Insider Transactions Reported by 25 Insiders of Seagate Technology Holdings plc

Symbol
STX on Nasdaq
Location
Singapore, Singapore

Insiders trading volume in the past year

Seagate Technology Holdings plc executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
ValueAct Holdings, L.P. Director, Other* $1,142,150,950 17 Feb 2022
William D. Mosley CEO, Director $170,074,375 -$71,835,131 -30% 11 Mar 2026
Gianluca Romano Evp & Cfo $27,767,375 -$23,626,538 -46% 11 Mar 2026
Stephen J. Luczo Director $19,204,985 04 Mar 2022
Jeffrey D. Nygaard EVP, Operations and Technology $8,683,090 01 Feb 2023
Richard L. Clemmer Director $7,608,125 25 Oct 2025
John C. Morris Evp & Cto $7,519,100 -$3,215,979 -30% 11 Mar 2026
Ban Seng Teh EVP & Chief Commercial Officer $4,780,400 -$26,497,956 -85% 11 Mar 2026
Michael R. Cannon Director $4,654,423 -$2,878,646 -38% 25 Oct 2025
Edward J. Zander Director $3,894,105 23 Oct 2023
Ravi Naik EVP, Lyve Storage Services $3,302,845 22 Mar 2023
Dylan G. Haggart Director $3,271,681 25 Oct 2025
Stephanie Tilenius Director $3,261,979 -$889,886 -21% 03 Nov 2025
Judy Bruner Director $3,226,375 -$1,135,559 -26% 19 Oct 2025
Prat Bhatt Director $3,126,072 25 Oct 2025
Katherine Schuelke SVP, CLO & Corporate Secretary $2,470,355 09 Dec 2023
Shankar Arumugavelu Director $2,246,352 -$1,472,825 -40% 10 Nov 2025
Yolanda Lee Conyers Director $1,909,305 -$714,232 -27% 02 Mar 2026
Jeffrey D. Fochtman SVP, Business & Marketing $1,252,560 12 Sep 2022
Robert A. Bruggeworth Director $738,983 19 Oct 2024
Kian Fatt Chong EVP Global Operations $535,075 -$5,074,098 -90% 11 Mar 2026
Mark Adams Director $461,168 25 Oct 2025
Jay L. Geldmacher Director $99,909 -$1,127,048 -92% 30 Jan 2026
James C. Lee Evp & Clo $89,654 -$1,150,340 -93% 26 Jan 2026
Thomas A. Szlosek Director $83,580 25 Oct 2025

Recent Insider Transactions by Companies or Individuals for Seagate Technology Holdings plc

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Ban Seng Teh STX Ordinary Shares Options Exercise 9.64% 989 11,248 11 Mar 2026 Direct
Ban Seng Teh STX Restricted Share Unit Options Exercise -14.3% -989 5,934 11 Mar 2026 Direct
Gianluca Romano STX Ordinary Shares Tax liability -1.28% -847 65,335 11 Mar 2026 Direct
Gianluca Romano STX Ordinary Shares Options Exercise 2.63% 1,695 66,182 11 Mar 2026 Direct
Gianluca Romano STX Restricted Share Unit Options Exercise -14.3% -1,695 10,170 11 Mar 2026 Direct
Kian Fatt Chong STX Ordinary Shares Options Exercise 116.7% 678 1,259 11 Mar 2026 Direct
Kian Fatt Chong STX Restricted Share Unit Options Exercise -14.3% -678 4,070 11 Mar 2026 Direct
John C. Morris STX Ordinary Shares Tax liability -2.37% -430 17,692 11 Mar 2026 Direct
John C. Morris STX Ordinary Shares Options Exercise 5.48% 942 18,122 11 Mar 2026 Direct
John C. Morris STX Restricted Share Unit Options Exercise -14.3% -942 5,652 11 Mar 2026 Direct
William D. Mosley STX Ordinary Shares Tax liability -0.41% -1,658 400,175 11 Mar 2026 Direct
William D. Mosley STX Ordinary Shares Options Exercise 0.83% 3,319 401,833 11 Mar 2026 Direct
William D. Mosley STX Restricted Share Unit Options Exercise -14.3% -3,319 19,914 11 Mar 2026 Direct
John C. Morris STX Ordinary Shares Tax liability -2.97% -516 16,837 09 Mar 2026 Direct
John C. Morris STX Ordinary Shares Options Exercise 6.92% 1,130 17,468 09 Mar 2026 Direct
John C. Morris STX Restricted Share Unit Options Exercise -53.1% -1,130 999 09 Mar 2026 Direct
Gianluca Romano STX Ordinary Shares Tax liability -1.9% -1,236 63,729 09 Mar 2026 Direct
Gianluca Romano STX Ordinary Shares Options Exercise 3.94% 2,473 65,244 09 Mar 2026 Direct
Gianluca Romano STX Restricted Share Unit Options Exercise -56.3% -2,473 1,918 09 Mar 2026 Direct
William D. Mosley STX Ordinary Shares Tax liability -0.65% -2,613 397,306 09 Mar 2026 Direct
William D. Mosley STX Ordinary Shares Options Exercise 1.33% 5,230 399,721 09 Mar 2026 Direct
William D. Mosley STX Restricted Share Unit Options Exercise -48.2% -5,230 5,630 09 Mar 2026 Direct
Kian Fatt Chong STX Ordinary Shares Options Exercise 581 581 09 Mar 2026 Direct
Kian Fatt Chong STX Restricted Share Unit Options Exercise -59% -581 404 09 Mar 2026 Direct
Ban Seng Teh STX Ordinary Shares Options Exercise 14% 1,262 10,259 09 Mar 2026 Direct
Ban Seng Teh STX Restricted Share Unit Options Exercise -51.3% -1,262 1,199 09 Mar 2026 Direct
William D. Mosley STX Ordinary Shares Sale -4.81% $7,695,262 $384.76 -20,000 395,897 02 Mar 2026 Direct
Yolanda Lee Conyers STX Ordinary Shares Sale -13.4% $295,192 $393.59 -750 4,851 02 Mar 2026 Direct
John C. Morris STX Ordinary Shares Sale -1.43% $98,400 $410.00 -240 16,566 24 Feb 2026 Direct
Kian Fatt Chong STX Ordinary Shares Sale -100% $2,434,740 $416.48 -5,846 0 23 Feb 2026 Direct
Gianluca Romano STX Ordinary Shares Tax liability -10.1% -7,096 63,250 22 Feb 2026 Direct
Gianluca Romano STX Ordinary Shares Options Exercise 24.9% 14,043 70,346 22 Feb 2026 Direct
Gianluca Romano STX Restricted Share Unit Options Exercise -100% -14,043 0 22 Feb 2026 Direct
Ban Seng Teh STX Ordinary Shares Options Exercise 191% 5,905 8,997 20 Feb 2026 Direct
Ban Seng Teh STX Performance-Based Restricted Share Units Options Exercise -100% -5,905 0 20 Feb 2026 Direct
Gianluca Romano STX Ordinary Shares Tax liability -9.59% -5,975 56,303 20 Feb 2026 Direct
Gianluca Romano STX Ordinary Shares Options Exercise 23.4% 11,807 62,278 20 Feb 2026 Direct
Gianluca Romano STX Performance-Based Restricted Share Units Options Exercise -100% -11,807 0 20 Feb 2026 Direct
Kian Fatt Chong STX Ordinary Shares Options Exercise 312% 4,427 5,846 20 Feb 2026 Direct
Kian Fatt Chong STX Performance-Based Restricted Share Units Options Exercise -100% -4,427 0 20 Feb 2026 Direct
William D. Mosley STX Ordinary Shares Tax liability -1.41% -5,966 415,897 20 Feb 2026 Direct
William D. Mosley STX Ordinary Shares Options Exercise 2.88% 11,807 421,863 20 Feb 2026 Direct
William D. Mosley STX Performance-Based Restricted Share Units Options Exercise -100% -11,807 0 20 Feb 2026 Direct
John C. Morris STX Ordinary Shares Tax liability -10.8% -2,032 16,806 20 Feb 2026 Direct
John C. Morris STX Ordinary Shares Options Exercise 30.7% 4,427 18,838 20 Feb 2026 Direct
John C. Morris STX Performance-Based Restricted Share Units Options Exercise -100% -4,427 0 20 Feb 2026 Direct
William D. Mosley STX Ordinary Shares Sale -4.65% $8,585,359 $429.27 -20,000 410,056 02 Feb 2026 Direct
Jay L. Geldmacher STX Ordinary Shares Sale -80.6% $414,423 $448.02 -925 223 30 Jan 2026 Direct
Ban Seng Teh STX Ordinary Shares Sale -86.7% $8,931,995 $442.29 -20,195 3,092 29 Jan 2026 Direct
Ban Seng Teh STX Ordinary Shares Options Exercise 68.1% 9,433 23,287 29 Jan 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.