Updated Jul 16, 2026
DORMAN MARGARET K has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $542K.

Margaret K. Dorman is a corporate director associated with Range Resources Corp, an independent exploration and production company focused on natural gas operations in the Marcellus Shale. She has been involved in the company as a director, with limited trading activity reported in SEC filings.
| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-15 | RRC | RANGE RESOURCES CORP | J — Other acquisition / disposition | 5.3K | $41.49 | $218K |
| 2026-05-15 | RRC | RANGE RESOURCES CORP | J — Other acquisition / disposition | 5.3K | $41.49 | $218K |
| 2026-05-15 | RRC | RANGE RESOURCES CORP | A — Grant or award | 5.0K | $41.27 | $205K |
| 2026-03-19 | RRC | RANGE RESOURCES CORP | S — Open-market sale | 2.7K | $43.24 | $116K |
| 2026-03-19 | RRC | RANGE RESOURCES CORP | S — Open-market sale | 9.8K | $43.42 | $426K |
| 2025-05-08 | RRC | RANGE RESOURCES CORP | A — Grant or award | 5.3K | $38.99 | $205K |
| 2025-05-08 | RRC | RANGE RESOURCES CORP | J — Other acquisition / disposition | 5.4K | $36.73 | $199K |
| 2025-05-08 | RRC | RANGE RESOURCES CORP | J — Other acquisition / disposition | 5.4K | $36.73 | $199K |
Margaret K. Dorman is a corporate director associated with Range Resources Corp, an independent exploration and production company focused on natural gas operations in the Marcellus Shale. She has been involved in the company as a director, with limited trading activity reported in SEC filings.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($542K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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