阿特科雷公司
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionOMERS ADMINISTRATION Corp
Latest Disclosed Ownership34,951 shares
Latest Disclosed Value $ 2,058,963
OMERS ADMINISTRATION Corp reports 11.13% increase in ownership of ATKR / Atkore Inc.

On May 15, 2026 - OMERS ADMINISTRATION Corp filed a 13F-HR form disclosing ownership of 34,951 shares of Atkore Inc. (MX:ATKR) valued at $2,058,963 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 31,451 shares of Atkore Inc.. This represents a change in shares of 11.13% during the quarter.

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)
2026-05-15 2026-03-31 13F ATKORE COM 047649108 34,951 3,500 11.13 2,059 3.47 0.0132
2026-02-13 2025-12-31 13F ATKORE COM 047649108 31,451 3,072 10.82 1,989 11.74 0.0142
2025-11-14 2025-09-30 13F ATKORE COM 047649108 28,379 1,036 3.79 1,780 -7.72 0.0128
2025-08-13 2025-06-30 13F ATKORE COM 047649108 27,343 1,700 6.63 1,929 25.42 0.0152
2025-05-14 2025-03-31 13F ATKORE COM 047649108 25,643 8,243 47.37 1,538 5.92 0.0135
2025-02-14 2024-12-31 13F ATKORE COM 047649108 17,400 600 3.57 1,452 2.04 0.0127
2024-11-13 2024-09-30 13F ATKORE COM 047649108 16,800 3,700 28.24 1,424 -19.47 0.0131
2024-08-13 2024-06-30 13F ATKORE COM 047649108 13,100 13,100 1,768 0.0170
2020-05-15 2020-03-31 13F ATKORE INTL GROUP COM 047649108 0 -18,300 -100.00 0 -100.00
2020-02-14 2019-12-31 13F ATKORE INTL GROUP COM 047649108 18,300 18,300 740 0.0085
2018-11-14 2018-09-30 13F ATKORE INTL GROUP COM 047649108 0 -27,700 -100.00 0 -100.00
2018-08-09 2018-06-30 13F ATKORE INTL GROUP COM 047649108 27,700 -15,400 -35.73 575 -32.83 0.0053
2018-05-11 2018-03-31 13F ATKORE INTL GROUP COM 047649108 43,100 43,100 856 0.0083
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.