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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
1730056	M John Sprague	101 Hartwell Avenue Lexington MA 02421	Chief Financial 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	2021-02-21	10,000	$0.00	40,735	No	4	M	Direct
Common Stock	Disposition	2021-02-23	5,250	$2.04	35,485	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	Restricted Stock Units	Disposition	2021-02-21	10,000	$0.00	10,000	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
10,000			No	4	M	Direct

Footnotes

Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
Includes 6,812 shares acquired under the Issuer's employee stock purchase plan ("ESPP") on May 15, 2020 and 1,701 shares acquired under the ESPP on November 15, 2020.
The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
On February 21, 2019 the reporting person was granted 30,000 RSU's that vest in three equal annual installments beginning on February 21, 2020.