GLIBK · Insider Trading
Liberty Capital Corporation Series C GCI Group Common Stock
Every open-market purchase and sale reported by GLIBK officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-04 | Ronald A Duncan | President and CEO | Buy | +67,500 | +$1.42M |
| 2026-03-04 | John C Malone | Director | Buy | +1,834 | +$79.39K |
| 2026-02-23 | Ronald A Duncan | President and CEO | MIXED | +11,875 | −$305.93K |
| 2026-01-06 | Ronald A Duncan | President and CEO | MIXED | +5,055 | −$71.52K |
| 2025-12-29 | John C Malone | Director | A | +73,845 | +$2.01M |
| 2025-12-23 | Ronald A Duncan | President and CEO | F | −174 | −$6.33K |
| 2025-12-22 | Larry E Romrell | Director | M | +682 | — |
| 2025-12-22 | Brian Deevy | Director | M | +697 | — |
| 2025-12-22 | Richard R Green | Director | M | +654 | — |
| 2025-12-22 | Ronald A Duncan | President and CEO | M | +442 | — |
| 2025-12-17 | John C Malone | Director | M | +777,782 | +$21.16M |
| 2025-12-15 | Jedd Gould | Director | M | +5,757 | +$156.59K |
| 2025-12-12 | Richard R Green | Director | M | +436 | +$11.86K |
| 2025-12-12 | Larry E Romrell | Director | M | +1,549 | +$42.13K |
| 2025-12-12 | Renee L Wilm | Chief Legal/Admin Officer | M | +696 | +$18.93K |
| 2025-12-11 | Larry E Romrell | Director | A | +24,472 deriv. | — |
| 2025-12-11 | Brian Deevy | Director | A | +24,970 deriv. | — |
| 2025-12-11 | Jedd Gould | Director | A | +21,985 deriv. | — |
| 2025-12-11 | Ronald A Duncan | President and CEO | M | +39,162 | +$1.07M |
| 2025-12-10 | Renee L Wilm | Chief Legal/Admin Officer | A | +15,547 deriv. | — |
| 2025-12-10 | Brian J Wendling | CAO & PFO | M | +1,054 | +$28.67K |
| 2025-12-10 | Richard R Green | Director | M | +84 | +$2.28K |
| 2025-11-18 | Jedd Gould | Director | Buy | +15,000 | +$511.68K |
| 2025-09-30 | John C Malone | Director | Buy | +763 | +$26.70K |
| 2025-09-25 | John C Malone | Director | Buy | +2,319 | +$81.17K |
| 2025-09-22 | John C Malone | Director | Buy | +10,270 | +$359.16K |
| 2025-09-17 | John C Malone | Director | Buy | +49,898 | +$1.75M |
| 2025-09-10 | John C Malone | Director | Buy | +14,169 | +$509.92K |
| 2025-09-04 | John C Malone | Director | Buy | +3,700 | +$133.20K |
| 2025-08-25 | Larry E Romrell | Director | A | +10,859 deriv. | — |
| 2025-08-25 | Richard R Green | Director | A | +10,406 deriv. | — |
| 2025-08-25 | Brian Deevy | Director | A | +11,085 deriv. | — |
| 2025-08-25 | Ronald A Duncan | President and CEO | A | +814,441 deriv. | — |
| 2025-08-25 | John C Malone | Director | Buy | +16,153 | +$581.25K |
| 2025-08-20 | John C Malone | Director | Buy | +182,346 | +$6.54M |
| 2025-08-19 | John C Malone | Director | J | — | — |
| 2025-07-23 | Ronald A Duncan | President and CEO | A | +7,035 deriv. | — |
| 2025-07-16 | John C Malone | Director | J | +1,746,899 | — |
| 2025-07-16 | Renee L Wilm | Chief Legal/Admin Officer | J | +1,813 | — |
| 2025-07-16 | Brian J Wendling | CAO & PFO | J | +2,746 | — |
| 2025-07-16 | Richard R Green | Director | J | +1,619 | — |
| 2025-07-16 | Ronald A Duncan | President and CEO | J | +102,582 | — |
| 2025-07-14 | Liberty Broadband Corp | 10%+ Owner | J | −1,000 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| John C Malone | Director | 418,333 | $11.46M |
| Ronald A Duncan | President and CEO | 172,680 | $4.73M |
| Jedd Gould | Director | 5,761 | $157.79K |
| Larry E Romrell | Director | 5,239 | $143.50K |
| Brian J Wendling | CAO & PFO | 3,800 | $104.08K |
| Richard R Green | Director | 2,760 | $75.60K |
| Renee L Wilm | Chief Legal/Admin Officer | 2,509 | $68.72K |
| Brian Deevy | Director | 697 | $19.09K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the GLIBK quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.