Ban Seng Teh - 11 Sep 2025 Form 4 Insider Report for Seagate Technology Holdings plc (STX)

Role
EVP & Chief Commercial Officer
Signature
/s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh
Issuer symbol
STX
Transactions as of
11 Sep 2025
Net transactions value
-$600,843
Form type
4
Filing time
15 Sep 2025, 18:10:36 UTC
Previous filing
11 Sep 2025
Next filing
15 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Teh Ban Seng EVP & Chief Commercial Officer SEAGATE TECHNOLOGY HOLDINGS PLC, 47488 KATO ROAD, FREMONT /s/ Louis J. Thorson, Attorney-in-Fact for Ban Seng Teh 15 Sep 2025 0001801425

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STX Ordinary Shares Options Exercise $0 +989 +19% $0.000000 6,179 11 Sep 2025 Direct
transaction STX Ordinary Shares Options Exercise $36,686 +533 +8.6% $68.83 6,712 11 Sep 2025 Direct F1
transaction STX Ordinary Shares Options Exercise $27,337 +313 +4.7% $87.34 7,025 11 Sep 2025 Direct
transaction STX Ordinary Shares Options Exercise $56,528 +879 +13% $64.31 7,904 11 Sep 2025 Direct
transaction STX Ordinary Shares Sale $721,396 -3,732 -47% $193.30 4,172 11 Sep 2025 Direct
transaction STX Ordinary Shares Options Exercise $0 +13,869 +332% $0.000000 18,041 14 Sep 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction STX Restricted Share Unit Options Exercise $0 -989 -11% $0.000000 7,912 11 Sep 2025 Ordinary Shares 989 $0.000000 Direct F2
transaction STX NQ Options Options Exercise $0 -533 -7.7% $0.000000 6,390 11 Sep 2025 Ordinary Shares 533 $68.83 Direct F3
transaction STX NQ Options Options Exercise $0 -313 -100% $0.000000 0 11 Sep 2025 Ordinary Shares 313 $87.34 Direct F4
transaction STX NQ Options Options Exercise $0 -879 -4% $0.000000 21,090 11 Sep 2025 Ordinary Shares 879 $64.31 Direct F5
transaction STX Performance-Based Restricted Share Units Award $0 +13,869 $0.000000 13,869 14 Sep 2025 Ordinary Shares 13,869 $0.000000 Direct F6
transaction STX Performance-Based Restricted Share Units Options Exercise $0 -13,869 -100% $0.000000 0 14 Sep 2025 Ordinary Shares 13,869 $0.000000 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 All option exercises and the sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 31, 2024.
F2 Consists of a grant of restricted share units awarded to the reporting person under the Seagate Technology plc 2022 Equity Incentive Plan. Subject to the Reporting Person's continuous employment, one-quarter vested starting on September 11, 2024 and then in equal quarterly installments over the following three years for a total vesting period of four years.
F3 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023.
F4 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one quarter of the options vested on September 9, 2022 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.
F5 Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the options vested on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024.
F6 On September 14, 2025, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 13,869 of the 15,970 Performance Share Units granted on September 9, 2022. The 13,869 Ordinary Shares vested on September 14, 2025.