Vault-13

ALGOMA STL GROUP INC ASTL

COM · Common Stock · CUSIP 015658107 · ISIN CA0156581070

136 institutional holders +2 vs Q3 2024
81,982,93782.0m shares reported held*
78.2% of all shares outstanding*
$801.8mreported value*
20 new 42 added 37 reduced 19 sold out net bought ≈ $33.7m (+3.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($558.3k this quarter). Holder counts are more reliable. Shares outstanding: 104.9m as of 2024-12-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.78. Options: 14 managers hold calls ($23.4m notional), 9 hold puts ($4.7m).

Trends to Q4 2024

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 114Q4 22: 120Q1 23: 117Q2 23: 118Q3 23: 112Q4 23: 121Q1 24: 109Q2 24: 119Q3 24: 134Q4 24: 136136Q3 22Q1 23Q3 23Q1 24Q3 24Q4 24
Numbers
QuarterHolders
Q3 2022114
Q4 2022120
Q1 2023117
Q2 2023118
Q3 2023112
Q4 2023121
Q1 2024109
Q2 2024119
Q3 2024134
Q4 2024136

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q1 23: 70 bought or addedQ1 23: 51 cut or sold outQ2 23: 53 bought or addedQ2 23: 52 cut or sold outQ2 23Q3 23: 44 bought or addedQ3 23: 57 cut or sold outQ4 23: 59 bought or addedQ4 23: 51 cut or sold outQ4 23Q1 24: 41 bought or addedQ1 24: 63 cut or sold outQ2 24: 52 bought or addedQ2 24: 46 cut or sold outQ2 24Q3 24: 63 bought or addedQ3 24: 56 cut or sold outQ4 24: 62 bought or addedQ4 24: 56 cut or sold outQ4 24
Numbers
QuarterBought or addedCut or sold out
Q1 20237051
Q2 20235352
Q3 20234457
Q4 20235951
Q1 20244163
Q2 20245246
Q3 20246356
Q4 20246256

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10m$20m$30mQ1 24 calls: $13.3mQ1 24 puts: $5.0mQ1 24P/C 0.37Q2 24 calls: $8.8mQ2 24 puts: $5.1mQ2 24P/C 0.59Q3 24 calls: $22.9mQ3 24 puts: $7.3mQ3 24P/C 0.32Q4 24 calls: $23.4mQ4 24 puts: $4.7mQ4 24P/C 0.20
Numbers
QuarterCallsPutsP/C
Q1 2024$13.3m$5.0m0.37
Q2 2024$8.8m$5.1m0.59
Q3 2024$22.9m$7.3m0.32
Q4 2024$23.4m$4.7m0.20

Biggest buyers

Woodline Partners LP Added +1,057,517+1.1m
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Added +966,976+967.0k
Empyrean Capital Partners, LP New +922,000+922.0k
FMR LLC Added +692,110+692.1k
MACKENZIE FINANCIAL CORP New +599,322+599.3k
BlackRock, Inc. Added +491,824+491.8k
MORGAN STANLEY Added +437,490+437.5k
AYAL Capital Advisors Ltd Added +336,784+336.8k
ADAGE CAPITAL PARTNERS GP, L.L.C. Added +200,000+200.0k
Yaupon Capital Management LP Added +188,695+188.7k

Biggest sellers

MSD Partners, L.P. Sold out -810,000-810.0k
Invenomic Capital Management LP Sold out -636,917-636.9k
Bain Capital Credit, LP Reduced -595,156-595.2k
JPMORGAN CHASE & CO Reduced -531,144-531.1k
MMCAP International Inc. SPC Reduced -377,325-377.3k
TCW GROUP INC Reduced -301,614-301.6k
Thomist Capital Management, LP Reduced -137,580-137.6k
Consolidated Portfolio Review Corp Sold out -135,071-135.1k
INTACT INVESTMENT MANAGEMENT INC. Reduced -123,700-123.7k
TOWLE & CO Reduced -98,463-98.5k

Biggest calls

MILLENNIUM MANAGEMENT LLC Added $4.9m500.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $3.1m316.9k shares
Caption Management, LLC Added $3.0m303.4k shares
GROUP ONE TRADING LLC Reduced $2.8m286.1k shares
JANE STREET GROUP, LLC Added $2.5m259.6k shares
SIMPLEX TRADING, LLC Added $2.1m212.3k shares
ROYAL BANK OF CANADA Unchanged $1.5m157.9k shares
CITADEL ADVISORS LLC Added $1.3m133.5k shares
Jefferies Financial Group Inc. New $1.0m105.0k shares
IMC-Chicago, LLC Reduced $416.6k42.6k shares

Biggest puts

CITADEL ADVISORS LLC Reduced $1.3m133.4k shares
WOLVERINE ASSET MANAGEMENT LLC Unchanged $1.0m105.6k shares
JANE STREET GROUP, LLC Unchanged $984.8k100.7k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $796.1k81.4k shares
SIMPLEX TRADING, LLC Reduced $309.0k31.6k shares
WOLVERINE TRADING, LLC Added $176.0k18.2k shares
SIG North Trading, ULC New $102.7k10.5k shares
GROUP ONE TRADING LLC Reduced $978100 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Maple Rock Capital Partners Inc. 13G · institution +1.8 pts · filed 2026-05-15 15.1% +1.8 pts 15.9m≈ $64.5m 2026-05-15
MMCAP International Inc. SPC 13G · passive investor -1.8 pts · filed 2026-08-14 10.4% -1.8 pts 11.0m≈ $44.4m 2026-08-14
Stoney Lonesome HF LP 13G · passive investor +0.2 pts · filed 2025-08-14 5.4% +0.2 pts 5.9m≈ $23.7m 2025-08-14
DONALD SMITH & CO., INC. 13G · institution -0.8 pts · filed 2026-08-11 5.0% -0.8 pts 5.3m≈ $21.4m 2026-08-11

Insider purchases and sales in Q4 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q4 2024.

Holders, Q4 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 DONALD SMITH & CO., INC. 1.89% of their portfolio NEW YORK, NY 8,067,6038.1m $78.9m $78.9m 1.89% Added +4.7k +4,736
2 MMCAP International Inc. SPC 9.74% of their portfolio GRAND CAYMAN, E9 6,620,0036.6m $64.7m $64.7m 9.74% Reduced -377.3k -377,325
3 Maple Rock Capital Partners Inc. 4.33% of their portfolio Toronto, A6 6,092,0916.1m $59.6m $59.6m 4.33% Unchanged
4 BlackRock, Inc. 0.00% of their portfolio New York, NY 5,583,3345.6m $54.6m $54.6m 0.00% Added +491.8k +491,824
5 FMR LLC 0.00% of their portfolio BOSTON, MA 4,211,9134.2m $41.2m $41.2m 0.00% Added +692.1k +692,110
6 MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio NEW YORK, NY 3,950,8984.0m $38.6m $38.6m 0.03% Added +56.9k +56,903
7 CONTRARIAN CAPITAL MANAGEMENT, L.L.C. 11.83% of their portfolio Greenwich, CT 3,572,0183.6m $34.9m $34.9m 11.83% Reduced -51.2k -51,180
8 Thomist Capital Management, LP 10.89% of their portfolio Houston, TX 3,497,5313.5m $33.8m $33.8m 10.89% Reduced -137.6k -137,580
9 INVESCO SENIOR SECURED MANAGEMENT INC /ADV 30.35% of their portfolio NEW YORK, NY 3,233,1173.2m $31.6m $31.6m 30.35% Unchanged
10 Woodline Partners LP 0.19% of their portfolio San Francisco, CA 2,844,4392.8m $27.8m $27.8m 0.19% Added +1.1m +1,057,517
11 GOLDENTREE ASSET MANAGEMENT LP 1.87% of their portfolio NEW YORK, NY 2,493,5482.5m $24.4m $24.4m 1.87% Unchanged
12 Scheer, Rowlett & Associates Investment Management Ltd. 1.56% of their portfolio TORONTO, A6 2,179,3622.2m $21.3m $21.3m 1.56% Added +22.0k +22,049
13 TOWLE & CO 3.11% of their portfolio DENVER, CO 1,850,1981.9m $18.1m $18.1m 3.11% Reduced -98.5k -98,463
14 TCW GROUP INC 0.13% of their portfolio LOS ANGELES, CA 1,588,6211.6m $15.5m $15.5m 0.13% Reduced -301.6k -301,614
15 LITTLEJOHN & CO LLC 7.37% of their portfolio GREENWICH, CT 1,480,5571.5m $14.5m $14.5m 7.37% Added +95.1k +95,148
16 AEGIS FINANCIAL CORP 12.30% of their portfolio MC LEAN, VA 1,459,9031.5m $14.3m $14.3m 12.30% Unchanged
17 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio BOSTON, MA 1,317,0831.3m $12.9m $12.9m 0.01% Added +967.0k +966,976
18 J. Goldman & Co LP 0.42% of their portfolio NEW YORK, NY 1,226,3751.2m $12.0m $12.0m 0.42% Added +17.8k +17,802
19 INTACT INVESTMENT MANAGEMENT INC. 0.40% of their portfolio MONTREAL, A8 1,174,9001.2m $11.5m $11.5m 0.40% Reduced -123.7k -123,700
20 Yaupon Capital Management LP 0.67% of their portfolio NEW YORK, NY 1,084,6011.1m $10.6m $10.6m 0.67% Added +188.7k +188,695
21 Solas Capital Management, LLC 6.89% of their portfolio DARIEN, CT 1,060,6461.1m $10.4m $10.4m 6.89% Added +70.0k +70,000
22 JB CAPITAL PARTNERS LP 1.87% of their portfolio Armonk, NY 992,177992.2k $9.7m $9.7m 1.87% Unchanged
23 AYAL Capital Advisors Ltd 4.72% of their portfolio Toronto, A6 949,284949.3k $9.3m $9.3m 4.72% Added +336.8k +336,784
24 Bracebridge Capital, LLC 0.89% of their portfolio BOSTON, MA 924,931924.9k $9.0m $9.0m 0.89% Unchanged
25 Empyrean Capital Partners, LP 0.45% of their portfolio LOS ANGELES, CA 922,000922.0k $9.0m $9.0m 0.45% New
26 Bain Capital Credit, LP 1.82% of their portfolio Boston, MA 837,212837.2k $8.2m $8.2m 1.82% Reduced -595.2k -595,156
27 GENERAL AMERICAN INVESTORS CO INC 0.57% of their portfolio NEW YORK, NY 816,056816.1k $8.0m $8.0m 0.57% Unchanged
28 MACKENZIE FINANCIAL CORP 0.00% of their portfolio TORONTO ONTARIO, A6 599,322599.3k $5.8m $5.8m 0.00% New
29 NewGen Asset Management Ltd 5.97% of their portfolio TORONTO, A6 578,900578.9k $5.7m $5.7m 5.97% Added +50.0k +50,000
30 AMH Equity Ltd 5.27% of their portfolio Great Neck, NY 525,000525.0k $5.1m $5.1m 5.27% Reduced -28.2k -28,175
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 518,252518.3k $5.1m $5.1m 0.00% Added +437.5k +437,490
32 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio Boston, MA 500,000500.0k $4.9m $4.9m 0.01% Added +200.0k +200,000
33 Wolf Hill Capital Management, LP 0.39% of their portfolio GREENWICH, CT 498,340498.3k $4.9m $4.9m 0.39% Unchanged
34 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 440,360440.4k $4.3m $4.3m 0.00% Added +169.8k +169,765
35 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 430,969431.0k $4.2m $4.2m 0.01% Reduced -15.8k -15,817
36 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 411,500411.5k $4.0m $4.0m 0.00% Reduced -38.2k -38,207
37 CenterBook Partners LP 0.24% of their portfolio GREENWICH, CT 403,869403.9k $3.9m $3.9m 0.24% Added +105.0k +104,981
38 Sonic GP LLC 8.62% of their portfolio HONOLULU, HI 400,000400.0k $3.9m $3.9m 8.62% Unchanged
39 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 329,461329.5k $3.2m $3.2m 0.00% Added +14.4k +14,379
40 CastleKnight Management LP 0.28% of their portfolio New York, NY 262,000262.0k $2.6m $2.6m 0.28% Unchanged
41 Walleye Capital LLC 0.02% of their portfolio NEW YORK, NY 224,760224.8k $2.2m $2.2m 0.02% Added +170.5k +170,513
42 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 221,869221.9k $2.2m $2.2m 0.00% Added +17.3k +17,279
43 HEARTLAND ADVISORS INC 0.11% of their portfolio MILWAUKEE, WI 200,000200.0k $2.0m $2.0m 0.11% Added +100.0k +100,000
44 Swiss National Bank 0.00% of their portfolio ZURICH, V8 185,207185.2k $1.8m $1.8m 0.00% Reduced -9.3k -9,300
45 Bastion Asset Management Inc. 1.25% of their portfolio Montreal, Z4 184,256184.3k $1.9m $1.9m 1.25% First filing
46 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 183,590183.6k $1.8m $1.8m 0.00% Reduced -531.1k -531,144
47 Waratah Capital Advisors Ltd. 0.10% of their portfolio TORONTO, A6 182,242182.2k $1.8m $1.8m 0.10% Added +132.2k +132,242
48 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 172,428172.4k $1.7m $1.7m 0.00% Added +5.3k +5,296
49 CIBC WORLD MARKET INC. 0.00% of their portfolio TORONTO, A6 169,788169.8k $1.7m $1.7m 0.00% Reduced -5.2k -5,166
50 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 167,938167.9k $1.6m $1.6m 0.00% New
51 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 162,559162.6k $1.6m $1.6m 0.00% Reduced -118 -118
52 Ewing Morris & Co. Investment Partners Ltd. 0.78% of their portfolio TORONTO, Z4 160,000160.0k $2.3m $2.3m 0.78% Unchanged
53 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 152,846152.8k $1.5m $1.5m 0.00% Added +2.0k +1,985
54 Hartree Partners, LP 0.56% of their portfolio NEW YORK, NY 152,751152.8k $1.5m $1.5m 0.56% Added +47.0k +46,984
55 ROBOTTI ROBERT 0.26% of their portfolio NEW YORK, NY 150,000150.0k $1.5m $1.5m 0.26% Unchanged
56 Mutual Advisors, LLC 0.04% of their portfolio OMAHA, NE 146,802146.8k $1.2m $1.2m 0.04% Unchanged
57 PCJ Investment Counsel Ltd. 0.48% of their portfolio TORONTO, A6 144,430144.4k $1.4m $1.4m 0.48% Reduced -39.1k -39,070
58 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 130,592130.6k $1.3m $1.3m 0.00% Added +71.8k +71,765
59 UBS Group AG 0.00% of their portfolio ZURICH, V8 130,211130.2k $1.3m $1.3m 0.00% Added +118.6k +118,587
60 Assenagon Asset Management S.A. 0.00% of their portfolio SENNINGERBERG, N4 127,592127.6k $1.2m $1.2m 0.00% New
61 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 125,417125.4k $1.2m $1.2m 0.00% Added +62.0k +61,979
62 CIBC Asset Management Inc 0.00% of their portfolio TORONTO, Z4 118,602118.6k $1.2m $1.2m 0.00% Added +17.0k +17,035
63 GROUP ONE TRADING LLC 0.04% of their portfolio CHICAGO, IL 108,543108.5k $1.1m $1.1m 0.04% New
64 VAN ECK ASSOCIATES CORP 0.00% of their portfolio NEW YORK, NY 103,555103.6k $1.0m $1.0m 0.00% Added +3.9k +3,944
65 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 99,48499.5k $973.0k $973.0k 0.00% Reduced -44.4k -44,443
66 HITE Hedge Asset Management LLC 0.07% of their portfolio BRAINTREE, MA 92,64692.6k $906.1k $906.1k 0.07% Unchanged
67 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 90,69690.7k $887.0k $887.0k 0.00% Reduced -580 -580
68 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 89,37489.4k $874.1k $874.1k 0.00% Added +9.0k +8,974
69 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 85,59185.6k $837.0k $837.0k 0.00% Added +55.3k +55,287
70 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 82,05782.1k $804.8k $804.8k 0.00% Added +907 +907
71 Legal & General Group Plc 0.00% of their portfolio London, X0 80,74580.7k $790.5k $790.5k 0.00% Added +3.7k +3,666
72 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 76,47776.5k $749.1k $749.1k 0.00% Unchanged
73 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 73,66173.7k $720.4k $720.4k 0.00% Unchanged
74 Marex Group Ltd 0.01% of their portfolio London, X0 72,16772.2k $705.8k $705.8k 0.01% Unchanged
75 OnyxPoint Global Management LP 0.33% of their portfolio NEW YORK, NY 72,16572.2k $705.8k $705.8k 0.33% New
76 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 70,37870.4k $689.0k $689.0k 0.00% Unchanged
77 Boston Partners 0.00% of their portfolio BOSTON, MA 70,31670.3k $687.7k $687.7k 0.00% Reduced -96.7k -96,661
78 Weiss Asset Management LP 0.01% of their portfolio BOSTON, MA 65,00065.0k $635.7k $635.7k 0.01% Unchanged
79 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio PLYMOUTH, MN 55,00055.0k $537.9k $537.9k 0.00% Unchanged
80 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 50,63650.6k $495.2k $495.2k 0.00% Reduced -3.2k -3,156
81 Grantham, Mayo, Van Otterloo & Co. LLC 0.00% of their portfolio Boston, MA 48,68448.7k $476.6k $476.6k 0.00% Unchanged
82 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 47,19747.2k $462.1k $462.1k 0.00% New
83 PDT Partners, LLC 0.04% of their portfolio New York, NY 45,87545.9k $448.7k $448.7k 0.04% Reduced -34.5k -34,462
84 Campbell & CO Investment Adviser LLC 0.03% of their portfolio BALTIMORE, MD 44,69244.7k $437.1k $437.1k 0.03% New
85 WOLVERINE TRADING, LLC 0.01% of their portfolio CHICAGO, IL 43,26543.3k $418.4k $418.4k 0.01% Added +12.5k +12,475
86 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 0.00% of their portfolio VICTORIA, A1 43,07643.1k $421.4k $421.4k 0.00% Reduced -3.4k -3,410
87 NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio MONTREAL, A8 42,16542.2k $413.4k $413.4k 0.00% Added +10.1k +10,065
88 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 39,99740.0k $391.2k $391.2k 0.00% New
89 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 38,10038.1k $372.6k $372.6k 0.00% Unchanged
90 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 36,60036.6k $357.9k $357.9k 0.00% Added +10.8k +10,781
91 GSA CAPITAL PARTNERS LLP 0.03% of their portfolio LONDON, X0 35,86935.9k $351.0k $351.0k 0.03% Reduced -8.9k -8,888
92 Phoenix Financial Ltd. 0.00% of their portfolio Givatayim, L3 35,71435.7k $349.3k $349.3k 0.00% Unchanged
93 SIG North Trading, ULC 0.08% of their portfolio Bala Cynwyd, PA 35,52835.5k $347.5k $347.5k 0.08% Reduced -8.2k -8,174
94 GAMCO INVESTORS, INC. ET AL 0.00% of their portfolio GREENWICH, CT 32,67532.7k $319.6k $319.6k 0.00% Added +1.4k +1,350
95 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 31,22131.2k $305.3k $305.3k 0.00% Reduced -2.4k -2,400
96 Caption Management, LLC 0.01% of their portfolio OKLAHOMA CITY, OK 29,88929.9k $292.3k $292.3k 0.01% Reduced -111 -111
97 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 24,52624.5k $239.9k $239.9k 0.00% Reduced -40.1k -40,051
98 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 23,77623.8k $232.5k $232.5k 0.00% Reduced -1.9k -1,935
99 Quinn Opportunity Partners LLC 0.02% of their portfolio CHARLOTTESVILLE, VA 22,00022.0k $215.2k $215.2k 0.02% Reduced -2.5k -2,533
100 Terril Brothers, Inc. 0.06% of their portfolio St. Louis, MO 21,90021.9k $214.2k $214.2k 0.06% New