Dr. William D. Mosley

CEO and Director at Seagate Technology Holdings

Board

Since October 2017

Age

57 years

Education

Holds a PhD in solid state physics.

Tenure

Joined STX in 1996 as a Senior Engineer and advanced through various leadership roles including Vice President of Research and Development, Senior Vice President of Global Disk Storage Operations, Executive Vice President positions, and President roles before assuming the CEO and Director positions in 2017.

Also at Seagate Technology Holdings

BST

Ban Seng Teh

EVP and Chief Commercial Officer

DJCM

Dr. John C. Morris

SVP, HDD and SSD Products and CTO

Gianluca Romano

EVP and CFO

About

Dr. William D. Mosley is a seasoned executive with nearly three decades of experience at STX, beginning his career in 1996 as a Senior Engineer where he quickly developed a reputation for technical acumen and operational excellence.

Throughout his tenure, he has held multiple pivotal roles that have shaped the company’s strategic direction, including responsibilities in research and development, global disk storage operations, sales and marketing, and overall operations management.

In October 2017, he ascended to the role of Chief Executive Officer, and shortly before that, in July 2017, he joined the board as a Director, underscoring the organization’s confidence in his visionary leadership.

Beyond his contributions at STX, his leadership has been marked by a commitment to innovation and transformation, driving significant operational improvements and inspiring organizational change that have left a lasting impact on the company’s trajectory.

$STX Performance Under Dr. William D. Mosley

Past Roles

Organization	Role	Date Range	Details [N/A]
Seagate Technology Holdings (STX)	President and Chief Operating Officer (COO)	June 2016 to September 2017	N/A
Seagate Technology Holdings (STX)	President of Operations and Technology	October 2013 to June 2016	N/A
Seagate Technology Holdings (STX)	Executive Vice President of Operations	March 2011 to October 2013	N/A
Seagate Technology Holdings (STX)	Executive Vice President of Global Sales and Marketing	February 2009 to March 2011	N/A
Seagate Technology Holdings (STX)	Senior Vice President of Global Disk Storage Operations	2007 to 2009	N/A
Seagate Technology Holdings (STX)	Vice President of Research and Development, Engineering	2002 to 2007	N/A
Seagate Technology Holdings (STX)	Senior Engineer	1996 to 2002	N/A

Fixed Compensation

Data from FY 2024

Component Name	Amount	Payment Schedule	Additional Details
Base Salary	$1,100,008	Annual	Actual paid: $676,928 due to a temporary 100% salary reduction (May–November 2023).
401(k) Plan Matching Contribution	$6,000	Annual	Maximum matching amount available to U.S. employees.
Company Contribution to HSA	$1,400	Annual	Contribution for family coverage.

Performance Compensation

Data from FY 2024

Performance-Based Restricted Share Units (PSUs) - Standard

Metric	Value	Notes
Grant Date	September 11, 2023
Grant Date Fair Value	$5,340,975
Grant Date Stock Price	$64.31 per share
Threshold	44,250 shares	50% of target
Target	88,500 shares
Maximum	177,000 shares	200% of target
Evaluation Period	3 years	Performance period based on financial & operational criteria
Vesting Schedule	Post-performance period	Vesting contingent on continuous service and meeting performance criteria

Performance-Based Restricted Share Units (PSUs) - Strategic Mozaic Product Launch Award

Metric	Value	Notes
Grant Date	February 20, 2024
Grant Date Fair Value	$1,928,165
Grant Date Stock Price	Not provided [N/A]
Threshold	11,808 shares	50% of target
Target	23,615 shares
Maximum	47,230 shares	200% of target
Vesting Schedule	Tranche 1: 1 year; Tranche 2: 2 years	Based on achieving Mozaic product sales and qualification deadlines

Restricted Share Units (RSUs)

Metric	Value	Notes
Grant Date	September 11, 2023
Grant Date Fair Value	$3,124,404
Vesting Schedule	4-year schedule	25% vesting at first anniversary, then equal quarterly installments contingent on continuous service

Time-Based Options

Metric	Value	Notes
Grant Date	September 11, 2023
Number of Options	141,600
Exercise Price	$64.31 per share
Grant Date Fair Value	$2,553,855
Vesting Schedule	4-year schedule	25% vests after one year, then 1/48th monthly thereafter

Overall Compensation Actually Paid (CAP) Adjustments for 2024

Metric	Value	Notes
Summary Compensation Table Total	$13,631,727
Total Compensation Actually Paid	$31,274,781