Algoma Steel Group Inc.
DE ˙ DB ˙ CA0156581070
4,70 € ↓ -0,06 (-1,26%)
2026-06-04
DEL PRIS
SecurityDE:9ZY / Algoma Steel Group Inc.
InstitutionCenterBook Partners LP
Latest Disclosed Ownership233,509 shares
Latest Disclosed Value $ 964,392
CenterBook Partners LP reports 41.45% decrease in ownership of 9ZY / Algoma Steel Group Inc.

On May 5, 2026 - CenterBook Partners LP filed a 13F-HR form disclosing ownership of 233,509 shares of Algoma Steel Group Inc. (DE:9ZY) valued at $798,601 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 398,845 shares of Algoma Steel Group Inc.. This represents a change in shares of -41.45% during the quarter. The current value of the position is $1,097,492 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F ALGOMA STL GROUP COM 015658107 233,509 -165,336 -41.45 964 -41.04 0.0518
2026-02-11 2025-12-31 13F ALGOMA STL GROUP COM 015658107 398,845 1,635
2025-11-07 2025-09-30 13F ALGOMA STL GROUP COM 015658107 234,317 -53,273 -18.52 833 -58.00 0.0412
2025-08-12 2025-06-30 13F ALGOMA STL GROUP COM 015658107 287,590 25,424 9.70 1,981 39.51 0.1101
2025-05-09 2025-03-31 13F ALGOMA STL GROUP COM 015658107 262,166 -141,703 -35.09 1,421 -64.04 0.0905
2025-02-13 2024-12-31 13F ALGOMA STL GROUP COM 015658107 403,869 104,981 35.12 3,950 29.18 0.2360
2024-11-14 2024-09-30 13F ALGOMA STL GROUP COM 015658107 298,888 23,861 8.68 3,058 59.72 0.1879
2024-08-12 2024-06-30 13F ALGOMA STL GROUP COM 015658107 275,027 -361,474 -56.79 1,914 -64.58 0.1189
2024-05-10 2024-03-31 13F ALGOMA STL GROUP COM 015658107 636,501 540,443 562.62 5,404 461.06 0.3730
2024-02-13 2023-12-31 13F ALGOMA STL GROUP COM 015658107 96,058 -118,707 -55.27 963 -34.04 0.1175
2023-11-13 2023-09-30 13F ALGOMA STL GROUP COM 015658107 214,765 -68,329 -24.14 1,460 -27.33 0.1821
2023-08-14 2023-06-30 13F ALGOMA STL GROUP COM 015658107 283,094 131,518 86.77 2,010 64.13 0.2514
2023-05-15 2023-03-31 13F ALGOMA STL GROUP COM 015658107 151,576 -34,078 -18.36 1,225 3.99 0.1731
2023-02-13 2022-12-31 13F ALGOMA STL GROUP COM 015658107 185,654 74,286 66.70 1,177 64.16 0.1939
2022-11-14 2022-09-30 13F ALGOMA STL GROUP COM 015658107 111,368 28,692 34.70 717 -3.37 0.1383
2022-08-15 2022-06-30 13F ALGOMA STL GROUP COM 015658107 82,676 65,442 379.73 742 282.47 0.1589
2022-05-16 2022-03-31 13F ALGOMA STL GROUP COM 015658107 17,234 17,234 194 0.0691
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.