Alec Barclay - 14 Mar 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: 14 Mar 2022
Net transactions value: -$4,160
Form type: 4
Filing time: 30 Mar 2022, 16:00:19 UTC
Previous filing: 28 Feb 2022
Next filing: 11 Apr 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		+21,666	+14%		180,421	14 Mar 2022	Direct	F1
transaction	TTOO	Common Stock	Tax liability	$4,160	-11,428	-6.3%	$0.3640	168,993	14 Mar 2022	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	-21,666	-50%	$0.000000	21,667	14 Mar 2022	Common Stock	21,666		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	11,428 shares of common stock were automatically withheld at vesting to cover required tax withholding.
F3	On March 14, 2020 the reporting person was granted 65,000 that vest in three equal annual installments commencing on March 14, 2021.