GENOCEA BIOSCIENCES INC

CUSIP: 372427104 Class: COM

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

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

Q1 2019
Shares 260 Value ($000) $0 Avg Close — Range —
Q4 2018
Shares 260 Value ($000) $0 Avg Close — Range —
Q3 2018
Shares 260 Value ($000) $0 Avg Close — Range —
Q2 2018
Shares 260 Value ($000) $0 Avg Close — Range —