Atkore Inc.
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionLinden Thomas Advisory Services, LLC
Latest Disclosed Ownership25,677 shares
Latest Disclosed Value $ 1,512,632
Linden Thomas Advisory Services, LLC reports 101.97% increase in ownership of ATKR / Atkore Inc.

On April 10, 2026 - Linden Thomas Advisory Services, LLC filed a 13F-HR form disclosing ownership of 25,677 shares of Atkore Inc. (MX:ATKR) valued at $1,512,632 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 12,713 shares of Atkore Inc.. This represents a change in shares of 101.97% 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)
2026-04-10 2026-03-31 13F ATKORE COM 047649108 25,677 12,964 101.97 1,513 88.06 0.1457
2026-01-16 2025-12-31 13F ATKORE COM 047649108 12,713 126 1.00 804 1.90 0.0815
2025-11-06 2025-09-30 13F ATKORE COM 047649108 12,587 527 4.37 790 -7.18 0.0799
2025-07-31 2025-06-30 13F ATKORE COM 047649108 12,060 7,586 169.56 851 217.16 0.0937
2025-04-30 2025-03-31 13F ATKORE COM 047649108 4,474 675 17.77 268 -15.46 0.0347
2025-01-21 2024-12-31 13F ATKORE COM 047649108 3,799 544 16.71 317 15.27 0.0402
2024-10-17 2024-09-30 13F ATKORE COM 047649108 3,255 500 18.15 276 -25.88 0.0377
2024-07-10 2024-06-30 13F ATKORE COM 047649108 2,755 252 10.07 372 -22.06 0.0574
2024-04-30 2024-03-31 13F ATKORE COM 047649108 2,503 156 6.65 476 26.93 0.0765
2024-02-01 2023-12-31 13F ATKORE COM 047649108 2,347 139 6.30 376 13.98 0.0701
2023-10-20 2023-09-30 13F ATKORE COM 047649108 2,208 547 32.93 329 27.03 0.0734
2023-07-27 2023-06-30 13F ATKORE COM 047649108 1,661 1,661 259 0.0575
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.