Company · Ownership research

Atkore Inc. ATKR

CIK 0001666138

Form 4 transactions dated Sep 1, 2023 to Sep 29, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 114 rows; the complete set is available through the API.

Insider filings on file run through 2026-08-31.

Insider purchases & sales

Purchased: $0.00
Sold: $51.99M

Sep 1, 2023 – Aug 31, 2026
Available records · partial months are marked ·

202410 of 18 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2024-12-03	Isbell Jeri L Director	Sale	$315.27K 3,353 shares sold	11.59% sold Direct holding	▾
2024-11-27	Waltz William E Jr. President and CEO · Director	Sale	$5.47M 59,019 shares sold	82.42% sold Trust holding	▾
2024-11-26	Kelly Daniel S VP, General Counsel and Sec.	Sale	$1.25M 13,071 shares sold	32.20% sold Direct holding	▾
2024-11-26	Waltz William E Jr. President and CEO · Director	Sale	$5.82M 61,079 shares sold	46.03% sold Trust holding	▾
2024-11-11	Lamps Mark F. Pres. Safety & Infrastructure	Sale10b5-1 footnote	$48.27K 500 shares sold	1.78% sold Direct holding	▾
2024-08-12	Lamps Mark F. Pres. Safety & Infrastructure	Sale10b5-1 footnote	$47.73K 500 shares sold	1.75% sold Direct holding	▾
2024-06-03	James Wilbert W Jr Director	Sale	$91.78K 599 shares sold	3.68% sold Direct holding	▾
2024-05-22	Zeffiro A Mark Director	Sale	$308.22K 2,000 shares sold	9.37% sold Direct holding	▾
2024-05-14	Lamps Mark F. Pres. Safety & Infrastructure	Sale10b5-1 footnote	$78.83K 500 shares sold	1.72% sold Direct holding	▾
2024-03-14	Lowe LeAngela W. VP, Chief HR Officer	Sale	$1.14M 6,500 shares sold	20.26% sold Direct holding	▾

Showing 18 / 18 record groups in 2024. The complete set is available through the API.

Atkore Inc. · ATKR

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 18 of 18 purchase / sale groups and 30 of 114 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"ATKR","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.