STX
Seagate Technology Holdings plc
NASDAQ · Technology · Computer Hardware · IE
$606.38
+2.13%0
Insider buys (3m)
150
Insider sells (3m)
-$255.8M
Net value (3m)
-28.5%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 560 | $599 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 82 | $630 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | M-Exempt | 14,000 | $46 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 6 | $678 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 920 | $613 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | M-Exempt | 915 | $158 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 400 | $601 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 120 | $670 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 68 | $660 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 34 | $677 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 640 | $624 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 600 | $589 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,600 | $605 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 40 | $628 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 132 | $661 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 760 | $619 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,480 | $595 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 891 | $608 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 80 | $626 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,080 | $622 |
| Nov 3, 2026 | Morris John Christopher · officer: EVP & CTO | Sale | 118 | $632 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 120 | $640 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,200 | $600 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 800 | $590 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,160 | $620 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 280 | $591 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 481 | $598 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 680 | $610 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 1,177 | $609 |
| Nov 3, 2026 | MOSLEY WILLIAM D · director, officer: CEO | Sale | 240 | $623 |
Institutional positioning
13F filings over the trailing two quarters
New 860Increased 1254Reduced 1282Sold out 112
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 15,166,793 | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 14,630,067 | Aug 13, 2026 |
| BLACKROCK, INC. | Reduced | 14,274,083 | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 14,155,673 | May 15, 2026 |
| SANDERS CAPITAL, LLC | Reduced | 12,897,201 | May 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 11,094,908 | May 8, 2026 |
| STATE STREET CORP | Increased | 9,911,669 | Sep 22, 2026 |
| STATE STREET CORP | Reduced | 9,321,632 | May 15, 2026 |
| FMR LLC | Increased | 8,176,918 | May 15, 2026 |
| FMR LLC | Reduced | 8,153,134 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 7,999,686 | Aug 13, 2026 |
| JANE STREET GROUP, LLC | Increased | 7,883,013 | Aug 14, 2026 |
| Invesco Ltd. | Increased | 7,546,280 | Aug 14, 2026 |
| JPMORGAN CHASE & CO | Reduced | 6,659,239 | May 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 5,906,385 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Nov 3, 2026