MOSLEY WILLIAM D
CEO
MOSLEY WILLIAM D has filed 34 SEC Form 4 filings (404 transaction rows) across 2 companies, including STX, CRUS, with disclosures dating back to 2025. 29 of those filings fall inside the rolling window. Most recent filing: Oct 2, 2026.
On the most recent filing, MOSLEY WILLIAM D is listed as CEO at Seagate Technology Holdings plc. Inside the rolling window, MOSLEY WILLIAM D reported no open-market purchases and 19 open-market sales totaling $303.9M in STX. The largest disclosed transaction in the window is a sale of 97,889.25 STX shares on Sep 15, 2026, worth $75.6M.
Companies traded
Other insiders at STX
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$303.9M
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| STX | CEO | Sale | 30,000 | $27.7M | Oct 2 | SEC ↗ | |
| STX | CEO | Sale | 97,889.25 | $75.6M | Sep 16 | SEC ↗ | |
| STX | CEO | Sale | 1,869.75 | $1.5M | Sep 15 | SEC ↗ | |
| STX | CEO | Sale | 2,849.25 | $2.5M | Sep 11 | SEC ↗ | |
| STX | CEO | Sale | 30,000 | $24.5M | Sep 3 | SEC ↗ | |
| STX | CEO | Sale | 18,138.5 | $15.4M | Aug 24 | SEC ↗ | |
| STX | CEO | Sale | 30,000 | $24.5M | Aug 4 | SEC ↗ | |
| STX | CEO | Sale | 30,000 | $27.4M | Jul 2 | SEC ↗ | |
| STX | CEO | Sale | 1,768.25 | $1.6M | Jun 15 | SEC ↗ | |
| STX | CEO | Sale | 2,854.75 | $2.3M | Jun 11 | SEC ↗ | |
| STX | CEO | Sale | 30,000 | $27.3M | Jun 2 | SEC ↗ | |
| STX | CEO | Sale | 30,000 | $22.5M | May 21 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $8.4M | Apr 2 | SEC ↗ | |
| STX | CEO | Sale | 24,584 | $10.0M | Mar 23 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $7.7M | Mar 3 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $8.6M | Feb 3 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $5.7M | Jan 6 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $5.4M | Dec 2 | SEC ↗ | |
| STX | CEO | Sale | 20,000 | $5.3M | Nov 5 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 1, 2025 | STX | Sale | $258K |
| Oct 1, 2025 | STX | Sale | $998K |
| Oct 1, 2025 | STX | Sale | $259K |
| Oct 1, 2025 | STX | Sale | $127K |
| Oct 1, 2025 | STX | Sale | $482K |
| Oct 1, 2025 | STX | Sale | $202K |
| Oct 1, 2025 | STX | Sale | $176K |
| Oct 1, 2025 | STX | Sale | $251K |
| Oct 1, 2025 | STX | Sale | $374K |
| Oct 1, 2025 | STX | Sale | $199K |
| Oct 1, 2025 | STX | Sale | $173K |
| Oct 1, 2025 | STX | Sale | $344K |
| Oct 1, 2025 | STX | Sale | $343K |
| Oct 1, 2025 | STX | Sale | $122K |
| Oct 1, 2025 | STX | Sale | $97K |
| Oct 1, 2025 | STX | Sale | $120K |
| Oct 1, 2025 | STX | Sale | $72K |
| Oct 1, 2025 | STX | Sale | $119K |
| Oct 1, 2025 | STX | Sale | $95K |
| Oct 1, 2025 | STX | Sale | $47K |
| Oct 1, 2025 | STX | Sale | $140K |
| Sep 2, 2025 | STX | Sale | $1.2M |
| Sep 2, 2025 | STX | Sale | $966K |
| Sep 2, 2025 | STX | Sale | $983K |
| Sep 2, 2025 | STX | Sale | $67K |
Frequently asked questions
How many SEC Form 4 filings has MOSLEY WILLIAM D made?
MOSLEY WILLIAM D has filed 34 SEC Form 4 filings (404 transaction rows) across 2 companies, including STX, CRUS since 2025.
Which companies does MOSLEY WILLIAM D trade?
MOSLEY WILLIAM D has filed SEC Form 4 disclosures for 2 companies, including STX, CRUS.
When was MOSLEY WILLIAM D's most recent SEC Form 4 filing?
MOSLEY WILLIAM D's most recent SEC Form 4 filing on Tracefour is dated Oct 2, 2026.
What is MOSLEY WILLIAM D's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, MOSLEY WILLIAM D is listed as CEO.
What is MOSLEY WILLIAM D's total buy and sell value in the current window?
Inside the rolling retention window, MOSLEY WILLIAM D bought $0 and sold $303.9M based on SEC Form 4 filings.
What was MOSLEY WILLIAM D's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 97,889.25 STX shares on 2026-09-15, worth $75.6M, per SEC Form 4 filings.