SLS — SELLAS Life Sciences Group, Inc.

US Healthcare Pharma & biotech equity mkt cap 3.1B
15.46 +15.33% today
USD · as of 2026-08-21

Price · 2024-08-26 → 2026-08-21

499 daily closes shown
52w low 1.39 · high 15.46

Anonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.

Performance

1 day+15.33%
1 week+20.97%
1 month+25.28%
3 months+104.50%
6 months+272.53%
Year to date+255.40%
1 year+735.68%
3 years+988.73%
5 years+53.53%

Technicals

RSI 1478.7
vs 50-day avg+32.17%
vs 200-day avg+149.97%
Volatility 1y103.9%
Max drawdown 1y-36.24%
Avg volume 30d6.6M
Daily bars held2,674
History from2016-01-04

Measured signals that fired on SLS

datesignal measured base rate
2026-08-21Breakout to a 52-week high
price
-1.00% over 21 days · t = -8.58 · n = 24,386
statistically distinguishable from its control group
2026-07-28Fair value gap, bearish
structure
-0.45% over 21 days · t = -3.29 · n = 108,591
statistically distinguishable from its control group
2026-06-26Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group
2026-05-29Volume shock without a price move
price
-1.33% over 21 days · t = -4.53 · n = 16,432
statistically distinguishable from its control group
2026-05-15Institutional holders jumped in a quarter
ownership
-0.52% over 21 days · t = -0.38 · n = 1,553
not distinguishable from its control group
2026-05-13Breakout to a 52-week high
price
-1.00% over 21 days · t = -8.58 · n = 24,386
statistically distinguishable from its control group

Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →

Insider transactions (Form 4)

dateinsiderwhatshares pricevalue
2026-06-16Stergiou Angelos M.
President and CEO
Grant or award1.1M0.000
2026-01-07Kalin Katherine Bach
Director
Grant or award50.0K0.000
2026-01-07VAN NOSTRAND ROBERT L
Director
Grant or award50.0K0.000
2026-01-07Wasman Jane
Director
Grant or award50.0K0.000
2026-01-07Burns John Thomas
CFO
Grant or award300.0K0.000
2026-01-07SCHEINBERG DAVID A
Director
Grant or award50.0K0.000
2026-01-07Varian John
Director
Grant or award50.0K0.000
2026-01-07CICIC DRAGAN
SVP, Chief Development Officer
Grant or award300.0K0.000
2025-12-03Stergiou Angelos M.
President and CEO
Other Acquisition/Disposition187.1K1.50280.6K
2025-12-03CICIC DRAGAN
SVP, Chief Development Officer
Other Acquisition/Disposition63.8K1.5095.7K

Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →

Largest institutional holders

managervalueshares
BlackRock, Inc.51.6M12.2M
STATE STREET CORP35.5M8.4M
VANGUARD CAPITAL MANAGEMENT LLC31.8M7.5M
GEODE CAPITAL MANAGEMENT, LLC16.6M3.9M
MARSHALL WACE, LLP8.6M2.0M
JONES FINANCIAL COMPANIES LLLP7.3M1.7M
VANGUARD PORTFOLIO MANAGEMENT LLC6.2M1.5M
MORGAN STANLEY5.7M1.3M
NORTHERN TRUST CORP5.4M1.3M
VANGUARD FIDUCIARY TRUST CO5.1M1.2M

13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →

Short selling

Avg short volume, 90d56.9% of tape
Days observed61

This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →

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