0001418812-23-000046.txt : 20230906 0001418812-23-000046.hdr.sgml : 20230906 20230906190318 ACCESSION NUMBER: 0001418812-23-000046 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230906 DATE AS OF CHANGE: 20230906 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Seagate Technology Holdings plc CENTRAL INDEX KEY: 0001137789 STANDARD INDUSTRIAL CLASSIFICATION: COMPUTER STORAGE DEVICES [3572] IRS NUMBER: 981597419 FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-31560 FILM NUMBER: 231240609 BUSINESS ADDRESS: STREET 1: 38/39 FITZWILLIAM SQUARE CITY: DUBLIN 2 STATE: L2 ZIP: D02 NX53 BUSINESS PHONE: 353-1234-3136 MAIL ADDRESS: STREET 1: 38/39 FITZWILLIAM SQUARE CITY: DUBLIN 2 STATE: L2 ZIP: D02 NX53 FORMER COMPANY: FORMER CONFORMED NAME: Seagate Technology plc DATE OF NAME CHANGE: 20100706 FORMER COMPANY: FORMER CONFORMED NAME: Seagate Technology DATE OF NAME CHANGE: 20090330 FORMER COMPANY: FORMER CONFORMED NAME: SEAGATE TECHNOLOGY DATE OF NAME CHANGE: 20021212 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: ValueAct Capital Master Fund, L.P. CENTRAL INDEX KEY: 0001464912 IRS NUMBER: 980440869 STATE OF INCORPORATION: D8 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 BUSINESS ADDRESS: STREET 1: ONE LETTERMAN DRIVE STREET 2: BUILDING D, 4TH FLOOR CITY: SAN FRANCISCO STATE: CA ZIP: 94129 BUSINESS PHONE: 415-362-3700 MAIL ADDRESS: STREET 1: ONE LETTERMAN DRIVE STREET 2: BUILDING D, 4TH FLOOR CITY: SAN FRANCISCO STATE: CA ZIP: 94129 144 1 primary_doc.xml 144 0001464912 XXXXXXXX LIVE 0001137789 Seagate Technology Holdings plc 001-31560 38/39 FITZWILLIAM SQUARE DUBLIN 2 L2 D02 NX53 353-1234-3136 ValueAct Capital Master Fund, L.P. 6.5% Ordinary Shares J.P. Morgan Securities LLC

383 Madison Avenue New York NY 10179

5750000 407617500.00 207393242 09/06/2023 NASDAQ Ordinary Shares 05/17/2017 Open Market Sale N/A N 26255 05/19/2017 Regular way settlement Ordinary Shares 05/18/2017 Open Market Sale N/A N 100000 05/22/2017 Regular way settlement Ordinary Shares 05/02/2017 Open Market Sale N/A N 400000 05/04/2017 Regular way settlement Ordinary Shares 05/17/2017 Open Market Sale N/A N 100000 05/19/2017 Regular way settlement Ordinary Shares 05/02/2017 Open Market Sale N/A N 100000 05/04/2017 Regular way settlement Ordinary Shares 05/18/2017 Open Market Sale N/A N 100000 05/22/2017 Regular way settlement Ordinary Shares 05/18/2017 Open Market Sale N/A N 100000 05/22/2017 Regular way settlement Ordinary Shares 11/23/2018 Open Market Sale N/A N 5415 11/27/2018 Regular way settlement Ordinary Shares 11/28/2018 Open Market Sale N/A N 32512 11/30/2018 Regular way settlement Ordinary Shares 05/01/2017 Open Market Sale N/A N 178710 05/03/2017 Regular way settlement Ordinary Shares 05/18/2017 Open Market Sale N/A N 100000 05/22/2017 Regular way settlement Ordinary Shares 11/20/2018 Open Market Sale N/A N 115671 11/23/2018 Regular way settlement Ordinary Shares 11/30/2018 Open Market Sale N/A N 91615 12/04/2018 Regular way settlement Ordinary Shares 11/20/2018 Open Market Sale N/A N 250000 11/23/2018 Regular way settlement Ordinary Shares 12/06/2018 Open Market Sale N/A N 128869 12/10/2018 Regular way settlement Ordinary Shares 12/07/2018 Open Market Sale N/A N 171131 12/11/2018 Regular way settlement Ordinary Shares 12/07/2018 Open Market Sale N/A N 100000 12/11/2018 Regular way settlement Ordinary Shares 11/30/2018 Open Market Sale N/A N 3382 12/04/2018 Regular way settlement Ordinary Shares 08/03/2017 Open Market Sale N/A N 100000 08/07/2017 Regular way settlement Ordinary Shares 08/04/2017 Open Market Sale N/A N 100000 08/08/2017 Regular way settlement Ordinary Shares 08/03/2017 Open Market Sale N/A N 200000 08/07/2017 Regular way settlement Ordinary Shares 08/04/2017 Open Market Sale N/A N 240000 08/08/2017 Regular way settlement Ordinary Shares 08/03/2017 Open Market Sale N/A N 70000 08/07/2017 Regular way settlement Ordinary Shares 08/04/2017 Open Market Sale N/A N 875000 08/08/2017 Regular way settlement Ordinary Shares 08/07/2017 Open Market Sale N/A N 300000 08/09/2017 Regular way settlement Ordinary Shares 08/03/2017 Open Market Sale N/A N 84235 08/07/2017 Regular way settlement Ordinary Shares 08/07/2017 Open Market Sale N/A N 150000 08/09/2017 Regular way settlement Ordinary Shares 08/07/2017 Open Market Sale N/A N 150000 08/09/2017 Regular way settlement Ordinary Shares 08/07/2017 Open Market Sale N/A N 300000 08/09/2017 Regular way settlement Ordinary Shares 08/08/2017 Open Market Sale N/A N 300000 08/10/2017 Regular way settlement Ordinary Shares 08/02/2017 Open Market Sale N/A N 100000 08/04/2017 Regular way settlement Ordinary Shares 08/08/2017 Open Market Sale N/A N 300000 08/10/2017 Regular way settlement Ordinary Shares 08/08/2017 Open Market Sale N/A N 200000 08/10/2017 Regular way settlement Ordinary Shares 08/02/2017 Open Market Sale N/A N 300000 08/04/2017 Regular way settlement Y 09/06/2023 /s Jason Breeding, Authorized Signatory