The following are significant dates in Seagate's history.
| May 2006 | Seagate acquires Maxtor Corporation |
| April 2006 | Introduces world's first 750GB disc drive |
| February 2006 | Introduces world's first 12GB 1-inch disc drive |
| January 2006 | |
| October 2005 | New LG High Definition Plasma TV Has Built-In Seagate Hard Drive |
| September 2005 | Seagate acquires Mirra Inc |
| August 2005 | Seagate wins "Company of the Year" and "Best Product Innovation" ARC Awards from VarBusiness Magazine |
| July 2005 | Seagate ships quarterly record 27.3 million hard disc drives |
| June 2005 | Seagate does it again…drives innovation with 10 new, groundbreaking hard disc drives: First perpendicular recording 2,5-inch drive, and first drive with Full Disc Encryption data security |
| June 2005 | U.S. Congress Recognizes Seagate Engineer for Advancing Society, Culture and Commerce |
| May 2005 | Seagate honored for advancement of women in the workplace |
| March 2005 | Seagate ships 10 millionth 15K RPM disc drive |
| February 2005 | PC World names Seagate Barracuda 7200 Best Hard Drive |
| December 2004 | Seagate CTO Mark Kryder honored as Top Technology Innovator by VARBusiness Magazine |
| June 2004 | Seagate launches 12 new products -- an unprecedented array of disc drives to target a wide range of applications like MP3 players, DVR, consumer electronics, notebook computers, PCs, servers and corporate data centers. |
| February 2004 | Seagate announces Savvio, the industry's first 2.5-inch enterprise disc drive |
| October 2003 | Seagate recognized by Sun as 2003's Best Disc Drive company |
| September 2003 | Seagate announces highest areal density at 100GB per platter |
| August 2003 | VARBusiness magazine names Seagate #1 in Innovation and Enterprise disc drives |
| June 2003 | Seagate enters notebook market with Momentus 2.5-inch disc drive |
| January 2003 | Seagate ships record 18.3 million disc drives in quarter ended December 2002 |
| December 2002 | Seagate re-enters the public market (NYSE: STX) |
| November 2002 | Seagate delivers industry's first Serial ATA disc drive -- the Barracuda ATA V |
| November 2002 | Seagate demonstrates perpendicular recording areal density of 100 gigabits per square inch |
| August 2002 | Seagate successfully demos HAMR technology - HAMR aims to increase areal density by more than 100 times |
| May 2002 | Seagate announces Cheetah 15K.3 - its third generation 15,000 RPM drive one year ahead of the competition |
| October 2001 | Microsoft Xbox ships with Seagate disc drives |
| August 2001 | VARBusiness Magazine names Seagate Top Hard Drive Vendor in reader poll |
| March 2001 | Second–generation Cheetah X15 introduced – one year ahead of the competition |
| November 2000 | Seagate introduces the world's highest capacity disc drive – Barracuda 180 Gbyte |
| February 2000 | Seagate introduces world's first 15,000 RPM disc drive – Cheetah X15 |
| January 2000 | DISHPlayer 500 integrates Seagate disc drives – Seagate is world's largest digital video recorder and Consumer data storage provider |
| April 1999 | Seagate ships its 250 millionth disc drive |
| August 1998 | Seagate Research is established in Pittsburgh, PA –USA |
| March 1998 | Seagate produces one billionth magnetic recording heads |
| October 1997 | Company introduces world's first fibre channel interface disc drive |
| October 1997 | Seagate introduces first 7,200 RPM, Ultra ATA drive for desktop computers |
| October 1996 | Seagate introduces the first 10,000 RPM drive – Cheetah family |
| February 1996 | Seagate and Conner Peripherals merge to form the world's largest independent storage device manufacturer |
| May 1993 | Seagate ships 50 millionth disc drive |
| November 1992 | Seagate first–to–market with shock–sensing technology for 2.5–inch disc drives |
| November 1992 | Seagate introduces the first 7,200 RPM disc drive |
| 1989 | Seagate acquires Imprimis Technology – High Capacity Drives and Components |
| 1980 | Seagate builds industry's first 5.25–inch hard drive |
| 1979 | Seagate founded as disc drive manufacturer |
