Security key
58450D104
Mediaco Holding Inc. - Class A Common Stock, $0.01 par value per share (MDIA)
CUSIP: 58450D104
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / Class A Common Stock, $0.01 par value per share
- Total 13F shares
- 73,120,983
- Total 13F value
- $92,863,791
- Share change
- +35,220,108
- SEC-reported price per share
- $1.27
- Number of holders
- 15
- Value change
- +$44,729,703
- Number of buys
- 8
- Number of sells
- 5
- Shares outstanding
- 81,875,696
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
15
Top holders
10
MDIA full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Mediaco Holding Inc. SEC filings
Mediaco Holding Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 58450D104
Recent filing periods:
Ownership snapshot
Top reported holders of MDIA - Mediaco Holding Inc. - Class A Common Stock, $0.01 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Standard General L.P.
Disclosed value leader
Standard General L.P.
Comparable rows
15/15
Latest evidence
12 Sep 2025
13D/G
3/4/5
13F
Lead comparable stake: 50%
13D/G row: Standard General L.P.
Showing 1-6 of 15 holder rows.
Quick read
Standard General L.P. leads the comparable SEC ownership view at 50%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Standard General L.P.'s linked filing trail.
Comparable ownership
Top 5
Standard General L.P.
50%
BlackRock Portfolio Management LLC
46%
Scott Kapnick
46%
HPS Group GP, LLC
8.6%
HPS Investment Partners, LLC
8.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Standard General L.P. |
13D/G
3/4/5
13F
Director, 10%+ Owner · Individual
|
50%
|
$54,725,060
40,839,597 shares
|
$0 | 12 Sep 2025 |
| BlackRock Portfolio Management LLC |
13D/G
3/4/5
10%+ Owner
|
46%
|
$47,245,018
35,257,476 shares
|
-$287 | 05 Sep 2025 |
| Scott Kapnick |
13D/G
|
46%
|
$39,488,613
35,257,690 shares
|
$0 | 01 May 2025 |
| HPS Group GP, LLC |
3/4/5
10%+ Owner
|
8.6%
|
$7,897,722
7,051,538 shares
|
— | 01 May 2025 |
| HPS Investment Partners, LLC |
13F
Company
|
8.6%
|
$7,686,176
7,051,538 shares
|
— | 30 Jun 2025 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
0.18%
|
$157,239
144,256 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
15
Shares
73,120,983
Rows available
15
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q4 2025 Across Filers
Q4 2025 holders
14
Q3 2025 holders
15
Holder diff
1
| Investor | Q4 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q4 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend