Insider · CIK 0001957375
Mari Doerfler
Files at OC (Owens Corning). First filing Dec 14, 2023, latest May 12, 2026.
In brief
Mari Doerfler files SEC Form 4 as officer at OC (Owens Corning). Since Dec 14, 2023, Mari Doerfler has reported 0 open-market buys worth $0 and 5 open-market sells worth $436k, the latest filed on May 12, 2026.
A track record needs three past buys with six months of prices behind them; Mari Doerfler has 0, so none is measured yet.
The newest scored trade: sold $233k of OC on May 8, 2026, filed May 12, 2026, scored 38 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $233k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
OC: Owens Corning
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 38Weak | OCsell Owens Corning | $233k 1,926 shares | -38% | +26% from low-21% from high | |
| 23Weak | OCsell Owens Corning | $66k 441 shares | -8% | +19% from low-28% from high | |
| 29Weak | Owens Corning | $44k 240 shares | -5% | +65% from low0% from high | |
| 29Weak | Owens Corning | $44k 240 shares | -5% | +65% from low0% from high | |
| 30Weak | Owens Corning | $50k 350 shares | -7% | +72% from low-2% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 8, 2026 | OC Owens Corning | 1,926 0.00% of outstanding | $233k | May 8, 2026 | none |
| Aug 12, 2025 | OC Owens Corning | 441 0.00% of outstanding | $66k | Aug 12, 2025 | none |
| Jun 12, 2024 | OC Owens Corning | 240 0.00% of outstanding | $44k | Jun 12, 2024 | none |
| Dec 12, 2023 | OC Owens Corning | 350 0.00% of outstanding | $50k | Dec 12, 2023 | none |
Transactions
Every row this insider has filed, 15 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 8, 2026 | OC Owens Corning | SOpen-market sale $.01 Par Value Common | -1,926 | $120.92 | $233k | 3,093 | May 12, 2026 |
| Apr 6, 2026 | OC Owens Corning | FTax withholding $.01 Par Value Common | -1,167 | $106.28 | $124k | 5,019 | Apr 8, 2026 |
| Feb 4, 2026 | OC Owens Corning | AGrant or award $.01 Par Value Common | +1,473 | $132.83 | $196k | 6,333 | Feb 6, 2026 |
| Feb 5, 2026 | OC Owens Corning | FTax withholding $.01 Par Value Common | -147 | $132.23 | $19k | 6,186 | Feb 6, 2026 |
| Feb 2, 2026 | OC Owens Corning | FTax withholding $.01 Par Value Common | -379 | $122.17 | $46k | 4,860 | Feb 4, 2026 |
| Aug 12, 2025 | OC Owens Corning | SOpen-market sale $.01 Par Value Common | -441 | $149.00 | $66k | 5,239 | Aug 14, 2025 |
| Feb 5, 2025 | OC Owens Corning | AGrant or award $.01 Par Value Common | +892 | $182.15 | $162k | 5,558 | Feb 7, 2025 |
| Feb 3, 2025 | OC Owens Corning | FTax withholding $.01 Par Value Common | -458 | $180.10 | $82k | 4,666 | Feb 5, 2025 |
| Jun 12, 2024 | OC Owens Corning | SOpen-market sale $.01 Par Value Common | -240 | $182.05 | $44k | 5,091 | Jun 17, 2024 |
| Jun 12, 2024 | OC Owens Corning | SOpen-market sale $.01 Par Value Common | -240 | $182.05 | $44k | 4,954 | Jun 14, 2024 |
| Feb 5, 2024 | OC Owens Corning | FTax withholding $.01 Par Value Common | -193 | $152.99 | $30k | 5,194 | Feb 7, 2024 |
| Feb 1, 2024 | OC Owens Corning | AGrant or award $.01 Par Value Common | +995 | $0.00 | $0 | 5,595 | Feb 5, 2024 |
| Feb 1, 2024 | OC Owens Corning | FTax withholding $.01 Par Value Common | -103 | $155.68 | $16k | 5,492 | Feb 5, 2024 |
| Feb 2, 2024 | OC Owens Corning | FTax withholding $.01 Par Value Common | -105 | $155.42 | $16k | 5,387 | Feb 5, 2024 |
| Dec 12, 2023 | OC Owens Corning | SOpen-market sale $.01 Par Value Common | -350 | $143.81 | $50k | 4,600 | Dec 14, 2023 |
Questions about Mari Doerfler
Answered from the filings on this page, as of the latest one.
Is Mari Doerfler buying or selling?
In the last 12 months Mari Doerfler reported 0 open-market buys worth $0 and 1 open-market sell worth $233k on SEC Form 4; the latest was sold $233k of OC on May 8, 2026. Grants, option exercises and tax withholding are not counted.
How did Mari Doerfler's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mari Doerfler has 0.
Where does Mari Doerfler file Form 4?
Mari Doerfler has filed Form 4 at OC (Owens Corning) as Vice President and Controller. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.