Algoma Steel Group Inc.
CA ˙ TSX ˙ CA0156581070
7,64 CA$ ↓ -0,06 (-0,78%)
2026-06-04
AKTIENPREIS
SecurityCA:ASTL / Algoma Steel Group Inc.
InstitutionBoston Partners
Latest Disclosed Ownership87,067 shares
Latest Disclosed Value $ 359,590
Boston Partners reports 26.92% increase in ownership of ASTL / Algoma Steel Group Inc.

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 87,067 shares of Algoma Steel Group Inc. (CA:ASTL) valued at $499,765 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 68,598 shares of Algoma Steel Group Inc.. This represents a change in shares of 26.92% during the quarter. The current value of the position is $665,192 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F ALGOMA STL GROUP COM 015658107 87,067 18,469 26.92 360 27.76 0.0002
2026-02-13 2025-12-31 13F ALGOMA STL GROUP COM 015658107 68,598 15,175 28.41 281 48.68 0.0003
2025-11-13 2025-09-30 13F ALGOMA STL GROUP COM 015658107 53,423 -14,567 -21.43 190 -59.62 0.0002
2025-08-12 2025-06-30 13F/A-1 ALGOMA STL GROUP COM 015658107 67,990 -1,268 -1.83 468 24.80 0.0005
2025-08-07 2025-06-30 13F ALGOMA STL GROUP COM 015658107 67,990 -1,268 468 0.0002
2025-05-13 2025-03-31 13F ALGOMA STL GROUP COM 015658107 69,258 -1,058 -1.50 375 -45.41 0.0005
2025-02-11 2024-12-31 13F ALGOMA STL GROUP COM 015658107 70,316 -96,661 -57.89 688 -59.78 0.0008
2024-11-12 2024-09-30 13F ALGOMA STL GROUP COM 015658107 166,977 5,778 3.58 1,708 52.36 0.0020
2024-08-14 2024-06-30 13F ALGOMA STL GROUP COM 015658107 161,199 99,062 159.43 1,122 112.71 0.0014
2024-05-28 2024-03-31 13F/A-1 ALGOMA STL GROUP COM 015658107 62,137 34,548 125.22 528 90.94 0.0006
2024-05-13 2024-03-31 13F ALGOMA STL GROUP COM 015658107 62,137 34,548 528 0.0003
2024-02-07 2023-12-31 13F ALGOMA STL GROUP COM 015658107 27,589 27,589 277 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.