Comparable stake leader
Standard General L.P.
SEC ownership of Mediaco Holding Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001784254.
Disclosed value leader
Standard General L.P.
Comparable rows
21/33
Latest evidence
30 Jun 2026
- Public ticker
- MDIA on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Standard General L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
21 of 33
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Standard General L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001784254
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Mediaco Holding Inc. (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
21/33
Latest evidence
30 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 50%
12 rows are not safely comparable across share classes.
13D/G row: Standard General L.P.
Showing 1-8 of 33 holder rows.
Quick read
Standard General L.P. leads the comparable SEC ownership view at 50%.
21 of 33 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%
BlackRock, Inc.
43%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 33 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 |
| BlackRock, Inc. |
13F
Company
|
43%
|
$34,790,692
35,284,678 shares
|
— | 30 Jun 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.12%
|
$95,164
96,397 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
0.09%
|
$69,521
70,508 shares
|
— | 30 Jun 2026 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
0.08%
|
$61,277
62,147 shares
|
— | 30 Jun 2026 |
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.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$282.
Buys
$0
Insiders: 0
Sells
$282
Insiders: 1
Net
-$282
Shares: -214
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 214
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 214 | $0 | $282 | -$282 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 26 reporting-owner rows connected to Mediaco Holding Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
26
Largest Forms 3/4/5 holder
Standard General L.P.
Net 12M change
-$282
Latest report
12 Sep 2025
Recent insider transactions for Mediaco Holding Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Standard General L.P. | MDIA | Class A Common Stock | Other | -5.61% | -2,105,596 | 35,426,400 | 12 Sep 2025 | See Footnote | ||
| BlackRock Portfolio Management LLC | MDIA | Class A Common Stock | Sale | $282 | $1.32 | -214 | 35,257,476 | 05 Sep 2025 | See Footnote | |
| BlackRock Portfolio Management LLC | MDIA | Class A Common Stock | Exercise of in-the-money or at-the-money derivative security | 400% | 28,206,152 | 35,257,690 | 05 Sep 2025 | See Footnote | ||
| BlackRock Portfolio Management LLC | MDIA | Warrant (Right to buy) | Exercise of in-the-money or at-the-money derivative security | -100% | -28,206,152 | 0 | 05 Sep 2025 | See Footnote |
* marks a reported price that did not pass the local price check.