Seagate CEO sells 18,138 shares at $849 each
Seagate Technology Holdings plc (STX) CEO William D. Mosley reported multiple equity transactions.
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Form Type
4
Rhea-AI Filing Summary
Seagate Technology Holdings plc (STX) CEO William D. Mosley reported multiple equity transactions. On August 21, 2026 he sold 18,138.5 Ordinary Shares in open-market or private transactions at $849.3548 per share. On August 20, 2026 he exercised Restricted Share Units into Ordinary Shares at no cost and received new RSU awards with multi-year vesting schedules, plus a grant of 31,856 NQ Stock Options at a $850.2400 exercise price expiring August 20, 2033.
Insider Trade Summary
Exercise and sale activity reported; no spread calculated
Exercise and Sale
13 txns
Insider
MOSLEY WILLIAM D
Role
CEO
Sold
18,138.5 shs ($15.41M)
Approx. gross sale proceeds
$15.41M
Approx. exercise cost
$0.00
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Ordinary Shares | 3,437.75 | $849.3548 | $2.92M |
| Sale | Ordinary Shares | 11,308 | $849.3548 | $9.60M |
| Sale | Ordinary Shares | 3,392.75 | $849.3548 | $2.88M |
| Exercise | Restricted Share Unit F1 | 6,404 | $0.00 | $0.00 |
| Exercise | Restricted Share Unit F2 | 6,320 | $0.00 | $0.00 |
| Exercise | Restricted Share Unit F2 | 21,065 | $0.00 | $0.00 |
| Grant/Award | Restricted Share Unit F3 | 5,309 | $0.00 | $0.00 |
| Grant/Award | Restricted Share Unit F4 | 5,280 | $0.00 | $0.00 |
| Grant/Award | Restricted Share Unit F4 | 1,584 | $0.00 | $0.00 |
| Grant/Award | NQ Stock Option F5 | 31,856 | $0.00 | $0.00 |
| Exercise | Ordinary Shares | 6,404 | $0.00 | $0.00 |
| Exercise | Ordinary Shares | 21,065 | $0.00 | $0.00 |
| Exercise | Ordinary Shares | 6,320 | $0.00 | $0.00 |
Holdings After Transaction:
Restricted Share Unit — 31,386 contracts (Direct);
NQ Stock Option — 31,856 contracts (Direct);
Ordinary Shares — 311,167.5 shares (Direct)
Footnotes (5)
- F1. Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan") subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter.
- F2. Consists of a grant of RSUs awarded to the Reporting Person under the Plan. 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026.
- F3. Consists of a grant of RSUs awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2027 and then in equal quarterly installments thereafter.
- F4. Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, August 20, 2027.
- F5. Consists of Options awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vest as to one-quarter of the shares on August 20, 2027 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years.
Key Figures
Ordinary Shares sold: 18,138.5 shares
Sale price per Ordinary Share: $849.3548 per share
RSU-related Ordinary Shares acquired: 33,789 shares
+5 more
8 metrics
Ordinary Shares sold
18,138.5 shares
Total Ordinary Shares sold by William D. Mosley on August 21, 2026
Sale price per Ordinary Share
$849.3548 per share
Price for Ordinary Share sales on August 21, 2026
RSU-related Ordinary Shares acquired
33,789 shares
Total Ordinary Shares from RSU exercises/conversions on August 20, 2026
NQ Stock Options granted
31,856 options
Nonqualified Stock Options granted on August 20, 2026
NQ Stock Option exercise price
$850.2400 per share
Exercise price of NQ Stock Options granted August 20, 2026
NQ Stock Option expiration date
August 20, 2033
Expiration date of the 31,856 NQ Stock Options granted
RSU grant 1 size
5,309 RSUs
Restricted Share Unit grant with four-year vesting from August 20, 2027
RSU grant 2 size
5,280 RSUs
Restricted Share Unit grant vesting 100% on August 20, 2027
Key Terms
Restricted Share Unit, NQ Stock Option, 2022 Equity Incentive Plan, vesting schedule, +1 more
5 terms
NQ Stock Option financial
"Consists of Options awarded to the Reporting Person under the Plan subject to a four-year vesting"
2022 Equity Incentive Plan financial
"awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan"
vesting schedule financial
"awarded to the Reporting Person under the Plan subject to a four-year vesting schedule"
A vesting schedule is a timeline that determines when someone gains full ownership of certain benefits, such as company stock or retirement contributions. Think of it like earning the right to own a gift gradually over time, rather than receiving it all at once. It matters to investors because it affects when they can fully access or sell these benefits, influencing their financial planning and decision-making.
exercise price financial
"Options vest as to one-quarter of the shares on August 20, 2027 and the remaining portion"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did STX CEO William D. Mosley report on this Form 4?
He reported sales of 18,138.5 Ordinary Shares on August 21, 2026, exercises of Restricted Share Units into Ordinary Shares on August 20, 2026, and new grants of RSUs and 31,856 NQ Stock Options with future vesting schedules and an exercise price of $850.2400.
What equity awards did STX grant to William D. Mosley on August 20, 2026?
He received multiple Restricted Share Unit grants and a grant of 31,856 NQ Stock Options with an exercise price of $850.2400 per share, expiring on August 20, 2033, all under Seagate’s equity incentive plan with multi-year vesting schedules.
What are the vesting terms of William D. Mosley’s new STX RSU and option awards?
Certain RSU grants and Options vest over four years, with one-quarter vesting on August 20, 2027 and the remainder vesting in regular installments thereafter, subject to his continuous employment, as disclosed in the award footnotes.
AI-generated analysis. How Rhea-AI works. Not financial advice.
