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Disclosery

ASTL ALGOMA STL GROUP INC

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COM (common), issuer CIK 1860805

108 managers (109 13F filers) reported a position in ASTL shares at 2025-12-31, 83,137,392 shares in all. 23 filers opened a position and 30 filers sold out during the quarter.

Managers
108
13F filers
109
New
23
Added
39
Reduced
26
Sold out
30
Shares held by filers
83,137,392

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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.14,430,818$59.2M1.95%+4,000,00013F-HRTimeline
MMCAP International Inc. SPCin group MMCAP11,487,861$47.1M4.71%+3,409,03313F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.8,501,903$34.9M<0.01%+1,168,79913F-HRTimelineGroup
DONALD SMITH & CO., INC.in group DONALD SMITH & CO., INC.5,861,631$24M0.45%-75,38913F-HRTimelineGroup
INVESCO SENIOR SECURED MANAGEMENT INC /…3,233,117$18.3M44.65%013F-HRTimeline
LITTLEJOHN & CO LLC3,446,503$14.1M7.36%+752,61613F-HRTimeline
Scheer, Rowlett & Associates Investment…3,336,525$13.7M0.94%-492,40413F-HRTimeline
GOLDENTREE ASSET MANAGEMENT LPin group GOLDENTREE ASSET MANAGEMENT LP2,493,548$10.2M0.55%013F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…2,264,863$9.32M0.02%new13F-HRTimeline
FMR LLCin group FMR LLC2,208,646$9.06M<0.01%-6,00013F-HRTimelineGroup
AEGIS FINANCIAL CORP1,786,122$7.32M1.75%013F-HRTimeline
TD Asset Management Inc1,687,420$6.96M0.01%+1,571,18413F-HRTimeline
CDC Financial, Inc.1,580,749$6.48M5.69%13F-HRTimeline
LM Asset Management Inc.1,470,000$6.03M4.82%+320,00013F-HRTimeline
Verition Fund Management LLC1,248,802$5.12M0.03%new13F-HRTimeline
Solas Capital Management, LLC1,069,351$4.38M2.49%-21,89713F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,040,539$4.27M<0.01%-251,56413F-HR/ATimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd1,018,100$4.2M0.04%-511,00013F-HRTimelineGroup
UBS Group AGin group UBS Group AG944,764$3.87M<0.01%+371,28813F-HRTimelineGroup
Bracebridge Capital, LLC924,931$3.79M1.38%013F-HRTimeline
JB CAPITAL PARTNERS LP872,277$3.58M0.62%-119,90013F-HRTimeline
Bain Capital Credit, LPin group Bain Capital Life Sciences In…825,777$3.39M0.89%-11,43513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co702,734$2.9M<0.01%+192,58113F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC701,942$2.88M<0.01%-125,30813F-HRTimelineGroup
TCW GROUP INCin group TCW GROUP INC672,678$2.76M0.02%013F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP640,324$2.63M0.12%013F-HRTimeline
Ewing Morris & Co. Investment Partners …612,500$2.56M1.11%+122,50013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC622,404$2.55M<0.01%+38,04413F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC596,960$2.45M<0.01%-107,42013F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding553,608$2.27M+274,653Timeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.523,258$2.15M<0.01%-55,20213F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/522,357$2.14M<0.01%+250,35213F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…401,490$1.65M<0.01%+20,89213F-HRTimelineGroup
CenterBook Partners LP398,845$1.64M0.08%+164,52813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP383,587$1.57M<0.01%-116,48713F-HRTimelineGroup
Orion Resource Partners LPin group Orion Resource Partners LP381,728$1.57M0.77%+242,32213F-HRTimelineGroup
Prescott Group Capital Management, L.L.…231,219$948K0.09%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/203,916$839K<0.01%+13,79913F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC155,250$637K<0.01%-60,19613F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA145,596$597K<0.01%-387,42613F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd143,704$589K0.02%+19,62713F-HRTimelineGroup
Quinn Opportunity Partners LLC142,336$584K0.03%013F-HRTimeline
Quantbot Technologies LP127,847$524K0.02%-60,75013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.120,260$493K0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS114,101$468K<0.01%+10013F-HRTimelineGroup
Summit Financial, LLC110,333$452K0.01%013F-HRTimeline
GROUP ONE TRADING LLC103,187$423K0.01%+73,56413F-HRTimeline
SIG North Trading, ULC101,917$418K0.07%-40,00013F-HRTimeline
MACKENZIE FINANCIAL CORP94,776$384K<0.01%+40,41313F-HRTimeline
FNY Investment Advisers, LLC85,993$352K0.1%+81,46313F-HRTimeline
Senvest Management, LLC85,789$352K0.01%-189,30013F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD84,567$347K<0.01%+38,56713F-HRTimelineGroup
PDT Partners, LLC78,804$323K0.02%+18,81413F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…75,708$310K0.01%+53,61913F-HRTimelineGroup
SIMPLEX TRADING, LLC74,128$304K0.01%new13F-HRTimeline
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP73,600$302K<0.01%new13F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC72,143$296K<0.01%+17,36013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC69,172$285K<0.01%+30,54713F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp68,598$281K<0.01%+15,17513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.66,713$274K<0.01%+14,41513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…64,380$264K<0.01%-82,81613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC63,813$262K<0.01%013F-HRTimelineGroup
LPL Financial LLC62,194$255K<0.01%+3,30013F-HRTimeline
Terril Brothers, Inc.58,000$238K0.06%+16,50013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…55,000$228K<0.01%013F-HRTimeline
PenderFund Capital Management Ltd.50,000$206K0.03%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC46,246$190K<0.01%+45,87713F-HRTimelineGroup
DekaBank Deutsche Girozentrale21,188$180K<0.01%013F-HRTimeline
GSA CAPITAL PARTNERS LLP42,489$174K0.01%new13F-HRTimeline
Voleon Capital Management LP40,086$164K<0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC38,754$159K<0.01%+27,47713F-HR/ATimelineGroup
Phoenix Financial Ltd.in group Phoenix Financial Ltd.35,714$146K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc33,330$137K<0.01%-55,25313F-HRTimelineGroup
PharVision Advisers, LLC32,839$135K0.07%new13F-HRTimeline
CIBC WORLD MARKET INC.32,425$133K<0.01%-33,89013F-HRTimeline
Claret Asset Management Corp30,375$125K0.01%013F-HRTimeline
NewEdge Advisors, LLC28,299$116K<0.01%013F-HRTimeline
ExodusPoint Capital Management, LP26,340$108K<0.01%-69,92313F-HRTimeline
Clear Harbor Asset Management, LLC26,000$107K0.01%new13F-HRTimeline
Net Worth Advisory Group23,643$96.9K0.02%-75413F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE21,822$89.9K<0.01%new13F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…21,773$89.3K<0.01%013F-HRTimeline
FIL Ltdin group FIL Ltd20,570$84.7K<0.01%new13F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC19,400$79K<0.01%-43,30013F-HRTimelineGroup
Federation des caisses Desjardins du Qu…17,860$73.2K<0.01%+9,00013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/17,575$71.6K<0.01%+6,93913F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP15,000$61.5K<0.01%013F-HR/ATimelineGroup
Jump Financial, LLCin group Jump Financial, LLC14,201$58.2K<0.01%-343,52513F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC11,079$45.4K<0.01%+22413F-HRTimeline
EJF Capital LP11,000$45.1K0.03%013F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding10,798$44.3K-65,679Timeline
TWO SIGMA SECURITIES, LLC10,274$42.1K0.01%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK10,060$41.2K<0.01%+6013F-HRTimelineGroup
ELEMENT POINTE ADVISORS, LLC10,000$41K0.01%new13F-HRTimeline
Aquatic Capital Management LLC8,809$36.1K<0.01%new13F-HRTimeline
Caption Management, LLC7,456$30.6K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC7,120$29.3K<0.01%+3,72213F-HRTimelineGroup
Aviso Financial Inc.6,559$27K<0.01%-9013F-HRTimeline
Quarry LP2,426$9.95K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,337$9.58K<0.01%+1,61013F-HRTimelineGroup
Ulland Investment Advisors, LLC1,000$4K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…243$996<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.167$684<0.01%013F-HRTimelineGroup
Caitong International Asset Management …166$681<0.01%-5,52913F-HR/ATimeline
SBI Securities Co., Ltd.101$414<0.01%+4913F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC100$410<0.01%013F-HRTimelineGroup
Basepoint Wealth LLC51$210<0.01%new13F-HRTimeline
Larson Financial Group LLC11$45<0.01%new13F-HRTimeline