MDIA's three largest insider shareholders as of September 09, 2026 are General L.P. Standard (Director, 35.43Mn shares), Portfolio Management Llc Blackrock (TenPercentOwner, 35.26Mn shares), Group Gp, Llc Hps (TenPercentOwner, 7.05Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | General L.P. Standard | Director, TenPercentOwner | 0 | 35,426,400 | 35,426,400 | 44.8% | 12 Sep, 2025 |
| 2 | Portfolio Management Llc Blackrock | TenPercentOwner | 0 | 35,257,476 | 35,257,476 | 44.6% | 08 Sep, 2025 |
| 3 | Group Gp, Llc Hps | TenPercentOwner | 0 | 7,051,538 | 7,051,538 | 8.9% | 05 May, 2025 |
| 4 | Corp Emmis | Director, TenPercentOwner | 721,897 | 0 | 721,897 | 0.9% | 24 May, 2024 |
| 5 | Bradford A Tobin | President, Coo | 198,657 | 0 | 198,657 | 0.3% | 10 Apr, 2023 |
| 6 | Ann C Beemish | Cfo | 137,536 | 0 | 137,536 | 0.2% | 10 Apr, 2023 |
| 7 | Rahsan Lindsay | Ceo | 124,020 | 0 | 124,020 | 0.2% | 05 Jul, 2023 |
| 8 | Andrew P. Glaze | Director | 73,023 | 0 | 73,023 | 0.1% | 15 Aug, 2023 |
| 9 | Deborah A Mcdermott | Director | 40,453 | 0 | 40,453 | 0.1% | 10 Aug, 2023 |
| 10 | Mary Beth Riggio | Director | 34,342 | 0 | 34,342 | 0.0% | 10 Aug, 2023 |
| 11 | Robert L. Greene | Director | 20,849 | 0 | 20,849 | 0.0% | 14 Aug, 2023 |
| 12 | Ryan A Hornaday | Evp, Cfo Treasurer | 3,163 | 0 | 3,163 | 0.0% | 16 Aug, 2021 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 12 Sep, 2025 | General L.P. Standard | Director, TenPercentOwner | Disposed J | 2,105,596 | $0.00 | $0 | 35,426,400 | Indirect |
| 05 Sep, 2025 | Portfolio Management Llc Blackrock | TenPercentOwner | Acquired X | 28,206,152 | — | — | 35,257,690 | Indirect |
| 05 Sep, 2025 | Portfolio Management Llc Blackrock | TenPercentOwner | Disposed S | 214 | $1.32 | $282 | 35,257,476 | Indirect |
| 05 Sep, 2025 | Portfolio Management Llc Blackrock | TenPercentOwner | Disposed X | 28,206,152 | $0.00 | $0 | 0 | Indirect |
| 01 May, 2025 | Group Gp, Llc Hps | TenPercentOwner | Acquired M | 7,051,538 | — | — | 7,051,538 | Indirect |
| 01 May, 2025 | Group Gp, Llc Hps | TenPercentOwner | Disposed M | 7,051,538 | — | — | 0 | Indirect |
| 22 May, 2024 | Corp Emmis | Director, TenPercentOwner | Disposed S | 10,781 | $1.25 | $13.48K | 306,473 | Direct |
| 17 May, 2024 | Corp Emmis | Director, TenPercentOwner | Disposed S | 4,547 | $1.46 | $6.64K | 357,552 | Direct |
| 21 May, 2024 | Corp Emmis | Director, TenPercentOwner | Disposed S | 40,298 | $1.25 | $50.37K | 317,254 | Direct |
| 16 Apr, 2024 | General L.P. Standard | Director, TenPercentOwner | Disposed D | 286,031 | — | — | 0 | Indirect |
| 16 Apr, 2024 | General L.P. Standard | Director, TenPercentOwner | Acquired A | 20,733,869 | $1.43 | $29.60Mn | 37,531,996 | Indirect |
| 08 Aug, 2023 | Andrew P. Glaze | Director | Acquired A | 12,856 | — | — | 73,023 | Direct |
| 08 Aug, 2023 | Robert L. Greene | Director | Acquired A | 12,856 | — | — | 12,856 | Direct |
| 08 Aug, 2023 | Robert L. Greene | Director | Acquired A | 7,993 | — | — | 20,849 | Direct |
| 08 Aug, 2023 | Deborah A Mcdermott | Director | Acquired A | 25,713 | — | — | 40,453 | Direct |
| 08 Aug, 2023 | Mary Beth Riggio | Director | Acquired A | 12,856 | — | — | 34,342 | Direct |
| 08 Aug, 2023 | Mary Beth Riggio | Director | Acquired A | 12,856 | — | — | 34,342 | Direct |
| 08 Aug, 2023 | Mary Beth Riggio | Director | Acquired A | 12,856 | — | — | 34,342 | Direct |
| 30 Jun, 2023 | Rahsan Lindsay | Ceo | Disposed F | 11,541 | $1.12 | $12.93K | 124,020 | Direct |
| 14 Jun, 2023 | Corp Emmis | Director, TenPercentOwner | Disposed S | 12,913 | $1.39 | $17.95K | 362,099 | Direct |