Companies / Sellas Life Sciences Group Inc

Sellas Life Sciences Group Inc

Nasdaq: SLSCIK 1390478NEW YORK, NYgalenabiopharma.com ↗

Financials · FY2023

Revenue$0
Net income$-26.86M
Total debt$0
Cash$138.34M
Diluted EPS$-0.25
Shares outstanding201.9M

Ownership

201.9M shares outstanding · as of Aug 10, 2026
1.4%Insiders
Ownership
Insiders1.38%2,793,170
10%+ / strategic12.45%25,132,889
Institutions13.22%26,704,844
Public float72.95%147,314,806

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 8

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Insider% of sharesShares
Stergiou Angelos M.CEOPresident and CEO · Director
0.87%1,759,183
Cicic DraganSVP, Chief Development Officer
0.28%557,805
Burns John ThomasFormerCFO
0.27%554,327
Kalin Katherine BachDirector
0.08%154,400
Wasman JaneDirector
0.05%92,900
Van Nostrand Robert LDirector
0.04%82,900
Scheinberg David aDirector
0.04%73,082
Varian JohnDirector
0.04%72,900

Institutional holders 126

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HolderValue% of shares
BlackRock, Inc.$222.44M7.46%
State Street Corporation$191.83M6.44%
Vanguard Group Inc$31.92M4.19%
Geode Capital Management, LLC$16.55M1.94%
Marshall Wace, LLP$8.62M1.01%
Nuveen, LLC$3.86M0.51%
Northern Trust Corp$3.51M0.46%
Morgan Stanley$3.36M0.44%
Deutsche Bank AG$2.81M0.09%
LPL Financial LLC$2.30M0.08%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jun 16, 2026Stergiou Angelos M.
CEO
GrantCommon Stock$0+1.1M
+153.42%
1,759,183
0.87% of shares
low
Jan 7, 2026Kalin Katherine Bach
Director
GrantCommon Stock$0+50K
+47.89%
154,400
0.08% of shares
low
Jan 7, 2026Burns John Thomas
Executive
GrantCommon Stock$0+300K
+117.96%
554,327
0.27% of shares
low
Jan 7, 2026Cicic Dragan
Executive
GrantCommon Stock$0+300K
+116.37%
557,805
0.28% of shares
low
Jan 7, 2026Varian John
Director
GrantCommon Stock$0+50K
+218.34%
72,900
0.04% of shares
low
Jan 7, 2026Van Nostrand Robert L
Director
GrantCommon Stock$0+50K
+151.98%
82,900
0.04% of shares
low
Jan 7, 2026Scheinberg David a
Director
GrantCommon Stock$0+50K
+216.62%
73,082
0.04% of shares
low
Jan 7, 2026Wasman Jane
Director
GrantCommon Stock$0+50K
+116.55%
92,900
0.05% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
State Street CorporationPassive13G—12,996,558—
Vanguard Group IncPassive13G/A—0—
Highbridge Capital Management, LLCPassive13G/A———
Anson Funds Management LPPassive13G/A———
BlackRock, Inc.Passive13G/A—12,136,331—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
SLS——81642T209—