Owens Corning's three largest insider shareholders as of April 22, 2026 are Brian Chambers (Chair, President And Ceo, 395.54K shares), Marcio A Sandri (President, Composites, 57.47K shares), Marcio A Sandri (President, Composites, 57.47K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Brian Chambers | Chair, President And Ceo | 395,537 | 0 | 27 Feb, 2026 |
| Marcio A Sandri | President, Composites | 57,470 | 0 | 07 Feb, 2025 |
| Marcio A Sandri | President, Composites | 57,470 | 0 | 07 Feb, 2025 |
| Marcio A Sandri | President, Composites | 57,470 | 0 | 07 Feb, 2025 |
| John David Williams | - | 53,790 | 0 | 13 Apr, 2026 |
| Edward F Lonergan | - | 53,353 | 0 | 13 Apr, 2026 |
| Daniel T Smith | Evp And Chief Growth Officer | 46,895 | 0 | 08 Aug, 2023 |
| Daniel T Smith | Evp And Chief Growth Officer | 46,895 | 0 | 08 Aug, 2023 |
| Daniel T Smith | Evp And Chief Growth Officer | 46,895 | 0 | 08 Aug, 2023 |
| Todd W Fister | Evp Chief Financial Officer | 44,952 | 0 | 27 Feb, 2026 |
| W Howard Morris | - | 41,915 | 0 | 14 Apr, 2025 |
| Kenneth Scott Parks | Evp Chief Financial Officer | 37,295 | 0 | 06 Feb, 2023 |
| Kenneth Scott Parks | Evp Chief Financial Officer | 37,295 | 0 | 06 Feb, 2023 |
| Gina A. Beredo | Evp, Cao Gc | 36,351 | 0 | 27 Feb, 2026 |
| Suzanne P Nimocks | - | 36,093 | 0 | 13 Apr, 2026 |
| Gunner Smith | President, Roofing | 30,053 | 0 | 25 Feb, 2025 |
| Gunner Smith | President, Roofing | 30,053 | 0 | 25 Feb, 2025 |
| Gunner Smith | President, Roofing | 30,053 | 0 | 25 Feb, 2025 |
| Maryann T. Mannen | - | 27,410 | 0 | 13 Apr, 2026 |
| Paula Russell | Evp, Chief Hr Officer | 25,988 | 0 | 14 Apr, 2025 |
| Paula Russell | Evp, Chief Hr Officer | 25,988 | 0 | 14 Apr, 2025 |
| Paula Russell | Evp, Chief Hr Officer | 25,988 | 0 | 14 Apr, 2025 |
| Christopher O Ball | President, Doors | 25,255 | 0 | 28 Feb, 2025 |
| Jose Mendez-Andino | Evp, Chief Innovation Officer | 24,430 | 0 | 13 Apr, 2026 |
| Monaco Nicolas Del | President, Roofing | 20,520 | 0 | 27 Feb, 2026 |
| Adrienne Elsner | - | 18,307 | 0 | 13 Apr, 2026 |
| De La Nuez Jose Manuel Canovas | President, Insulation | 16,635 | 0 | 27 Feb, 2026 |
| Rachel Barthelemy Marcon | President, Doors | 16,548 | 0 | 27 Feb, 2026 |
| Kelly Schmidt | Vice President And Controller | 15,472 | 0 | 08 Feb, 2023 |
| Kelly Schmidt | Vice President And Controller | 15,472 | 0 | 08 Feb, 2023 |
| Kelly Schmidt | Vice President And Controller | 15,472 | 0 | 08 Feb, 2023 |
| Eduardo E Cordeiro | - | 15,433 | 0 | 03 Mar, 2026 |
| Alfred E Festa | - | 12,506 | 0 | 13 Apr, 2026 |
| Ann Lizabeth Baymiller | Chief Information Officer | 8,797 | 0 | 27 Feb, 2026 |
| Paul Edward Martin | - | 7,618 | 0 | 13 Apr, 2026 |
| Mari Doerfler | Vice President And Controller | 5,019 | 0 | 08 Apr, 2026 |
| Michelle T Collins | - | 2,070 | 0 | 03 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Apr, 2026 | Paul Edward Martin | $.01 Par Value Common | A | 52 | $114.95 | 7,618 | D | A |
| 09 Apr, 2026 | Alfred E Festa | $.01 Par Value Common | A | 85 | $114.95 | 12,506 | D | A |
| 09 Apr, 2026 | Maryann T. Mannen | $.01 Par Value Common | A | 163 | $114.95 | 27,410 | D | A |
| 09 Apr, 2026 | Suzanne P Nimocks | $.01 Par Value Common | A | 140 | $114.95 | 36,093 | D | A |
| 09 Apr, 2026 | John David Williams | $.01 Par Value Common | A | 367 | $114.95 | 53,790 | D | A |
| 09 Apr, 2026 | Adrienne Elsner | $.01 Par Value Common | A | 125 | $114.95 | 18,307 | D | A |
| 09 Apr, 2026 | Edward F Lonergan | $.01 Par Value Common | A | 351 | $114.95 | 53,353 | D | A |
| 09 Apr, 2026 | Jose Mendez-Andino | $.01 Par Value Common | A | 101 | $114.95 | 24,430 | D | A |
| 06 Apr, 2026 | Mari Doerfler | $.01 Par Value Common | D | 1,167 | $106.28 | 5,019 | D | F |
| 27 Feb, 2026 | Edward F Lonergan | $.01 Par Value Common | A | 748 | $122.07 | 53,003 | D | A |
| 27 Feb, 2026 | Paul Edward Martin | $.01 Par Value Common | A | 381 | $122.07 | 7,566 | D | A |
| 27 Feb, 2026 | Michelle T Collins | $.01 Par Value Common | A | 476 | $122.07 | 2,070 | D | A |
| 27 Feb, 2026 | Eduardo E Cordeiro | $.01 Par Value Common | A | 406 | $122.07 | 15,433 | D | A |
| 27 Feb, 2026 | John David Williams | $.01 Par Value Common | A | 381 | $122.07 | 53,422 | D | A |
| 27 Feb, 2026 | Alfred E Festa | $.01 Par Value Common | A | 406 | $122.07 | 12,421 | D | A |
| 27 Feb, 2026 | Adrienne Elsner | $.01 Par Value Common | A | 381 | $122.07 | 18,182 | D | A |
| 27 Feb, 2026 | Maryann T. Mannen | $.01 Par Value Common | A | 412 | $122.07 | 27,247 | D | A |
| 27 Feb, 2026 | Suzanne P Nimocks | $.01 Par Value Common | A | 413 | $122.07 | 35,953 | D | A |
| 25 Feb, 2026 | Monaco Nicolas Del | $.01 Par Value Common | A | 2,643 | $0.00 | 21,638 | D | A |
| 25 Feb, 2026 | Rachel Barthelemy Marcon | $.01 Par Value Common | A | 1,322 | $0.00 | 16,941 | D | A |