Mediaco Holding's three largest insider shareholders as of September 29, 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 |
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 |
| 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 |
| 12 Jun, 2023 | Corp Emmis | Director, TenPercentOwner | Disposed S | 1,026 | $1.27 | $1.30K | 408,270 | Direct |
| 13 Jun, 2023 | Corp Emmis | Director, TenPercentOwner | Disposed S | 33,258 | $1.50 | $49.89K | 375,012 | Direct |