Updated Jul 16, 2026 · Last SEC filing 2026-05-29
Owens Corning (OC) has filed 11 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-29. 4 Form 8-K material event filings were reported by OC in the last 90 days. 2 Form 144 notices of proposed sale were filed for OC stock. InsiderAlpha tracks every OC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001370946 |
|---|
| Form 4 filings (90d) | 11 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-05-29 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Marcon Rachel Barthelemy | President, Doors | S — Open-market sale | 700 | $120.71 | $84K | SEC | |
| Nimocks Suzanne P | Director | A — Grant or award | 414 | $121.67 | $50K | SEC | |
| Collins Michelle T | Director | A — Grant or award | 478 | $121.67 | $58K | SEC | |
| CORDEIRO EDUARDO E | Director | A — Grant or award | 407 | $121.67 | $50K | SEC | |
| Lonergan Edward F | Director | A — Grant or award | 750 | $121.67 | $91K | SEC | |
| Martin Paul Edward | Director | A — Grant or award | 382 | $121.67 | $46K | SEC | |
| FESTA ALFRED E | Director | A — Grant or award | 407 | $121.67 | $50K | SEC | |
| Doerfler Mari | Vice President and Controller | S — Open-market sale | 1.9K | $120.92 | $233K | SEC | |
| Williams John David | Director | A — Grant or award | 382 | $121.67 | $46K | SEC | |
| Elsner Adrienne | Director | A — Grant or award | 382 | $121.67 | $46K | SEC | |
| Fister Todd W | EVP, CFO and COO | A — Grant or award | 8.1K | $122.73 | $1000K | SEC | |
| CORDEIRO EDUARDO E | Director | A — Grant or award | 85 | $114.95 | $10K | SEC | |
| Nimocks Suzanne P | Director | A — Grant or award | 140 | $114.95 | $16K | SEC | |
| Elsner Adrienne | Director | A — Grant or award | 125 | $114.95 | $14K | SEC | |
| Mannen Maryann T. | Director | A — Grant or award | 163 | $114.95 | $19K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Owens Corning (OC). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| FESTA ALFRED E | 1 | $50K |
| Nimocks Suzanne P | 1 | $50K |
| Elsner Adrienne | 1 | $46K |
| Williams John David | 1 | $46K |
| CORDEIRO EDUARDO E | 1 | $50K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in OC insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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