares were sold in multiple trades at prices ranging from $887.37 to $888.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F6. These Ordinary Shares were sold in multiple trades at prices ranging from $888.42 to $889.34. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F7. These Ordinary Shares were sold in multiple trades at prices ranging from $889.50 to $890.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F8. These Ordinary Shares were sold in multiple trades at prices ranging from $890.53 to $891.50. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F9. These Ordinary Shares were sold in multiple trades at prices ranging from $891.71 to $892.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F10. These Ordinary Shares were sold in multiple trades at prices ranging from $892.71 to $893.17. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F11. These Ordinary Shares were sold in multiple trades at prices ranging from $893.78 to $894.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F12. These Ordinary Shares were sold in multiple trades at prices ranging from $894.83 to $895.80. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F13. These Ordinary Shares were sold in multiple trades at prices ranging from $895.92 to $896.72. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F14. These Ordinary Shares were sold in multiple trades at prices ranging from $896.93 to $897.85. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F15. These Ordinary Shares were sold in multiple trades at prices ranging from $898.01 to $899.00 The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F16. These Ordinary Shares were sold in multiple trades at prices ranging from $899.03 to $899.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F17. These Ordinary Shares were sold in multiple trades at prices ranging from $900.11 to $900.97. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F18. These Ordinary Shares were sold in multiple trades at prices ranging from $901.23 to $902.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F19. These Ordinary Shares were sold in multiple trades at prices ranging from $902.26 to $903.20. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F20. These Ordinary Shares were sold in multiple trades at prices ranging from $903.27 to $904.14. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F21. These Ordinary Shares were sold in multiple trades at prices ranging from $904.29 to $905.24. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F22. These Ordinary Shares were sold in multiple trades at prices ranging from $905.32 to $906.31. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F23. These Ordinary Shares were sold in multiple trades at prices ranging from $906.32 to $907.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F24. These Ordinary Shares were sold in multiple trades at prices ranging from $907.35 to $908.31. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F25. These Ordinary Shares were sold in multiple trades at prices ranging from $908.50 to $909.47. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F26. These Ordinary Shares were sold in multiple trades at prices ranging from $909.68 to $910.41. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F27. These Ordinary Shares were sold in multiple trades at prices ranging from $910.68 to $911.40. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F28. These Ordinary Shares were sold in multiple trades at prices ranging from $911.89 to $912.73. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F29. These Ordinary Shares were sold in multiple trades at prices ranging from $914.14 to $914.78. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F30. These Ordinary Shares were sold in multiple trades at prices ranging from $915.18 to $915.95. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
- F31. Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four year vesting schedule. Subject to continuous employment, one quarter of the option shares vested on September 9, 2021. The remaining option shares vest in equal monthly installments over the 36 months following September 9, 2021.
Key Figures
Shares sold: 16,220 shares
Shares exercised: 14,000 shares
Exercise price: $46.23 per share
+4 more
7 metrics
Shares sold
16,220 shares
Open-market sales of Ordinary Shares on June 1, 2026
Shares exercised
14,000 shares
Options exercised into Ordinary Shares on June 1, 2026
Exercise price
$46.23 per share
Option exercise price for 14,000 Ordinary Shares
Post-transaction holdings
353,591 shares
Ordinary Shares directly owned after transactions
Sale price range
$884.23–$915.95 per share
Footnoted price bands for multiple Ordinary Share sales
Option expiration
September 9, 2027
Expiration date for options on 14,000 shares
Derivative holdings after exercise
139,100 option shares
Total NQ Options following 14,000-share exercise
Key Terms
Rule 10b5-1 trading plan, weighted average sale price, Exercise or conversion of derivative security, Equity Incentive Plan, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average sale price financial
"The price reported above reflects the weighted average sale price"
Exercise or conversion of derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
Equity Incentive Plan financial
"Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four year vesting schedule"
An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.
NQ Options financial
""security_title": "NQ Options""
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Seagate (STX) CEO William D. Mosley report in this Form 4 filing?
William D. Mosley reported selling 16,220 Ordinary Shares of Seagate and exercising options for 14,000 shares. These transactions occurred on June 1, 2026 and were executed under a pre-arranged Rule 10b5-1 trading plan adopted on February 18, 2026.
What options did Seagate (STX) CEO William D. Mosley exercise in this filing?
Mosley exercised options covering 14,000 Ordinary Shares at an exercise price of $46.23 per share, linked to NQ Options expiring on September 9, 2027. These options were granted under Seagate’s 2012 Equity Incentive Plan with a four-year vesting schedule.
What does the transaction summary show about net buying or selling by Seagate’s CEO?
The transaction summary shows 29 sale transactions totaling 16,220 shares sold and 1 option exercise for 14,000 shares. Net buy/sell shares are reported as -16,220 with a net-sell direction, reflecting overall share dispositions despite the option exercise.
AI-generated analysis. How Rhea-AI works. Not financial advice.
