SELLAS Life Sciences (SLS) Shares Outstanding (Diluted Average) (2012 - 2026)

SELLAS Life Sciences (SLS) reported Shares Outstanding (Diluted Average) of $172.5 million for Q1 2026, up 96.54% year-over-year from $87.8 million in Q1 2025, and up 58.17% on a QoQ basis from $109.1 million in Q4 2025.

SELLAS Life Sciences (SLS) has 12 years of Shares Outstanding (Diluted Average) data on file, last reported at $172.5 million in Q1 2026.

  • Quarterly Shares Outstanding (Diluted Average) rose 96.54% year-over-year to $172.5 million in Q1 2026, while the trailing twelve-month figure through Mar 2026 was $172.5 million (up 96.54% YoY) and the FY2025 annual result came in at $109.1 million, up 78.18% from the prior year.
  • Shares Outstanding (Diluted Average) climbed to $172.5 million in Q1 2026 per SLS's latest filing, from $109.1 million in the prior quarter.
  • Across five years, Shares Outstanding (Diluted Average) topped out at $172.5 million in Q1 2026 and bottomed at $15.9 million in Q1 2022.
  • The 5-year median for Shares Outstanding (Diluted Average) is $44.8 million (2024), against an average of $57.0 million.
  • The widest annual swing landed in 2022, when Shares Outstanding (Diluted Average) grew 6.86%; it then jumped 121.99% in 2024.
  • Tracing SLS's Shares Outstanding (Diluted Average) over 5 years: stood at $19.4 million in 2022, then surged by 43.21% to $27.8 million in 2023, then soared by 120.33% to $61.2 million in 2024, then soared by 78.18% to $109.1 million in 2025, then jumped by 58.17% to $172.5 million in 2026.
  • Per Business Quant, the three latest SLS Shares Outstanding (Diluted Average) figures stand at $172.5 million (Q1 2026), $109.1 million (Q4 2025), and $98.3 million (Q3 2025).

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares (Diluted Avg.) (Qtr)
1 Quantum Biopharma 1,216,509.61 Bn 1,216,509.61 Bn - 3.06 Mn
2 Alterity Therapeutics 764,224.41 Bn 764,224.38 Bn - -
3 Legend Biotech 2,716.00 Bn 2,715.71 Bn 242.10 Mn 810.00
4 Nanobiotix 2,248.83 Bn 2,248.77 Bn - -
5 Akari Therapeutics 1,951.18 Bn 1,951.17 Bn - 118.76 Bn
6 Vertex Pharmaceuticals 113.69 Bn 106.44 Bn 2.59 Bn 256.30 Mn
7 Evaxion A 64.16 Bn 64.14 Bn - -
8 Regeneron Pharmaceuticals 63.94 Bn 55.18 Bn 3.31 Bn 107.70 Mn
9 Alnylam Pharmaceuticals 40.13 Bn 37.12 Bn 959.66 Mn 138.23 Mn
10 SELLAS Life Sciences 1.61 Bn 1.61 Bn - 172.48 Mn

Historic Data

Download Data 🔒
DateValue
Mar 31, 2026 172.48 Mn
Dec 31, 2025 109.05 Mn
Sep 30, 2025 98.31 Mn
Jun 30, 2025 98.56 Mn
Mar 31, 2025 87.76 Mn
Dec 31, 2024 61.20 Mn
Sep 30, 2024 56.94 Mn
Jun 30, 2024 57.63 Mn
Mar 31, 2024 44.81 Mn
Dec 31, 2023 27.78 Mn
Sep 30, 2023 28.36 Mn
Jun 30, 2023 25.96 Mn
Mar 31, 2023 23.55 Mn
Dec 31, 2022 19.40 Mn
Sep 30, 2022 20.56 Mn
Jun 30, 2022 20.29 Mn
Mar 31, 2022 15.90 Mn
Dec 31, 2021 15.48 Mn
Sep 30, 2021 15.87 Mn
Jun 30, 2021 15.07 Mn
Mar 31, 2021 14.88 Mn
Dec 31, 2020 7.98 Mn
Sep 30, 2020 7.17 Mn
Jun 30, 2020 6.55 Mn
Jun 30, 2017 31.94 Mn
Jun 30, 2016 9.27 Mn
Jun 30, 2015 148.65 Mn
Jun 30, 2013 83.33 Mn
Jun 30, 2012 56.55 Mn