Ban Seng Teh - 11 Dec 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 Dec 2025
Net transactions value
-$501,613
Form type
4
Filing time
12 Dec 2025, 16:17:48 UTC
Previous filing
11 Dec 2025
Next filing
14 Jan 2026
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 12 Dec 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 +7.4% $0.000000 14,292 11 Dec 2025 Direct
transaction STX Ordinary Shares Options Exercise $36,618 +532 +3.7% $68.83 14,824 11 Dec 2025 Direct F1
transaction STX Ordinary Shares Options Exercise $56,528 +879 +5.9% $64.31 15,703 11 Dec 2025 Direct
transaction STX Ordinary Shares Sale $594,759 -2,010 -13% $295.90 13,693 11 Dec 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 -12% $0.000000 6,923 11 Dec 2025 Ordinary Shares 989 $0.000000 Direct F2
transaction STX NQ Options Options Exercise $0 -532 -10% $0.000000 4,793 11 Dec 2025 Ordinary Shares 532 $68.83 Direct F3
transaction STX NQ Options Options Exercise $0 -879 -4.5% $0.000000 18,454 11 Dec 2025 Ordinary Shares 879 $64.31 Direct F4
* 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 The option exercise and 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 unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan ("the 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. 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. 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.