SELLAS LIFE SCIENCES GROUP I

CUSIP: 81642T100 Class: COM

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

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

Q3 2019
Shares 142 Value ($000) $0 Avg Close — Range —
Q2 2019
Shares 142 Value ($000) $0 Avg Close — Range —
Q1 2019
Shares 142 Value ($000) $0 Avg Close — Range —
Q4 2018
Shares 224 Value ($000) $0 Avg Close — Range —
Q3 2018
Shares 224 Value ($000) $0 Avg Close — Range —
Q2 2018
Shares 224 Value ($000) $1 Avg Close — Range —
Q1 2018
Shares 224 Value ($000) $1 Avg Close — Range —