Owens Corning (OC)
NYSE: OC · Abrasive, Asbestos & Misc Nonmetallic Mineral Prods · Toledo, OH · filing with the SEC since 2006
Grade5.1
◀ Past 6.2● Present 4.4▶ Future 5.1
Who owns Owens Corning
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 10% of Common Stock, as its SCHEDULE 13G/A filed Jun 4, 2026 says.
Directors and officers
20
report now, of 40 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Jun 4, 2026 · Common Stock · 9.6% in Jan 21, 2026
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 11.5% in Apr 30, 2025
What OC reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Masonite International Corporation ("Masonite")
A company bought · acquisition, legal entity · Apr 2024 · owns, named in the 10-K filed Feb 25, 2026
168 subsidiaries in 37 countries, from the list filed with the 10-K filed Feb 25, 2026.
Insider tradesForm 4
3sales
0purchases
2sales on a scheduled plan
2people selling
$400,000sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 9, 2025 to Nov 9, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 9, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window2 of 40 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Marcon Rachel Barthelemy | President, Doors | 2 | $200,000 | 2 | 0 | $0 |
| Doerfler Mari | Vice President and Controller | 1 | $200,000 | 0 | 0 | $0 |