SELLAS LIFE SCIENCES GROUP I

Ticker: SLS CUSIP: 81642T209 Class: COM NEW

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q3 2023

Shares 640,011 Value ($000) $1,050 Avg Close $1.58 Range $1.39 - $1.91

Q2 2023

Shares 1,250,000 Value ($000) $1,963 Avg Close $1.61 Range $1.32 - $1.83

Q1 2023

Shares 1,250,000 Value ($000) $1,788 Avg Close $2.47 Range $1.17 - $4.13

Q2 2022

Shares 254,018 Value ($000) $566 Avg Close $2.93 Range $2.10 - $4.25

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	640,011	$1,050	$1.58	$1.39 - $1.91
Q2 2023	1,250,000	$1,963	$1.61	$1.32 - $1.83
Q1 2023	1,250,000	$1,788	$2.47	$1.17 - $4.13
Q2 2022	254,018	$566	$2.93	$2.10 - $4.25