As of the latest Form 4 filed May 29, 2026.
What Owens Corning Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 46 most recent filings for OC.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-29 | 2026-05-28 | Marcon Rachel Barthelemy President, Doors | SSale | −700.00 | $120.71 | $84.5K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | FESTA ALFRED E Director | AAward | +407.00 | $121.67 | $49.5K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Martin Paul Edward Director | AAward | +382.00 | $121.67 | $46.5K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Nimocks Suzanne P Director | AAward | +414.00 | $121.67 | $50.4K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Lonergan Edward F Director | AAward | +750.00 | $121.67 | $91.3K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Doerfler Mari Vice President and Controller | SSale | −1.93K | $120.92 | $233K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Collins Michelle T Director | AAward | +478.00 | $121.67 | $58.2K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Elsner Adrienne Director | AAward | +382.00 | $121.67 | $46.5K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Williams John David Director | AAward | +382.00 | $121.67 | $46.5K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | CORDEIRO EDUARDO E Director | AAward | +407.00 | $121.67 | $49.5K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | CORDEIRO EDUARDO E Director | AAward | +84.53 | $114.95 | $9.72K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Elsner Adrienne Director | AAward | +124.96 | $114.95 | $14.4K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Nimocks Suzanne P Director | AAward | +140.01 | $114.95 | $16.1K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Mannen Maryann T. Director | AAward | +163.01 | $114.95 | $18.7K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Lonergan Edward F Director | AAward | +350.52 | $114.95 | $40.3K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Williams John David Director | AAward | +367.15 | $114.95 | $42.2K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | FESTA ALFRED E Director | AAward | +85.36 | $114.95 | $9.81K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Martin Paul Edward Director | AAward | +52.00 | $114.95 | $5.98K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Mendez-Andino Jose EVP, Chief Innovation Officer | AAward | +100.51 | $114.95 | $11.6K | No | Form 4 ↗ |
| 2026-04-08 | 2026-04-06 | Doerfler Mari Vice President and Controller | FTax | −1.17K | $106.28 | $124K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Del Monaco Nicolas President, Roofing | FTax | −439.00 | $132.23 | $58.0K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Canovas De La Nuez Jose Manuel President, Insulation | FTax | −156.00 | $132.23 | $20.6K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Doerfler Mari Vice President and Controller | FTax | −147.00 | $132.23 | $19.4K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Chambers Brian Chair, President and CEO | FTax | −2.99K | $132.23 | $395K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Baymiller Ann Lizabeth Chief Information Officer | FTax | −415.00 | $132.23 | $54.9K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Marcon Rachel Barthelemy President, Doors | FTax | −113.00 | $132.23 | $14.9K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Beredo Gina A. EVP, GC and Secretary | FTax | −664.00 | $132.23 | $87.8K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Fister Todd W EVP & Chief Financial Officer | FTax | −1.35K | $132.23 | $179K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Del Monaco Nicolas President, Roofing | AAward | +4.52K | $132.83 | $600K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Canovas De La Nuez Jose Manuel President, Insulation | AAward | +3.91K | $132.83 | $520K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Doerfler Mari Vice President and Controller | AAward | +1.47K | $132.83 | $196K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Chambers Brian Chair, President and CEO | AAward | +27.9K | $132.83 | $3.70M | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Baymiller Ann Lizabeth Chief Information Officer | AAward | +2.26K | $132.83 | $300K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Marcon Rachel Barthelemy President, Doors | AAward | +3.91K | $132.83 | $520K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Mendez-Andino Jose EVP, Chief Innovation Officer | AAward | +3.91K | $132.83 | $520K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Beredo Gina A. EVP, GC and Secretary | AAward | +6.02K | $132.83 | $800K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Fister Todd W EVP & Chief Financial Officer | AAward | +7.53K | $132.83 | $1000K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Mendez-Andino Jose EVP, Chief Innovation Officer | FTax | −319.00 | $122.17 | $39.0K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Canovas De La Nuez Jose Manuel President, Insulation | FTax | −482.00 | $122.17 | $58.9K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Baymiller Ann Lizabeth Chief Information Officer | FTax | −724.00 | $122.17 | $88.5K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Fister Todd W EVP & Chief Financial Officer | FTax | −1.80K | $122.17 | $220K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Doerfler Mari Vice President and Controller | FTax | −379.00 | $122.17 | $46.3K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Del Monaco Nicolas President, Roofing | FTax | −798.00 | $122.17 | $97.5K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Chambers Brian Chair, President and CEO | FTax | −7.50K | $122.17 | $917K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Marcon Rachel Barthelemy President, Doors | FTax | −271.00 | $122.17 | $33.1K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Beredo Gina A. EVP, GC and Secretary | FTax | −1.39K | $122.17 | $170K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also OC’s full analysis or the market-wide insider trading feed. The tabs above jump to OC’s other SEC data.
Source: SEC Form 4 filings for OC, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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