Mediaco Holding Inc.
MDIA- Exchange
- Nasdaq
- Industry
- Radio Broadcasting Stations
- SEC CIK
- 0001784254
No open-market purchases or sales by Mediaco Holding Inc. insiders were filed in the last 90 days; 18 institutions reported holding it in 13F filings for Q2 2026, worth $70.1M in total; no superinvestor holds it.
Holders of 5% or more of MDIA
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Mediaco Holding Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Standard General L.P. | 13D/A | 49.88%40.8M shares | – | Sep 12, 20251 filing | Sep 12, 2025 | SEC |
| Kapnick Scott | 13D/A | 46.10%35.3M shares | +0.10 ppfrom 46.00% | Mar 12, 20252 filings | May 5, 2025 | SEC |
| BlackRock Portfolio Management LLC | 13D/A | 46.10%35.3M shares | 0.00 ppfrom 46.10% | Jul 3, 20252 filings | Sep 8, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
5 Schedule 13D and 13G filings on Mediaco Holding Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Sep 12, 20254:51 PM ET | Standard General L.P.and 1 other | 13D/A | 49.88%40.8M shares | – | Sep 12, 2025 | SEC |
| Sep 8, 20254:05 PM ET | BlackRock Portfolio Management LLC | 13D/A | 46.10%35.3M shares | 0.00 ppfrom 46.10% | Sep 5, 2025 | SEC |
| Jul 3, 20254:42 PM ET | BlackRock Portfolio Management LLC | 13D | 46.10%35.3M shares | New | Jul 1, 2025 | SEC |
| May 5, 20256:09 PM ET | Kapnick Scottand 3 others | 13D/A | 46.10%35.3M shares | +0.10 ppfrom 46.00% | May 1, 2025 | SEC |
| Mar 12, 20256:51 PM ET | Kapnick Scottand 3 others | 13D/A | 46.00%35.3M shares | – | Mar 10, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Mediaco Holding Inc. shares.
No Form 144 notices for Mediaco Holding Inc. are on file.