SEC Form 4 · Updated Daily
MDLN
Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| TC Group, LLC | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| Carlyle Group L.P. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| Carlyle Holdings I GP Inc. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| Carlyle Holdings I GP Sub L.L.C. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| Carlyle Holdings I L.P. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| TC Group Sub L.P. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| TC Group VII S1, L.P. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| TC Group VII S1, L.L.C. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| CG Subsidiary Holdings L.L.C. | 10%+ Owner | 125,454,241 | 2026-03-10 | J |
| SCHWARZMAN STEPHEN A | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| Blackstone Inc. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| Blackstone Group Management L.L.C. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| Blackstone Holdings I/II GP L.L.C. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| Blackstone Holdings II L.P. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| BMA VIII L.L.C. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
| BCP 8 Holdings Mozart Manager L.L.C. | 10%+ Owner | 1,990,467 | 2026-05-28 | J |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-05-28 | SCHWARZMAN STEPHEN A | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | SCHWARZMAN STEPHEN A | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | SCHWARZMAN STEPHEN A | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | SCHWARZMAN STEPHEN A | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | SCHWARZMAN STEPHEN A | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | Blackstone Group Management L.L.C. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | Blackstone Group Management L.L.C. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | Blackstone Group Management L.L.C. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | Blackstone Group Management L.L.C. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | Blackstone Group Management L.L.C. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | Blackstone Inc. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | Blackstone Inc. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | Blackstone Inc. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | Blackstone Inc. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | Blackstone Inc. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | Blackstone Holdings I/II GP L.L.C. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | Blackstone Holdings I/II GP L.L.C. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | Blackstone Holdings I/II GP L.L.C. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | Blackstone Holdings I/II GP L.L.C. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | Blackstone Holdings I/II GP L.L.C. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | Blackstone Holdings II L.P. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | Blackstone Holdings II L.P. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | Blackstone Holdings II L.P. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | Blackstone Holdings II L.P. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | Blackstone Holdings II L.P. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | BMA VIII L.L.C. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | BMA VIII L.L.C. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | BMA VIII L.L.C. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | BMA VIII L.L.C. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | BMA VIII L.L.C. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-28 | BCP 8 Holdings Mozart Manager L.L.C. | J | 438,214 | — | 1,990,467 |
| 2026-05-28 | BCP 8 Holdings Mozart Manager L.L.C. | Open-market sale | 1,489,924 | $36.54 | 1,539 |
| 2026-05-28 | BCP 8 Holdings Mozart Manager L.L.C. | Open-market sale | 2,256,800 | $36.54 | 10,250,904 |
| 2026-05-28 | BCP 8 Holdings Mozart Manager L.L.C. | Open-market sale | 9,858,774 | $36.54 | 10,185 |
| 2026-05-28 | BCP 8 Holdings Mozart Manager L.L.C. | Open-market sale | 19,712,326 | $36.54 | 89,537,913 |
| 2026-05-21 | SCHWARZMAN STEPHEN A | Conversion (derivative) | 1,489,924 | $0.00 | 6,766,039 |
| 2026-05-21 | SCHWARZMAN STEPHEN A | Conversion (derivative) | 9,858,774 | $0.00 | 44,770,628 |
| 2026-05-21 | SCHWARZMAN STEPHEN A | J | 1,489,924 | — | 6,766,039 |
| 2026-05-21 | SCHWARZMAN STEPHEN A | J | 9,858,774 | — | 44,770,628 |
| 2026-05-21 | SCHWARZMAN STEPHEN A | Conversion | 1,489,924 | — | 1,491,463 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.