SELLAS LIFE SCIENCES GROUP I

Ticker: SLS CUSIP: 81642T209 Class: COM NEW

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2022

Shares 1,315 Value ($000) $2 Avg Close $2.76 Range $2.00 - $3.48

Q1 2022

Shares 6,912 Value ($000) $46 Avg Close $5.85 Range $4.25 - $7.40

Q4 2021

Shares 6,948 Value ($000) $38 Avg Close $7.57 Range $5.20 - $9.78

Q4 2020

Shares 16 Value ($000) $0 Avg Close $4.00 Range $2.33 - $19.38

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2022	1,315	$2	$2.76	$2.00 - $3.48
Q1 2022	6,912	$46	$5.85	$4.25 - $7.40
Q4 2021	6,948	$38	$7.57	$5.20 - $9.78
Q4 2020	16	$0	$4.00	$2.33 - $19.38