Company · Ownership research

SELLAS Life Sciences Group, Inc. SLS

CIK 0001390478 · CUSIP 81642T209

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 81642T209 (SLS), not CUSIP 81642T959 (SLS), CUSIP 81642T909 (SLS), and does not merge CUSIPs.

This page lists the top 20 of 32 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$2.38M 2,292,857 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 11, 2025	▾
02	Anson Funds Management LP CIK 1491072 · View history	$1.24M 1,192,266 shares	0.15%	+398.43K(+50.20%)Added	SEC filing ↗ Feb 14, 2025	▾
03	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$763.17K 733,546 shares	0.00%	+128.35K(+21.20%)Added	SEC filing ↗ Feb 12, 2025	▾
04	CITADEL ADVISORS LLC CIK 1423053 · View history	$504.73K 485,317 shares	0.00%	+438.00K(+925.60%)Added	SEC filing ↗ Feb 14, 2025	▾
05	BlackRock, Inc. CIK 2012383 · View history	$461.98K 444,208 shares	0.00%	+12.59K(+2.90%)Added	SEC filing ↗ Feb 7, 2025	▾
06	Opus Capital Group, LLC CIK 1330325 · View history	$248.00K 238,500 shares	0.03%	+12.40K(+5.50%)Added	SEC filing ↗ Jan 31, 2025	▾
07	STATE STREET CORP CIK 93751 · View history	$236.84K 227,729 shares	0.00%	+53.20K(+30.50%)Added	SEC filing ↗ Feb 14, 2025	▾
08	NORTHERN TRUST CORP CIK 73124 · View history	$140.11K 134,721 shares	0.00%	+33.88K(+33.60%)Added	SEC filing ↗ Feb 14, 2025	▾
09	UBS Group AG CIK 1610520 · View history	$132.93K 127,821 shares	0.00%	+127.82KNew	SEC filing ↗ Feb 14, 2025	▾
10	XTX Topco Ltd CIK 1828301 · View history	$55.56K 53,426 shares	0.00%	-9.36K(-14.90%)Reduced	SEC filing ↗ Feb 13, 2025	▾
11	LPL Financial LLC CIK 1403438 · View history	$53.97K 51,894 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 11, 2025	▾
12	Mariner, LLC CIK 1373442 · View history	$52.63K 50,609 shares	0.00%	+3.18K(+6.70%)Added	SEC filing ↗ Feb 13, 2025	▾
13	Virtu Financial LLC CIK 1533964 · View history	$43.00K 41,155 shares	0.00%	-38.09K(-48.10%)Reduced	SEC filing ↗ Feb 11, 2025	▾
14	INDEPENDENT FINANCIAL GROUP, LLC CIK 275484 · View history	$24.18K 23,250 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Jun 12, 2026	▾
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$16.89K 16,238 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 6, 2025	▾
16	MORGAN STANLEY CIK 895421 · Amended · View history	$16.41K 15,778 shares	0.00%	-1.66K(-9.50%)Reduced	SEC filing ↗ May 15, 2025	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$16.31K 15,683 shares	0.00%	+15.68KNew	SEC filing ↗ Feb 11, 2025	▾
18	COMMONWEALTH EQUITY SERVICES, LLC CIK 312272 · View history	$13.00K 12,054 shares	0.00%	-3.50K(-22.50%)Reduced	SEC filing ↗ Feb 10, 2025	▾
19	JANE STREET GROUP, LLC CIK 1595888 · View history	$12.80K 12,304 shares	0.00%	+12.30KNew	SEC filing ↗ Feb 14, 2025	▾
20	Equitable Holdings, Inc. CIK 1333986 · View history	$12.54K 12,060 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 12, 2025	▾

Showing 20 / 32 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

6,218,691

Not deduplicated across managers

Disclosed value

$6.47M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

SELLAS Life Sciences Group, Inc. · Q4 2024

Explore all 32 reporting institutions.

This page includes 20 of 32 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.