This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/GLIBA/capital-change-brief"
Use Arkolith's capital_change_brief for GLIBA. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD PORTFOLIO MANAGEMENT LLC | $8.8M | 240K | ▲New +240K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $8.3M | 224K | ▲+4.4% Added · +9K sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $6.7M | 182K | ▲New +182K sh | Q1 2026 | |
| 4 | DIMENSIONAL FUND ADVISORS LP | $5.7M | 154K | ▲+30% Added · +35K sh | Q1 2026 | |
| 5 | Quantinno Capital Management LP | $4.7M | 129K | ▲+79% Added · +57K sh | Q1 2026 | |
| 6 | Ruane, Cunniff & Goldfarb L.P. | $4.7M | 128K | ▼−2.8% Reduced · −4K sh | Q1 2026 | |
| 7 | OSAIC HOLDINGS, INC. | $4.3M | 118K | ▲+2.2% Added · +3K sh | Q1 2026 | |
| 8 | Luxor Capital Group, LP | $4.3M | 117K | —Held | Q1 2026 | |
| 9 | AMERICAN CENTURY COMPANIES INC | $4.0M | 109K | ▲+117% Added · +59K sh | Q1 2026 | |
| 10 | Empyrean Capital Partners, LP | $3.7M | 100K | —Held | Q1 2026 | |
| 11 | D. E. Shaw & Co., Inc. | $3.4M | 92K | ▲+0.1% Added · +100 sh | Q1 2026 | |
| 12 | SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | $3.0M | 81K | —Held | Q1 2026 | |
| 13 | Gotham Asset Management, LLC | $2.6M | 69K | ▼−40% Reduced · −47K sh | Q1 2026 | |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | $2.5M | 69K | ▲+95% Added · +34K sh | Q1 2026 | |
| 15 | STATE STREET CORP | $2.5M | 68K | ▼−22% Reduced · −19K sh | Q1 2026 | |
| 16 | MORGAN STANLEY | $2.4M | 64K | ▼−0.3% Reduced · −198 sh | Q1 2026 | |
| 17 | Ancora Advisors LLC | $1.5M | 41K | ▲+0.4% Added · +181 sh | Q1 2026 | |
| 18 | Diametric Capital, LP | $1.4M | 37K | ▼−1.7% Reduced · −646 sh | Q1 2026 | |
| 19 | MARSHALL WACE, LLP | $1.3M | 36K | ▲+200% Added · +24K sh | Q1 2026 | |
| 20 | Alberta Investment Management Corp | $880K | 24K | ▼−20% Reduced · −6K sh | Q1 2026 | |
| 21 | GABELLI FUNDS LLC | $811K | 22K | ▲+6.1% Added · +1K sh | Q1 2026 | |
| 22 | Long Focus Capital Management, LLC | $796K | 22K | ▼−71% Reduced · −53K sh | Q1 2026 | |
| 23 | MILLENNIUM MANAGEMENT LLC | $789K | 21K | ▲+12% Added · +2K sh | Q1 2026 | |
| 24 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $785K | 21K | ▼−20% Reduced · −5K sh | Q1 2026 | |
| 25 | BNP PARIBAS FINANCIAL MARKETS | $686K | 19K | ▲+0.1% Added · +13 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 24.6M | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 3.7M | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 401K | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 24.6M | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 3.7M | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 401K | — |
| Jul 14, 2025 | Liberty Broadband Corp | 10% Owner | Other (J) | 1K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL AGOOGL | 38 funds | $10.9B |
| CAPITAL ONE FINANCIAL CORPCOF | 38 funds | $1.2B |
| ZOETIS INCZTS | 38 funds | $827.5M |
| MICROSOFT CORPMSFT | 37 funds | $15.2B |
| META PLATFORMS INC-CLASS AMETA | 37 funds | $7.1B |
| UNITEDHEALTH GROUP INCUNH | 37 funds | $1.7B |
| WARNER BROS DISCOVERY INCWBD | 37 funds | $1.2B |
| ELEVANCE HEALTH INCELV | 37 funds | $1.2B |
| AMERICAN EXPRESS COAXP | 37 funds | $1.1B |
| COMCAST CORP-CLASS ACMCSA | 37 funds | $973.5M |
| APPLE INCAAPL | 36 funds | $19.8B |
| AMAZON.COM INCAMZN | 36 funds | $12.3B |
Ranked by how many of GLIBA's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GLIBA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.