Vault-13

ATKORE INC ATKR

COM · Common Stock · CUSIP 047649108 · ISIN US0476491081

300 institutional holders
41,330,79441.3m shares reported held*
104.1% of all shares outstanding*
$3.2bnreported value*

* 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 ($1.4m this quarter). Holder counts are more reliable. Shares outstanding: 39.7m as of 2022-11-11, 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 ≈ $77.82. Options: 11 managers hold calls ($28.3m notional), 11 hold puts ($16.8m).

Biggest calls

CITADEL ADVISORS LLC — $19.2m247.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $4.5m57.2k shares
JANE STREET GROUP, LLC — $1.5m19.7k shares
SIMPLEX TRADING, LLC — $871.0k11.2k shares
PEAK6 Investments LLC — $638.0k8.2k shares
WOLVERINE TRADING, LLC — $452.0k5.9k shares
TUDOR INVESTMENT CORP ET AL — $373.0k4.8k shares
GROUP ONE TRADING LLC — $358.0k4.6k shares
TWO SIGMA SECURITIES, LLC — $335.0k4.3k shares
Walleye Trading LLC — $47.0k600 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $9.3m119.1k shares
CITADEL ADVISORS LLC — $2.6m33.6k shares
JANE STREET GROUP, LLC — $2.2m27.8k shares
TWO SIGMA SECURITIES, LLC — $693.0k8.9k shares
TUDOR INVESTMENT CORP ET AL — $521.0k6.7k shares
WOLVERINE TRADING, LLC — $521.0k6.8k shares
SIMPLEX TRADING, LLC — $427.0k5.5k shares
Walleye Trading LLC — $327.0k4.2k shares
PEAK6 Investments LLC — $148.0k1.9k shares
GROUP ONE TRADING LLC — $117.0k1.5k 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.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution filed 2025-10-17 7.3% 2.5m≈ $187.3m 2025-10-17
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 6.3% new 2.1m≈ $161.0m 2026-04-28
AMERICAN CENTURY INVESTMENT MANAGEMENT INC 13G · institution new · filed 2026-08-14 5.3% new 1.8m≈ $135.0m 2026-08-14
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 5.2% new 1.8m≈ $134.8m 2026-04-29
Gates Capital Management, Inc. 13G · institution -2.7 pts · filed 2026-08-14 5.1% -2.7 pts 1.7m≈ $130.0m 2026-08-14

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 Q3 2022

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)

BuyingSelling
505Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 3 sellingQ1 22: 0 buyingQ1 22: 4 sellingQ1 22Q2 22: 0 buyingQ2 22: 5 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—3$1.2m—
Q1 20220—4$6.2m—
Q2 20220—5$6.7m—
Q3 20220—0——

None reported in Q3 2022.

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 4,759,5624.8m $370.3m $370.3m 0.01% —
2 BlackRock Inc. 0.01% of their portfolio New York, NY 3,239,4563.2m $252.1m $252.1m 0.01% —
3 FMR LLC 0.02% of their portfolio BOSTON, MA 2,588,8822.6m $201.4m $201.4m 0.02% —
4 MACQUARIE GROUP LTD 0.14% of their portfolio Sydney, NSW 2000, C3 1,507,3591.5m $117.3m $117.3m 0.14% —
5 Allspring Global Investments Holdings, LLC 0.18% of their portfolio CHARLOTTE, NC 1,305,3831.3m $101.6m $101.6m 0.18% —
6 WESTFIELD CAPITAL MANAGEMENT CO LP 0.73% of their portfolio BOSTON, MA 1,186,0931.2m $92.3m $92.3m 0.73% —
7 River Road Asset Management, LLC 1.33% of their portfolio LOUISVILLE, KY 1,151,4191.2m $89.6m $89.6m 1.33% —
8 LSV ASSET MANAGEMENT 0.20% of their portfolio CHICAGO, IL 1,120,3041.1m $87.2m $87.2m 0.20% —
9 Gates Capital Management, Inc. 3.60% of their portfolio New York, NY 1,110,8181.1m $86.4m $86.4m 3.60% —
10 AMERICAN CENTURY COMPANIES INC 0.07% of their portfolio KANSAS CITY, MO 1,008,1821.0m $78.4m $78.4m 0.07% —
11 DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio AUSTIN, TX 1,000,9911.0m $77.9m $77.9m 0.03% —
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 908,309908.3k $70.7m $70.7m 0.00% —
13 FULLER & THALER ASSET MANAGEMENT, INC. 0.50% of their portfolio SAN MATEO, CA 886,579886.6k $69.0m $69.0m 0.50% —
14 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 879,337879.3k $69.0m $69.0m 0.01% —
15 Aberdeen Group plc 0.17% of their portfolio EDINBURGH, X0 745,884745.9k $58.0m $58.0m 0.17% —
16 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 636,512636.5k $49.5m $49.5m 0.02% —
17 PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio BALTIMORE, MD 613,228613.2k $47.7m $47.7m 0.01% —
18 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.06% of their portfolio BOSTON, MA 551,724551.7k $42.9m $42.9m 0.06% —
19 Zurcher Kantonalbank (Zurich Cantonalbank) 0.25% of their portfolio ZURICH, V8 534,099534.1k $41.6m $41.6m 0.25% —
20 MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio NEW YORK, NY 477,751477.8k $37.2m $37.2m 0.05% —
21 FEDERATED HERMES, INC. 0.11% of their portfolio PITTSBURGH, PA 473,695473.7k $36.9m $36.9m 0.11% —
22 PRUDENTIAL FINANCIAL INC 0.06% of their portfolio NEWARK, NJ 465,988466.0k $36.3m $36.3m 0.06% —
23 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 458,514458.5k $35.7m $35.7m 0.01% —
24 Capital Research Global Investors 0.01% of their portfolio Los Angeles, CA 436,200436.2k $33.9m $33.9m 0.01% —
25 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 435,819435.8k $33.9m $33.9m 0.01% —
26 LAZARD ASSET MANAGEMENT LLC 0.05% of their portfolio NEW YORK, NY 419,478419.5k $32.6m $32.6m 0.05% —
27 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 410,434410.4k $31.9m $31.9m 0.01% —
28 NORGES BANK 0.01% of their portfolio OSLO, Q8 406,979407.0k $31.7m $31.7m 0.01% —
29 VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio San Antonio, TX 368,484368.5k $28.7m $28.7m 0.03% —
30 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 356,900356.9k $27.8m $27.8m 0.01% —
31 E. Ohman J:or Asset Management AB 1.17% of their portfolio STOCKHOLM, V7 330,498330.5k $25.7m $25.7m 1.17% —
32 RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio NEW YORK, NY 309,800309.8k $24.1m $24.1m 0.03% —
33 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 286,162286.2k $22.3m $22.3m 0.00% —
34 SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio London, X0 284,590284.6k $22.1m $22.1m 0.04% —
35 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 261,020261.0k $20.3m $20.3m 0.00% —
36 GW&K Investment Management, LLC 0.22% of their portfolio BOSTON, MA 252,868252.9k $19.7m $19.7m 0.22% —
37 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 239,872239.9k $18.7m $18.7m 0.01% —
38 CREDIT SUISSE AG/ 0.02% of their portfolio ZURICH, V8 238,365238.4k $18.5m $18.5m 0.02% —
39 Aperture Investors, LLC 2.91% of their portfolio New York, NY 227,992228.0k $17.7m $17.7m 2.91% —
40 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 227,117227.1k $17.7m $17.7m 0.00% —
41 Mirae Asset Global Investments Co., Ltd. 0.04% of their portfolio SEOUL, M5 212,801212.8k $16.6m $16.6m 0.04% —
42 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 206,438206.4k $16.1m $16.1m 0.01% —
43 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 204,144204.1k $15.9m $15.9m 0.01% —
44 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 196,818196.8k $15.3m $15.3m 0.00% —
45 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.12% of their portfolio NEW YORK, NY 194,954195.0k $15.2m $15.2m 0.12% —
46 Allianz Asset Management GmbH 0.03% of their portfolio MUNICH, 2M 185,984186.0k $14.5m $14.5m 0.03% —
47 VAN DEN BERG MANAGEMENT I, INC 4.29% of their portfolio AUSTIN, TX 185,883185.9k $14.5m $14.5m 4.29% —
48 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 183,323183.3k $14.3m $14.3m 0.02% —
49 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 0.24% of their portfolio Stamford, CT 178,988179.0k $13.9m $13.9m 0.24% —
50 Balyasny Asset Management L.P. 0.05% of their portfolio Chicago, IL 172,986173.0k $13.5m $13.5m 0.05% —
51 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 169,694169.7k $13.2m $13.2m 0.00% —
52 SEI INVESTMENTS CO 0.02% of their portfolio OAKS, PA 142,274142.3k $11.1m $11.1m 0.02% —
53 COMERICA BANK 0.11% of their portfolio DALLAS, TX 138,759138.8k $13.0m $13.0m 0.11% —
54 NORDEA INVESTMENT MANAGEMENT AB 0.02% of their portfolio STOCKHOLM, V7 135,305135.3k $10.6m $10.6m 0.02% —
55 Man Group plc 0.05% of their portfolio LONDON, X0 133,559133.6k $10.4m $10.4m 0.05% —
56 ROYCE & ASSOCIATES LP 0.11% of their portfolio New York, NY 126,334126.3k $9.8m $9.8m 0.11% —
57 AXA S.A. 0.02% of their portfolio PARIS, I0 123,000123.0k $9.6m $9.6m 0.02% —
58 RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio ST PETERSBURG, FL 120,115120.1k $9.3m $9.3m 0.01% —
59 FIRST TRUST ADVISORS LP 0.01% of their portfolio Wheaton, IL 117,658117.7k $9.2m $9.2m 0.01% —
60 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.05% of their portfolio JUPITER, FL 114,102114.1k $8.9m $8.9m 0.05% —
61 SEIZERT CAPITAL PARTNERS, LLC 0.50% of their portfolio BIRMINGHAM, MI 113,778113.8k $8.9m $8.9m 0.50% —
62 PEREGRINE CAPITAL MANAGEMENT LLC 0.28% of their portfolio MINNEAPOLIS, MN 110,823110.8k $8.6m $8.6m 0.28% —
63 Brandywine Global Investment Management, LLC 0.08% of their portfolio PHILADELPHIA, PA 108,489108.5k $8.4m $8.4m 0.08% —
64 Swiss National Bank 0.01% of their portfolio ZURICH, V8 102,200102.2k $8.0m $8.0m 0.01% —
65 Harber Asset Management LLC 2.47% of their portfolio Asheville, NC 101,707101.7k $7.9m $7.9m 2.47% —
66 PALISADE CAPITAL MANAGEMENT, LP 0.22% of their portfolio FORT LEE, NJ 101,183101.2k $7.9m $7.9m 0.22% —
67 Arosa Capital Management LP 2.77% of their portfolio MIAMI BEACH, FL 100,000100.0k $7.8m $7.8m 2.77% —
68 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 97,56297.6k $7.6m $7.6m 0.01% —
69 Skandinaviska Enskilda Banken AB (publ) 0.06% of their portfolio STOCKHOLM, V7 96,60096.6k $7.5m $7.5m 0.06% —
70 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio BALA CYNWYD, PA 93,83293.8k $7.3m $7.3m 0.01% —
71 Homestead Advisers Corp 0.21% of their portfolio Arlington, VA 89,70089.7k $7.0m $7.0m 0.21% —
72 NORTH POINT PORTFOLIO MANAGERS CORP/OH 1.27% of their portfolio ORANGE VILLAGE, OH 87,45187.5k $6.8m $6.8m 1.27% —
73 HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.03% of their portfolio Los Angeles, CA 84,29084.3k $6.6m $6.6m 0.03% —
74 LOOMIS SAYLES & CO L P 0.01% of their portfolio BOSTON, MA 78,04078.0k $6.1m $6.1m 0.01% —
75 Ensign Peak Advisors, Inc 0.01% of their portfolio SALT LAKE CITY, UT 76,33576.3k $5.9m $5.9m 0.01% —
76 Legal & General Group Plc 0.00% of their portfolio London, X0 74,51474.5k $5.8m $5.8m 0.00% —
77 Phocas Financial Corp. 0.88% of their portfolio ALAMEDA, CA 72,84272.8k $5.7m $5.7m 0.88% —
78 ALGERT GLOBAL LLC 0.34% of their portfolio SAN FRANCISCO, CA 72,65572.7k $5.7m $5.7m 0.34% —
79 Ziegler Capital Management, LLC 0.25% of their portfolio CHICAGO, IL 72,42972.4k $5.6m $5.6m 0.25% —
80 AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio Greenwich, CT 70,82670.8k $5.5m $5.5m 0.01% —
81 Alberta Investment Management Corp 0.04% of their portfolio EDMONTON, A0 67,90067.9k $5.3m $5.3m 0.04% —
82 J.P. Morgan Private Wealth Advisors LLC 0.01% of their portfolio SAN FRANCISCO, CA 67,77367.8k $5.3m $5.3m 0.01% —
83 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 66,50866.5k $5.2m $5.2m 0.01% —
84 TUDOR INVESTMENT CORP ET AL 0.12% of their portfolio STAMFORD, CT 63,24863.2k $4.9m $4.9m 0.12% —
85 Cubist Systematic Strategies, LLC 0.04% of their portfolio STAMFORD, CT 62,89662.9k $4.9m $4.9m 0.04% —
86 ExodusPoint Capital Management, LP 0.07% of their portfolio NEW YORK, NY 61,22661.2k $4.8m $4.8m 0.07% —
87 WESTPAC BANKING CORP 0.07% of their portfolio SYDNEY, C3 58,55158.6k $4.6m $4.6m 0.07% —
88 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 57,74057.7k $4.5m $4.5m 0.01% —
89 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 57,09357.1k $4.4m $4.4m 0.01% —
90 TEACHER RETIREMENT SYSTEM OF TEXAS 0.03% of their portfolio AUSTIN, TX 56,40456.4k $4.4m $4.4m 0.03% —
91 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 55,33655.3k $4.3m $4.3m 0.01% —
92 CAPITAL GROWTH MANAGEMENT LP 0.56% of their portfolio BOSTON, MA 55,00055.0k $4.3m $4.3m 0.56% —
93 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 54,28354.3k $4.2m $4.2m 0.01% —
94 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 53,50053.5k $4.2m $4.2m 0.00% —
95 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 53,37853.4k $4.2m $4.2m 0.01% —
96 ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio Boston, MA 52,36552.4k $4.1m $4.1m 0.02% —
97 GLOBEFLEX CAPITAL L P 0.68% of their portfolio SAN DIEGO, CA 51,02551.0k $4.0m $4.0m 0.68% —
98 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 50,78550.8k $4.0m $4.0m 0.00% —
99 Livforsakringsbolaget Skandia, Omsesidigt 0.48% of their portfolio Stockholm, V7 49,90049.9k $3.9m $3.9m 0.48% —
100 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 47,70047.7k $3.7m $3.7m 0.00% —