MDIA
MEDIACO HOLDING INC.Marquee-fund ownership over time
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Millennium Management | Q4 2024(8Q snapshot) | 6Q | $1.15 | $0.95 | -17% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Citadel Advisors 2× in & out | Q4 2025 | Q1 2026 | → $0.59 | -36% |
| Renaissance Technologies | Q4 2024 | Q1 2025 | → $1.18 | +5% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at Mediaco Holding Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Sep 12, 2025 — the most recent Form 4 on file — not from today.
- Form 40000895345-25-000301Sep 12, 2025
- Form 40000950142-25-002396Sep 8, 2025
- Form 40000950142-25-001254May 5, 2025
- Form 40000929638-24-002545Jul 19, 2024
- Form 40000950170-24-064526May 24, 2024
- Form 40000950170-24-063092May 21, 2024
- Form 4/Aamend0000929638-24-001657Apr 29, 2024
- Form 4/Aamend0000929638-24-001656Apr 29, 2024
- Form 40000929638-24-001655Apr 29, 2024
- Form 40000929638-24-001531Apr 18, 2024
- Form 40000929638-23-002289Aug 15, 2023
- Form 40000929638-23-002277Aug 14, 2023
- Form 40000929638-23-002234Aug 11, 2023
- Form 40000929638-23-002233Aug 11, 2023
- Form 40000929638-23-001944Jul 5, 2023
Fundamentals
XBRL · MEDIACO HOLDING INC.Annual figures sourced directly from MEDIACO HOLDING INC.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for Mediaco Holding Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventMay 18, 2026
- 10-QQuarterly reportMay 15, 2026
- 10-K/AAnnual report (amended)Apr 30, 2026
- 8-KMaterial eventMar 31, 2026
- 10-KAnnual reportMar 31, 2026
- 8-KMaterial eventDec 22, 2025
- 8-KMaterial eventNov 25, 2025
- 8-KMaterial eventNov 20, 2025
- 10-QQuarterly reportNov 19, 2025
- 8-KMaterial eventNov 18, 2025
- 8-KMaterial eventSep 12, 2025
- 8-KMaterial eventAug 14, 2025
- 8-KMaterial eventAug 12, 2025
- 10-QQuarterly reportAug 11, 2025
- DEF 14AProxy statementJun 27, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q4 2025 | Q1 2026 | $0.93 | $0.59 | -36% |
| Citadel Advisors | Q2 2025 | Q3 2025 | $0.91 | $1.35 | +48% |
| Millennium Management | Q4 2024 | open | $1.15 | $0.95 | -17% |
| Renaissance Technologies | Q4 2024 | Q1 2025 | $1.12 | $1.18 | +5% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.