Atkore Inc.
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership76,228 shares
Latest Disclosed Value $ 4,490,591
Bnp Paribas Arbitrage, Sa reports 23.66% increase in ownership of ATKR / Atkore Inc.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 76,228 shares of Atkore Inc. (MX:ATKR) valued at $4,490,591 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 61,643 shares of Atkore Inc.. This represents a change in shares of 23.66% 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)
2026-05-12 2026-03-31 13F Atkore Equity 047649108 76,228 14,585 23.66 4,491 15.19 0.0002
2026-02-10 2025-12-31 13F Atkore Equity 047649108 61,643 -23,436 -27.55 3,899 -26.96 0.0018
2025-11-13 2025-09-30 13F Atkore Equity 047649108 85,079 67,666 388.59 5,338 334.61 0.0029
2025-08-14 2025-06-30 13F Atkore Equity 047649108 17,413 -844 -4.62 1,228 12.15 0.0007
2025-05-14 2025-03-31 13F Atkore Equity 047649108 18,257 -35,413 -65.98 1,095 -75.55 0.0006
2025-02-14 2024-12-31 13F Atkore Equity 047649108 53,670 -66,193 -55.22 4,479 -55.91 0.0025
2024-11-13 2024-09-30 13F Atkore Equity 047649108 119,863 70,955 145.08 10,157 53.92 0.0068
2024-08-13 2024-06-30 13F Atkore Equity 047649108 48,908 7,447 17.96 6,599 -16.38 0.0054
2024-05-01 2024-03-31 13F Atkore Equity 047649108 41,461 -8,735 -17.40 7,893 -1.73 0.0069
2024-02-14 2023-12-31 13F/A-2 Atkore Equity 047649108 50,196 -33,592 -40.09 8,031 -35.75 0.0091
2024-02-07 2023-12-31 13F/A-1 Atkore Equity 047649108 50,196 -33,592 8,031 0.0011
2024-02-07 2023-12-31 13F Atkore Equity 047649108 50,196 8,031
2023-11-14 2023-09-30 13F Atkore Equity 047649108 83,788 32,334 62.84 12,500 55.80 0.0161
2023-08-09 2023-06-30 13F Atkore Equity 047649108 51,454 19,201 59.53 8,024 77.11 0.0100
2023-05-12 2023-03-31 13F ATKORE EQUITY 047649108 32,253 15,319 90.46 4,531 135.94 0.0063
2023-02-14 2022-12-31 13F Atkore Equity 047649108 16,934 -7,657 -31.14 1,921 0.37 0.0030
2022-11-16 2022-09-30 13F/A-1 Atkore Equity 047649108 24,591 -7,202 -22.65 1,913 -27.51 0.0031
2022-11-15 2022-09-30 13F Atkore Equity 047649108 24,591 -7,202 1,913 0.0005
2022-08-12 2022-06-30 13F Atkore Equity 047649108 31,793 23,758 295.68 2,639 234.05 0.0041
2022-05-18 2022-03-31 13F/A-1 Atkore Equity 047649108 8,035 -24,477 -75.29 791 -78.15 0.0011
2022-02-09 2021-12-31 13F ATKORE EQUITY 047649108 32,512 23,293 252.66 3,615 351.31 0.0051
2021-11-16 2021-09-30 13F/A-1 ATKORE EQUITY 047649108 9,219 4,185 83.13 801 124.37 0.0011
2021-11-12 2021-09-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 14,324 9,290 326 0.0000
2021-08-10 2021-06-30 13F ATKORE EQUITY 047649108 5,034 -6,032 -54.51 357 -55.09 0.0005
2021-05-07 2021-03-31 13F ATKORE EQUITY 047649108 11,066 -782 -6.60 796 63.24 0.0012
2021-02-10 2020-12-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 11,848 -2,476 -17.29 487 49.85 0.0009
2020-10-30 2020-09-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 14,324 5,391 60.35 326 33.20 0.0005
2020-08-06 2020-06-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 8,933 -38,058 -80.99 244 -75.35 0.0004
2020-05-13 2020-03-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 46,991 34,211 267.69 990 91.49 0.0020
2020-02-12 2019-12-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 12,780 1,086 9.29 517 46.05 0.0009
2019-11-07 2019-09-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 11,694 -1,066 -8.35 355 7.27 0.0006
2019-07-30 2019-06-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 12,760 -2,123 -14.26 330 3.13 0.0007
2019-04-25 2019-03-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 14,883 7,025 89.40 320 106.45 0.0007
2019-02-12 2018-12-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 7,858 2,015 34.49 156 0.00 0.0004
2018-11-07 2018-09-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 5,843 -214,067 -97.34 155 -96.61 0.0002
2018-07-25 2018-06-30 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 219,910 212,626 2,919.08 4,568 3,071.53 0.0076
2018-05-11 2018-03-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 7,284 538 7.98 145 0.00 0.0003
2018-03-05 2017-12-31 13F/A-1 ATKORE INTERNATIONAL GROUP EQUITY 047649108 6,746 3,049 82.47 145 100.00 0.0003
2018-02-01 2017-12-31 13F ATKORE INTERNATIONAL GROUP EQUITY 047649108 6,746 3,049 145
2017-11-03 2017-09-30 13F ATKORE INTL GROUP STOCK 047649108 3,697 -30,012 -89.03 72 -90.53 0.0002
2017-08-03 2017-06-30 13F ATKORE INTL GROUP STOCK 047649108 33,709 -65,832 -66.14 760 -70.94 0.0023
2017-05-03 2017-03-31 13F ATKORE INTL GROUP STOCK 047649108 99,541 99,073 21,169.44 2,616 23,672.73 0.0069
2017-02-14 2016-12-31 13F ATKORE INTL GROUP STOCK 047649108 468 -148 -24.03 11 0.00 0.0001
2016-10-05 2016-09-30 13F ATKORE INTL GROUP INC COM STOCK 047649108 616 616 12 0.0000
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.