SEC Form 4
Owens Corning (OC) insider trading
In the 12 months to Oct 23, 2026, 2 OC insiders reported open-market sales of $447.0K across 3 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $447.0K
- 3 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 2 of 3
- $214.2K of $447.0K sold (48%)
Who traded OC, and when
- Sale
- Sale, pre-arranged (10b5-1)
OC daily close from Oct 23, 2025 to Oct 23, 2026, between $98.28 and $158.96, last $114.57. 3 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Mari Doerfler, Vice President and Controller: sold $232.9K across 1 filing, first filed May 12, 2026, last May 12, 2026. Rachel Barthelemy Marcon, President, Doors: sold $214.2K across 2 filings, first filed May 29, 2026, last Sep 1, 2026.
Largest mark · tap a row for others
Mari Doerfler · Vice President and Controller
Sale $232,884
1,926 shares at $120.92 avg
Filed May 12, 2026 · traded May 8
Close on filing date $119.83
Mari Doerfler · Vice President and Controller
Vice President and Controller
$232.9K soldRachel Barthelemy Marcon · President, Doors
President, Doors
$214.2K soldHas Owens Corning's CEO sold stock?
No. Brian Chambers (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
3 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Mari Doerfler | Vice President and Controller | $232.9K | — | 1 | — | |
| Rachel Barthelemy Marcon | President, Doors | $214.2K | — | 2 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Rachel Barthelemy Marcon President, Doors | SalePre-arranged (10b5-1) | 900 | $144.07 | $129.7K | 21,449 | |
traded | Rachel Barthelemy Marcon President, Doors | SalePre-arranged (10b5-1) | 700 | $120.71 | $84.5K | 15,848 | |
traded | Mari Doerfler Vice President and Controller | Sale | 1,926 | $120.92 | $232.9K | 3,093 |
GET /stocks/filings/vX/form-4?tickers=OC&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"OC",
"OCw"
],
"issuer_cik": "0001370946",
"owner_cik": "0002066981",
"accession_number": "0001370946-26-000207",
"form_type": "4",
"filing_date": "2026-09-01",
"period_of_report": "2026-08-28",
"issuer_name": "Owens Corning",
"issuer_trading_symbol": "OC",
"owner_name": "Marcon Rachel Barthelemy",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President, Doors",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "$.01 Par Value Common",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-08-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 900,
"transaction_price_per_share": 144.07,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 21449,
"transaction_value": 129663,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"OC",
"OCw"
],
"issuer_cik": "0001370946",
"owner_cik": "0002066981",
"accession_number": "0002066981-26-000002",
"form_type": "4",
"filing_date": "2026-05-29",
"period_of_report": "2026-05-28",
"issuer_name": "Owens Corning",
"issuer_trading_symbol": "OC",
"owner_name": "Marcon Rachel Barthelemy",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President, Doors",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "$.01 Par Value Common",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-05-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 700,
"transaction_price_per_share": 120.71,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 15848,
"transaction_value": 84497,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 122 records
- Tax withholding31 records
- Grants and awards91 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for OC every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.