HARVEY, IL
ATKORE INC.ATKR— Latest position per institution from SEC 13F filings
15
Institutional holders
30.42M
Total shares held
2.17B
Estimated value
1.52M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
3.94M
Value
531.40M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
3.64M
Value
229.97M
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
3.12M
Value
236.96M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
2.92M
Value
38.45K
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.12M
Value
161.39M
Filed
Jun 30, 2026
AMERICAN CENTURY COMPANIES INC
CIK 748054
Shares
1.78M
Value
134.98M
Filed
Jun 30, 2026
GATES CAPITAL MANAGEMENT, INC.
CIK 1312908
Shares
1.71M
Value
130.04M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.52M
Value
115.90M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.30M
Value
98.83M
Filed
Jun 30, 2026
LSV ASSET MANAGEMENT
CIK 1050470
Shares
1.09M
Value
83.16K
Filed
Jun 30, 2026
COLISEUM CAPITAL MANAGEMENT, LLC
CIK 1409751
Shares
947.07K
Value
55.79M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
906.42K
Value
68.92M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
902.49K
Value
68.64M
Filed
Jun 30, 2026
EARNEST PARTNERS LLC
CIK 1102578
Shares
772.29K
Value
58.73M
Filed
Jun 30, 2026
HILL CITY CAPITAL, LP
CIK 1837343
Shares
724.11K
Value
55.06M
Filed
Jun 30, 2026
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 1177719
Shares
704.77K
Value
99.01M
Filed
Mar 31, 2023
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
647.88K
Value
49.27K
Filed
Jun 30, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.
CIK 1705339
Shares
575.61K
Value
43.77M
Filed
Jun 30, 2026
HARDING LOEVNER LP
CIK 928196
Shares
567.19K
Value
43.13M
Filed
Jun 30, 2026
FIRST TRUST ADVISORS LP
CIK 1125816
Shares
533.06K
Value
40.53M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 3.94M | 531.40M | Jun 30, 2024 |
| 2 | VANGUARD GROUP INC | 102909 | 3.64M | 229.97M | Dec 31, 2025 |
| 3 | BLACKROCK, INC. | 2012383 | 3.12M | 236.96M | Jun 30, 2026 |
| 4 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 2.92M | 38.45K | Jun 30, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.12M | 161.39M | Jun 30, 2026 |
| 6 | AMERICAN CENTURY COMPANIES INC | 748054 | 1.78M | 134.98M | Jun 30, 2026 |
| 7 | GATES CAPITAL MANAGEMENT, INC. | 1312908 | 1.71M | 130.04M | Jun 30, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.52M | 115.90M | Jun 30, 2026 |
| 9 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.30M | 98.83M | Jun 30, 2026 |
| 10 | LSV ASSET MANAGEMENT | 1050470 | 1.09M | 83.16K | Jun 30, 2026 |
| 11 | COLISEUM CAPITAL MANAGEMENT, LLC | 1409751 | 947.07K | 55.79M | Mar 31, 2026 |
| 12 | STATE STREET CORP | 93751 | 906.42K | 68.92M | Jun 30, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 902.49K | 68.64M | Jun 30, 2026 |
| 14 | EARNEST PARTNERS LLC | 1102578 | 772.29K | 58.73M | Jun 30, 2026 |
| 15 | HILL CITY CAPITAL, LP | 1837343 | 724.11K | 55.06M | Jun 30, 2026 |
| 16 | WESTFIELD CAPITAL MANAGEMENT CO LP | 1177719 | 704.77K | 99.01M | Mar 31, 2023 |
| 17 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 647.88K | 49.27K | Jun 30, 2026 |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 1705339 | 575.61K | 43.77M | Jun 30, 2026 |
| 19 | HARDING LOEVNER LP | 928196 | 567.19K | 43.13M | Jun 30, 2026 |
| 20 | FIRST TRUST ADVISORS LP | 1125816 | 533.06K | 40.53M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.