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The company

SELLAS Life Sciences Group, Inc.

SLS · Nasdaq

Health CareBiotechnologyLeading

SLS stood above a rising 150-day average in 48 of the last 52 weekly readings, including each of the last 46 weeks. It is 9.9% above that average now. Biotechnology: 16% of its 561 stocks in an uptrend (−15 points in four weeks); Health Care: 26% (−10 points in four weeks).

SEC filings

Statistics

Rotation: Leading
Weeks in an uptrend: 46 in a row
Industry in uptrend: 16% -15 in 4 wk
Insider buys, 12 months: $101K
Insider sales, 12 months: $0
Officials’ trades on record: 0
Institutions holding: 182 (+34)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 48 of 52 weeks.

20 Apr – 19 Oct

Biotechnology: Few of its stocks are in an uptrend and the share has fallen sharply over four weeks. Health Care: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months1

Sale orders, 12 months0

Buyers · sellers1 · 0

No open-market buy or sale by its insiders on record.

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders182+34 on the quarter

New · exited62 · 28

Reported value$1.1B

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
BlackRock, Inc.added · filed 7 Aug 2026	15,070,302$222.4M	+2,871,892+23.5%
STATE STREET CORPadded · filed 7 Aug 2026	12,996,558$191.8M	+4,600,202+54.8%
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	8,226,105$121.4M	+700,176+9.3%
GEODE CAPITAL MANAGEMENT, LLCadded · filed 12 Aug 2026	4,884,175$72.1M	+971,569+24.8%
Anson Funds Management LPnew · filed 13 Aug 2026	4,500,000$66.4M	+4,500,000
JONES FINANCIAL COMPANIES LLLPadded · filed 14 Aug 2026	2,304,561$28.6M	+629,484+37.6%
VANGUARD PORTFOLIO MANAGEMENT LLCadded · filed 13 Aug 2026	2,161,099$31.9M	+698,293+47.7%
SUSQUEHANNA INTERNATIONAL GROUP, LLPadded · filed 14 Aug 2026	2,050,597$30.3M	+1,653,541+416.5%
NORTHERN TRUST CORPadded · filed 13 Aug 2026	1,619,928$23.9M	+343,944+27.0%
VANGUARD FIDUCIARY TRUST COadded · filed 13 Aug 2026	1,335,166$19.7M	+132,327+11.0%