SELLAS Life Sciences Group, Inc.

SLS

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001390478

SEC filings (opens in a new tab)

No open-market purchases or sales by SELLAS Life Sciences Group, Inc. insiders were filed in the last 90 days; 193 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.

Q1 2025 vs. Q4 2024

How the institutions holding SELLAS Life Sciences Group, Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of SLS: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Q1 2025	Change
Holders	31	45	+14
Shares	6.22M	14.3M	+8.09M (+130.1%)
Value	$6.47M	$15.5M	+$8.99M (+139.0%)

New holders (18)

Institutions that held SELLAS Life Sciences Group, Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to SLS in Q1 2025
Institution	Shares	Value	% of portfolio
Susquehanna International Group, LLP	688,696	$743.8K	0.00%
Atom Investors LP	64,216	$69.4K	0.01%
Two Sigma Investments, LP	48,287	$52.1K	0.00%
Renaissance Technologies LLC	34,892	$37.7K	0.00%
Jain Global LLC	27,400	$29.6K	0.00%
Gsa Capital Partners LLP	22,727	$25.0K	0.00%
Hudson Bay Capital Management LP	20,660	$22.3K	0.00%
Quadrature Capital Ltd	20,673	$22.2K	0.00%
Grange Capital, LLC	13,501	$14.6K	0.02%
Two Sigma Securities, LLC	12,969	$14.0K	0.00%
Schonfeld Strategic Advisors LLC	12,481	$13.5K	0.00%
Marshall Wace, LLP	11,482	$12.4K	0.00%
Calton & Associates, Inc.	11,000	$11.9K	0.00%
Brooklyn FI, LLC	10,140	$11.0K	0.00%
Private Wealth Management Group, LLC	10,000	$10.8K	0.00%
Wells Fargo & Company	3,003	$3.24K	0.00%
Caldwell Sutter Capital, Inc.	100	$108	0.00%
Avion Wealth	573	$0	0.00%

Sold out (4)

Institutions that held SELLAS Life Sciences Group, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of SLS in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
XTX Topco Ltd	53,426	$55.6K
Goldman Sachs Group Inc	15,683	$16.3K
R Squared Ltd	2,197	$2.29K
FMR LLC	1	$1