Seagate
Hard drives and mass-capacity storage · Ireland
Seagate designs and manufactures hard drives, from its own read heads and disks, and sells mostly high-capacity nearline drives to cloud operators and equipment makers.
What makes it different
Its newest drives heat the disk with a laser to pack data.
44Largest data center drive, terabytesFY2026
Mozaic HAMR drives reach 44 terabytes, letting cloud customers store more per slot and per watt.
How big it is
How big is Seagate?
$12.2BRevenueFY2026
789HDD exabytes shippedFY2026
30,000Full-time employeesFY2026
How it makes money FY2026
Four fifths from data centers.
- Data Center80%
- Edge IoT20%
How the business works
Make heads and disks. Sell capacity to clouds.
- 1Heads, disks and drives in-house
- 2Long-term cloud supply plans
- 3Nearline drives by exabyte
Big cloud customers plan volumes with Seagate in advance, so it builds high-capacity drives to committed demand.
Who owns it
- Vanguard Capital Management7.19%
- BlackRock, Inc.5.7%
CEO: William D. (Dave) Mosley
Who it competes with
Key moments
- 1979Seagate founded
- 1980ST-506, the first 5.25-inch hard drive
- 1996Merger with Conner Peripherals
- 2000Taken private in the VERITAS deal
- 2002Returns to the stock market
Sources
Every number on this page comes from Seagate's own reports.
Full profile
The rest of the story is in the app.
What Seagate tracks18 metrics
HDD exabytes shipped
Nearline exabytes shipped
Largest customer
Results, quarter by quarterwith a chart
Revenue
Profit
Margin
The full timeline21 moments
2024
2025
2026
Seagate vs Sandiskside by side
Revenue
Profit
People
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