Nicolas del Monaco - 10 Aug 2026 Form 4 Insider Report for Owens Corning (OC)

Reporting relationship: President, Roofing
Issuer ticker: OC
Reported as of: 10 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Aug 2026, 16:16:41 UTC
Prior SEC filing: 27 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Katherine M. Serevitch, Attorney-in-Fact

Key filing fact

Nicolas del Monaco filed Form 4 for Owens Corning (OC) on 12 Aug 2026.

Key facts

This page summarizes Nicolas del Monaco's Form 4 filing for Owens Corning (OC).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 12 Aug 2026, 16:16.

Change

Previous filing in this sequence was filed on 27 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001992511 Primary reporting owner

Del Monaco Nicolas

Relationship: President, Roofing
Address: ONE OWENS CORNING PKWY, TOLEDO
Signature: /s/ Katherine M. Serevitch, Attorney-in-Fact
Signature date: 12 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

OC transaction

$.01 Par Value Common

Award

Transaction value
Shares: +6,501
Change %: +31%
Price: $153.80^*
Shares after: 27,186
Date: 10 Aug 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Restricted stock units granted under the Owens Corning 2023 Stock Plan.

Footnote F2

The total amount of holdings reflects an acquisition on May 29, 2026 of 165 shares through the Issuer's Employee Stock Purchase Plan, which is exempt under Rule 16b-3(c).