Among active 13F managers last quarter, 1 opened and 1 added, while 1 reduced; the largest holder to move was Millennium Management LLC (−16%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
17 tracked 13F filers disclose a position in MDIA as of the latest SEC 13F filings, a combined $70.3M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Standard General L.P. | 35.4M | $34.9M | —Held | Q2 2026 | |
| 2 | BlackRock, Inc. | 35.3M | $34.8M | —Held | Q2 2026 | |
| 3 | JPMorgan Chase & Co | 383K | $255K | ▼−71% Reduced · −949K sh | Q1 2026 | |
| 4 | Geode Capital Management, LLC | 96K | $95K | ▼−16% Reduced · −19K sh | Q2 2026 | |
| 5 | Millennium Management LLC | 89K | $59K | ▼−16% Reduced · −17K sh | Q1 2026 | |
| 6 | Vanguard Capital Management LLC | 71K | $70K | ▲+116% Added · +38K sh | Q2 2026 | |
| 7 | UBS Group AG | 55K | $36K | ▲+3.0% Added · +2K sh | Q1 2026 | |
| 8 | Vanguard Fiduciary Trust Co | 49K | $49K | —Held | Q2 2026 | |
| 9 | Citadel Advisors LLC | 28K | $28K | ▲New +28K sh | Q2 2026 | |
| 10 | State Street Corp | 17K | $16K | —Held | Q2 2026 | |
| 11 | Northern Trust Corp | 14K | $9K | —Held | Q1 2026 | |
| 12 | Tower Research Capital LLC (TRC) | 5K | $3K | ▲+11% Added · +520 sh | Q1 2026 | |
| 13 | Vanguard Global Advisers, LLC | 2K | $2K | —Held | Q2 2026 | |
| 14 | Morgan Stanley | 203 | $134 | ▲68× Added · +200 sh | Q1 2026 | |
| 15 | Allworth Financial LP | 32 | $22 | —Held | Q1 2026 | |
| 16 | Harbour Investments, Inc. | 19 | $13 | —Held | Q1 2026 | |
| 17 | Citigroup Inc | 1 | $1 | ▲New +1 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 1 fund opened a new position in MDIA and 1 added to an existing one, while 1 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Nvidia CorpNVDA | 4 funds | $4.3B |
| Apple IncAAPL | 4 funds | $3.5B |
| Amazon.com IncAMZN | 4 funds | $3.2B |
| Microsoft CorpMSFT | 4 funds | $2.6B |
| Warner Bros Discovery IncWBD | 4 funds | $2.4B |
| Electronic Arts IncEA | 4 funds | $2.1B |
| Broadcom IncAVGO | 4 funds | $1.8B |
| Norfolk Southern CorpNSC | 4 funds | $1.8B |
| Meta Platforms Inc-Class AMETA | 4 funds | $1.8B |
| Ste STR SPDR PT S&P 500 ETFSPYM | 4 funds | $1.7B |
| BlackRock IncBLK | 4 funds | $1.7B |
| Alphabet Inc-CL AGOOGL | 4 funds | $1.6B |
Ranked by how many of MDIA's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MDIA.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 5, 2025 | BlackRock Portfolio Management LLC | 10% Owner | Sell (S) | 214 | $282 |
| May 22, 2024 | Emmis Corp | Director, 10% Owner | Sell (S) | 11K | $13K |
| May 21, 2024 | Emmis Corp | Director, 10% Owner | Sell (S) | 40K | $50K |
| May 17, 2024 | Emmis Corp | Director, 10% Owner | Sell (S) | 5K | $7K |
| Jun 14, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 13K | $18K |
| Jun 13, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 33K | $50K |
| Jun 12, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 1K | $1K |
| Jun 7, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 69 | $88 |
| Jun 6, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 400 | $508 |
| Jun 5, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 2K | $2K |
| Jun 2, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 3K | $4K |
| May 23, 2023 | Emmis Corp | Director, 10% Owner | Sell (S) | 5 | $6 |
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 4 | 3 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for MDIA
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MDIA/capital-change-brief"
Use Arkolith's capital_change_brief for MDIA. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MDIA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.