DOSSIER · 13F Holders · Q2 2026
SLS

SELLAS LIFE SCIENCES GROUP I

210 institutions still hold SELLAS LIFE SCIENCES GROUP I as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 81642T209·210 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.2B
visible holders
Holders
210
filers reporting
Concentration
18.90%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

210 institutions reported SLS in Q2 2026. BlackRock, Inc. leads at 18.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$222M15.1M0.00%Q2 2026
02
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$198M13.4M0.02%Q2 2026
03
STATE STREET CORP
CIK 0000093751
$192M13.0M0.01%Q2 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$121M8.2M0.00%Q2 2026
05
Anson Funds Management LP
CIK 0001491072
$105M7.1M6.26%Q2 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$72M4.9M0.00%Q2 2026
07
Vanguard Portfolio Management
CIK 0002100121· Index
$32M2.2M0.00%Q2 2026
08
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$31M1.1M0.01%Q2 2026
09
JONES FINANCIAL COMPANIES LLLP
CIK 0000815917
$29M2.3M0.01%Q2 2026
10
NORTHERN TRUST CORP
CIK 0000073124· Index
$24M1.6M0.00%Q2 2026
11
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$20M1.3M0.00%Q2 2026
12
UBS Group AG
CIK 0001610520
$18M1.3M0.00%Q2 2026
13
MORGAN STANLEY
CIK 0000895421
$18M1.2M0.00%Q2 2026
14
DAGCO, INC.
CIK 0001767343
$18M1.2M3.36%Q2 2026
15
Sio Capital Management, LLC
CIK 0001482416
$18M1.2M3.01%Q2 2026
16
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$16M1.1M0.01%Q2 2026
17
BARCLAYS PLC
CIK 0000312069
$12M837K0.00%Q2 2026
18
BANK OF AMERICA CORP /DE/
CIK 0000070858
$12M788K0.00%Q2 2026
19
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$9M597K0.00%Q2 2026
20
GOLDMAN SACHS GROUP INC
CIK 0000886982
$9M585K0.00%Q2 2026
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Insiders at SELLAS LIFE SCIENCES GROUP I
Cicic DraganBurns John ThomasStergiou Angelos M.Kalin Katherine BachVan Nostrand Robert LWasman JaneVarian JohnScheinberg David A