Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-08-03)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | MTSI · NASDAQ | 76,370,931 | 73,261,537 | 95.9% | 659 | 55405Y100 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (31 of 31 · 55405YAD2)
change vs 2026-03-31| # | Filer | Shares / principal | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | VOYA INVESTMENT MANAGEMENT LLC | 85,770,000 | — | $197.9M | -31,325,000 (-26.8%) |
| 2 | FRANKLIN RESOURCES INC | 60,166,000 | — | $138.8M | +166,000 (+0.3%) |
| 3 | Linden Advisors LP | 38,296,000 | — | $88.2M | NEW |
| 4 | BlackRock, Inc. | 33,290,000 | — | $76.6M | +2,425,000 (+7.9%) |
| 5 | Calamos Advisors LLC | 21,094,000 | — | $48.7M | -13,690,000 (-39.4%) |
| 6 | TENOR CAPITAL MANAGEMENT Co., L.P. | 13,498,000 | — | $31.2M | NEW |
| 7 | ARISTEIA CAPITAL, L.L.C. | 10,000,000 | — | $23.1M | NEW |
| 8 | FMR LLC | 6,063,000 | — | $14.0M | +125,000 (+2.1%) |
| 9 | Point72 Asset Management, L.P. | 6,000,000 | — | $13.9M | -5,000,000 (-45.5%) |
| 10 | AMERIPRISE FINANCIAL INC | 5,500,000 | — | $12.7M | -2,500,000 (-31.3%) |
| 11 | Nicholas Investment Partners, LP | 5,400,000 | — | $12.4M | — |
| 12 | SSI INVESTMENT MANAGEMENT LLC | 4,701,000 | — | $10.8M | -1,956,000 (-29.4%) |
| 13 | DeepCurrents Investment Group LLC | 3,500,000 | — | $8.1M | NEW |
| 14 | ADVENT CAPITAL MANAGEMENT /DE/ | 3,133,000 | — | $7.2M | NEW |
| 15 | NOMURA ASSET MANAGEMENT CO LTD | 3,000,000 | — | $6.9M | -2,000,000 (-40.0%) |
| 16 | LORD, ABBETT & CO. LLC | 2,718,000 | — | $6.3M | -1,543,000 (-36.2%) |
| 17 | LBP AM SA | 2,500,000 | — | $5.8M | NEW |
| 18 | BNP PARIBAS FINANCIAL MARKETS | 1,632,000 | — | $3.8M | -1,331,000 (-44.9%) |
| 19 | AGF MANAGEMENT LTD | 1,300,000 | — | $3.0M | — |
| 20 | Invesco Ltd. | 1,000,000 | — | $2.3M | NEW |
| 21 | Bank of New York Mellon Corp | 550,000 | — | $1.3M | -500,000 (-47.6%) |
| 22 | Central Pacific Bank - Trust Division | 253,000 | — | $582K | NEW |
| 23 | Virtus Fixed Income Advisers, LLC | 211,000 | — | $486K | NEW |
| 24 | Ares Systematic Credit Ltd | 100,000 | — | $231K | -1,900,000 (-95.0%) |
| 25 | Calamos Wealth Management LLC | 92,000 | — | $212K | -239,000 (-72.2%) |
| 26 | JPMORGAN CHASE & CO | 77,000 | — | $175K | -985,000 (-92.7%) |
| 27 | VIRTUS ADVISERS, LLC | 48,000 | — | $110K | — |
| 28 | TRUIST FINANCIAL CORP | 35,000 | — | $81K | -1,846,000 (-98.1%) |
| 29 | Squarepoint Ops LLC | 17,650 | — | $41.0M | NEW |
| 30 | SG Americas Securities, LLC | 4,500 | — | $1.0M | — |
| 31 | Alken Asset Management Ltd | 2,040 | — | $4.7M | -360 (-15.0%) |
Exited since 2026-03-31 (2 filers; largest 2 shown)
| LAZARD ASSET MANAGEMENT LLC | −837,000 |
| UBS Group AG | −99,000 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 2,850,185 | 3.7% |
| Susan M. Ocampo | SCHEDULE 13G/A | 2026-08-12 | 2026-06-30 | 4,884,490 | 6.4% |
| BlackRock, Inc. | SCHEDULE 13G/A | 2026-07-08 | 2026-06-30 | 7,964,299 | 10.4% |
| Abigail P. Johnson | SCHEDULE 13G/A | 2026-05-06 | 2026-03-31 | 10,617,759.72 | 14.1% |
| FMR LLC | SCHEDULE 13G/A | 2026-05-06 | 2026-03-31 | 10,617,759.72 | 14.1% |
| The Vanguard Group | SCHEDULE 13G/A | 2026-03-27 | 2026-03-13 | 0 | 0% |
| T. Rowe Price Associates, Inc. | SCHEDULE 13G/A | 2025-05-14 | 2025-03-31 | 3,187,119 | 4.3% |
| Invesco Ltd. | SCHEDULE 13G/A | 2025-02-07 | 2024-12-31 | 3,545,985 | 4.9% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.