ARMSTRONG WORLD INDUSTRIES INC insider transactions

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78. — In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

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2026-09-10	2026-09-09	Kozak Jennifer Ott	A	1,183	Not reported	Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-09 and its public availability date is 2026-09-10. Subtracting those calendar dates gives 1 day 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 accession 0000007431-26-000067 ↗SEC accession 0000007431-26-000067 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

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2026-09-10	2026-09-09	Kozak Jennifer Ott	A	1,183	Not reported	Not reported
2026-09-10	2026-09-09	Kozak Jennifer Ott	A	1,496	Not reported	Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 23 displayed rows: Officers and directors in the directory

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TEMPLIN ROY W	0001047391	5
Chiappone Charles M	0001671166	6
Grizzle Victor	0001509566	12
Hershey Mark A	0001322386	16
Kane Thomas Michael	0001499935	11
Maier Donald R.	0001537460	1
BONDERMAN DAVID	0000860866	445
Cookson David S	0001671165	3
Garland Robert C	0001377083	2
Kirchner-King Dawn M.	0001940368	1
MacNeal Brian L	0001671163	1
Mangas Thomas B	0001480367	1
McNamara Stephen F	0001438149	19
OCONNOR JAMES J	0001017988	10
Osborne William H	0001445187	20
RODRUAN WILLIAM C	0001215155	2
Romano Ellen R.	0001582947	6
VA Partners I, LLC	0001418812	790
ValueAct Capital Management, L.P.	0001351069	964
ValueAct Capital Management, LLC	0001351073	964
ValueAct Capital Master Fund, L.P.	0001464912	716
ValueAct Holdings GP, LLC	0001418813	803
ValueAct Holdings, L.P.	0001418814	803

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.