ATKRNYSEMiscellaneous Electrical Machinery, Equipment & SuppliesFiscal year ends September 30
Atkore Inc.
Financials through Q3 FY2026, quarter ended Jun 26, 2026Last filing: 10-Q on Aug 4, 2026
$94.96+0.04 (+0.04%)
Close on Oct 16, 2026
- Market cap
- $3.23B
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
97.4%
33M of 34M shares
Institutional holders
325
66 new, 39 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 5 sales
Net sold $607.70K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Gates Capital Management, Inc. | 3,265,061 | 9.50% | 13G (passive) amendment | Mar 31, 2025 |
| Gates Capital Management GP, LLC | 2,628,189 | 7.80% | 13G (passive) amendment | Jun 30, 2025 |
| BlackRock, Inc. | 2,462,609 | 7.30% | 13G (passive) amendment | Sep 30, 2025 |
| Vanguard Portfolio Management | 2,117,497 | 6.27% | 13G (passive) | Mar 31, 2026 |
| Stowers Institute for Medical Research | 1,775,158 | 5.30% | 13G (passive) | Jun 30, 2026 |
| Vanguard Capital Management | 1,773,377 | 5.25% | 13G (passive) | Mar 31, 2026 |
| The Charger Corporation | 1,720,986 | 5.00% | 13G (passive) | Mar 31, 2025 |
| Gates Capital Management, L.P. | 1,710,192 | 5.10% | 13G (passive) amendment | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ATKR | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,116,222 | 9.23% | $236.96M | +489,431 | 0.00% |
| Vanguard Portfolio Management LLC | 2,122,380 | 6.28% | $161.39M | +31,911 | 0.01% |
| American Century Companies Inc | 1,775,158 | 5.26% | $134.98M | +336,042 | 0.06% |
| Gates Capital Management, Inc. | 1,710,192 | 5.06% | $130.04M | −975,526 | 3.13% |
| Vanguard Capital Management LLC | 1,524,252 | 4.51% | $115.90M | +9,142 | 0.00% |
| Dimensional Fund Advisors LP | 1,299,786 | 3.85% | $98.83M | +71,795 | 0.02% |
| Lsv Asset Management | 1,093,590 | 3.24% | $83.16K | +41,729 | 0.15% |
| State Street Corp | 906,421 | 2.68% | $68.92M | +71,265 | 0.00% |
| Geode Capital Management, LLC | 902,486 | 2.67% | $68.64M | +47,755 | 0.00% |
| Earnest Partners LLC | 772,294 | 2.29% | $58.73M | −5,611 | 0.21% |
| Hill City Capital, LP | 724,106 | 2.14% | $55.06M | −4,100 | 1.29% |
| T. Rowe Price Investment Management, Inc. | 647,881 | 1.92% | $49.27K | New | 0.03% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 575,607 | 1.70% | $43.77M | +42,615 | 0.05% |
| Harding Loevner LP | 567,192 | 1.68% | $43.13M | −137,670 | 0.41% |
| First Trust Advisors LP | 533,063 | 1.58% | $40.53M | −693,777 | 0.02% |
| JPMorgan Chase & Co | 520,864 | 1.54% | $39.24M | +270,556 | 0.00% |
| Jacobs Levy Equity Management, Inc | 519,275 | 1.54% | $39.49M | +175,986 | 0.14% |
| Irenic Capital Management LP | 507,613 | 1.50% | $38.60M | +493,636 | 1.85% |
| Arrowstreet Capital, Limited Partnership | 482,239 | 1.43% | $36.67M | −215,895 | 0.02% |
| Charles Schwab Investment Management Inc | 453,964 | 1.34% | $34.52M | +36,320 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 325 | 33M | 97.4% | 66 / 118 | 87 / 39 | 5M | 5M |
| Q1 2026 | 303 | 32M | 96.2% | 50 / 102 | 95 / 49 | 7M | 3M |
| Q4 2025 | 307 | 32M | 94.8% | 61 / 93 | 107 / 48 | 5M | 5M |
| Q3 2025 | 298 | 33M | 96.5% | 55 / 85 | 120 / 48 | 6M | 6M |
| Q2 2025 | 296 | 33M | 97.2% | 53 / 106 | 109 / 50 | 3M | 4M |
| Q1 2025 | 296 | 33M | 99.0% | 48 / 111 | 104 / 77 | 6M | 9M |
| Q4 2024 | 329 | 37M | 100.0% | 45 / 118 | 127 / 84 | 7M | 7M |
| Q3 2024 | 370 | 37M | 100.0% | 63 / 139 | 127 / 142 | 11M | 10M |
| Q2 2024 | 453 | 40M | 100.0% | 69 / 183 | 152 / 67 | 6M | 6M |
| Q1 2024 | 457 | 40M | 100.0% | 74 / 154 | 173 / 61 | 4M | 3M |
| Q4 2023 | 445 | 40M | 100.0% | 84 / 167 | 149 / 44 | 5M | 3M |
| Q3 2023 | 411 | 39M | 100.0% | 52 / 157 | 147 / 46 | 3M | 3M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ATKR | Value | % of fund | As of |
|---|---|---|---|---|---|
| Avantis U.S. Small Cap Value ETF | 1,383,751 | 4.10% | $114.59M | 0.42% | May 31, 2026 |
| Vanguard Total Stock Market Index Fund | 1,074,550 | 3.18% | $81.71M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 894,183 | 2.65% | $67.99M | 0.08% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 775,446 | 2.30% | $58.96M | 0.03% | Jun 30, 2026 |
| Global X U.S. Infrastructure Development ETF | 507,174 | 1.50% | $42.00M | 0.31% | May 31, 2026 |
| Vanguard Small-Cap Value Index Fund | 490,563 | 1.45% | $37.30M | 0.06% | Jun 30, 2026 |
| First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund | 403,414 | 1.19% | $30.68M | 0.25% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 387,811 | 1.15% | $29.49M | 0.03% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 374,609 | 1.11% | $27.33M | 0.08% | Jul 31, 2026 |
| iShares Russell 2000 Value ETF | 322,433 | 0.95% | $24.52M | 0.17% | Jun 30, 2026 |
| Vanguard Strategic Equity Fund | 305,956 | 0.91% | $23.26M | 0.19% | Jun 30, 2026 |
| U.S. Small Cap Value Portfolio | 251,407 | 0.74% | $18.34M | 0.09% | Jul 31, 2026 |
| T. Rowe Price Small-Cap Value Fund, Inc. | 235,106 | 0.70% | $17.88M | 0.17% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 175,447 | 0.52% | $14.53M | 0.03% | May 31, 2026 |
| Vanguard Russell 2000 Index Fund | 172,975 | 0.51% | $14.32M | 0.08% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| William E. Waltz Jr. | President and CEO, Director | 160,489 | 0.48% | Aug 31, 2026 |
| Mark F. Lamps | Pres. Safety & Infrastructure | 35,850 | 0.11% | Aug 31, 2026 |
| Daniel S. Kelly | VP, General Counsel and Sec. | 32,666 | 0.10% | Aug 31, 2026 |
| James William Alvey | Chief Accounting Officer | 5,449 | 0.02% | Aug 31, 2026 |
| John W. Pregenzer | COO & President, Electrical | 61,411 | 0.18% | Aug 31, 2026 |
| John Michael Deitzer | VP, CFO | 18,928 | 0.06% | Aug 31, 2026 |
| LeAngela W. Lowe | VP, Chief HR Officer | 36,063 | 0.11% | Aug 31, 2026 |
| David Paul Johnson | Vice President and CFO | 32,503 | 0.10% | Dec 9, 2024 |
| Michael V. Schrock | Director | 22,187 | 0.07% | Aug 31, 2026 |
| Justin A. Kershaw | Director | 18,750 | 0.06% | Aug 31, 2026 |
| Franklin S. Edmonds Jr. | Director | 2,844 | 0.01% | Aug 31, 2026 |
| Barbara Joanne Edwards | Director | 6,100 | 0.02% | Aug 31, 2026 |
| Wilbert W. James Jr | Director | 17,191 | 0.05% | Aug 31, 2026 |
| Betty R. Wynn | Director | 20,616 | 0.06% | Aug 31, 2026 |
| A. Mark Zeffiro | Director | 23,994 | 0.07% | Aug 31, 2026 |
| Jeri L. Isbell | Director | 30,656 | 0.09% | Aug 31, 2026 |
| Scott H. Muse | Director | 32,724 | 0.10% | Aug 31, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Mark F. Lamps Pres. Safety & Infrastructure | Aug 28, 2026 | Award | +47.27 | – | – | 35,850 |
| A. Mark Zeffiro Director | Aug 28, 2026 | Award | +48.35 | – | – | 23,994 |
| Daniel S. Kelly VP, General Counsel and Sec. | Aug 28, 2026 | Award | +36.37 | – | – | 32,666 |
| James William Alvey Chief Accounting Officer | Aug 28, 2026 | Award | +9.35 | – | – | 5,449 |
| Barbara Joanne Edwards Director | Aug 28, 2026 | Award | +18.13 | – | – | 6,100 |
| Franklin S. Edmonds Jr. Director | Aug 28, 2026 | Award | +9.99 | – | – | 2,844 |
| William E. Waltz Jr. President and CEO, Director | Aug 28, 2026 | Award | +241.52 | – | – | 123,653 |
| John Michael Deitzer VP, CFO | Aug 28, 2026 | Award | +47.31 | – | – | 18,928 |
| Michael V. Schrock Director | Aug 28, 2026 | Award | +8.09 | – | – | 22,187 |
| LeAngela W. Lowe VP, Chief HR Officer | Aug 28, 2026 | Award | +36 | – | – | 36,063 |
| Justin A. Kershaw Director | Aug 28, 2026 | Award | +65.87 | – | – | 18,750 |
| John W. Pregenzer COO & President, Electrical | Aug 28, 2026 | Award | +82.08 | – | – | 61,411 |
| Wilbert W. James Jr Director | Aug 28, 2026 | Award | +60.39 | – | – | 17,191 |
| Betty R. Wynn Director | Aug 28, 2026 | Award | +27.88 | – | – | 20,616 |
| Jeri L. Isbell Director | Aug 28, 2026 | Award | +97.87 | – | – | 30,656 |
| Scott H. Muse Director | Aug 28, 2026 | Award | +94.95 | – | – | 32,724 |
| Mark F. Lamps Pres. Safety & Infrastructure | Aug 10, 2026 | Sale(10b5-1 plan) | −300 | $93.75 | $28.13K | 35,803 |
| Justin A. Kershaw Director | May 29, 2026 | Award | +74.16 | – | – | 18,684 |
| John Michael Deitzer VP, CFO | May 29, 2026 | Award | +53.26 | – | – | 18,881 |
| Michael V. Schrock Director | May 29, 2026 | Award | +9.11 | – | – | 22,179 |
| Daniel S. Kelly VP, General Counsel and Sec. | May 29, 2026 | Award | +40.95 | – | – | 32,630 |
| John W. Pregenzer COO & President, Electrical | May 29, 2026 | Award | +92.41 | – | – | 61,329 |
| James William Alvey Chief Accounting Officer | May 29, 2026 | Award | +10.52 | – | – | 5,440 |
| William E. Waltz Jr. President and CEO, Director | May 29, 2026 | Award | +271.91 | – | – | 123,411 |
| LeAngela W. Lowe VP, Chief HR Officer | May 29, 2026 | Award | +40.53 | – | – | 36,027 |
| Scott H. Muse Director | May 29, 2026 | Award | +106.89 | – | – | 32,629 |
| Mark F. Lamps Pres. Safety & Infrastructure | May 29, 2026 | Award | +53.22 | – | – | 36,103 |
| Betty R. Wynn Director | May 29, 2026 | Award | +31.39 | – | – | 20,588 |
| Jeri L. Isbell Director | May 29, 2026 | Award | +110.18 | – | – | 30,558 |
| Franklin S. Edmonds Jr. Director | May 29, 2026 | Award | +11.25 | – | – | 2,834 |
| Barbara Joanne Edwards Director | May 29, 2026 | Award | +20.41 | – | – | 6,081 |
| A. Mark Zeffiro Director | May 29, 2026 | Award | +54.43 | – | – | 23,945 |
| Wilbert W. James Jr Director | May 29, 2026 | Award | +67.99 | – | – | 17,131 |
| Justin A. Kershaw Director | May 8, 2026 | Sale | −2,799 | $73.67 | $206.20K | 18,610 |
| Wilbert W. James Jr Director | May 8, 2026 | Sale | −3,299 | $73.61 | $242.84K | 17,063 |
| William E. Waltz Jr. President and CEO, Director | May 8, 2026 | Gift | +13,000 | – | – | 36,836 |
| William E. Waltz Jr. President and CEO, Director | May 8, 2026 | Gift | −13,000 | – | – | 123,139 |
| John Michael Deitzer VP, CFO | Feb 27, 2026 | Award | +67.81 | – | – | 18,827 |
| Michael V. Schrock Director | Feb 27, 2026 | Award | +11.6 | – | – | 22,170 |
| Daniel S. Kelly VP, General Counsel and Sec. | Feb 27, 2026 | Award | +52.14 | – | – | 32,589 |
| Wilbert W. James Jr Director | Feb 27, 2026 | Award | +86.57 | – | – | 20,362 |
| William E. Waltz Jr. President and CEO, Director | Feb 27, 2026 | Award | +346.2 | – | – | 136,139 |
| James William Alvey Chief Accounting Officer | Feb 27, 2026 | Award | +13.4 | – | – | 5,430 |
| Barbara Joanne Edwards Director | Feb 27, 2026 | Award | +25.98 | – | – | 6,061 |
| Betty R. Wynn Director | Feb 27, 2026 | Award | +39.35 | – | – | 20,557 |
| Franklin S. Edmonds Jr. Director | Feb 27, 2026 | Award | +14.32 | – | – | 2,822 |
| Jeri L. Isbell Director | Feb 27, 2026 | Award | +140.28 | – | – | 30,448 |
| Scott H. Muse Director | Feb 27, 2026 | Award | +136.1 | – | – | 32,522 |
| Justin A. Kershaw Director | Feb 27, 2026 | Award | +94.42 | – | – | 21,409 |
| A. Mark Zeffiro Director | Feb 27, 2026 | Award | +69.31 | – | – | 23,891 |
| Mark F. Lamps Pres. Safety & Infrastructure | Feb 27, 2026 | Award | +67.75 | – | – | 36,049 |
| LeAngela W. Lowe VP, Chief HR Officer | Feb 27, 2026 | Award | +51.6 | – | – | 35,986 |
| John W. Pregenzer COO & President, Electrical | Feb 27, 2026 | Award | +117.66 | – | – | 61,237 |
| Mark F. Lamps Pres. Safety & Infrastructure | Feb 17, 2026 | Sale(10b5-1 plan) | −1,000 | $65.78 | $65.78K | 35,982 |
| John W. Pregenzer COO & President, Electrical | Feb 2, 2026 | Tax withholding | −1,164 | $69.45 | $80.84K | 61,119 |
| Michael V. Schrock Director | Jan 29, 2026 | Award | +2,275 | – | – | 22,159 |
| Scott H. Muse Director | Jan 29, 2026 | Award | +2,275 | – | – | 32,386 |
| Justin A. Kershaw Director | Jan 29, 2026 | Award | +2,275 | – | – | 21,314 |
| Barbara Joanne Edwards Director | Jan 29, 2026 | Award | +2,275 | – | – | 6,035 |
| A. Mark Zeffiro Director | Jan 29, 2026 | Award | +2,275 | – | – | 23,822 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Lamps Mark Officer | Aug 10, 2026 | 300 | $28.11K | Aug 10, 2026 | Restricted Stock Units |
| A. Kershaw Justin Director | May 8, 2026 | 2,799 | $206.21K | May 8, 2026 | Restricted stock vesting under a registered plan |
| W. James Wilbert Jr Director | May 8, 2026 | 3,299 | $242.82K | May 8, 2026 | Restricted stock vesting under a registered plan |
| Lamps Mark Officer | Feb 17, 2026 | 1,000 | $66.66K | Feb 17, 2026 | Performance Stock Units |
| Lamps Mark Officer | Nov 17, 2025 | 1,000 | $65.01K | Nov 17, 2025 | Performance Stock Units |
| Lamps Mark Officer | Aug 15, 2025 | 1,000 | $59.19K | Aug 15, 2025 | Performance Stock Units |
| Lamps Mark Officer | May 9, 2025 | 1,000 | $68.68K | May 9, 2025 | Restricted Stock Units |
| Lamps Mark Officer | Feb 10, 2025 | 500 | $32.73K | Feb 10, 2025 | Restricted Stock Units |
| L. Isbell Jeri Director | Dec 3, 2024 | 3,353 | $315.27K | Dec 3, 2024 | Restricted stock vesting under a registered plan |
| C. Waltz Lifetime Trust Beverly Officer | Nov 27, 2024 | 59,019 | $5.47M | Nov 27, 2024 | Performance Stock Units |
| C. Waltz Lifetime Trust Beverly Officer | Nov 26, 2024 | 61,079 | $5.82M | Nov 26, 2024 | Restricted stock vesting under a registered plan |
| S. Kelly Daniel Officer | Nov 26, 2024 | 13,071 | $1.25M | Nov 26, 2024 | Restricted stock vesting under a registered plan |
| Lamps Mark Officer | Nov 12, 2024 | 500 | $47.66K | Nov 11, 2024 | Restricted Stock Units |
| P. Johnson David Former Officer | Sep 23, 2024 | 10,264 | $884.14K | Sep 23, 2024 | Restricted stock vesting under a registered plan |
| P. Johnson David Former Officer | Sep 4, 2024 | 9,566 | $833.51K | Sep 4, 2024 | Exercise of options under a registered plan |