13G Filing: Tiger Management and T2 Biosystems Inc. (TTOO)

Item 4.

Ownership.

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)

Amount beneficially owned:

1,737,085 shares deemed beneficially owned by Tiger Partners Trading LLC

1,737,085 shares deemed beneficially owned by Tiger Partners, L.P.

1,737,085 shares deemed beneficially owned by Tiger Partners GP, LLC

1,737,085 shares deemed beneficially owned by Tiger Management L.L.C.

1,737,085 shares deemed beneficially owned by The Julian H. Robertson, Jr. Revocable Trust

1,737,085 shares deemed beneficially owned by Julian H. Robertson, Jr.

(b)

Percent of class:

5.68% deemed beneficially owned by Tiger Partners Trading LLC

5.68% deemed beneficially owned by Tiger Partners, L.P.

5.68% deemed beneficially owned by Tiger Partners GP, LLC

5.68% deemed beneficially owned by Tiger Management L.L.C.

5.68% deemed beneficially owned by The Julian H. Robertson, Jr. Revocable Trust

5.68% deemed beneficially owned by Julian H. Robertson, Jr.

(c)

Number of shares as to which Tiger Partners Trading LLC has:

(i)

Sole power to vote or to direct the vote

0

(ii)

Shared power to vote or to direct the vote

1,737,085

(iii)

Sole power to dispose or to direct the disposition of

0

(iv)

Shared power to dispose or to direct the disposition of

1,737,085

Number of shares as to which Tiger Partners, L.P. has:

(i)

Sole power to vote or to direct the vote

0

(ii)

Shared power to vote or to direct the vote

1,737,085

(iii)

Sole power to dispose or to direct the disposition of

0

(iv)

Shared power to dispose or to direct the disposition of

1,737,085