Atkore Inc.
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionGotham Asset Management, LLC
ManagerJoel Greenblatt
Latest Disclosed Ownership4,684 shares
Latest Disclosed Value $ 275,934
Gotham Asset Management, LLC reports 72.52% decrease in ownership of ATKR / Atkore Inc.

On May 15, 2026 - Gotham Asset Management, LLC filed a 13F-HR form disclosing ownership of 4,684 shares of Atkore Inc. (MX:ATKR) valued at $275,934 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 17,047 shares of Atkore Inc.. This represents a change in shares of -72.52% 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 4,684 -12,363 -72.52 276 -74.49 0.0008
2026-02-17 2025-12-31 13F ATKORE COM 047649108 17,047 899 5.57 1,078 6.42 0.0039
2025-11-14 2025-09-30 13F ATKORE COM 047649108 16,148 -9,930 -38.08 1,013 -44.92 0.0044
2025-08-14 2025-06-30 13F ATKORE COM 047649108 26,078 11,440 78.15 1,840 109.45 0.0110
2025-05-15 2025-03-31 13F ATKORE COM 047649108 14,638 -4,491 -23.48 878 -44.99 0.0073
2025-02-14 2024-12-31 13F ATKORE COM 047649108 19,129 7,293 61.62 1,596 59.28 0.0151
2024-11-14 2024-09-30 13F ATKORE COM 047649108 11,836 6,872 138.44 1,003 49.78 0.0104
2024-08-14 2024-06-30 13F ATKORE COM 047649108 4,964 2,829 132.51 670 64.78 0.0087
2024-05-15 2024-03-31 13F ATKORE COM 047649108 2,135 -2,441 -53.34 406 -44.54 0.0061
2024-02-14 2023-12-31 13F ATKORE COM 047649108 4,576 -3,673 -44.53 732 -40.49 0.0136
2023-11-14 2023-09-30 13F ATKORE COM 047649108 8,249 -2,540 -23.54 1,231 -26.87 0.0254
2023-08-14 2023-06-30 13F ATKORE COM 047649108 10,789 1,562 16.93 1,682 29.78 0.0366
2023-05-15 2023-03-31 13F ATKORE COM 047649108 9,227 1,317 16.65 1,296 44.48 0.0314
2023-02-14 2022-12-31 13F ATKORE COM 047649108 7,910 -13,543 -63.13 897 -46.26 0.0252
2022-11-14 2022-09-30 13F ATKORE COM 047649108 21,453 -18,771 -46.67 1,669 -50.01 0.0500
2022-08-15 2022-06-30 13F ATKORE COM 047649108 40,224 5,778 16.77 3,339 -1.53 0.1072
2022-05-16 2022-03-31 13F ATKORE COM 047649108 34,446 -1,444 -4.02 3,391 -15.03 0.1050
2022-02-14 2021-12-31 13F ATKORE COM 047649108 35,890 5,975 19.97 3,991 53.50 0.1287
2021-11-15 2021-09-30 13F ATKORE COM 047649108 29,915 -2,866 -8.74 2,600 11.73 0.1054
2021-08-16 2021-06-30 13F ATKORE COM 047649108 32,781 11,637 55.04 2,327 53.09 0.0986
2021-05-17 2021-03-31 13F ATKORE COM 047649108 21,144 -17,956 -45.92 1,520 -5.41 0.0678
2021-02-16 2020-12-31 13F ATKORE INTL GROUP COM 047649108 39,100 -3,314 -7.81 1,607 66.70 0.0532
2020-11-16 2020-09-30 13F ATKORE INTL GROUP COM 047649108 42,414 1,699 4.17 964 -13.46 0.0310
2020-08-13 2020-06-30 13F ATKORE INTL GROUP COM 047649108 40,715 -31,084 -43.29 1,114 -26.37 0.0333
2020-05-15 2020-03-31 13F ATKORE INTL GROUP COM 047649108 71,799 35,956 100.32 1,513 4.34 0.0420
2020-02-14 2019-12-31 13F ATKORE INTL GROUP COM 047649108 35,843 27,437 326.40 1,450 468.63 0.0266
2019-11-14 2019-09-30 13F ATKORE INTL GROUP COM 047649108 8,406 8,406 255 0.0045
2019-08-14 2019-06-30 13F ATKORE INTL GROUP COM 047649108 0 -19,783 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ATKORE INTL GROUP COM 047649108 19,783 -108,812 -84.62 426 -83.30 0.0062
2019-02-14 2018-12-31 13F ATKORE INTL GROUP COM 047649108 128,595 -94,164 -42.27 2,551 -56.84 0.0396
2018-11-14 2018-09-30 13F ATKORE INTL GROUP COM 047649108 222,759 159,929 254.54 5,910 352.87 0.0816
2018-08-14 2018-06-30 13F ATKORE INTL GROUP COM 047649108 62,830 50,733 419.38 1,305 443.75 0.0189
2018-05-15 2018-03-31 13F ATKORE INTL GROUP COM 047649108 12,097 12,097 240 0.0034
2018-02-14 2017-12-31 13F ATKORE INTL GROUP COM 047649108 0 -45,888 -100.00 0 -100.00
2017-11-14 2017-09-30 13F ATKORE INTL GROUP COM 047649108 45,888 45,888 895 0.0131
2017-08-14 2017-06-30 13F ATKORE INTL GROUP COM 047649108 0 -60,576 -100.00 0 -100.00
2017-05-15 2017-03-31 13F ATKORE INTL GROUP COM 047649108 60,576 36,173 148.23 1,592 173.07 0.0202
2017-02-14 2016-12-31 13F ATKORE INTL GROUP COM 047649108 24,403 24,403 583 0.0075
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.