ALGOMA STL GROUP INC (ASTL)
Institutional ownership reported to the SEC as of Q2 2026, across 19 quarters.
101
Reporting holders
$301.4M
Reported value
70.0%
Of shares outstanding
0.5%
Calls
0.8%
Puts
+1
Holder change
Institutions report 73,459,056 shares against 104,933,802 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (cy2025q4i).
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Maple Rock Capital Partners Inc. | $68.3M | 16,861,818 | 1.34% | 19q | +5.8%+$3.8M |
| MMCAP International Inc. SPC | $44.4M | 10,954,738 | 3.76% | 11q | -14.7%-$7.7M |
| DONALD SMITH & CO., INC. | $21.4M | 5,277,631 | 0.38% | 16q | -12.5%-$3.0M |
| BlackRock, Inc. | $16.8M | 4,143,265 | 0.00% | 8q | +0.7%+$112.6K |
| Scheer, Rowlett & Associates Investment Management Ltd. | $15.7M | 3,846,390 | 1.13% | 13q | +19.9%+$2.6M |
| MORGAN STANLEY | $12.0M | 2,958,350 | 0.00% | 19q | +99.4%+$6.0M |
| AEGIS FINANCIAL CORP | $7.2M | 1,786,122 | 1.14% | 15q | HELD |
| CDC Financial, Inc. | $7.2M | 1,745,647 | 3.03% | 3q | +8.2%+$546.4K |
| CITADEL ADVISORS LLC | $6.9M | 1,691,870 | 0.00% | 19q | +531.9%+$5.8M |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | $6.7M | 1,660,000 | 1.46% | new | NEW |
| LITTLEJOHN & CO LLC | $6.2M | 1,518,714 | 7.83% | 19q | -55.9%-$7.8M |
| Connor, Clark & Lunn Investment Management Ltd. | $5.6M | 1,387,320 | 0.01% | 3q | -19.6%-$1.4M |
| Sourcerock Group LLC | $5.1M | 1,247,507 | 0.26% | 2q | -4.5%-$238.5K |
| MACKENZIE FINANCIAL CORP | $5.0M | 1,329,806 | 0.00% | 5q | +1246.3%+$4.6M |
| TWO SIGMA INVESTMENTS, LP | $4.2M | 1,041,811 | 0.00% | 2q | +286.0%+$3.1M |
| LM Asset Management Inc. | $4.1M | 1,016,000 | 2.55% | 6q | -42.4%-$3.0M |
| Bracebridge Capital, LLC | $3.7M | 924,931 | 0.07% | 14q | HELD |
| JB CAPITAL PARTNERS LP | $3.5M | 872,277 | 0.55% | 19q | HELD |
| Bain Capital Credit, LP | $3.3M | 825,777 | 0.91% | 19q | HELD |
| JPMORGAN CHASE & CO | $3.2M | 810,208 | 0.00% | 2q | +251.0%+$2.3M |
| Ewing Morris & Co. Investment Partners Ltd. | $2.9M | 722,350 | 1.54% | 8q | +1.7%+$50.3K |
| Quadrature Capital Ltd | $2.8M | 682,493 | 0.02% | 6q | -22.3%-$798.5K |
| D. E. Shaw & Co., Inc. | $2.7M | 670,373 | 0.00% | 4q | +147.8%+$1.6M |
| TCW GROUP INC | $2.5M | 607,478 | 0.02% | 17q | -20.9%-$650.8K |
| Point72 Asset Management, L.P. | $2.3M | 575,225 | 0.00% | 2q | +678.2%+$2.0M |
| TD Asset Management Inc | $2.0M | 498,279 | 0.00% | 17q | -40.8%-$1.4M |
| MARSHALL WACE, LLP | $2.0M | 499,494 | 0.00% | new | NEW |
| ACADIAN ASSET MANAGEMENT LLC | $2.0M | 488,194 | 0.00% | 5q | +3198.6%+$1.9M |
| Russell Investments Group, Ltd. | $1.9M | 471,288 | 0.00% | 16q | -17.5%-$406.1K |
| READYSTATE ASSET MANAGEMENT LP | $1.9M | 463,228 | 0.06% | 5q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.8M | 438,431 | 0.00% | 9q | -26.8%-$653.8K |
| Sixth Street Partners Management Company, L.P. | $1.8M | 438,431 | 0.00% | new | NEW |
| SIMPLEX TRADING, LLC | $1.8M | 125,725 | 0.00% | 17q | -18.8%-$406.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.7M | options only | 0.00% | 17q | OPTIONS |
| BNP PARIBAS FINANCIAL MARKETS | $1.7M | 418,754 | 0.00% | 7q | +540.1%+$1.4M |
| MILLENNIUM MANAGEMENT LLC | $1.6M | 386,942 | 0.00% | 19q | -49.5%-$1.5M |
| DIMENSIONAL FUND ADVISORS LP | $1.4M | 356,116 | 0.00% | 9q | -1.6%-$23.8K |
| BARCLAYS PLC | $1.3M | 308,972 | 0.00% | 18q | +80.1%+$556.5K |
| Voleon Capital Management LP | $1.2M | 307,297 | 0.02% | 3q | +134.7%+$714.3K |
| BANK OF MONTREAL /CAN/ | $1.2M | 288,488 | 0.00% | 19q | +5.8%+$64.6K |
| Jump Financial, LLC | $1.2M | 289,675 | 0.01% | new | NEW |
| SIG North Trading, ULC | $1.1M | 96,117 | 0.02% | 13q | -44.1%-$879.8K |
| GOLDMAN SACHS GROUP INC | $1.1M | 264,994 | 0.00% | 18q | +5.0%+$50.8K |
| ROYAL BANK OF CANADA | $604.0K | 149,303 | 0.00% | 19q | +1.7%+$10.0K |
| Quinn Opportunity Partners LLC | $576.5K | 142,336 | 0.03% | 8q | HELD |
| XTX Topco Ltd | $496.8K | 122,662 | 0.01% | 4q | -32.7%-$241.7K |
| BANK OF AMERICA CORP /DE/ | $470.8K | 116,242 | 0.00% | 19q | +86.3%+$218.1K |
| Summit Financial, LLC | $446.8K | 110,333 | 0.00% | 4q | HELD |
| Quantbot Technologies LP | $442.3K | 109,199 | 0.02% | 9q | -30.9%-$197.4K |
| ExodusPoint Capital Management, LP | $412.1K | 101,746 | 0.00% | 4q | -55.7%-$517.7K |
| Boston Partners | $359.7K | 88,825 | 0.00% | 11q | +2.0%+$7.1K |
| PDT Partners, LLC | $296.0K | 73,079 | 0.02% | 5q | +3.9%+$11.2K |
| BOOTHBAY FUND MANAGEMENT, LLC | $288.3K | 71,194 | 0.00% | 2q | +58.0%+$105.8K |
| GEODE CAPITAL MANAGEMENT, LLC | $274.8K | 67,859 | 0.00% | 19q | +6.3%+$16.4K |
| JANE STREET GROUP, LLC | $271.7K | 52,687 | 0.00% | 17q | -94.1%-$4.3M |
| GSA CAPITAL PARTNERS LLP | $269.0K | 66,463 | 0.02% | 3q | +20.9%+$46.5K |
| GROUP ONE TRADING LLC | $236.5K | 34,896 | 0.00% | 5q | -59.3%-$344.0K |
| LPL Financial LLC | $228.9K | 56,526 | 0.00% | 17q | -5.5%-$13.2K |
| Terril Brothers, Inc. | $218.7K | 54,000 | 0.06% | 7q | -6.9%-$16.2K |
| Verition Fund Management LLC | $217.1K | 53,606 | 0.00% | 3q | +100.0%+$108.6K |
| HSBC HOLDINGS PLC | $213.6K | 53,267 | 0.00% | 5q | -2.0%-$4.5K |
| AMERICAN CENTURY COMPANIES INC | $207.0K | 50,800 | 0.00% | 11q | +23.7%+$39.6K |
| Invesco Ltd. | $170.3K | 42,054 | 0.00% | 16q | -28.9%-$69.2K |
| Squarepoint Ops LLC | $169.3K | 41,806 | 0.00% | 2q | -34.9%-$90.6K |
| Campbell & CO Investment Adviser LLC | $166.2K | 41,049 | 0.01% | new | NEW |
| Phoenix Financial Ltd. | $144.6K | 35,714 | 0.00% | 8q | HELD |
| Lavaca Capital LLC | $144.1K | 35,573 | 0.01% | new | NEW |
| Y-Intercept (Hong Kong) Ltd | $144.0K | 35,549 | 0.00% | new | NEW |
| PRELUDE CAPITAL MANAGEMENT, LLC | $129.1K | 31,881 | 0.01% | new | NEW |
| Claret Asset Management Corp | $123.0K | 30,375 | 0.01% | 6q | HELD |
| Corient Private Wealth LP | $121.5K | 30,000 | 0.00% | 7q | +100.0%+$60.8K |
| NewEdge Advisors, LLC | $113.0K | 27,899 | 0.00% | 8q | -1.4%-$1.6K |
| Olympiad Research LP | $104.2K | 25,736 | 0.22% | new | NEW |
| CIBC WORLD MARKET INC. | $102.5K | 25,300 | 0.00% | 17q | -1.0%-$1.0K |
| IMC-Chicago, LLC | $101.7K | options only | 0.00% | 2q | OPTIONS |
| FIL Ltd | $93.4K | 22,908 | 0.00% | 3q | -26.0%-$32.8K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | $88.2K | 21,773 | 0.00% | 9q | HELD |
| Net Worth Advisory Group | $84.4K | 20,833 | 0.02% | 8q | -6.9%-$6.3K |
| Federation des caisses Desjardins du Quebec | $73.8K | 18,360 | 0.00% | 19q | HELD |
| VICTORY CAPITAL MANAGEMENT INC | $45.5K | 11,223 | 0.00% | 11q | +3.8%+$1.7K |
| Aquatic Capital Management LLC | $45.3K | 11,173 | 0.00% | 3q | -76.4%-$146.1K |
| EJF Capital LP | $44.5K | 11,000 | 0.03% | 6q | HELD |
| SG Americas Securities, LLC | $44.0K | 10,886 | 0.00% | new | NEW |
| TORONTO DOMINION BANK | $41.0K | 10,000 | 0.00% | 19q | -61.8%-$66.3K |
| ELEMENT POINTE ADVISORS, LLC | $40.5K | 10,000 | 0.01% | 3q | HELD |
| UBS Group AG | $33.6K | 8,294 | 0.00% | 13q | -97.3%-$1.2M |
| CITIGROUP INC | $27.9K | 6,849 | 0.00% | 7q | +111.7%+$14.7K |
| TD Waterhouse Canada Inc. | $25.6K | 6,700 | 0.00% | 2q | +42.6%+$7.7K |
| Aviso Financial Inc. | $25.1K | 6,164 | 0.00% | 9q | +2.2% |
| ASSETMARK, INC | $10.1K | 2,500 | 0.00% | 2q | HELD |
| Purpose Unlimited Inc. | $9.9K | options only | 0.00% | new | OPTIONS |
| OSAIC HOLDINGS, INC. | $6.8K | 1,682 | 0.00% | 5q | HELD |
| FNY Investment Advisers, LLC | $5.0K | 830 | 0.00% | 18q | -98.7%-$388.3K |
| JONES FINANCIAL COMPANIES LLLP | $3.7K | 878 | 0.00% | new | NEW |
| Caitong International Asset Management Co., Ltd | $518 | 128 | 0.00% | new | NEW |
| Physician Wealth Advisors, Inc. | $450 | 111 | 0.00% | new | NEW |
| Arlington Trust Co LLC | $405 | 100 | 0.00% | 6q | HELD |
| Tower Research Capital LLC (TRC) | $316 | 78 | 0.00% | 16q | -98.0%-$15.3K |
| Alpine Global Management, LLC | $293 | options only | 0.00% | 2q | OPTIONS |
| Basepoint Wealth LLC | $208 | 51 | 0.00% | 3q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | MMCAP International Inc. SPCwith 1 co-filers | 10.4% |
| 2026-08-11 | 13G | DONALD SMITH & CO., INC.with 1 co-filers | 5.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 101 | $301.4M | 73,459,056 | 14 | 32 | 36 | 1.4% |
| Q1 2026 | 100 | $305.2M | 71,941,294 | 18 | 32 | 33 | 2.7% |
| Q4 2025 | 110 | $362.8M | 83,191,146 | 21 | 39 | 26 | 4.5% |
| Q3 2025 | 127 | $290.2M | 77,882,069 | 23 | 39 | 36 | 4.5% |
| Q2 2025 | 136 | $592.8M | 80,374,411 | 29 | 33 | 40 | 6.6% |
| Q1 2025 | 135 | $436.6M | 77,066,502 | 19 | 40 | 40 | 2.4% |
| Q4 2024 | 139 | $830.8M | 82,060,444 | 21 | 41 | 35 | 3.4% |
| Q3 2024 | 136 | $829.7M | 78,625,606 | 28 | 36 | 41 | 3.6% |
| Q2 2024 | 119 | $523.9M | 71,939,648 | 18 | 27 | 34 | 2.7% |
| Q1 2024 | 113 | $659.9M | 75,552,845 | 10 | 33 | 42 | 2.8% |
| Q4 2023 | 120 | $743.0M | 72,158,633 | 23 | 36 | 36 | 2.5% |
| Q3 2023 | 112 | $501.2M | 70,865,669 | 11 | 29 | 39 | 3.7% |
| Q2 2023 | 119 | $498.9M | 66,996,508 | 18 | 32 | 34 | 4.5% |
| Q1 2023 | 116 | $562.5M | 67,363,578 | 22 | 51 | 29 | 3.2% |
| Q4 2022 | 119 | $489.3M | 76,432,500 | 21 | 38 | 38 | 0.9% |
| Q3 2022 | 117 | $451.3M | 69,128,698 | 32 | 31 | 32 | 1.2% |
| Q2 2022 | 120 | $989.5M | 106,756,116 | 51 | 38 | 25 | 1.3% |
| Q1 2022 | 88 | $1.1B | 94,521,654 | 32 | 30 | 11 | 0.0% |
| Q4 2021 | 68 | $644.8M | 61,967,959 | 67 | 0 | 0 | 0.0% |