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DaveManuel.com · Institutional Ownership · Who Owns It

ATKORE INC (ATKR)

Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.

331
Reporting holders
$2.5B
Reported value
97.4%
Of shares outstanding
0.8%
Calls
0.4%
Puts
+24
Holder change

Institutions report 32,895,715 shares against 33,772,550 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
BlackRock, Inc.$237.0M3,116,2220.00%8q+18.6%+$37.2M
VANGUARD PORTFOLIO MANAGEMENT LLC$161.4M2,122,3800.01%2q+1.5%+$2.4M
AMERICAN CENTURY COMPANIES INC$135.0M1,775,1580.06%31q+23.4%+$25.6M
Gates Capital Management, Inc.$130.0M1,710,1923.13%16q-36.3%-$74.2M
VANGUARD CAPITAL MANAGEMENT LLC$115.9M1,524,2520.00%2q+0.6%+$695.2K
DIMENSIONAL FUND ADVISORS LP$98.8M1,299,7860.02%31q+5.8%+$5.5M
LSV ASSET MANAGEMENT$83.2M1,093,5900.15%31q+4.0%+$3.2M
STATE STREET CORP$68.9M906,4210.00%31q+8.5%+$5.4M
GEODE CAPITAL MANAGEMENT, LLC$68.6M902,4860.00%31q+5.6%+$3.6M
EARNEST PARTNERS LLC$58.7M772,2940.21%3q-0.7%-$426.7K
Hill City Capital, LP$55.1M724,1061.29%4q-0.6%-$311.8K
T. Rowe Price Investment Management, Inc.$49.3M647,8810.03%newNEW
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$43.8M575,6070.05%9q+8.0%+$3.2M
Harding Loevner LP$43.1M567,1920.41%9q-19.5%-$10.5M
FIRST TRUST ADVISORS LP$40.5M533,0630.02%31q-56.5%-$52.8M
JACOBS LEVY EQUITY MANAGEMENT, INC$39.5M519,2750.14%4q+51.3%+$13.4M
JPMORGAN CHASE & CO$39.2M520,8640.00%31q+108.1%+$20.4M
Irenic Capital Management LP$38.6M507,6131.85%3q+3531.8%+$37.5M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$36.7M482,2390.02%5q-30.9%-$16.4M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$34.5M453,9640.00%31q+8.7%+$2.8M
BANK OF AMERICA CORP /DE/$33.4M438,8020.00%31q-5.1%-$1.8M
TWO SIGMA INVESTMENTS, LP$30.6M402,1310.02%8q+13.9%+$3.7M
GENDELL JEFFREY L$30.4M400,2140.27%8qHELD
LONDON CO OF VIRGINIA$29.4M386,8270.17%6q+2.4%+$699.9K
MORGAN STANLEY$28.8M378,5660.00%35q+11.9%+$3.1M
Oslo Pensjonsforsikring AS$28.7M377,0003.30%18qHELD
VICTORY CAPITAL MANAGEMENT INC$28.2M371,3850.02%31q-2.1%-$599.9K
Boston Partners$27.9M367,8060.02%newNEW
NEW YORK STATE COMMON RETIREMENT FUND$25.9M341,2150.03%31q-0.7%-$174.9K
NORTHERN TRUST CORP$25.5M335,4410.00%31q+4.4%+$1.1M
Swedbank AB$22.5M296,2060.02%10qHELD
GOLDMAN SACHS GROUP INC$21.9M288,5860.00%31q+4.5%+$950.0K
BRIDGEWAY CAPITAL MANAGEMENT, LLC$19.2M252,4290.34%4q+3.4%+$627.0K
Bank of New York Mellon Corp$18.8M247,6450.00%31q+5.0%+$891.6K
SEI INVESTMENTS CO$18.6M244,3460.02%31q+17.2%+$2.7M
Nuveen, LLC$18.2M238,9920.00%6q+23.2%+$3.4M
VANGUARD FIDUCIARY TRUST CO$17.0M223,9860.00%2q+2.6%+$434.8K
Empowered Funds, LLC$15.5M204,0120.08%2q+52.8%+$5.4M
BARCLAYS PLC$15.0M197,5090.00%31q+24.4%+$2.9M
PDT Partners, LLC$14.5M191,2530.76%3q+64.6%+$5.7M
FEDERATED HERMES, INC.$14.0M184,1410.02%31q+15.4%+$1.9M
Allianz Asset Management GmbH$13.8M181,8380.01%31q+49.1%+$4.6M
Qube Research & Technologies Ltd$13.6M178,2490.01%22q+21.2%+$2.4M
SUSQUEHANNA INTERNATIONAL GROUP, LLP$12.0M
incl. $9.8M options CALL+PUT
28,8580.00%29q-28.6%-$4.8M
JANE STREET GROUP, LLC$12.0M
incl. $6.8M options CALL+PUT
68,1850.00%24q+40.0%+$3.4M
WELLS FARGO & COMPANY/MN$11.9M155,8670.00%31q-12.5%-$1.7M
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$11.5M150,6690.02%4q+19.8%+$1.9M
D. E. Shaw & Co., Inc.$11.1M145,4480.01%18q+137.4%+$6.4M
CANYON CAPITAL ADVISORS LLC$10.6M139,7001.20%2q-54.2%-$12.6M
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$10.6M139,4460.03%6q-9.1%-$1.1M
DNB Asset Management AS$9.9M130,8330.03%9q-21.5%-$2.7M
Russell Investments Group, Ltd.$9.5M125,1240.01%31q+32.7%+$2.3M
Trexquant Investment LP$8.6M113,4130.05%newNEW
CANADA PENSION PLAN INVESTMENT BOARD$7.8M102,9000.00%9q-58.4%-$11.0M
Allspring Global Investments Holdings, LLC$7.7M106,0660.01%19q+38.1%+$2.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$7.6M100,2790.00%14q-5.6%-$455.6K
Man Group plc$7.5M98,5820.01%5q-34.4%-$3.9M
Aventail Capital Group, LP$7.2M94,6000.41%newNEW
Woodline Partners LP$7.2M94,2320.02%2q-7.7%-$596.8K
Invesco Ltd.$7.1M93,9100.00%31qHELD
NORDEA INVESTMENT MANAGEMENT AB$6.8M89,8070.01%22q-3.9%-$276.3K
IMC-Chicago, LLC$6.7M CALL+PUToptions only0.00%2qOPTIONS
TOWLE & CO$6.5M85,7932.21%newNEW
BNP PARIBAS FINANCIAL MARKETS$6.4M83,5480.00%31q+9.6%+$556.6K
Universal- Beteiligungs- und Servicegesellschaft mbH$5.7M74,8050.01%7q+1.8%+$102.6K
KESTREL INVESTMENT MANAGEMENT CORP$5.6M74,1503.07%6qHELD
Rock Point Advisors, LLC$5.5M71,6881.33%10q-16.3%-$1.1M
AMERIPRISE FINANCIAL INC$5.4M70,5530.00%31qHELD
MARTINGALE ASSET MANAGEMENT L P$5.3M70,1550.13%5q+0.6%+$31.7K
Swiss National Bank$5.1M67,7000.00%31q+2.0%+$98.9K
ENVESTNET ASSET MANAGEMENT INC$5.1M66,7470.00%26q-8.2%-$452.7K
PRUDENTIAL FINANCIAL INC$5.0M65,3300.01%31q+1.8%+$86.7K
Caisse de depot et placement du Quebec$4.8M63,5130.01%2q+159.2%+$3.0M
RAYMOND JAMES FINANCIAL INC$4.4M57,7420.00%7q-5.1%-$234.1K
Engineers Gate Manager LP$4.3M57,0710.06%10q+723.5%+$3.8M
Edgestream Partners, L.P.$4.3M56,6650.13%newNEW
UBS Group AG$4.1M53,5610.00%31q-30.6%-$1.8M
Tidal Investments LLC$3.9M51,6600.01%14q+61.8%+$1.5M
XTX Topco Ltd$3.9M50,8310.05%3q+774.9%+$3.4M
AQR CAPITAL MANAGEMENT LLC$3.8M50,5200.00%31q-0.8%-$30.9K
Point72 Asset Management, L.P.$3.8M49,7510.00%newNEW
CITADEL ADVISORS LLC$3.8M CALL+PUToptions only0.00%31qOPTIONS
Defiance ETFs, LLC$3.7M51,6600.05%2q+129.7%+$2.1M
RHUMBLINE ADVISERS$3.5M46,5000.00%31q+6.6%+$219.1K
PRICE T ROWE ASSOCIATES INC /MD/$3.5M45,4570.00%31q+17.7%+$520.9K
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$3.4M44,8000.01%3q-39.7%-$2.2M
ALGERT GLOBAL LLC$3.3M43,5100.04%newNEW
DENALI ADVISORS LLC$3.3M42,9000.33%8q-22.0%-$920.1K
Brevan Howard Capital Management LP$3.2M42,4590.02%2q+38.9%+$904.7K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC$3.2M41,6580.01%31q-14.3%-$527.3K
OPPENHEIMER ASSET MANAGEMENT INC.$3.0M39,0100.03%2q-0.6%-$17.6K
CSM Advisors, LLC$3.0M38,8800.06%3q+7.3%+$201.6K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$2.9M38,4550.00%31q-3.1%-$94.9K
ISTHMUS PARTNERS, LLC$2.9M38,1200.28%16q+3.5%+$99.3K
DEUTSCHE BANK AG\$2.8M36,3240.00%34q-76.7%-$9.1M
DEAN INVESTMENT ASSOCIATES, LLC$2.6M34,6310.35%5q+339.5%+$2.0M
Ausbil Investment Management Ltd$2.5M35,1471.15%15q+219.6%+$1.7M
Legal & General Group Plc$2.5M33,1440.00%31q+4.0%+$97.8K
VANGUARD ASSET MANAGEMENT, Ltd$2.4M30,9880.00%2qHELD
HSBC HOLDINGS PLC$2.3M29,8460.00%2q+60.0%+$844.9K

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-10-3013G/AVanguard Portfolio Management5.0%

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Officers and directors

DateInsiderRoleSideSharesValue
2026-05-08James Wilbert W JrDirectorSold3,299$242.8K
2026-05-08Kershaw Justin ADirectorSold2,799$206.2K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 202650$41.0M464,0401312110.0%
Q2 2026331$2.5B32,895,71561115871.2%
Q1 2026307$1.9B32,489,77743100950.9%
Q4 2025313$2.1B32,388,56850901071.2%
Q3 2025305$2.1B32,938,66757841141.6%
Q2 2025302$2.4B33,093,458461041051.3%
Q1 2025302$2.1B33,757,036471091031.6%
Q4 2024338$3.2B37,661,713351131231.5%
Q3 2024372$3.2B37,378,861621331282.1%
Q2 2024458$5.6B40,571,953651781491.8%
Q1 2024467$7.9B40,719,184701431711.7%
Q4 2023452$6.6B40,282,451561631441.7%
Q3 2023418$5.9B39,086,856421541391.9%
Q2 2023415$6.3B39,029,413581381512.8%
Q1 2023399$5.8B41,129,348711331411.9%
Q4 2022375$4.6B39,655,77198831372.0%
Q3 2022291$33.8B433,844,089261031110.1%
Q2 2022313$35.9B431,997,495431011260.1%
Q1 2022316$36.7B372,346,10948981260.1%
Q4 2021310$47.8B429,363,02855951100.1%
Q3 2021270$41.9B481,525,06547791100.1%
Q2 2021251$34.7B487,603,5513991890.0%
Q1 2021235$9.5B132,051,2397952920.1%
Q4 2020183$4.2B102,783,4833552750.2%
Q3 2020175$3.3B144,964,6562562690.0%
Q2 2020166$3.8B138,936,8002758580.0%
Q1 2020168$3.3B158,698,2831856720.0%
Q4 2019208$6.0B147,920,2924763820.0%
Q3 2019179$1.8B60,870,4112754750.1%
Q2 2019168$1.6B62,529,4652567530.1%
Q1 2019174$1.2B57,288,3382853690.0%
Q4 2018164$1.7B85,907,5336310.1%