Dot Hill Systems
2015
$696M
Why
Seagate acquired storage array maker Dot Hill Systems for about $696 million to expand its systems business.
Seagate Technology Holdings plc
Data Storage and Computer HardwareFounded 1979- HQ today: 121 Woodlands Avenue 5, Singapore
Reviewed by Swet Parvadiya
Company data updated: October 2026
Acquisitions
Seagate Acquisitions
7
Major Deals Covered
$5.4B
Disclosed Deal Value
What are Seagate's biggest acquisitions?
Seagate's largest disclosed acquisition here is Maxtor for $1.9B in 2006. This page covers 7 major deals from 1989 to 2015, each with its price where disclosed and the reason behind it.
- Major deals covered
- 7
- Largest deal
- Maxtor ($1.9B)
- First deal
- 1989
- Most recent
- 2015
| Company | Year | Price | Purpose |
|---|---|---|---|
| Imprimis Technology | 1989 | Undisclosed | Seagate bought Imprimis, Control Data's disk drive unit, adding high-end drives and recording head technology. |
| Frye Computer Systems | 1995 | Undisclosed | Seagate acquired Frye Computer Systems, a network management software company. |
| Conner Peripherals | 1996 | $1.0B | Seagate merged with Conner Peripherals, founded by Seagate co-founder Finis Conner, in a deal valued at about $1 billion to gain scale in desktop and notebook drives. |
| Maxtor | 2006 | $1.9B | Seagate acquired rival Maxtor in an all-stock deal of about $1.9 billion, completed in 2006. |
| Samsung HDD business | 2011 | $1.4B | Seagate agreed to buy Samsung Electronics' hard drive business for about $1.375 billion in cash and stock, adding 2.5-inch drive technology and a supply relationship with Samsung. |
| Xyratex | 2014 | $375.0M | Seagate acquired Xyratex, a maker of drive test equipment and storage enclosures, for about $375 million. |
| Dot Hill Systems | 2015 | $696.0M | Seagate acquired storage array maker Dot Hill Systems for about $696 million to expand its systems business. |
- What companies has Seagate bought?
- Major acquisitions by Seagate documented here include Maxtor (2006), Samsung HDD business (2011), Conner Peripherals (1996), Dot Hill Systems (2015) and Xyratex (2014).
- What is Seagate's most recent acquisition?
- The most recent Seagate acquisition documented here is Dot Hill Systems, in 2015, for $696M.
Xyratex
2014
$375M
Why
Seagate acquired Xyratex, a maker of drive test equipment and storage enclosures, for about $375 million.
Samsung HDD business
2011
$1.4B
Why
Seagate agreed to buy Samsung Electronics' hard drive business for about $1.375 billion in cash and stock, adding 2.5-inch drive technology and a supply relationship with Samsung.
Maxtor
2006
$1.9B
Why
Seagate acquired rival Maxtor in an all-stock deal of about $1.9 billion, completed in 2006.
Impact
The deal removed a major competitor and added Maxtor's desktop and external drive business.
Outcome
It cut the number of large HDD makers and expanded Seagate's manufacturing scale.
Conner Peripherals
1996
$1.0B
Why
Seagate merged with Conner Peripherals, founded by Seagate co-founder Finis Conner, in a deal valued at about $1 billion to gain scale in desktop and notebook drives.
Impact
The combination made Seagate the largest independent disk drive maker at the time.
Outcome
It added Conner's product lines and customers, strengthening Seagate's position against other drive makers.
Frye Computer Systems
1995
Why
Seagate acquired Frye Computer Systems, a network management software company.
Imprimis Technology
1989
Why
Seagate bought Imprimis, Control Data's disk drive unit, adding high-end drives and recording head technology.
Seagate Technology Holdings plc's Growth & Acquisition Strategy
Seagate grows by raising capacity per drive rather than adding unit capacity. Each Mozaic generation (3+, then 4+ at up to 44TB, with Mozaic 5 targeting 50TB) lowers cost per terabyte for cloud customers while improving Seagate's margins. Management pitches HDDs as the economical home for the large datasets, checkpoints and archives that AI workloads create, and it keeps capital spending tight while paying down debt.
How Seagate Technology Holdings plc Makes Money
Seagate makes money by selling storage hardware. The largest piece is mass-capacity storage: nearline Exos hard drives sold to hyperscale cloud providers, enterprise OEMs and data center operators, plus drives for video surveillance and NAS. Customers buy on cost per terabyte, power per terabyte and reliability, so each new generation of higher-capacity drives, now HAMR-based Mozaic platforms, lets Seagate sell more exabytes per unit of factory capacity. A smaller legacy business sells client and consumer drives (BarraCuda, FireCuda, external drives), and Seagate also sells enterprise SSDs, storage systems and Lyve data services. Cash is returned through a quarterly dividend, $0.74 per share as of the October 2026 payment, and share buybacks.
Seagate Acquisitions FAQ
What was the landmark acquisition of Imprimis Technology in 1989?
In June 1989, Seagate acquired Imprimis Technology, the disk drive subsidiary of Control Data Corporation, for $450 million. The acquisition gave Seagate high-capacity enterprise SCSI drives, large corporate clients, and thin-film magnetic recording head fabrication.
How did the 1996 merger with Conner Peripherals reshape the industry?
In February 1996, Seagate acquired Conner Peripherals for $1.1 billion in stock. The merger united estranged founders Alan Shugart and Finis Conner, creating the world's largest independent disk drive manufacturer with unmatched scale in desktop and portable drives.
What was the $1.9 billion acquisition of Maxtor Corporation in 2006?
In May 2006, Seagate completed the all-stock acquisition of Maxtor for $1.9 billion. The deal eliminated a fierce direct price competitor, consolidated global retail and desktop drive channels, and added substantial manufacturing capacity.
How did the acquisition of Samsung Electronics' HDD business in 2011 consolidate the market?
In December 2011, Seagate acquired Samsung's hard disk drive business for $1.4 billion (paid half in stock and half in cash). In exchange, Samsung received a 9.6% equity stake in Seagate and agreed to supply NAND flash memory for Seagate's enterprise SSDs.
Why did Seagate acquire premium brand LaCie in 2012?
In 2012, Seagate acquired French consumer storage maker LaCie for $186 million. LaCie provided Seagate with an iconic, design-forward brand favored by creative professionals, photographers, and Apple ecosystem users.
What was the acquisition of Xyratex Ltd. in 2014?
In 2014, Seagate acquired UK-based Xyratex Ltd. for $374 million. Xyratex was the premier manufacturer of hard drive test equipment and high-performance enterprise storage systems, vertically integrating Seagate's drive testing and array manufacturing.
What was the strategic purchase of Dot Hill Systems in 2015?
In October 2015, Seagate acquired Dot Hill Systems for $694 million in cash. Dot Hill's proprietary modular storage arrays and real-time streaming software formed the foundation of Seagate's enterprise storage systems and Corvault arrays.
How did Seagate acquire EVault and enter cloud backup software?
In 2006, Seagate acquired online backup software provider EVault for $185 million, expanding into cloud recovery and managed services before eventually divesting the business to focus strictly on hardware storage infrastructure.
What happened to Seagate's equity investment in SandForce?
Seagate was an early strategic investor and partner in flash controller startup SandForce, which was acquired by LSI Corporation in 2011, providing Seagate with advanced flash controller intellectual property for hybrid drives.
How did M&A help Seagate build its patent portfolio?
Through decades of strategic acquisitions (Imprimis, Conner, Maxtor, Samsung), Seagate accumulated over 10,000 active storage patents, creating an insurmountable intellectual property fortress around magnetic recording physics.
What is Seagate's current M&A strategy under CEO Dave Mosley?
Seagate's current M&A focus is disciplined and targeted: rather than pursuing large-scale horizontal buyouts, it invests selectively in enterprise storage software, automated drive regeneration tooling, and nanophotonic research partnerships.
How did anti-trust regulators evaluate Seagate's Samsung acquisition?
Global regulators (including the US FTC, European Commission, and China's MOFCOM) scrutinized the 2011 deal alongside Western Digital's purchase of Hitachi GST, ultimately approving both transactions with temporary supply and pricing remedies to ensure market competition.
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