Gianluca Romano - 20 Feb 2026 Form 4 Insider Report for Seagate Technology Holdings plc (STX)

Role
EVP & CFO
Signature
/s/ Louis J. Thorson, Attorney-in-Fact for Gianluca Romano
Issuer symbol
STX
Transactions as of
20 Feb 2026
Net transactions value
-$5,373,619
Form type
4
Filing time
23 Feb 2026, 17:20:44 UTC
Previous filing
12 Dec 2025
Next filing
11 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Romano Gianluca EVP & CFO SEAGATE TECHNOLOGY HOLDINGS PLC, 47488 KATO ROAD, FREMONT /s/ Louis J. Thorson, Attorney-in-Fact for Gianluca Romano 23 Feb 2026 0001764650

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STX Ordinary Shares Options Exercise $0 +11,807 +23% $0.000000 62,278 20 Feb 2026 Direct F1
transaction STX Ordinary Shares Tax liability $2,456,382 -5,975 -9.6% $411.11 56,303 20 Feb 2026 Direct
transaction STX Ordinary Shares Options Exercise $0 +14,043 +25% $0.000000 70,346 22 Feb 2026 Direct
transaction STX Ordinary Shares Tax liability $2,917,237 -7,096 -10% $411.11 63,250 22 Feb 2026 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 Performance-Based Restricted Share Units Options Exercise $0 -11,807 -100% $0.000000 0 20 Feb 2026 Ordinary Shares 11,807 $0.000000 Direct F2
transaction STX Restricted Share Unit Options Exercise $0 -14,043 -100% $0.000000 0 22 Feb 2026 Ordinary Shares 14,043 $0.000000 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 120 Ordinary Shares purchased by Reporting Person on January 31, 2026 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under the Securities Exchange Act of 1934.
F2 On January 24, 2026 the Compensation and People Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to the 11,807 Performance Share Units granted on February 20, 2024. The 11,807 Ordinary Shares vested on February 20, 2026.
F3 Consists of a grant of RSUs awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. Such RSUs vested as to one-quarter of the shares on February 22, 2023, and each one year anniversary thereafter.