Alec Barclay - 24 Feb 2022 Form 4 Insider Report for T2 Biosystems, Inc. (TTOO)

Role: Chief Operations Officer
Signature: /s/ John Sprague, Attorney-in-fact
Issuer symbol: TTOO
Transactions as of: 24 Feb 2022
Net transactions value: -$39,888
Form type: 4
Filing time: 28 Feb 2022, 15:00:47 UTC
Previous filing: 23 Feb 2022
Next filing: 30 Mar 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TTOO	Common Stock	Options Exercise		+168,488	+213%		247,633	24 Feb 2021	Direct	F1
transaction	TTOO	Common Stock	Tax liability	$39,888	-88,878	-36%	$0.4488	158,755	24 Feb 2021	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TTOO	Restricted Stock Units	Options Exercise	$0	-168,488	-33%	$0.000000	336,976	24 Feb 2022	Common Stock	168,488		Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F2	88,878 shares of common stock were automatically withheld at vesting to cover required tax withholding.
F3	On February 24, 2021 the reporting person was granted 505,464 RSU's that vest in three equal annual installments commencing on February 24, 2022.