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Disclosery

ATKR ATKORE INC

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COMMON STOCK (common), issuer CIK 1666138

294 managers (304 13F filers) reported a position in ATKR shares at 2026-03-31, 32,489,726 shares in all. 41 filers opened a position and 49 filers sold out during the quarter.

Managers
294
13F filers
304
New
41
Added
103
Reduced
95
Sold out
49
Shares held by filers
32,489,726

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
TEACHER RETIREMENT SYSTEM OF TEXAS3,429$202K<0.01%-27,77013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…3,202$189K<0.01%+3,18913F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,882$170K<0.01%+1,01813F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,875$169K0.01%013F-HRTimelineGroup
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp2,430$143K<0.01%013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,054$121K<0.01%-8913F-HRTimelineGroup
Aquatic Capital Management LLC2,041$120K<0.01%new13F-HRTimeline
State of Alaska, Department of Revenue1,875$110K<0.01%013F-HRTimeline
Bayforest Capital Ltd1,772$104K0.12%-21713F-HRTimeline
Hilltop National Bank1,761$104K0.02%+7413F-HRTimeline
Ensign Peak Advisors, Inc1,517$89.4K<0.01%013F-HR/ATimeline
Federation des caisses Desjardins du Qu…1,486$87.5K<0.01%+48013F-HRTimeline
Advisory Services Network, LLC1,359$80.1K<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.1,342$79.1K<0.01%+4213F-HRTimeline
Sterling Capital Management LLC1,116$65.7K<0.01%-83813F-HRTimeline
KBC Group NVin group KBC Group NV963$57K<0.01%013F-HRTimelineGroup
Measured Wealth Private Client Group, L…955$56.3K0.02%-31313F-HRTimeline
GROUP ONE TRADING LLC774$45.6K<0.01%-3,19713F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …668$39.4K<0.01%+16813F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\535$31.5K<0.01%-23313F-HRTimelineGroup
Covestor Ltd509$30K0.02%-1,27013F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.469$28K<0.01%+1813F-HRTimeline
SIMPLEX TRADING, LLC385$22.7K<0.01%-1,67513F-HRTimeline
Boreal Capital Management LLC360$21.2K0.02%013F-HRTimeline
CWM, LLCin group CWM, LLC355$20.9K<0.01%-11613F-HRTimelineGroup
Caldwell Trust Co300$17.7K<0.01%new13F-HRTimeline
GAMMA Investing LLC284$16.7K<0.01%-5713F-HRTimeline
QUADRANT CAPITAL GROUP LLC282$16.6K<0.01%-5113F-HR/ATimeline
Kemnay Advisory Services Inc.276$16.3K<0.01%-1,39113F-HRTimeline
Rossby Financial, LCC250$15.1K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…255$15K<0.01%-8513F-HRTimelineGroup
Geneos Wealth Management Inc.252$14.8K<0.01%+12613F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC230$13.5K<0.01%+2613F-HRTimeline
IFP Advisors, Inc227$13.4K<0.01%013F-HRTimeline
Versant Capital Management, Inc215$12.7K<0.01%-3113F-HRTimeline
SALEM INVESTMENT COUNSELORS INC207$12.2K<0.01%new13F-HR/ATimeline
LOS ANGELES CAPITAL MANAGEMENT LLC202$11.9K<0.01%013F-HRTimeline
SIGNATUREFD, LLC186$11K<0.01%-8913F-HRTimeline
Signature Equity Partners, LLC156$9.19K<0.01%+4213F-HRTimeline
Root Financial Partners, LLC155$9.13K<0.01%+5713F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC154$9.07K<0.01%013F-HRTimeline
Key Financial Inc145$8.54K<0.01%013F-HRTimeline
Smartleaf Asset Management LLC107$6.22K<0.01%+713F-HRTimeline
Silver Grove Financial Group, Inc.100$5.89K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.85$5.01K<0.01%+2813F-HR/ATimelineGroup
Farther Finance Advisors, LLC82$4.95K<0.01%-913F-HRTimeline
AdvisorNet Financial, Inc81$4.77K<0.01%013F-HRTimeline
Allworth Financial LP76$4.45K<0.01%+513F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…56$3.3K<0.01%+413F-HRTimelineGroup
WealthCollab, LLC54$3.18K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…54$3.18K<0.01%-413F-HR/ATimelineGroup
Parkside Financial Bank & Trust50$2.95K<0.01%013F-HRTimeline
MAI Capital Management48$2.83K<0.01%+1313F-HRTimeline
Essential Partners LLC46$2.71K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC45$2.65K<0.01%-2513F-HRTimeline
ROTHSCHILD INVESTMENT LLC44$2.59K<0.01%-1913F-HRTimeline
Dogwood Wealth Management LLC39$2.3K<0.01%+3913F-HRTimeline
Blue Trust, Inc.38$2.24K<0.01%+1613F-HRTimeline
Parallel Advisors, LLC35$2.06K<0.01%013F-HR/ATimeline
Strive Financial Group ,LLC30$2K<0.01%013F-HRTimeline
LRI Investments, LLC33$1.94K<0.01%013F-HRTimeline
MATHER GROUP, LLC.31$1.83K<0.01%new13F-HRTimeline
CVA Family Office, LLC29$1.71K<0.01%new13F-HRTimeline
Arax Advisory Partners14$1.63K<0.01%-3713F-HRTimeline
MassMutual Private Wealth & Trust, FSB23$1.35K<0.01%+1213F-HRTimeline
Mowery & Schoenfeld Wealth Management, …20$1.18K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.20$1.18K<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC19$1.12K<0.01%-1313F-HRTimeline
Peterson Wealth Services19$1.12K<0.01%013F-HRTimeline
Fortitude Family Office, LLC19$1.12K<0.01%+1313F-HRTimeline
Bell Investment Advisors, Inc18$1.06K<0.01%-1813F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC15$884<0.01%013F-HRTimelineGroup
NewEdge Advisors, LLC12$707<0.01%-5013F-HR/ATimeline
Investors Portfolio Services LLC8$597<0.01%new13F-HRTimeline
Kilter Group LLC10$590<0.01%-2013F-HRTimeline
Larson Financial Group LLC10$589<0.01%-5313F-HRTimeline
SWAN Capital LLC10$589<0.01%new13F-HRTimeline
Bogart Wealth, LLC9$530<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK7$412<0.01%013F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC7$412<0.01%new13F-HRTimelineGroup
Keating Financial Advisory Services, In…7$412<0.01%-1213F-HRTimeline
Torren Management, LLC6$365<0.01%013F-HRTimeline
DiNuzzo Private Wealth, Inc.6$354<0.01%+113F-HRTimeline
Bay Harbor Wealth Management, LLC6$353<0.01%+213F-HRTimeline
Rialto Wealth Management, LLC5$295<0.01%-713F-HRTimeline
Walsh & Associates, LLC5$295<0.01%new13F-HRTimeline
Trust Co4$237<0.01%013F-HRTimeline
Vermillion Wealth Management, Inc.4$236<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.4$236<0.01%+113F-HRTimeline
MV CAPITAL MANAGEMENT, INC.3$177<0.01%013F-HRTimeline
HFM Investment Advisors, LLC2$118<0.01%013F-HRTimeline
Beaird Harris Wealth Management, LLC1$74<0.01%013F-HRTimeline
CURIO WEALTH, LLC1$59<0.01%new13F-HRTimeline
Raleigh Capital Management Inc.0$1<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.