Algoma Steel Group Inc. (ASTL) — Institutional Holders, Q2 2026
106 institutional investment managers reported a ASTL position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $293.1M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ASTL in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BRIGHTLINE CAPITAL MANAGEMENTNew · +1,660,000 sh+$6.7M
- MORGAN STANLEYAdded · +1,474,639 sh+$6.0M
- MACKENZIE FINANCIALAdded · +1,231,033 sh+$5.0M
- Maple Rock Capital PartnersAdded · +931,000 sh+$3.8M
- TWO SIGMA INVESTMENTSAdded · +771,911 sh+$3.1M
Biggest sellers
- LITTLEJOHNTrimmed · -1,927,789 sh-$7.8M
- MMCAP International SPCTrimmed · -1,890,884 sh-$7.7M
- Solas Capital ManagementSold out · -1,047,454 sh-$4.2M
- JANE STREET GROUPTrimmed · -840,272 sh-$3.4M
- DONALD SMITHTrimmed · -751,298 sh-$3.0M
ASTL 13F holders ranked 1–100 of 106
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Maple Rock Capital Partners#1 · 16,861,818 sh | 16,861,818 | $68.3M | 1.34% | +5.8% |
| 2 | MMCAP International SPC#2 · 10,954,738 sh | 10,954,738 | $44.4M | 3.76% | -14.7% |
| 3 | DONALD SMITH#3 · 5,277,631 sh | 5,277,631 | $21.4M | 0.38% | -12.5% |
| 4 | BlackRock#4 · 4,143,265 sh | 4,143,265 | $16.8M | <0.01% | +0.7% |
| 5 | Scheer, Rowlett & Associates Investment Management Ltd.#5 · 3,846,390 sh | 3,846,390 | $15.7M | 1.13% | +19.9% |
| 6 | MORGAN STANLEY#6 · 2,958,350 sh | 2,958,350 | $12.0M | <0.01% | +99.4% |
| 7 | AEGIS FINANCIAL#7 · 1,786,122 sh | 1,786,122 | $7.2M | 1.14% | 0.0% |
| 8 | CDC Financial#8 · 5,899,643 sh | 5,899,643 | $7.2M | 3.01% | +2.3% |
| 9 | BRIGHTLINE CAPITAL MANAGEMENT#9 · 1,660,000 sh | 1,660,000 | $6.7M | 1.46% | New |
| 10 | LITTLEJOHN#10 · 1,518,714 sh | 1,518,714 | $6.2M | 7.83% | -55.9% |
| 11 | Connor, Clark & Lunn Investment Management Ltd.#11 · 1,387,320 sh | 1,387,320 | $5.6M | 0.01% | -19.6% |
| 12 | Sourcerock Group#12 · 1,247,507 sh | 1,247,507 | $5.1M | 0.26% | -4.5% |
| 13 | MACKENZIE FINANCIAL#13 · 1,329,806 sh | 1,329,806 | $5.0M | <0.01% | +1246.3% |
| 14 | TWO SIGMA INVESTMENTS#14 · 1,041,811 sh | 1,041,811 | $4.2M | <0.01% | +286.0% |
| 15 | LM Asset (IM)#15 · 1,016,000 sh | 1,016,000 | $4.1M | 2.55% | -42.4% |
| 16 | Bracebridge Capital#16 · 924,931 sh | 924,931 | $3.7M | 0.07% | 0.0% |
| 17 | JB CAPITAL PARTNERS#17 · 872,277 sh | 872,277 | $3.5M | 0.55% | 0.0% |
| 18 | CITADEL ADVISORS#18 · 845,935 sh | 845,935 | $3.4M | <0.01% | +216.0% |
| 19 | Bain Capital Credit#19 · 825,777 sh | 825,777 | $3.3M | 0.91% | 0.0% |
| 20 | JPMORGAN CHASE#20 · 810,208 sh | 810,208 | $3.2M | <0.01% | +251.0% |
| 21 | Ewing Morris & Investment Partners Ltd.#21 · 722,350 sh | 722,350 | $2.9M | 1.54% | +1.7% |
| 22 | Quadrature Capital Ltd#22 · 682,493 sh | 682,493 | $2.8M | 0.02% | -22.3% |
| 23 | D. E. Shaw#23 · 1,228,119 sh | 1,228,119 | $2.7M | <0.01% | +48.3% |
| 24 | TCW GROUP#24 · 607,478 sh | 607,478 | $2.5M | 0.02% | -20.9% |
| 25 | Point72 Asset Management, L.P.#25 · 575,225 sh | 575,225 | $2.3M | <0.01% | +678.2% |
| 26 | TD ASSET MANAGEMENT#26 · 498,279 sh | 498,279 | $2.0M | <0.01% | -40.8% |
| 27 | MARSHALL WACE, LLP#27 · 499,494 sh | 499,494 | $2.0M | <0.01% | New |
| 28 | ACADIAN ASSET MANAGEMENT#28 · 488,194 sh | 488,194 | $2.0M | <0.01% | +3198.6% |
| 29 | Russell Investments Group, Ltd.#29 · 471,288 sh | 471,288 | $1.9M | <0.01% | -17.5% |
| 30 | READYSTATE ASSET MANAGEMENT#30 · 463,228 sh | 463,228 | $1.9M | <0.01% | 0.0% |
| 31 | CHARLES SCHWAB INVESTMENT MANAGEMENT#31 · 438,431 sh | 438,431 | $1.8M | <0.01% | -26.8% |
| 32 | BNP PARIBAS FINANCIAL MARKETS#32 · 418,754 sh | 418,754 | $1.7M | <0.01% | +540.1% |
| 33 | MILLENNIUM MANAGEMENT#33 · 386,942 sh | 386,942 | $1.6M | <0.01% | -49.5% |
| 34 | DIMENSIONAL FUND ADVISORS#34 · 356,116 sh | 356,116 | $1.4M | <0.01% | -1.6% |
| 35 | BARCLAYS PLC#35 · 308,972 sh | 308,972 | $1.3M | <0.01% | +80.1% |
| 36 | Voleon Capital Management#36 · 307,297 sh | 307,297 | $1.2M | 0.02% | +134.7% |
| 37 | BANK OF MONTREAL#37 · 288,488 sh | 288,488 | $1.2M | <0.01% | +5.8% |
| 38 | Jump Financial#38 · 289,675 sh | 289,675 | $1.2M | <0.01% | New |
| 39 | GOLDMAN SACHS GROUP#39 · 264,994 sh | 264,994 | $1.1M | <0.01% | +5.0% |
| 40 | BOOTHBAY FUND MANAGEMENT#40 · 256,194 sh | 256,194 | $1.0M | 0.01% | +11.4% |
| 41 | ROYAL BANK OF CANADA#41 · 166,730 sh | 166,730 | $605.0K | <0.01% | -14.8% |
| 42 | Quinn Opportunity Partners#42 · 142,336 sh | 142,336 | $576.5K | 0.03% | 0.0% |
| 43 | SIMPLEX TRADING#43 · 125,725 sh | 125,725 | $509.2K | <0.01% | -18.8% |
| 44 | XTX Topco Ltd#44 · 122,662 sh | 122,662 | $496.8K | <0.01% | -32.7% |
| 45 | BANK OF AMERICA#45 · 116,242 sh | 116,242 | $470.8K | 0.00% | +86.3% |
| 46 | Summit Financial#46 · 110,333 sh | 110,333 | $446.8K | <0.01% | 0.0% |
| 47 | Quantbot Technologies#47 · 109,199 sh | 109,199 | $442.3K | 0.02% | -30.9% |
| 48 | ExodusPoint Capital Management#48 · 101,746 sh | 101,746 | $412.1K | <0.01% | -55.7% |
| 49 | SIG North Trading, ULC#49 · 96,117 sh | 96,117 | $389.3K | <0.01% | -44.1% |
| 50 | Boston Partners#50 · 88,825 sh | 88,825 | $359.7K | <0.01% | +2.0% |
| 51 | PDT Partners#51 · 73,079 sh | 73,079 | $296.0K | 0.02% | +3.9% |
| 52 | GEODE CAPITAL MANAGEMENT#52 · 67,859 sh | 67,859 | $274.8K | 0.00% | +6.3% |
| 53 | GSA CAPITAL PARTNERS LLP#53 · 66,463 sh | 66,463 | $269.0K | 0.02% | +20.9% |
| 54 | LPL Financial#54 · 68,626 sh | 68,626 | $229.3K | <0.01% | -4.5% |
| 55 | TERRIL BROTHERS#55 · 54,000 sh | 54,000 | $218.7K | 0.06% | -6.9% |
| 56 | JANE STREET GROUP#56 · 153,451 sh | 153,451 | $216.4K | 0.00% | -84.6% |
| 57 | HSBC PLC#57 · 53,267 sh | 53,267 | $213.6K | <0.01% | -2.0% |
| 58 | AMERICAN CENTURY COMPANIES#58 · 50,800 sh | 50,800 | $207.0K | <0.01% | +23.7% |
| 59 | Invesco Ltd.#59 · 42,054 sh | 42,054 | $170.3K | 0.00% | -28.9% |
| 60 | Squarepoint Ops#60 · 41,806 sh | 41,806 | $169.3K | <0.01% | -34.9% |
| 61 | NATIONAL BANK OF CANADA#61 · 40,982 sh | 40,982 | $167.0K | <0.01% | +55.3% |
| 62 | Campbell & Investment Adviser#62 · 41,049 sh | 41,049 | $166.2K | <0.01% | New |
| 63 | Phoenix Financial Ltd.#63 · 35,714 sh | 35,714 | $144.6K | <0.01% | 0.0% |
| 64 | Lavaca Capital#64 · 35,573 sh | 35,573 | $144.1K | 0.01% | New |
| 65 | Y-Intercept (Hong Kong) Ltd#65 · 35,549 sh | 35,549 | $144.0K | — | New |
| 66 | GROUP ONE TRADING, L.P.#66 · 34,896 sh | 34,896 | $141.3K | <0.01% | -59.3% |
| 67 | PRELUDE CAPITAL MANAGEMENT#67 · 31,881 sh | 31,881 | $129.1K | <0.01% | New |
| 68 | Claret Asset Management#68 · 132,375 sh | 132,375 | $126.0K | 0.01% | 0.0% |
| 69 | NewEdge Advisors#69 · 27,899 sh | 27,899 | $113.0K | <0.01% | -1.4% |
| 70 | Verition Fund Management#70 · 26,803 sh | 26,803 | $108.6K | <0.01% | 0.0% |
| 71 | Olympiad Research#71 · 25,736 sh | 25,736 | $104.2K | 0.22% | New |
| 72 | CIBC WORLD MARKET#72 · 25,300 sh | 25,300 | $102.5K | <0.01% | -1.0% |
| 73 | FIL Ltd#73 · 22,908 sh | 22,908 | $93.4K | <0.01% | -26.0% |
| 74 | Empirical Financial Services, d.b.a. Empirical Wealth Ma#74 · 21,773 sh | 21,773 | $88.2K | <0.01% | 0.0% |
| 75 | Net Worth Advisory Group#75 · 20,833 sh | 20,833 | $84.4K | — | -6.9% |
| 76 | LMR Partners LLP#76 · 2,808,732 sh | 2,808,732 | $84.3K | <0.01% | 0.0% |
| 77 | Federation des caisses Desjardins du Quebec#77 · 18,360 sh | 18,360 | $73.8K | <0.01% | 0.0% |
| 78 | VICTORY CAPITAL MANAGEMENT#78 · 11,223 sh | 11,223 | $45.5K | 0.00% | +3.8% |
| 79 | Aquatic Capital Management#79 · 11,173 sh | 11,173 | $45.3K | <0.01% | -76.4% |
| 80 | TORONTO DOMINION BANK#80 · 129,621 sh | 129,621 | $44.6K | <0.01% | -2.7% |
| 81 | EJF Capital#81 · 11,000 sh | 11,000 | $44.5K | 0.03% | 0.0% |
| 82 | SG Americas Securities#82 · 10,886 sh | 10,886 | $44.0K | 0.00% | New |
| 83 | ELEMENT POINTE ADVISORS#83 · 10,000 sh | 10,000 | $40.5K | — | 0.0% |
| 84 | K2 PRINCIPAL FUND, L.P.#84 · 690,879 sh | 690,879 | $34.5K | <0.01% | 0.0% |
| 85 | UBS Group AG#85 · 12,332 sh | 12,332 | $33.7K | 0.00% | -96.0% |
| 86 | CITIGROUP#86 · 6,849 sh | 6,849 | $27.9K | 0.00% | +111.7% |
| 87 | ARISTEIA CAPITAL, L.L.C.#87 · 810,424 sh | 810,424 | $26.2K | <0.01% | -10.1% |
| 88 | TD Waterhouse Canada#88 · 6,700 sh | 6,700 | $25.6K | — | +42.6% |
| 89 | Aviso Financial#89 · 6,164 sh | 6,164 | $25.1K | <0.01% | +2.2% |
| 90 | Aequim Alternative Investments#90 · 414,191 sh | 414,191 | $14.4K | <0.01% | 0.0% |
| 91 | ASSETMARK#91 · 2,500 sh | 2,500 | $10.1K | — | 0.0% |
| 92 | StoneX Group#92 · 207,927 sh | 207,927 | $8.8K | <0.01% | +200.0% |
| 93 | WOLVERINE ASSET MANAGEMENT#93 · 229,858 sh | 229,858 | $6.9K | <0.01% | New |
| 94 | OSAIC#94 · 1,682 sh | 1,682 | $6.8K | 0.00% | -0.1% |
| 95 | Virtu Financial#95 · 164,870 sh | 164,870 | $6.0K | <0.01% | +79.2% |
| 96 | JONES FINANCIAL COMPANIES LLLP#96 · 878 sh | 878 | $3.7K | 0.00% | New |
| 97 | FNY Investment Advisers#97 · 830 sh | 830 | $3.0K | — | -98.7% |
| 98 | Caption Management#98 · 44,550 sh | 44,550 | $1.3K | 0.00% | -28.0% |
| 99 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#99 · 30,310 sh | 30,310 | $1.1K | 0.00% | -18.9% |
| 100 | Caitong International Asset Management , Ltd#100 · 128 sh | 128 | $518.00 | <0.01% | New |
Funds that sold out of ASTL in Q2 2026 (13)
Held ASTL at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Solas Capital Management1,047,454 sh | 1,047,454 | $4.3M |
| HRT FINANCIAL467,190 sh | 467,190 | $1.9M |
| CenterBook Partners233,509 sh | 233,509 | $964.4K |
| RENAISSANCE TECHNOLOGIES117,276 sh | 117,276 | $484.4K |
| Assenagon Asset Management S.A.99,107 sh | 99,107 | $409.3K |
| AYAL Capital Advisors Ltd95,000 sh | 95,000 | $392.4K |
| TWO SIGMA SECURITIES35,367 sh | 35,367 | $146.1K |
| Corient Private Wealth15,000 sh | 15,000 | $62.0K |
| Scientech Research13,748 sh | 13,748 | $56.8K |
| Schonfeld Strategic Advisors13,188 sh | 13,188 | $54.5K |
| BALYASNY ASSET MANAGEMENT L.P.11,517 sh | 11,517 | $47.6K |
| Ulland Investment Advisors1,000 sh | 1,000 | $4.0K |
| Saba Capital Management, L.P.10,200 sh | 10,200 | $1.0K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.