ASTL · Algoma Steel Group Inc. · Holdings

$4.30 +0.00 (+0.00%)

Market Cap

$459.63M

105.66M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 106

Total Value: $294,777,522

Total Shares: 83,429,352

Showing 1–100 of 122 holdings by value · page 1 of 2

Institutional Ownership Trend

19 quarters

Holder Concentration

Across 106 13F filers · Δ vs Mar 31, 2026

Top Holder

23.2%

+1.5 pts

Top 5

56.4%

−1.2 pts

Top 10

69.8%

−1.8 pts

HHI

944

Broadly held−19

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -1

Institutional value: -2.9%

Shares held: -0.5%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega MORGAN STANLEY	+1,474,639	2,958,350
Large MACKENZIE FINANCIAL CORP	+1,231,033	1,329,806
Mid Maple Rock Capital Partners Inc.	+931,000	16,861,818
Mega TWO SIGMA INVESTMENTS, LP	+771,911	1,041,811
Mid Scheer, Rowlett & Associates Investment Management Ltd.	+638,910	3,846,390

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Micro LITTLEJOHN & CO LLC	−1,927,789	1,518,714
Mid MMCAP International Inc. SPC	−1,890,884	10,954,738
Mega JANE STREET GROUP, LLC	−825,872	167,851
Mid DONALD SMITH & CO., INC.	−751,298	5,277,631
Small LM Asset Management Inc.	−749,000	1,016,000

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small BRIGHTLINE CAPITAL MANAGEMENT, LLC	1,660,000	$6,723,000
Large MARSHALL WACE, LLP	499,494	$2,022,950
Mid Jump Financial, LLC	289,675	$1,173,183
Mid Campbell & CO Investment Adviser LLC	41,049	$166,248
Small Lavaca Capital LLC	35,573	$144,070

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Solas Capital Management, LLC	1,047,454	$4,325,985
Large HRT FINANCIAL LP	467,190	$1,929,494
Mid CenterBook Partners LP	233,509	$964,392
Mid Purpose Unlimited Inc.	200,000	$826,000
Large RENAISSANCE TECHNOLOGIES LLC	117,276	$484,349

Filter: New 13 Increased 32 Reduced 41 Sold out 14 Unchanged 20

Showing 100 of 122

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Maple Rock Capital Partners Inc.

$68,290,362

23.17%

16,861,818

MMCAP International Inc. SPC

$44,366,688

15.05%

10,954,738

DONALD SMITH & CO., INC.

$21,374,405

7.25%

5,277,631

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 2	5,277,631	$21,374,405	100.0%	Defined

BlackRock, Inc.

$16,780,220

5.69%

4,143,265

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	164,778	$667,350	4.0%	Sole
BlackRock Investment Management (Australia) Ltd	6,511	$26,369	0.2%	Sole
BlackRock Asset Management Canada Ltd	20,164	$81,664	0.5%	Sole
BlackRock Investment Management, LLC	177,403	$718,482	4.3%	Sole
BLACKROCK ADVISORS LLC	2,508,848	$10,160,834	60.6%	Sole
BlackRock Fund Advisors	255,283	$1,033,896	6.2%	Sole
BlackRock Institutional Trust Company, N.A.	285,354	$1,155,683	6.9%	Sole
BlackRock Investment Management (UK) Ltd.	3,400	$13,770	0.1%	Sole
BlackRock (Luxembourg) S.A.	721,524	$2,922,172	17.4%	Sole

Scheer, Rowlett & Associates Investment Management Ltd.

$15,577,879

5.28%

3,846,390

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	3,846,390	$15,577,879	100.0%	Sole

MORGAN STANLEY

$11,981,316

4.06%

2,958,350

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	10,942	$44,315	0.4%	Defined
MORGAN STANLEY & CO. LLC	51,368	$208,040	1.7%	Defined
Morgan Stanley Canada LTD	1,064,778	$4,312,350	36.0%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	1,816,421	$7,356,505	61.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	14,841	$60,106	0.5%	Defined

AEGIS FINANCIAL CORP

$7,233,794

2.45%

1,786,122

CDC Financial, Inc.

$7,069,870

2.40%

1,745,647

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
COGHILL CLINT D	1,745,647	$7,069,870	100.0%	Defined

BRIGHTLINE CAPITAL MANAGEMENT, LLC

$6,723,000

2.28%

1,660,000

LITTLEJOHN & CO LLC

$6,150,791

2.09%

1,518,714

Connor, Clark & Lunn Investment Management Ltd.

$5,618,646

1.91%

1,387,320

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	1,387,320	$5,618,646	100.0%	Sole

MACKENZIE FINANCIAL CORP

$5,385,714

1.83%

1,329,806

Sourcerock Group LLC

$5,052,403

1.71%

1,247,507

TWO SIGMA INVESTMENTS, LP

$4,219,334

1.43%

1,041,811

LM Asset Management Inc.

$4,114,800

1.40%

1,016,000

Bracebridge Capital, LLC

$3,745,970

1.27%

924,931

JB CAPITAL PARTNERS LP

$3,532,721

1.20%

872,277

CITADEL ADVISORS LLC

$3,426,035

1.16%

845,935

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	10,816	$43,804	1.3%	Defined
Held directly	835,119	$3,382,231	98.7%	Defined

Bain Capital Credit, LP

$3,344,396

1.13%

825,777

JPMORGAN CHASE & CO

$3,281,342

1.11%

810,208

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	843	$3,414	0.1%	Defined
J.P. Morgan Securities LLC	809,365	$3,277,928	99.9%	Defined

Ewing Morris & Co. Investment Partners Ltd.

$2,925,517

0.99%

722,350

Quadrature Capital Ltd

$2,764,096

0.94%

682,493

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	682,493	$2,764,096	100.0%	Other

D. E. Shaw & Co., Inc.

$2,715,010

0.92%

670,373

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	670,373	$2,715,010	100.0%	Defined

TCW GROUP INC

$2,460,285

0.83%

607,478

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sepulveda Management LLC	607,478	$2,460,285	100.0%	Defined

Point72 Asset Management, L.P.

$2,329,661

0.79%

575,225

MARSHALL WACE, LLP

$2,022,950

0.69%

499,494

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	499,494	$2,022,950	100.0%	Other

TD Asset Management Inc

$2,018,029

0.68%

498,279

ACADIAN ASSET MANAGEMENT LLC

$1,977,185

0.67%

488,194

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	488,194	$1,977,185	100.0%	Defined

Russell Investments Group, Ltd.

$1,908,713

0.65%

471,288

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	234,225	$948,611	49.7%	Defined
Russell Investments Canada Limited	2,534	$10,262	0.5%	Defined
Russell Investments Capital, LLC	82,309	$333,351	17.5%	Defined
Russell Investments France SAS	54,816	$222,004	11.6%	Defined
Russell Investments Limited	3,195	$12,939	0.7%	Defined
Russell Investments Trust Company	94,209	$381,546	20.0%	Defined

READYSTATE ASSET MANAGEMENT LP

$1,876,073

0.64%

463,228

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,775,645

0.60%

438,431

BNP PARIBAS ARBITRAGE, SA

$1,695,953

0.58%

418,754

MILLENNIUM MANAGEMENT LLC

$1,567,115

0.53%

386,942

DIMENSIONAL FUND ADVISORS LP

$1,442,268

0.49%

356,116

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	6,164	$24,964	1.7%	Defined
DFA Australia Ltd.	3,213	$13,012	0.9%	Defined
Dimensional Ireland Ltd	40,810	$165,280	11.5%	Defined
Held directly	305,929	$1,239,012	85.9%	Sole

BARCLAYS PLC

$1,251,335

0.42%

308,972

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	304,776	$1,234,342	98.6%	Defined
BARCLAYS CAPITAL SECURITIES LTD	4,196	$16,993	1.4%	Defined

Voleon Capital Management LP

$1,244,552

0.42%

307,297

Jump Financial, LLC

$1,173,183

0.40%

289,675

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC	175	$708	0.1%	Defined
Leap GP LLC joint	289,500	$1,172,475	99.9%	Defined

BANK OF MONTREAL /CAN/

$1,168,376

0.40%

288,488

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO Asset Management Inc.	235,223	$952,653	81.5%	Defined
BMO NESBITT BURNS INC.	53,265	$215,723	18.5%	Defined

GOLDMAN SACHS GROUP INC

$1,073,225

0.36%

264,994

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	264,994	$1,073,225	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$999,135

0.34%

246,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	246,700	$999,135	100.0%	Other

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$750,465

0.25%

185,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	185,300	$750,465	100.0%	Other

ROYAL BANK OF CANADA

$604,676

0.21%

149,303

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	2,000	$8,100	1.3%	Defined
RBC Dominion Securities Inc.	143,994	$583,175	96.4%	Defined
RBC Private Counsel (USA) Inc.	3,309	$13,401	2.2%	Defined

Quinn Opportunity Partners LLC

$576,460

0.20%

142,336

SIMPLEX TRADING, LLC

$509,186

0.17%

125,725

XTX Topco Ltd

$496,781

0.17%

122,662

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	122,662	$496,781	100.0%	Defined

BANK OF AMERICA CORP /DE/

$470,780

0.16%

116,242

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	116,242	$470,780	100.0%	Defined

SIG North Trading, ULC

$447,525

0.15%

110,500

Summit Financial, LLC

$446,848

0.15%

110,333

Quantbot Technologies LP

$442,255

0.15%

109,199

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	109,199	$442,255	100.0%	Sole

ExodusPoint Capital Management, LP

$412,071

0.14%

101,746

SIG North Trading, ULC

$389,273

0.13%

96,117

Boston Partners

$359,741

0.12%

88,825

PDT Partners, LLC

$295,969

0.10%

73,079

BOOTHBAY FUND MANAGEMENT, LLC

$288,335

0.10%

71,194

SIG North Trading, ULC

$280,260

0.10%

69,200

GEODE CAPITAL MANAGEMENT, LLC

$274,828

0.09%

67,859

GSA CAPITAL PARTNERS LLP

$269,175

0.09%

66,463

LPL Financial LLC

$228,930

0.08%

56,526

Terril Brothers, Inc.

$218,700

0.07%

54,000

HSBC HOLDINGS PLC

$215,731

0.07%

53,267

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	53,267	$215,731	100.0%	Defined

JANE STREET GROUP, LLC

$213,382

0.07%

52,687

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	52,687	$213,382	100.0%	Defined

AMERICAN CENTURY COMPANIES INC

$205,740

0.07%

50,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	50,800	$205,740	100.0%	Defined

Invesco Ltd.

$170,318

0.06%

42,054

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Capital Management LLC	42,054	$170,318	100.0%	Defined

Squarepoint Ops LLC

$169,314

0.06%

41,806

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	41,806	$169,314	100.0%	Defined

Campbell & CO Investment Adviser LLC

$166,248

0.06%

41,049

CDC Financial, Inc.

$162,000

0.05%

40,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
COGHILL CLINT D	40,000	$162,000	100.0%	Defined

Phoenix Financial Ltd.

$144,641

0.05%

35,714

Lavaca Capital LLC

$144,070

0.05%

35,573

Y-Intercept (Hong Kong) Ltd

$143,973

0.05%

35,549

GROUP ONE TRADING LLC

$141,328

0.05%

34,896

PRELUDE CAPITAL MANAGEMENT, LLC

$129,118

0.04%

31,881

Claret Asset Management Corp

$123,018

0.04%

30,375

NewEdge Advisors, LLC

$112,990

0.04%

27,899

Verition Fund Management LLC

$108,552

0.04%

26,803

Olympiad Research LP

$104,230

0.04%

25,736

CIBC WORLD MARKET INC.

$102,465

0.03%

25,300

FIL Ltd

$92,777

0.03%

22,908

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Investments Canada ULC	22,908	$92,777	100.0%	Defined

Empirical Financial Services, LLC d.b.a. Empirical Wealth Management

$88,180

0.03%

21,773

Net Worth Advisory Group

$84,373

0.03%

20,833

Federation des caisses Desjardins du Quebec

$74,358

0.03%

18,360

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	18,360	$74,358	100.0%	Defined

JANE STREET GROUP, LLC

$58,320

0.02%

14,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	14,400	$58,320	100.0%	Defined

VICTORY CAPITAL MANAGEMENT INC

$45,453

0.02%

11,223

Aquatic Capital Management LLC

$45,250

0.02%

11,173

EJF Capital LP

$44,550

0.02%

11,000

SG Americas Securities, LLC

$44,088

0.01%

10,886

TORONTO DOMINION BANK

$40,500

0.01%

10,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Canada Trust Co	10,000	$40,500	100.0%	Defined

ELEMENT POINTE ADVISORS, LLC

$40,500

0.01%

10,000

UBS Group AG

$33,590

0.01%

8,294

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	8,294	$33,590	100.0%	Defined

CITIGROUP INC

$27,738

0.01%

6,849

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	6,849	$27,738	100.0%	Defined

TD Waterhouse Canada Inc.

$27,135

0.01%

6,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	6,700	$27,135	100.0%	Defined

Aviso Financial Inc.

$24,964

0.01%

6,164

ASSETMARK, INC

$10,125

0.00%

2,500

OSAIC HOLDINGS, INC.

$6,812

0.00%

1,682

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	1,682	$6,812	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$3,555

0.00%

878

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	878	$3,555	100.0%	Sole

FNY Investment Advisers, LLC

$3,361

0.00%

830

FNY Investment Advisers, LLC

$2,430

0.00%

600

Caitong International Asset Management Co., Ltd

$518

0.00%

128

Physician Wealth Advisors, Inc.

$449

0.00%

111

Arlington Trust Co LLC

$405

0.00%

100

Tower Research Capital LLC (TRC)

$315

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	78	$315	100.0%	Other

Key facts CIK 1860805 CUSIP 015658107 13F (30d) 63 filings 63 filers Visit website Investor relations