ATKORE INC ATKR
COM · Common Stock · CUSIP 047649108 · ISIN US0476491081
- SectorIndustrials
- IndustryMiscellaneous Electrical Machinery, Equipment & Supplies
- HeadquartersHarvey, IL
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($7.2m this quarter). Holder counts are more reliable. Shares outstanding: 33.7m as of 2025-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $70.80. Options: 12 managers hold calls ($13.9m notional), 9 hold puts ($16.3m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 300 |
| Q4 2022 | 369 |
| Q1 2023 | 395 |
| Q2 2023 | 408 |
| Q3 2023 | 413 |
| Q4 2023 | 445 |
| Q1 2024 | 456 |
| Q2 2024 | 454 |
| Q3 2024 | 371 |
| Q4 2024 | 332 |
| Q1 2025 | 299 |
| Q2 2025 | 298 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 204 | 193 |
| Q4 2023 | 221 | 194 |
| Q1 2024 | 223 | 233 |
| Q2 2024 | 247 | 218 |
| Q3 2024 | 199 | 269 |
| Q4 2024 | 151 | 210 |
| Q1 2025 | 158 | 180 |
| Q2 2025 | 151 | 159 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $32.8m | $36.0m | 1.10 |
| Q4 2024 | $19.9m | $27.5m | 1.38 |
| Q1 2025 | $13.6m | $20.3m | 1.49 |
| Q2 2025 | $13.9m | $16.3m | 1.17 |
Biggest buyers
| VICTORY CAPITAL MANAGEMENT INC | Added | +383.5k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +304.1k |
| JPMORGAN CHASE & CO | Added | +279.4k |
| FIRST TRUST ADVISORS LP | Added | +213.9k |
| AMERICAN CENTURY COMPANIES INC | Added | +172.8k |
| JANUS HENDERSON GROUP PLC | Added | +115.8k |
| Orbis Allan Gray Ltd | Added | +113.0k |
| FEDERATED HERMES, INC. | Added | +105.8k |
| WELLS FARGO & COMPANY/MN | Added | +73.2k |
| MARSHALL WACE, LLP | New | +73.0k |
Biggest sellers
| Gates Capital Management, Inc. | Reduced | -636.9k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -469.9k |
| AMERIPRISE FINANCIAL INC | Reduced | -369.1k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -198.5k |
| VANGUARD GROUP INC | Reduced | -161.3k |
| NORGES BANK | Reduced | -161.0k |
| D. E. Shaw & Co., Inc. | Reduced | -105.2k |
| Allspring Global Investments Holdings, LLC | Reduced | -100.6k |
| Pacer Advisors, Inc. | Reduced | -93.6k |
| DEUTSCHE BANK AG\ | Reduced | -93.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.3m61.3k shares |
| CITADEL ADVISORS LLC | Reduced | $2.8m39.7k shares |
| Crawford Fund Management, LLC | Added | $1.5m20.9k shares |
| JANE STREET GROUP, LLC | Added | $1.1m15.1k shares |
| Walleye Capital LLC | Added | $1.0m14.7k shares |
| Walleye Trading LLC | Added | $811.3k11.5k shares |
| CastleKnight Management LP | New | $705.5k10.0k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $557.3k7.9k shares |
| GROUP ONE TRADING LLC | Added | $500.9k7.1k shares |
| Cubist Systematic Strategies, LLC | Reduced | $310.4k4.4k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $7.7m109.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.5m63.8k shares |
| JANE STREET GROUP, LLC | Added | $1.3m18.4k shares |
| GROUP ONE TRADING LLC | Added | $1.0m14.3k shares |
| IMC-Chicago, LLC | Added | $797.2k11.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $366.0k5.2k shares |
| Walleye Capital LLC | Added | $338.6k4.8k shares |
| Walleye Trading LLC | Added | $225.8k3.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-10-17 | 7.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 6.3% |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC 13G · institution new · filed 2026-08-14 | 5.3% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
| Gates Capital Management, Inc. 13G · institution -2.7 pts · filed 2026-08-14 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 1 | $480.3k | $480.3k |
| Q4 2023 | 0 | — | 2 | $12.7m | $12.7m |
| Q1 2024 | 0 | — | 6 | $25.1m | $4.2m |
| Q2 2024 | 0 | — | 3 | $478.8k | $78.8k |
| Q3 2024 | 0 | — | 1 | $47.7k | $47.7k |
| Q4 2024 | 0 | — | 4 | $12.9m | $48.3k |
| Q1 2025 | 0 | — | 1 | $32.5k | $32.5k |
| Q2 2025 | 0 | — | 1 | $69.2k | $69.2k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-09 | Lamps Mark F. Pres. Safety & Infrastructure | Sold plan | $69.2k1.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.00% of their portfolio | 3.4m $237.0m | Reduced -161.3k |
| BlackRock, Inc. 0.00% of their portfolio | 2.7m $188.7m | Reduced -69.8k |
| Gates Capital Management, Inc. 5.59% of their portfolio | 2.6m $185.4m | Reduced -636.9k |
| FIRST TRUST ADVISORS LP 0.10% of their portfolio | 1.8m $124.0m | Added +213.9k |
| Harding Loevner LP 0.64% of their portfolio | 1.3m $94.4m | Added +41.1k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.0m $71.8m | Reduced -9.2k |
| AMERICAN CENTURY COMPANIES INC 0.04% of their portfolio | 1.0m $71.5m | Added +172.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.05% of their portfolio | 1.0m $71.4m | Added +383.5k |
| Allspring Global Investments Holdings, LLC 0.12% of their portfolio | 961.8k $70.9m | Reduced -100.6k |
| LSV ASSET MANAGEMENT 0.15% of their portfolio | 887.8k $62.6m | Reduced -18.8k |
| STATE STREET CORP 0.00% of their portfolio | 873.5k $61.6m | Added +23.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 806.4k $56.9m | Reduced -18.6k |
| River Road Asset Management, LLC 0.77% of their portfolio | 792.4k $61.0m | Added +8.1k |
| MACQUARIE GROUP LTD 0.07% of their portfolio | 785.1k $55.4m | Reduced -1.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 535.2k $37.8m | Added +279.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 489.3k $34.5m | Reduced -25.1k |
| LONDON CO OF VIRGINIA 0.18% of their portfolio | 453.9k $32.0m | Reduced -3.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 450.2k $31.8m | Added +13.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 408.7k $28.8m | Added +38.9k |
| ROYCE & ASSOCIATES LP 0.27% of their portfolio | 368.5k $26.0m | Reduced -78.9k |
| Orbis Allan Gray Ltd 0.12% of their portfolio | 364.0k $25.7m | Added +113.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.05% of their portfolio | 338.9k $23.9m | Reduced -8.9k |
| MORGAN STANLEY 0.00% of their portfolio | 324.6k $22.9m | Added +5.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 322.4k $22.7m | Reduced -198.5k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 315.2k $22.2m | Added +105.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 304.1k $21.5m | New |
| Swedbank AB 0.02% of their portfolio | 296.2k $20.9m | First filing |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 283.2k $20.0m | Reduced -469.9k |
| Anomaly Capital Management, LP 0.62% of their portfolio | 278.5k $19.6m | Reduced -56.2k |
| Pacer Advisors, Inc. 0.05% of their portfolio | 272.2k $19.2m | Reduced -93.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 269.3k $19.0m | Added +20.6k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 244.7k $17.3m | Added +4.3k |
| UBS Group AG 0.00% of their portfolio | 235.9k $16.6m | Reduced -511 |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 201.3k $14.2m | Reduced -369.1k |
| Nuveen, LLC 0.00% of their portfolio | 187.3k $13.2m | Reduced -4.5k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 179.5k $12.7m | Added +115.8k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.21% of their portfolio | 169.4k $12.0m | Reduced -3.7k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 152.3k $10.7m | Added +14.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 151.6k $10.7m | Added +73.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 150.6k $10.6m | Added +33.8k |
| GENDELL JEFFREY L 0.28% of their portfolio | 150.1k $10.6m | Reduced -49.4k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.16% of their portfolio | 135.9k $9.6m | Reduced -16.5k |
| DNB Asset Management AS 0.04% of their portfolio | 124.9k $8.8m | Reduced -13.6k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 117.2k $8.3m | Added +10.9k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 110.8k $7.8m | Reduced -93.4k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 107.2k $7.6m | Added +421 |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 104.1k $7.3m | Reduced -4.6k |
| PALISADE CAPITAL MANAGEMENT, LP 0.21% of their portfolio | 103.5k $7.3m | Reduced -3.6k |
| Cambria Investment Management, L.P. 0.48% of their portfolio | 100.5k $7.1m | Reduced -18.0k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 95.4k $6.7m | Added +5.5k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.04% of their portfolio | 94.0k $6.6m | Unchanged |
| Walleye Capital LLC 0.06% of their portfolio | 91.4k $6.5m | Added +61.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 91.2k $6.4m | Added +12.8k |
| Rock Point Advisors, LLC 1.72% of their portfolio | 86.3k $6.1m | Added +32.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 85.5k $6.0m | Added +13.6k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 85.1k $6.0m | Reduced -70.0k |
| EDENTREE ASSET MANAGEMENT Ltd 1.60% of their portfolio | 81.8k $5.8m | Added +33.6k |
| North Growth Management Ltd. 1.07% of their portfolio | 81.0k $5.7m | Added +9.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 80.8k $5.7m | Reduced -2.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 78.7k $5.5m | Added +14.7k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 78.5k $5.5m | Added +21.9k |
| KESTREL INVESTMENT MANAGEMENT CORP 3.27% of their portfolio | 77.3k $5.5m | Reduced -3.5k |
| BARCLAYS PLC 0.00% of their portfolio | 74.9k $5.3m | Added +23.4k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 73.0k $5.2m | New |
| DECADE RENEWABLE PARTNERS LP 3.99% of their portfolio | 69.7k $4.9m | Reduced -13.8k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 67.2k $4.7m | Reduced -55.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 66.9k $4.7m | Reduced -43.4k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 66.9k $4.7m | Reduced -105.2k |
| Invesco Ltd. 0.00% of their portfolio | 65.7k $4.6m | Reduced -11.3k |
| Swiss National Bank 0.00% of their portfolio | 65.7k $4.6m | Reduced -1.6k |
| CastleKnight Management LP 0.29% of their portfolio | 63.2k $4.5m | New |
| Allianz SE 0.10% of their portfolio | 62.3k $4.4m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 59.4k $4.2m | Unchanged |
| FMR LLC 0.00% of their portfolio | 59.3k $4.2m | Added +24.2k |
| Holocene Advisors, LP 0.01% of their portfolio | 56.6k $4.0m | Added +7.3k |
| Hudson Bay Capital Management LP 0.03% of their portfolio | 56.2k $4.0m | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 54.0k $3.8m | Added +1.1k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 54.0k $3.8m | Added +24.2k |
| DENALI ADVISORS LLC 0.39% of their portfolio | 53.0k $3.7m | Reduced -1 |
| EASTERLY INVESTMENT PARTNERS LLC 0.25% of their portfolio | 49.7k $3.5m | Reduced -5.9k |
| ALGERT GLOBAL LLC 0.07% of their portfolio | 45.5k $3.2m | Reduced -48.9k |
| VAN DEN BERG MANAGEMENT I, INC 0.85% of their portfolio | 42.2k $3.0m | Reduced -531 |
| Engineers Gate Manager LP 0.04% of their portfolio | 41.9k $3.0m | Reduced -12.3k |
| Legal & General Group Plc 0.00% of their portfolio | 41.3k $2.9m | Reduced -14.6k |
| Adams Wealth Management 0.55% of their portfolio | 41.2k $2.9m | Reduced -2.6k |
| CacheTech Inc. 0.53% of their portfolio | 41.2k $2.9m | Reduced -2.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 39.1k $2.8m | Reduced -500 |
| Mitsubishi UFJ Trust & Banking Corp 0.01% of their portfolio | 37.8k $2.7m | Added +6.9k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 37.2k $2.6m | Added +18.2k |
| Edgestream Partners, L.P. 0.07% of their portfolio | 35.8k $2.5m | Reduced -36.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 34.3k $2.4m | Added +2.0k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 34.0k $2.4m | Added +4.6k |
| Empowered Funds, LLC 0.03% of their portfolio | 33.6k $2.4m | Added +579 |
| Twelve Points Wealth Management LLC 0.64% of their portfolio | 33.5k $2.4m | Added +2.7k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 33.3k $2.3m | Added +1.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 33.1k $2.3m | Added +214 |
| Ausbil Investment Management Ltd 1.36% of their portfolio | 32.8k $2.3m | Added +345 |
| DEAN INVESTMENT ASSOCIATES, LLC 0.31% of their portfolio | 30.1k $2.1m | New |
| Tidal Investments LLC 0.01% of their portfolio | 28.8k $2.0m | Added +3.0k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 28.6k $2.0m | Reduced -1.4k |