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Algoma Steel Group Inc (ASTL)

CUSIP: 015658107 | NYSE | Basic Materials · Steel | Small Cap | 333 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/AMmcap International Inc. SPC10,954,73810.4%New 5%+ stakeJun 30, 2026No 13F filer matched
13D/AZekelman Industries, Inc.3,229,9983.1%Newly reportedSep 10, 2025No 13F filer matched
13G/AMmcap International Inc. SPC10,954,738
10.4% of class · Jun 30, 2026New 5%+ stake
No 13F filer matched
13D/AZekelman Industries, Inc.3,229,998
3.1% of class · Sep 10, 2025Newly reported
No 13F filer matched

Institutional Holders — Q3 2026

MacKenzie Financial Corp1,280,834
0.0% of portfolio›$5.3M
Dimensional Fund Advisors LP395,867
0.0% of portfolio›$1.7M
Simplex Trading, LLC93,795
0.0% of portfolio›$391.1K
Net Worth Advisory Group49,761
0.1% of portfolio›$204.5K
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management21,773
0.0% of portfolio›$90.8K
Element Pointe Advisors, LLC10,000
0.0% of portfolio›$41.7K
Assetmark, Inc2,500
0.0% of portfolio›$10.4K
Citigroup Inc2,129
0.0% of portfolio›$8.9K
Stone House Investment Management, LLC1,056
0.0% of portfolio›$4.4K
FNY Investment Advisers, LLC700
0.0% of portfolio›$2
TD Waterhouse Canada Inc.200
0.0% of portfolio›$820
Physician Wealth Advisors, Inc.111
0.0% of portfolio›$463
Arlington Trust Co LLC100
0.0% of portfolio›$417
SBI Securities Co., Ltd.50
0.0% of portfolio›$209
Pinnacle Wealth Planning Services, Inc.5
0.0% of portfolio›$21
StyleTurnoverLocationFiled
MacKenzie Financial Corp
1,280,834$5.3M0.0%CoreMediumToronto Ontario, Australia2026-11-02
Dimensional Fund Advisors LP
395,867$1.7M0.0%IndexLowAustin, TX2026-11-04
Simplex Trading, LLC
93,795$391.1K0.0%CoreVery HighChicago, IL2026-11-04
Net Worth Advisory Group
49,761$204.5K0.1%GARPMediumSandy, UT2026-10-20
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management
21,773$90.8K0.0%GrowthVery LowSeattle, WA2026-10-27
Element Pointe Advisors, LLC
10,000$41.7K0.0%ETFLowMiami, FL2026-10-21
Assetmark, Inc
2,500$10.4K0.0%ETFLowConcord, CA2026-10-21
Citigroup Inc
2,129$8.9K0.0%CoreMediumNew York, NY2026-11-04
Stone House Investment Management, LLC
1,056$4.4K0.0%ETFMediumTunkhannock, PA2026-10-23
FNY Investment Advisers, LLC
700$20.0%GrowthVery HighNew York, NY2026-10-16
TD Waterhouse Canada Inc.
200$8200.0%CoreLowToronto, Australia2026-10-16
Physician Wealth Advisors, Inc.
111$4630.0%ETFMediumMidvale, UT2026-10-20
Arlington Trust Co LLC
100$4170.0%ETFMediumBirmingham, AL2026-10-20
SBI Securities Co., Ltd.
50$2090.0%Agg GrowthLowTokyo, Mexico2026-10-22
Pinnacle Wealth Planning Services, Inc.
5$210.0%GARPLowMansfield, OH2026-10-27