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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1492674	T2 Biosystems Inc.	TTOO	Surgical & Medical Instruments & Apparatus (3841)	204827488

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1615626	A. Michael Pfaller	101 Hartwell Avenue Lexington MA 02421	Chief Medical Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2015-05-08	15,440	$10.69	15,440	No	4	M	Direct
Common Stock	Disposition	2015-05-08	15,440	$16.31	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Acquisiton	2015-05-08	15,440	$0.00	15,440	$10.69

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
37,501		2024-04-09	No	4	M	Direct

Footnotes

The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $15.90 to $ 16.40. The reporting person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
This Stock Option was granted on April 9, 2014 and vesting commenced on March 3, 2014. Options to purchase 25% of the total underlying shares vested on the first anniversary of the vesting commencement date and options to purchase the remaining shares vest in 36 equal monthly installments thereafter.