Mediaco Holding Inc. (MDIA) Institutional Ownership

Ownership Summary

Mediaco Holding Inc. (NASDAQ:MDIA) currently has 15 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• The collective stake of institutional investors in Mediaco Holding moved to 94.7% in December 2025, a shift down from the 95.6% reported for September 2025.
• Institutional share ownership changed by -0.89% QoQ, while the number of institutional owners saw a decrease of 21.05% YoY.
• During the quarter, 2 institutions bought more Mediaco Holding shares, 4 sold shares, and 9 of the 15 total investors held their position steady.
• The aggregate institutional position in Mediaco Holding now stands at 72.44Mn shares as of December 2025, after investors decreased their holdings (down by 652.16K shares quarter on quarter which is up 34.29Mn shares year over year).
• The top institutional stake in Mediaco Holding as of December 31, 2025 belongs to Standard General L.P., which owns 35.43Mn shares, or 46.30% of the company.
• Among the most significant buyers of Mediaco Holding during December 2025 were Tower Research Capital LLC (TRC) (340), BANK OF AMERICA CORP /DE/ (3).
• Leading sellers of Mediaco Holding stock in December 2025 included JPMORGAN CHASE & CO (605.36K), UBS Group AG (37.06K), MILLENNIUM MANAGEMENT LLC (8.18K), GEODE CAPITAL MANAGEMENT, LLC (1.90K).
• The top 10 institutional holders of Mediaco Holding for the quarter ending December 2025 included Standard General L.P. (35.43Mn), BlackRock, Inc. (35.28Mn), JPMORGAN CHASE & CO (1.33Mn), GEODE CAPITAL MANAGEMENT, LLC (114.76K), MILLENNIUM MANAGEMENT LLC (105.85K), VANGUARD GROUP INC (83.56K), UBS Group AG (53.34K), STATE STREET CORP (16.66K), NORTHERN TRUST CORP (13.85K), Tower Research Capital LLC (TRC) (4.66K).