Companies: 10,795·Total market cap: $144.5T
Algoma Steel Group Inc.

Algoma Steel Group Inc.

ASTLNASDAQBasic Materials● Active
$4.99
+$0.03(+0.50%)
Market Cap$523094993
P/E Ratio
52W High$7.245
52W Low$3.02

Algoma Steel Group Inc. (ASTL) Shares Outstanding — Overview

Basic and diluted weighted average shares, YoY change, float context, and historical trend from SEC filings and FMP.

ASTL · shares outstanding · updated Jun 8, 2026

Key metrics

Basic Shares Outstanding · Weighted average · fiscal year
108.7M +0.25% YoY Change
FY · as of Mar 31, 2026 · Reported in CAD
vs 108.4M in FY 2025
Diluted Shares Outstanding
108.7M
incl. options, RSUs, convertibles
Dilution Spread
+0.00%
Diluted vs Basic
YoY Change
+0.25%
year-over-year
Float (Free Float)
97.4M
publicly tradable shares
92.8% of total
Source: FMP /income-statement · /shares-float · SEC 10-K / 10-QUpdated: 2026-06-08

Shares Outstanding Growth Rate

3-Year CAGRdeclining
-4.0%
2023 → 2026
5-Year CAGRdeclining
-6.0%
2021 → 2026
10-Year CAGR

Negative CAGR typically indicates share buyback or retirement activity. Interpret alongside Splits and Financials tabs. Splits / Financials

Shares outstanding history

↓ Decrease — typically buyback / retirement
↑ Increase — issuance / equity compensation
Latest
* most recent reported · FMP /income-statement · weightedAverageShsOut

Annual shares outstanding by year

FY 2026Latest
Diluted Shares: 108.7M
108.7M
+0.25%
FY 2025
Diluted Shares: 108.5M
108.4M
+0.04%
FY 2024
Diluted Shares: 133.0M
108.4M
-11.65%
FY 2023
Diluted Shares: 147.0M
122.7M
-17.07%
FY 2022
Diluted Shares: 148.0M
148.0M
+0.00%
FMP /income-statement · weightedAverageShsOut · weightedAverageShsOutDilUnit: Billions (B)

Basic Materials sector shares outstanding comparison

Shares Outstanding for similar companies or competitors in the Basic Materials sector.

#SymbolCompanyShares (Basic)vs ASTL
#1
BHP Group LimitedBHP
BHP Group Limited
2.537B+>999%
#2
Rio Tinto GroupRIO
Rio Tinto Group
1.624B+>999%
#3
Freeport-McMoRan Inc.FCX
Freeport-McMoRan Inc.
1.443B+>999%
#4
Newmont CorporationNEM
Newmont Corporation
1.106B+917.4%
#5
Southern Copper CorporationSCCO
Southern Copper Corporation
838.2M+671.1%
#6
Linde plcLIN
Linde plc
466.2M+328.9%
#7
Algoma Steel Group Inc.ASTL
Algoma Steel Group Inc.YOU
108.7M

/company-screener · per-peer /income-statement · cache 86400s

Understanding Shares Outstanding

What Are Shares Outstanding? (Basic)

Algoma Steel Group Inc. (ASTL) shares outstanding is the total number of issued shares held by shareholders — the basis for Basic EPS and market capitalization. As of March 31, 2026, Algoma Steel Group Inc. reports 108.7M basic shares outstanding (weighted average).

Basic vs. Diluted Shares Outstanding

Algoma Steel Group Inc.'s basic shares outstanding (108.7M) represents currently issued shares. Diluted shares outstanding (108.7M) also includes potential shares from stock options, RSUs, and convertibles. Dilution spread: +0.00%.

Shares Outstanding vs. Float (Free Float)

Algoma Steel Group Inc.'s float is 97.4M (92.8% of total shares outstanding) — shares freely available for public trading, excluding insider-held and restricted shares.

Float97.4M(92.8%)
Outstanding104.9M

Float data from /shares-float reflects the most recent SEC filing period-end. The weighted average shares (from /income-statement) may differ — this is a normal reporting window difference, not a data error.

FMP /income-statement · /shares-float · SEC EDGAR · CAD

About shares outstanding & methodology

Algoma Steel Group Inc. (ASTL) shares outstanding history from 2013 to 2026. Shares outstanding can be defined as the total number of shares held by all shareholders — including institutional investors, retail investors, and company insiders — assuming conversion of all convertible debt, securities, warrants, and options. This metric excludes the company's treasury shares.

Algoma Steel Group Inc. shares outstanding for the fiscal year ending March 31, 2026 were 108.7M, a 0.25% increase year-over-year. Algoma Steel Group Inc. FY 2026 shares outstanding were 108.7M, a +0.25% increase from FY 2025.

Algoma Steel Group Inc. is a leading company operating in the Basic Materials sector. The company's share count trajectory — with a 10-year CAGR of — — is a key signal for investors evaluating capital return policy, EPS accretion, and long-term shareholder value creation.

Figures tie to SEC 10-K/10-Q income statement disclosures and FMP /income-statement · /shares-float where noted.

Frequently asked questions

ASTL shares outstanding · 4 questions

As of March 31, 2026, Algoma Steel Group Inc. (ASTL) has approximately 108.7M basic shares outstanding and 108.7M diluted shares outstanding. This represents a +0.25% year-over-year increase from FY 2025 (108.4M). The increase may reflect equity compensation issuances or secondary offerings.

ASTL shares outstandinghow many shares does ASTL haveASTL basic shares 2026ASTL diluted shares

Data: FMP /income-statement · /shares-float · SEC EDGAR · weighted average basis · Algoma Steel Group Inc. SEC 10-K & 10-Q filings · US GAAP · Last updated: 2026-06-08