Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GLIBA held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD PORTFOLIO MANAGEMENT LLC | 240K | $8.8M | — | 0.721% | 0.00% |
| 2 | BlackRock, Inc. | 224K | $8.3M | +4.4% | 0.674% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 182K | $6.7M | — | 0.548% | 0.00% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 154K | $5.7M | +29.7% | 0.464% | 0.00% |
| 5 | Quantinno Capital Management LP | 129K | $4.7M | +78.9% | 0.387% | 0.01% |
| 6 | Ruane, Cunniff & Goldfarb L.P. | 128K | $4.7M | -2.8% | 0.384% | 0.08% |
| 7 | ADVISOR GROUP HOLDINGS, INC. | 118K | $4.3M | +2.2% | 0.354% | 0.01% |
| 8 | Luxor Capital Group, LP | 117K | $4.3M | 0.0% | 0.353% | 0.82% |
| 9 | AMERICAN CENTURY COMPANIES INC | 109K | $4.0M | +116.7% | 0.328% | 0.00% |
| 10 | Empyrean Capital Partners, LP | 100K | $3.7M | 0.0% | 0.301% | 0.12% |
| 11 | D. E. Shaw & Co., Inc. | 92K | $3.4M | +0.1% | 0.275% | 0.00% |
| 12 | SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 81K | $3.0M | 0.0% | 0.243% | 0.15% |
| 13 | BISLETT MANAGEMENT, LLC | 75K | $2.8M | 0.0% | 0.226% | 2.13% |
| 14 | STATE OF WISCONSIN INVESTMENT BOARD | 74K | $2.7M | +4.3% | 0.222% | 0.01% |
| 15 | Gotham Asset Management, LLC | 69K | $2.6M | -40.5% | 0.209% | 0.01% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 69K | $2.5M | +95.3% | 0.208% | 0.00% |
| 17 | STATE STREET CORP | 68K | $2.5M | -22.2% | 0.203% | 0.00% |
| 18 | MORGAN STANLEY | 64K | $2.4M | -0.3% | 0.194% | 0.00% |
| 19 | Diametric Capital, LP | 37K | $1.4M | -1.7% | 0.112% | 0.36% |
| 20 | MARSHALL WACE, LLP | 36K | $1.3M | +199.8% | 0.108% | 0.00% |
| 21 | Alberta Investment Management Corp | 24K | $880K | -20.5% | 0.072% | 0.01% |
| 22 | GABELLI FUNDS LLC | 22K | $811K | +6.1% | 0.066% | 0.01% |
| 23 | Long Focus Capital Management, LLC | 22K | $796K | -71.2% | 0.065% | 0.02% |
| 24 | MILLENNIUM MANAGEMENT LLC | 21K | $789K | +11.9% | 0.064% | 0.00% |
| 25 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 21K | $785K | -19.7% | 0.064% | 0.05% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in GLIBA — a direct measure of their conviction.
Filings activity in GLIBA during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new GLIBA position in Q1 2026
Institutions that fully closed their GLIBA position in Q1 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 133 | +7.3% | 12.83% | +0.57 pp | $96M | +4.6% |
| Q4 2025 | 124 | +0.0% | 12.26% | +1.03 pp | $91M | +9.2% |
| Q3 2025 | 124 | +6100% | 11.23% | +11.17 pp | $84M | +18439% |
| Q2 2021 | 2 | +100% | 0.06% | +0.06 pp | $0M | — |
| Q1 2021 | 1 | 67% | 0.00% | 199.99 pp | $0M | 100% |
| Q4 2020 | 3 | 99% | 199.99% | +0.00 pp | $11.59B | 42% |
| Q3 2020 | 323 | +3.2% | 199.99% | +0.00 pp | $20.07B | 2.5% |
| Q2 2020 | 313 | — | 199.99% | — | $20.57B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying GLIBA stock.
Based on Q1 2026 13F filings, institutional ownership of GCI Liberty, Inc. stands at 12.8%, held across 133 reporting institutions.
VANGUARD PORTFOLIO MANAGEMENT LLC is the largest reported institutional holder of GLIBA, with approximately 239,858 shares worth $0.01B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of GLIBA, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for GLIBA is 58 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
26 institutions opened new positions in GLIBA during Q1 2026, while 17 fully exited. 37 added to existing positions and 56 trimmed.
GLIBA institutional ownership rose by 0.57 percentage points quarter-over-quarter, with a net change of +9 holders.
The top 10 institutions account for 57.8% of all reported 13F value in GLIBA, and the top 25 account for 87.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
GCI Liberty, Inc. (GLIBA) Institutional Ownership