InsiderSignal.AI

InsiderSignal.ai

STX - Seagate Technology Holdings Plc

Insider Sale by Mosley William D (CEO)

1 Month
After Trade
Before Trade

Loading data...

Trade Summary

4 days ago, Mosley William D, serving as CEO at Seagate Technology Holdings Plc (STX), sold 20,000 shares at $420.73 per share, for a total transaction value of $8,414,638.00. Following this transaction, Mosley William D now holds 355,591 shares of STX.

This sale represents a 5.00% decrease in Mosley William D's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, April 1, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, April 2, 2026, 1 day after the trade was made.

Seagate Technology Holdings Plc operates in the TECHNOLOGY sector, specifically within the COMPUTER HARDWARE industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Mosley William D

Mosley William D

CEO

William David Mosley is the Chief Executive Officer and Director of Seagate Technology Holdings plc (STX), a leading developer and manufacturer of data storage solutions including hard disk drives, solid state drives, and related technologies.[[1]](https://www.marketscreener.com/insider/WILLIAM-MOSLEY-A01UXX/)[[2]](https://investor.cirrus.com/corporate-governance/board-of-directors/person-details/default.aspx?ItemId=2a5654a4-f781-4369-b0d8-0240d8d98fcb) He assumed the CEO role in October 2017, following positions as President and COO (June 2016–September 2017), President of Operations and Technology, Executive Vice President of Global Sales and Marketing, and various R&D leadership roles after joining Seagate in 1996 as a Senior Engineer.[[1]](https://www.marketscreener.com/insider/WILLIAM-MOSLEY-A01UXX/)[[2]](https://investor.cirrus.com/corporate-governance/board-of-directors/person-details/default.aspx?ItemId=2a5654a4-f781-4369-b0d8-0240d8d98fcb)[[3]](https://cirrus2016ir.q4web.com/news-and-events/investor-news/news-details/2024/Cirrus-Logic-Nominates-William-D.-Mosley-for-Election-to-Board-of-Directors/default.aspx) Previously, he worked as a Senior Engineer at Micropolis Corp. and Conner Peripherals, Inc., and as a Research Physicist at Lawrence Livermore National Laboratory.[[1]](https://www.marketscreener.com/insider/WILLIAM-MOSLEY-A01UXX/) Dr. Mosley holds a Ph.D. in Physics from the University of California, Davis, specializing in solid state physics.[[2]](https://investor.cirrus.com/corporate-governance/board-of-directors/person-details/default.aspx?ItemId=2a5654a4-f781-4369-b0d8-0240d8d98fcb)[[3]](https://cirrus2016ir.q4web.com/news-and-events/investor-news/news-details/2024/Cirrus-Logic-Nominates-William-D.-Mosley-for-Election-to-Board-of-Directors/default.aspx) He also serves on the Board of Directors at Cirrus Logic, Inc. since July 2024, bringing expertise in high-technology management, global operations, R&D, and sales.[[1]](https://www.marketscreener.com/insider/WILLIAM-MOSLEY-A01UXX/)[[3]](https://cirrus2016ir.q4web.com/news-and-events/investor-news/news-details/2024/Cirrus-Logic-Nominates-William-D.-Mosley-for-Election-to-Board-of-Directors/default.aspx) As of late 2025, his net worth is estimated at $81 million, and he has engaged in insider trading, such as selling 19,607 shares for $5.42 million on December 1, 2025, under a Rule 10b5-1 plan.[[1]](https://www.marketscreener.com/insider/WILLIAM-MOSLEY-A01UXX/)[[4]](https://www.investing.com/news/insider-trading-news/seagate-technology-ceo-mosley-sells-54m-in-shares-93CH-4387206)

View full insider profile →

Trade Price

$420.73

Quantity

20,000

Total Value

$8,414,638.00

Shares Owned

355,591

Trade Date

Wednesday, April 1, 2026

4 days ago

SEC Filing Date

Thursday, April 2, 2026

Filed 1 day after trade

TECHNOLOGYCOMPUTER HARDWARE

About Seagate Technology Holdings Plc

Company Overview

No company information available
View news mentioning STX

💬 Want Deeper Insight?

Use our AI assistant to ask questions about this trade, the insider, or the company.

Chat with AI

Share this trade

https://insidersignal.ai/trade/5311752

🚀 Track Insider Trades in Real-Time

Create a free account to access our full database of insider trades, AI-powered analysis, price alerts, and discover what corporate executives are buying and selling.

Create Free AccountLearn More

✓ Free forever plan available  •  ✓ No credit card required  •  ✓ Cancel anytime