Atkore Inc.
US ˙ NYSE ˙ US0476491081

SecurityATKR / Atkore Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership14,599 shares
Latest Disclosed Value $ 860,041
Citigroup Inc ownership in ATKR / Atkore Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 14,599 shares of Atkore Inc. (US:ATKR) valued at $860,027 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,748 shares of Atkore Inc.. This represents a change in shares of 66.88% during the quarter. The current value of the position is $1,241,207 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (ATKR) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ATKR / Atkore Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F ATKORE COM 047649108 14,599 5,851 66.88 860 55.52 0.0002
2026-02-13 2025-12-31 13F ATKORE COM 047649108 8,748 -7,153 -44.98 553 -44.53 0.0002
2025-11-10 2025-09-30 13F ATKORE COM 047649108 15,901 -7,831 -33.00 998 -40.44 0.0004
2025-08-11 2025-06-30 13F ATKORE COM 047649108 23,732 -37,799 -61.43 1,674 -54.65 0.0008
2025-05-12 2025-03-31 13F ATKORE COM 047649108 61,531 4,916 8.68 3,691 -21.87 0.0019
2025-02-12 2024-12-31 13F ATKORE COM 047649108 56,615 9,374 19.84 4,725 18.01 0.0028
2024-11-12 2024-09-30 13F ATKORE COM 047649108 47,241 -12,894 -21.44 4,003 -50.67 0.0023
2024-08-12 2024-06-30 13F ATKORE COM 047649108 60,135 33,784 128.21 8,114 61.76 0.0052
2024-05-10 2024-03-31 13F ATKORE COM 047649108 26,351 9,581 57.13 5,016 86.95 0.0033
2024-02-09 2023-12-31 13F ATKORE COM 047649108 16,770 6,323 60.52 2,683 72.21 0.0019
2023-12-06 2023-09-30 13F/A-1 ATKORE COM 047649108 10,447 -15,484 -59.71 1,559 -61.46 0.0012
2023-11-09 2023-09-30 13F ATKORE COM 047649108 10,447 -15,484 1,559 0.0005
2023-08-10 2023-06-30 13F ATKORE COM 047649108 25,931 14,314 123.22 4,044 147.88 0.0027
2023-05-11 2023-03-31 13F ATKORE COM 047649108 11,617 -4,389 -27.42 1,632 -10.14 0.0011
2023-02-09 2022-12-31 13F ATKORE COM 047649108 16,006 -2,521 -13.61 1,815 25.95 0.0014
2022-11-10 2022-09-30 13F ATKORE COM 047649108 18,527 4,023 27.74 1,441 19.68 0.0010
2022-08-10 2022-06-30 13F ATKORE COM 047649108 14,504 248 1.74 1,204 -14.18 0.0009
2022-05-12 2022-03-31 13F ATKORE COM 047649108 14,256 -8,060 -36.12 1,403 -43.45 0.0009
2022-02-10 2021-12-31 13F ATKORE COM 047649108 22,316 5,469 32.46 2,481 69.47 0.0013
2021-11-10 2021-09-30 13F ATKORE COM 047649108 16,847 12,267 267.84 1,464 350.46 0.0009
2021-08-10 2021-06-30 13F ATKORE COM 047649108 4,580 448 10.84 325 9.43 0.0002
2021-05-13 2021-03-31 13F ATKORE COM 047649108 4,132 -13,428 -76.47 297 -58.86 0.0002
2021-02-11 2020-12-31 13F ATKORE INTL GROUP COM 047649108 17,560 -6,943 -28.34 722 29.62 0.0004
2020-11-12 2020-09-30 13F ATKORE INTL GROUP COM 047649108 24,503 -21,150 -46.33 557 -55.40 0.0004
2020-08-12 2020-06-30 13F ATKORE INTL GROUP COM 047649108 45,653 -2,410 -5.01 1,249 23.30 0.0010
2020-05-12 2020-03-31 13F ATKORE INTL GROUP COM 047649108 48,063 -3,833 -7.39 1,013 -51.76 0.0009
2020-02-12 2019-12-31 13F ATKORE INTL GROUP COM 047649108 51,896 29,246 129.12 2,100 205.68 0.0015
2019-11-08 2019-09-30 13F ATKORE INTL GROUP COM 047649108 22,650 -28,555 -55.77 687 -48.11 0.0005
2019-08-12 2019-06-30 13F ATKORE INTL GROUP COM 047649108 51,205 1,928 3.91 1,324 24.79 0.0011
2019-05-13 2019-03-31 13F ATKORE INTL GROUP COM 047649108 49,277 -106,071 -68.28 1,061 -65.57 0.0010
2019-02-12 2018-12-31 13F ATKORE INTL GROUP COM 047649108 155,348 -49,905 -24.31 3,082 -43.40 0.0031
2018-11-13 2018-09-30 13F ATKORE INTL GROUP COM 047649108 205,253 33,544 19.54 5,445 52.69 0.0049
2018-08-10 2018-06-30 13F ATKORE INTL GROUP COM 047649108 171,709 78,791 84.80 3,566 93.38 0.0033
2018-05-11 2018-03-31 13F ATKORE INTL GROUP COM 047649108 92,918 -28,775 -23.65 1,844 -29.35 0.0015
2018-02-12 2017-12-31 13F ATKORE INTL GROUP COM 047649108 121,693 91,540 303.59 2,610 343.88 0.0021
2017-11-13 2017-09-30 13F ATKORE INTL GROUP COM 047649108 30,153 11,644 62.91 588 41.01 0.0005
2017-08-11 2017-06-30 13F ATKORE INTL GROUP COM 047649108 18,509 11,918 180.82 417 141.04 0.0004
2017-05-12 2017-03-31 13F ATKORE INTL GROUP COM 047649108 6,591 -12,441 -65.37 173 -61.98 0.0002
2017-02-10 2016-12-31 13F ATKORE INTL GROUP COM 047649108 19,032 15,327 413.68 455 559.42 0.0004
2016-11-10 2016-09-30 13F ATKORE INTL GROUP COM 047649108 3,705 2,932 379.30 69 430.77 0.0001
2016-08-12 2016-06-30 13F ATKORE INTL GROUP COM 047649108 773 773 13 0.0000
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-11-12 2024-09-30 13F ATKORE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-12 2024-06-30 13F ATKORE COM Put 30,000 4,048 n/a n/a n/a
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.