SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

McDonough John

(Last)

(First)

(Middle)

101 HARTWELL AVENUE

(Street)

LEXINGTON

02421

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/06/2014

3. Issuer Name and Ticker or Trading Symbol
T2 Biosystems, Inc. [ TTOO ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President & CEO

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	154,763	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option	07/25/2012	01/16/2019	Common Stock	46,806	$1.16	D
Stock Option	02/27/2013	02/27/2019	Common Stock	11,729	$1.16	D
Stock Option	06/24/2014	09/14/2020	Common Stock	127,490	$1.96	D
Stock Option	⁽¹⁾	01/17/2022	Common Stock	194,558	$2.45	D
Stock Option	⁽²⁾	10/24/2023	Common Stock	166,029	$3.22	D
Stock Option	⁽³⁾	01/22/2024	Common Stock	33,205	$3.22	D
Stock Option	⁽⁴⁾	07/02/2024	Common Stock	66,411	$10.7	D
Stock Option	12/24/2011	09/14/2020	Common Stock	14,062	$1.96	D

Explanation of Responses:

1. This Stock Option was granted on January 17, 2012 and vests in 48 equal monthly installments beginning on the grant date.

2. This Stock Option was granted on October 24, 2013 and vests in 48 equal monthly installments beginning on September 25, 2013.

3. This Stock Option was granted on January 22, 2014 and vests in 48 equal monthly installments beginning on the grant date.

4. This Stock Option was granted on July 2, 2014 and vests in 48 equal monthly installments beginning on the grant date.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney

	/s/ John McDonough	08/06/2014
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.