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Public ownership evidence

Atkore Inc. (ATKR) Ownership Disclosures

Read ATKR insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T23:32:50.005Z

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2026-09-012026-08-28Deitzer John MichaelA47.31Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-28 and its public availability date is 2026-09-01. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0002035295-26-000006 ↗SEC 0002034019-26-000005 ↗SEC 0001845216-26-000007 ↗

Recent Form 4 activity

Inspect all 17 displayed rows: Recent Form 4 activity

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2026-09-012026-08-28Deitzer John MichaelA47.31Not reported
2026-09-012026-08-28Alvey James WilliamA9.35Not reported
2026-09-012026-08-28Edmonds Franklin S. Jr.A9.99Not reported
2026-09-012026-08-28Pregenzer John WA82.08Not reported
2026-09-012026-08-28Lowe LeAngela W.A36Not reported
2026-09-012026-08-28Lamps Mark F.A47.27Not reported
2026-09-012026-08-28Edwards Barbara JoanneA18.13Not reported
2026-09-012026-08-28Kershaw Justin AA65.87Not reported
2026-09-012026-08-28James Wilbert W JrA60.39Not reported
2026-09-012026-08-28Waltz William E Jr.A241.52Not reported
2026-09-012026-08-28Kelly Daniel SA36.37Not reported
2026-09-012026-08-28Zeffiro A MarkA48.35Not reported
2026-09-012026-08-28WYNN BETTY R.A27.88Not reported
2026-09-012026-08-28MUSE SCOTT HA94.95Not reported
2026-09-012026-08-28Isbell Jeri LA97.87Not reported
2026-09-012026-08-28SCHROCK MICHAEL VA8.09Not reported
2026-08-112026-08-10Lamps Mark F.S300Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2538,455$2,924,118None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,924,118$38,455,000None
Ensign Peak Advisors, Inc2026-03-312026-08-191,517$89,366None
Ensign Peak Advisors, Inc2025-12-312026-08-191,517$95,950None
Ensign Peak Advisors, Inc2025-09-302026-08-194,667$292,808None
Strive Financial Group ,LLC2026-06-302026-08-1830$2,281None
Hill City Capital, LP2026-06-302026-08-18724,106$55,061,020None
Empowered Funds, LLC2026-06-302026-08-18136,029$10,343,645None
Empowered Funds, LLC2026-06-302026-08-1862,963$4,787,707None
Empowered Funds, LLC2026-06-302026-08-182,712$206,220None
Empowered Funds, LLC2026-06-302026-08-182,308$175,500None
Transamerica Financial Advisors, LLC2026-06-302026-08-182$152None
Jefferies Financial Group Inc.2026-06-302026-08-1813,400$1,018,936None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1823,420$1,780,857None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-159,170$697,287None
CAXTON ASSOCIATES LLP2026-06-302026-08-1523,431$1,781,693None
SEI INVESTMENTS CO2026-06-302026-08-15211,457$16,079,190None
SEI INVESTMENTS CO2026-06-302026-08-15580$44,090None
SEI INVESTMENTS CO2026-06-302026-08-1532,309$2,456,780None
Federation des caisses Desjardins du Quebec2026-06-302026-08-1529$2,185None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15975$74,139None
Marex Group Ltd2026-06-302026-08-153,900$296,556None
Mutual Advisors, LLC2026-06-302026-08-1512,967$986,011None
EDENTREE ASSET MANAGEMENT Ltd2026-06-302026-08-151,550$117,862None
Quarry LP2026-06-302026-08-1553$4,030None
Irenic Capital Management LP2026-06-302026-08-15507,613$38,598,893None
T. Rowe Price Investment Management, Inc.2026-06-302026-08-15647,881$49,265,000None
CSM Advisors, LLC2026-06-302026-08-1538,880$2,956,000None
XTX Topco Ltd2026-06-302026-08-1550,831$3,865,189None
Crawford Fund Management, LLC2026-06-302026-08-159,600$729,984Call
Crawford Fund Management, LLC2026-06-302026-08-153,500$266,140Call
Crawford Fund Management, LLC2026-06-302026-08-153,400$258,536Call
Aquatic Capital Management LLC2026-06-302026-08-158,031$610,677None
Vinva Investment Management Ltd2026-06-302026-08-152,535$276,799None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15453,964$34,519,423None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15453,964$34,519,423None
Foundations Investment Advisors, LLC2026-06-302026-08-158$608None
Foundations Investment Advisors, LLC2026-06-302026-08-152,982$226,777None
ExodusPoint Capital Management, LP2026-06-302026-08-1523,815$1,810,893None
Defiance ETFs, LLC2026-06-302026-08-1551,660$3,741,734None
Qube Research & Technologies Ltd2026-06-302026-08-15178,249$13,554,054None
OSAIC HOLDINGS, INC.2026-06-302026-08-151$76None
OSAIC HOLDINGS, INC.2026-06-302026-08-15892$67,858None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,027$78,202None
Schonfeld Strategic Advisors LLC2026-06-302026-08-159,387$713,786None
Squarepoint Ops LLC2026-06-302026-08-1513,257$1,008,062None
Man Group plc2026-06-302026-08-1598,582$7,496,175None
Trexquant Investment LP2026-06-302026-08-15113,413$8,623,925None
MetLife Investment Management, LLC2026-06-302026-08-1519,963$1,517,987None
Engineers Gate Manager LP2026-06-302026-08-1557,071$4,339,679None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Strive Financial Group ,LLC ↗Hill City Capital, LP ↗Empowered Funds, LLC ↗Empowered Funds, LLC ↗Empowered Funds, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.