Atkore Inc.
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership2,054 shares
Latest Disclosed Value $ 120,998
Advisor Group Holdings, Inc. reports 4.15% decrease in ownership of ATKR / Atkore Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 2,054 shares of Atkore Inc. (MX:ATKR) valued at $120,998 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,143 shares of Atkore Inc.. This represents a change in shares of -4.15% 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 2,054 -89 -4.15 121 -11.11 0.0001
2026-02-17 2025-12-31 13F ATKORE COM 047649108 2,143 484 29.17 136 32.35 0.0002
2025-11-14 2025-09-30 13F ATKORE COM 047649108 1,659 -135 -7.53 103 -19.05 0.0001
2025-09-04 2025-06-30 13F/A-1 TKORE COM 047649108 1,794 240 15.44 127 35.48 0.0002
2025-08-13 2025-06-30 13F TKORE COM 047649108 1,823 269 135 0.0002
2025-05-12 2025-03-31 13F ATKORE COM 047649108 1,554 707 83.47 93 32.86 0.0002
2025-06-06 2024-12-31 13F/A-1 ATKORE COM 047649108 847 -695 -45.07 71 -46.15 0.0002
2025-02-07 2024-12-31 13F ATKORE COM 047649108 1,052 -490 89 0.0002
2024-11-13 2024-09-30 13F ATKORE COM 047649108 1,542 -5,662 -78.60 131 -86.63 0.0003
2024-08-13 2024-06-30 13F ATKORE COM 047649108 7,204 261 3.76 972 -26.42 0.0023
2024-05-10 2024-03-31 13F ATKORE COM 047649108 6,943 -968 -12.24 1,322 4.43 0.0030
2024-02-12 2023-12-31 13F ATKORE COM 047649108 7,911 -5,454 -40.81 1,266 -36.56 0.0022
2023-11-13 2023-09-30 13F ATKORE COM 047649108 13,365 5,499 69.91 1,994 62.64 0.0029
2023-08-21 2023-06-30 13F/A-1 ATKORE COM 047649108 7,866 934 13.47 1,226 26.13 0.0022
2023-08-10 2023-06-30 13F ATKORE COM 047649108 7,866 934 1,226 0.0003
2023-05-12 2023-03-31 13F ATKORE COM 047649108 6,932 -163 -2.30 973 20.90 0.0018
2023-02-10 2022-12-31 13F ATKORE COM 047649108 7,095 -16 -0.23 804 45.39 0.0016
2022-11-14 2022-09-30 13F ATKORE COM 047649108 7,111 42 0.59 553 -5.79 0.0013
2022-08-10 2022-06-30 13F ATKORE COM 047649108 7,069 -565 -7.40 587 -23.27 0.0013
2022-05-04 2022-03-31 13F ATKORE COM 047649108 7,634 1,863 32.28 765 19.34 0.0015
2022-02-03 2021-12-31 13F ATKORE COM 047649108 5,771 2,336 68.01 641 115.10 0.0012
2021-11-05 2021-09-30 13F ATKORE COM 047649108 3,435 623 22.16 298 49.00 0.0006
2021-08-02 2021-06-30 13F ATKORE COM 047649108 2,812 -11,236 -79.98 200 -80.18 0.0004
2021-05-13 2021-03-31 13F ATKORE COM 047649108 14,048 12,020 592.70 1,009 1,101.19 0.0024
2021-02-10 2020-12-31 13F ATKORE INTL GROUP COM 047649108 2,028 -953 -31.97 84 23.53 0.0002
2020-11-12 2020-09-30 13F ATKORE INTL GROUP COM 047649108 2,981 -401 -11.86 68 -26.88 0.0002
2020-08-14 2020-06-30 13F ATKORE INTL GROUP COM 047649108 3,382 1,000 41.98 93 86.00 0.0003
2020-05-18 2020-03-31 13F ATKORE INTL GROUP COM 047649108 2,382 2,382 50 0.0002
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.