Skip to content
Disclosery

ASTL ALGOMA STL GROUP INC

Follow

COM (common), issuer CIK 1860805

98 managers (98 13F filers) reported a position in ASTL shares at 2026-03-31, 71,969,593 shares in all. 15 filers opened a position and 25 filers sold out during the quarter.

Managers
98
13F filers
98
New
15
Added
33
Reduced
31
Sold out
25
Shares held by filers
71,969,593

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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.15,930,818$65.8M2.14%+1,500,00013F-HRTimeline
MMCAP International Inc. SPCin group MMCAP12,845,622$53.1M4.58%+1,357,76113F-HRTimelineGroup
DONALD SMITH & CO., INC.in group DONALD SMITH & CO., INC.6,028,929$24.9M0.45%+167,29813F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.4,115,453$17M<0.01%-4,386,45013F-HRTimelineGroup
LITTLEJOHN & CO LLC3,446,503$14.2M13.49%013F-HRTimeline
Scheer, Rowlett & Associates Investment…3,207,480$13.2M0.95%-129,04513F-HRTimeline
AEGIS FINANCIAL CORP1,786,122$7.38M1.27%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
LM Asset Management Inc.1,765,000$7.29M4.4%+295,00013F-HRTimeline
Connor, Clark & Lunn Investment Managem…1,725,758$7.12M0.02%-539,10513F-HRTimeline
CDC Financial, Inc.1,613,749$6.66M5.52%+33,00013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,483,711$6.13M<0.01%+443,17213F-HRTimelineGroup
Sourcerock Group LLC1,306,403$5.4M0.23%new13F-HRTimeline
Solas Capital Management, LLC1,047,454$4.33M2.49%-21,89713F-HRTimeline
Bracebridge Capital, LLC924,931$3.82M0.69%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC895,566$3.7M<0.01%+193,62413F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd878,540$3.61M0.04%-139,56013F-HRTimelineGroup
JB CAPITAL PARTNERS LP872,277$3.6M0.62%013F-HRTimeline
TD Asset Management Inc841,904$3.46M<0.01%-845,51613F-HRTimeline
Bain Capital Credit, LPin group Bain Capital Life Sciences In…825,777$3.41M1.13%013F-HRTimelineGroup
TCW GROUP INCin group TCW GROUP INC768,178$3.17M0.02%+95,50013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC766,411$3.17M<0.01%+169,45113F-HRTimelineGroup
Ewing Morris & Co. Investment Partners …710,000$2.92M1.32%+97,50013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co598,919$2.46M<0.01%-103,81513F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…571,566$2.36M<0.01%+170,07613F-HRTimelineGroup
HRT FINANCIAL LP467,190$1.93M<0.01%new13F-HRTimeline
READYSTATE ASSET MANAGEMENT LP463,228$1.91M0.11%-177,09613F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP361,996$1.49M<0.01%-21,59113F-HRTimelineGroup
UBS Group AGin group UBS Group AG306,957$1.27M<0.01%-637,80713F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/272,613$1.13M<0.01%+68,69713F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.270,544$1.12M<0.01%-252,71413F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP269,900$1.11M<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC267,743$1.11M<0.01%-354,66113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC252,457$1.04M<0.01%+97,20713F-HRTimelineGroup
CenterBook Partners LP233,509$964K0.05%-165,33613F-HRTimeline
ExodusPoint Capital Management, LP229,563$948K0.01%+203,22313F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO230,817$914K<0.01%new13F-HR/ATimelineGroup
XTX Topco Ltdin group XTX Topco Ltd182,347$753K0.01%+38,64313F-HRTimelineGroup
SIG North Trading, ULC171,817$710K0.14%+69,90013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC171,556$709K<0.01%+125,31013F-HRTimelineGroup
Quantbot Technologies LP157,928$652K0.03%+30,08113F-HRTimeline
SIMPLEX TRADING, LLC154,905$640K0.02%+80,77713F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA146,821$607K<0.01%+1,22513F-HRTimelineGroup
Quinn Opportunity Partners LLC142,336$588K0.03%013F-HRTimeline
Voleon Capital Management LP130,919$541K0.01%+90,83313F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC117,276$484K<0.01%new13F-HRTimeline
Summit Financial, LLC110,333$456K0.01%013F-HRTimeline
Assenagon Asset Management S.A.99,107$409K<0.01%new13F-HRTimeline
MACKENZIE FINANCIAL CORP98,773$408K<0.01%+3,99713F-HRTimeline
AYAL Capital Advisors Ltd95,000$392K0.2%new13F-HRTimeline
ARISTEIA CAPITAL, L.L.C.91,423$378K0.01%-28,83713F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp87,067$360K<0.01%+18,46913F-HRTimelineGroup
GROUP ONE TRADING LLC85,656$354K0.01%-17,53113F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.73,916$307K<0.01%new13F-HRTimelineGroup
PDT Partners, LLC70,304$290K0.02%-8,50013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS65,417$270K<0.01%-48,68413F-HRTimelineGroup
FNY Investment Advisers, LLC65,288$269K0.12%-20,70513F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC64,174$265K<0.01%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC63,813$264K<0.01%013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/62,393$258K<0.01%-459,96413F-HRTimelineGroup
LPL Financial LLC59,794$247K<0.01%-2,40013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.59,150$244K<0.01%-7,56313F-HRTimelineGroup
Terril Brothers, Inc.58,000$240K0.07%013F-HRTimeline
GSA CAPITAL PARTNERS LLP54,983$227K0.01%+12,49413F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC54,379$222K<0.01%+15,62513F-HRTimelineGroup
Aquatic Capital Management LLC47,257$195K0.01%+38,44813F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC45,070$186K<0.01%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC41,076$169K<0.01%-28,09613F-HRTimelineGroup
Phoenix Financial Ltd.in group Phoenix Financial Ltd.35,714$147K<0.01%013F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC35,367$146K0.02%+25,09313F-HRTimeline
FIL Ltdin group FIL Ltd30,961$128K<0.01%+10,39113F-HRTimelineGroup
Claret Asset Management Corp30,375$125K0.01%013F-HRTimeline
NewEdge Advisors, LLC28,299$117K<0.01%013F-HR/ATimeline
Verition Fund Management LLC26,803$111K<0.01%-1,221,99913F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK26,178$108K<0.01%+16,11813F-HRTimelineGroup
CIBC WORLD MARKET INC.25,551$106K<0.01%-6,87413F-HRTimeline
Net Worth Advisory Group22,388$92.5K0.02%-1,25513F-HRTimeline
Empirical Financial Services, LLC d.b.a…21,773$89.9K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…18,360$75K<0.01%+50013F-HRTimeline
Caption Management, LLC17,299$71.4K<0.01%+9,84313F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…15,390$63.6K<0.01%-48,99013F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP15,000$62K<0.01%013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC14,800$60K<0.01%-4,60013F-HRTimelineGroup
Scientech Research LLC13,748$56.8K0.05%new13F-HRTimeline
Schonfeld Strategic Advisors LLC13,188$54.5K<0.01%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management11,517$47.6K<0.01%new13F-HRTimelineGroup
EJF Capital LP11,000$45.4K0.03%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC10,807$44.6K<0.01%-27213F-HRTimeline
ELEMENT POINTE ADVISORS, LLC10,000$41.3K0.01%013F-HRTimeline
Aviso Financial Inc.6,033$24.9K<0.01%-52613F-HRTimeline
TD Waterhouse Canada Inc.4,700$19.1K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,855$15.9K<0.01%+1,51813F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC3,236$13.3K<0.01%-3,88413F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC2,500$10.3K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,683$6.95K<0.01%+1,51613F-HRTimelineGroup
Ulland Investment Advisors, LLC1,000$4K<0.01%013F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC100$413<0.01%013F-HRTimelineGroup
Basepoint Wealth LLC51$212<0.01%013F-HRTimeline
SBI Securities Co., Ltd.51$211<0.01%-5013F-HRTimeline