ENTEROMEDICS INC

CUSIP: 29365M307 Class: Common equity shares

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q3 2016
Shares 1,328 Value ($000) $0 Avg Close — Range —
Q2 2016
Shares 1,328 Value ($000) $0 Avg Close — Range —
Q1 2016
Shares 1,328 Value ($000) $1 Avg Close — Range —