Shareholder Information

1.Where is T2 Biosystems’ corporate headquarters?
 T2 Biosystems is headquartered at 101 Hartwell Avenue, Lexington, MA 02421. The main phone number is (781) 457-1200.
2.When was T2 Biosystems founded?
 T2 Biosystems was incorporated in 2006 in the state of Delaware.
3.How is T2 Biosystems’ stock traded?
 T2 Biosystems is traded on the NASDAQ Global Market under the ticker symbol TTOO and its CUSIP number is 89853L 104.
4.When is T2 Biosystems’ fiscal year-end?
 December 31st.
5.Who is the transfer agent for T2 Biosystems?
 
American Stock Transfer & Trust Company
Toll-free: (800) 937-5449 or International: (718) 921-8124
Operations Center
6201 15th Avenue
Brooklyn, NC 11219
http://www.amstock.com/main/nav_contactUs.asp
6.Who is T2 Biosystems’ independent auditor?
 
Ernst & Young
200 Clarendon Street
Boston, MA 02116
(617) 266-2000
7.Who is T2 Biosystems’ legal counsel?
 
Latham & Watkins LLP
200 Clarendon Street
Boston, MA 02116
(617) 948-6000
8.Where can I view T2 Biosystems’ corporate news releases?
 T2 Biosystems’ press release archives can be accessed HERE.
9.Where can I view documents that T2 Biosystems has filed with the Securities & Exchange Commission (SEC)?
 T2 Biosystems’ SEC filings can be accessed HERE or www.sec.gov.
10.Who should I contact if I have further questions?
 You can submit queries to T2 Biosystems’ investor relations department by contacting ir@T2Biosystems.com or (781) 761-4646.