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History: All Acquisitions of Western Digital

23 including two big ones, Hitachi GST and SanDisk

Here is the list of all acquisitions (23) of Western Digital, the biggest ones being HGST and SanDisk.

Month Year Acquired company Price in $ million Activity of acquired company
NA 1986 Paradise Systems NA Video graphic cards
NA 1986 Adaptive Data Systems NA SCSI devices
4 1987 Faraday Electronics NA Core logic products
1 1987 ViaNetix 2.2 LAN system software
12 1987 Tandon (assets) 80 HDD manufacturing
6 1988 Verticom 12 High-resolution video graphics monitors
NA 1994 Moduline Solutions NA FC products
9 2003 Read-Rite 180 Disk heads manufacturing
0 2007 Mionet NA Software for remote access and file sharing for CE products
8 2007 Komag 984 Rigid disk media for HDDs
8 2008 ST Microelectronics (part of) NA HDD controllers
4 2009 SiliconSystems 65 SSDs for embedded systems
7 2010 Hoya Magnetic Media Operations 233 Magnetic media sputtering operations
3 2011 Hitachi GST 4,800 HDD manufacturer; deal closed in March 2012
1 2013 Arkeia Software NA Backup software for SMBs
6 2013 sTec 340 SSD maker, incorporated into HGST
8 2013 Velobit NA Caching software for SSD
9 2013 Virident Systems 685 PCIe SSD
12 2014 Skyera NA AFA incorporated into HGST
3 2015 Amplidata NA SDS for high capacity scale out storage; integrated into HGST
10 2015 SanDisk 16,000 Flash products
8 2017 Upthere NA Home cloud backup
8 2017 Tegile Systems NA Multi-protocol SSD/HDD array with de-dupe for primary storage
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