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Disclosery

ASTL ALGOMA STL GROUP INC

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COM (common), issuer CIK 1860805

118 managers (118 13F filers) reported a position in ASTL shares at 2025-09-30, 77,210,963 shares in all. 22 filers opened a position and 31 filers sold out during the quarter.

Managers
118
13F filers
118
New
22
Added
37
Reduced
34
Sold out
31
Shares held by filers
77,210,963

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Maple Rock Capital Partners Inc.10,430,818$37.1M1.5%+2,034,01813F-HRTimeline
MMCAP International Inc. SPCin group MMCAP8,078,828$28.7M3.34%+860,61013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.7,333,104$26.1M<0.01%+948,06113F-HRTimelineGroup
DONALD SMITH & CO., INC.in group DONALD SMITH & CO., INC.5,937,020$21.1M0.42%-103,14813F-HRTimelineGroup
Scheer, Rowlett & Associates Investment…3,828,929$13.6M0.81%-69,27613F-HRTimeline
INVESCO SENIOR SECURED MANAGEMENT INC /…3,233,117$11.5M35.04%013F-HRTimeline
LITTLEJOHN & CO LLC2,693,887$9.58M4.83%+419,91513F-HRTimeline
GOLDENTREE ASSET MANAGEMENT LPin group GOLDENTREE ASSET MANAGEMENT LP2,493,548$8.86M0.73%013F-HRTimelineGroup
J. Goldman & Co LP2,263,011$8.05M0.3%+26,63813F-HRTimeline
FMR LLCin group FMR LLC2,214,646$7.87M<0.01%-1,738,20013F-HRTimelineGroup
CONTRARIAN CAPITAL MANAGEMENT, L.L.C.in group CONTRARIAN CAPITAL MANAGEMENT…2,037,686$7.24M1.83%-1,534,33213F-HRTimelineGroup
AEGIS FINANCIAL CORP1,786,122$6.35M2.43%013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd1,529,100$5.44M0.06%+1,518,53013F-HRTimelineGroup
AYAL Capital Advisors Ltd1,467,000$5.22M3.01%+375,00013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,292,103$4.59M<0.01%+886,90213F-HR/ATimelineGroup
LM Asset Management Inc.1,150,000$4.09M3.25%+260,00013F-HRTimeline
Solas Capital Management, LLC1,091,248$3.88M2.37%-340,68813F-HRTimeline
JB CAPITAL PARTNERS LP992,177$3.53M0.6%013F-HRTimeline
Bracebridge Capital, LLC924,931$3.29M1.37%013F-HRTimeline
Amitell Capital Pte Ltd864,585$3.07M2.27%-215,45713F-HRTimeline
Bain Capital Credit, LPin group Bain Capital Life Sciences In…837,212$2.98M0.94%013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC827,250$2.94M<0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC704,380$2.5M<0.01%+563,62813F-HRTimelineGroup
TCW GROUP INCin group TCW GROUP INC672,678$2.39M0.02%-446,54313F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP640,324$2.28M0.11%+75,09913F-HRTimeline
HEARTLAND ADVISORS INC600,000$2.13M0.11%+100,00013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC584,360$2.08M<0.01%+263,45813F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.578,460$2.05M<0.01%new13F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding573,476$2.04M+338,450Timeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA533,022$1.9M<0.01%+429,16213F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co510,153$1.81M<0.01%+118,72213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP500,074$1.78M<0.01%+68,34913F-HRTimelineGroup
Ewing Morris & Co. Investment Partners …490,000$1.74M0.74%+100,00013F-HRTimeline
Cubist Systematic Strategies, LLC464,682$1.65M0.02%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…380,598$1.35M<0.01%-17,43913F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC357,726$1.27M0.02%new13F-HR/ATimelineGroup
NewGen Asset Management Ltd246,097$1.03M0.64%-886,81213F-HRTimeline
GENERAL AMERICAN INVESTORS CO INC280,136$996K0.06%-535,92013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC278,955$992K0.01%new13F-HRTimelineGroup
Senvest Management, LLC275,089$978K0.03%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/272,005$967K<0.01%+75,64113F-HR/ATimelineGroup
CenterBook Partners LP234,317$833K0.04%-53,27313F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC216,333$769K<0.01%+158,93313F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC215,446$766K<0.01%-264,55313F-HRTimelineGroup
HITE Hedge Asset Management LLC214,556$763K0.04%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP212,331$755K0.02%013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.201,100$715K<0.01%new13F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/190,117$677K<0.01%+102,46013F-HRTimelineGroup
Quantbot Technologies LP188,597$670K0.02%+105,42813F-HRTimeline
Swiss National Bank164,107$583K<0.01%-7,40013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP158,682$564K<0.01%+62,59013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding147,196$523K-24,462Timeline
Quinn Opportunity Partners LLC142,336$506K0.04%-34,00613F-HRTimeline
SIG North Trading, ULC141,917$505K0.08%new13F-HRTimeline
Orion Resource Partners LPin group Orion Resource Partners LP139,406$495K0.18%+86,21313F-HRTimelineGroup
Trexquant Investment LP139,162$495K0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd124,077$441K0.02%new13F-HRTimelineGroup
TD Asset Management Inc116,236$413K<0.01%-1,247,06413F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS114,001$405K<0.01%+112,80713F-HRTimelineGroup
Summit Financial, LLC110,333$393K0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc88,583$362K<0.01%013F-HRTimelineGroup
ExodusPoint Capital Management, LP96,263$342K<0.01%new13F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC76,477$271K<0.01%013F-HRTimelineGroup
Centiva Capital, LP71,755$255K0.02%new13F-HRTimeline
Nuveen, LLCin group TIAA69,751$248K<0.01%013F-HRTimelineGroup
CIBC WORLD MARKET INC.66,315$236K<0.01%-33,03013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC63,813$227K<0.01%-50,17613F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC62,700$221K<0.01%+59,70013F-HRTimelineGroup
IMC-Chicago, LLC62,157$221K<0.01%-53,07413F-HRTimeline
PDT Partners, LLC59,990$213K0.01%+15,81813F-HRTimeline
LPL Financial LLC58,894$209K<0.01%+13,26813F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…58,594$208K<0.01%-52113F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…55,000$202K<0.01%-1,00013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC54,783$195K<0.01%new13F-HRTimelineGroup
MACKENZIE FINANCIAL CORP54,363$193K<0.01%+6,08613F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp53,423$190K<0.01%-14,56713F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.52,298$186K<0.01%+7,84713F-HRTimelineGroup
DekaBank Deutsche Girozentrale21,188$178K<0.01%013F-HRTimeline
OXFORD ASSET MANAGEMENT LLP47,595$169K0.06%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD46,000$164K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC43,303$154K<0.01%-18,39313F-HRTimelineGroup
Terril Brothers, Inc.41,500$148K0.04%-8,00013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC38,625$137K<0.01%+52613F-HRTimelineGroup
Phoenix Financial Ltd.in group Phoenix Financial Ltd.35,714$127K<0.01%013F-HR/ATimelineGroup
Claret Asset Management Corp30,375$108K0.01%013F-HRTimeline
GROUP ONE TRADING LLC29,623$105K<0.01%-83,45713F-HRTimeline
Graham Capital Management, L.P.28,741$102K<0.01%+10,78913F-HRTimeline
NewEdge Advisors, LLC28,299$101K<0.01%+3,40013F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC26,758$95.1K0.01%new13F-HRTimeline
Net Worth Advisory Group24,397$86.7K0.03%-1,56313F-HRTimeline
Assenagon Asset Management S.A.22,682$80.6K<0.01%new13F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…22,089$78.5K<0.01%new13F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…21,773$77.4K<0.01%013F-HRTimeline
Olympiad Research LP20,758$73.8K0.1%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…19,329$68.7K<0.01%013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP15,000$53.3K<0.01%013F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…13,901$49.4K<0.01%013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.11,941$42.5K<0.01%-23913F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK10,000$41K<0.01%013F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC11,277$39.9K<0.01%-1,37813F-HRTimelineGroup
EJF Capital LP11,000$39.1K0.02%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC10,855$38.6K<0.01%+8513F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/10,636$37.4K<0.01%-10,50813F-HRTimelineGroup
Federation des caisses Desjardins du Qu…8,860$31.4K<0.01%-304,30913F-HRTimeline
Aviso Financial Inc.6,649$23.6K<0.01%+31113F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\6,626$23.6K<0.01%013F-HRTimelineGroup
Caitong International Asset Management …5,695$20.2K0.01%new13F-HRTimeline
FNY Investment Advisers, LLC4,530$16K0.01%013F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.3,600$12.8K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC3,398$12.1K<0.01%-3,86913F-HRTimelineGroup
SHELL ASSET MANAGEMENT CO1,279$5K<0.01%-2,91413F-HRTimeline
Ulland Investment Advisors, LLC1,000$4K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…727$2.58K<0.01%-6,66413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN606$2.15K<0.01%-8,92413F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC369$1.31K<0.01%-18,03113F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.167$593<0.01%013F-HRTimelineGroup
Arlington Trust Co LLCin group Arlington Trust Co LLC100$356<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.52$185<0.01%+213F-HRTimeline