MACOM Technology Solutions Holdings, Inc. (MTSI) ownership: Top institutional holder: FMR LLC ($2.36B). Insider activity: Net Seller (0 buys, 20 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| FMR LLC | 10610440.00 | $2.36B | 2026-03-31 |
| BlackRock, Inc. | 8566283.00 | $1.90B | 2026-03-31 |
| VANGUARD GROUP INC | 7225100.00 | $1.24B | 2025-12-31 |
| T. Rowe Price Investment Management, Inc. | 4486082.00 | $996.23M | 2026-03-31 |
| Invesco Ltd. | 3673815.00 | $815.84M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3587081.00 | $796.58M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2992851.00 | $664.62M | 2026-03-31 |
| STATE STREET CORP | 2152751.00 | $478.06M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Sell | null | 2026-05-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.