Updated Jul 16, 2026
DUNCAN RONALD A has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $1.42M.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-04 | GLIBK | GCI Liberty, Inc. | P — Open-market purchase | 35.0K | $21.06 | $737K |
| 2026-06-04 | GLIBK | GCI Liberty, Inc. | P — Open-market purchase | 25.0K | $21.01 | $525K |
| 2026-06-04 | GLIBK | GCI Liberty, Inc. | P — Open-market purchase | 5.0K | $21.11 | $106K |
| 2026-06-04 | GLIBK | GCI Liberty, Inc. | P — Open-market purchase | 2.5K | $21.05 | $53K |
| 2026-02-23 | GLIBK | GCI Liberty, Inc. | F — Tax withholding / forfeiture | 7.7K | $39.70 | $306K |
| 2026-02-23 | GLIBK | GCI Liberty, Inc. | M — Option exercise | 1.2K | $0.00 | |
| 2026-02-23 | GLIBK | GCI Liberty, Inc. | A — Grant or award | 18.4K | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 5.4K | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 839 | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 1.5K | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 14.9K | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 557 | $0.00 | |
| 2025-07-14 | GLIBK | GCI Liberty, Inc. | J — Other acquisition / disposition | 79.4K | $0.00 |
DUNCAN RONALD A is a corporate insider — currently tracked as President and CEO, Director of GCI Liberty, Inc. (GLIBK). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 4 open-market purchases ($1.42M) and 0 open-market sales () 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.
Open the live DUNCAN RONALD A profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.