Question 1

How many shares of SLS does SEI INVESTMENTS CO own?

Accepted Answer

As of 2026-Q2, SEI INVESTMENTS CO holds 26,581 shares of SLS (SELLAS LIFE SCIENCES GROUP I).

Question 2

What is SEI INVESTMENTS CO's SLS position worth?

Accepted Answer

As of 2026-Q2, SEI INVESTMENTS CO's SLS position is worth $392,336.

Question 3

When did SEI INVESTMENTS CO first buy SLS?

Accepted Answer

Based on available 13F filings, SEI INVESTMENTS CO first reported a position in SLS in 2025-Q3. They have held the position across 4 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Unchanged	26,581	0.0%	$392,336	0.0%	$14.76	0
2026-Q1	Unchanged	26,581	0.0%	$112,438	0.0%	$5.31	0
2025-Q4	Unchanged	26,581	0.0%	$100,210	0.0%	$3.31	0
2025-Q3	New	26,581	—	$42,795	0.0%	$1.56	31