MTSI Institutional Ownership & Shareholders
MACOM TECHNOLOGY SOLUTIONS H (MTSI) is currently held by 638 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $26.98B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is currently the largest disclosed institutional shareholder of MTSI tracked by InsiderSet, reporting ownership valued at approximately $4.00B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.47B, representing an estimated loss of -38.38% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 55% of the total disclosed MTSI value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in MACOM TECHNOLOGY SOLUTIONS H (MTSI).
This page ranks the largest institutional MTSI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
638
Total Reported Value
$26.98B
Largest Holder
Fmr Llc
Largest Position
$4.00B
Insider Transactions (90d)
24
Latest Filing Quarter
Q2 2026
New Institutional Positions
61
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.17% | 10,527,144 | $4,004,209,656 | $2,467,457,282 | -$1,536,752,374 | -38.38% | |
| Blackrock, Inc. | 0.05% | 9,512,899 | $3,618,421,462 | $2,229,728,397 | -$1,388,693,065 | -38.38% | |
| Vanguard Portfolio Management Llc | 0.06% | 3,605,324 | $1,371,357,090 | $845,051,892 | -$526,305,198 | -38.38% | |
| Vanguard Capital Management Llc | 0.02% | 3,064,683 | $1,165,713,473 | $718,331,048 | -$447,382,425 | -38.38% | |
| T. Rowe Price Investment Management, Inc. | 0.71% | 2,850,185 | $1,084,125,000 | $668,054,862 | -$416,070,138 | -38.38% | |
| State Street Corp | 0.03% | 2,262,242 | $860,488,990 | $530,246,902 | -$330,242,088 | -38.38% | |
| Invesco Ltd. | 0.06% | 2,149,581 | $817,635,999 | $503,840,291 | -$313,795,708 | -38.38% | |
| Jpmorgan Chase & Co | 0.05% | 2,125,091 | $792,990,012 | $498,100,079 | -$294,889,933 | -37.19% | |
| Geode Capital Management, Llc | 0.03% | 1,409,741 | $536,341,338 | $330,429,193 | -$205,912,145 | -38.39% | |
| Wellington Management Group Llp | 0.08% | 1,205,711 | $458,616,294 | $282,606,601 | -$176,009,693 | -38.38% | |
| Massachusetts Financial Services Co | 0.14% | 1,166,242 | $443,584,418 | $273,355,462 | -$170,228,956 | -38.38% | |
| Capital Research Global Investors | 0.06% | 1,086,149 | $413,138,495 | $254,582,464 | -$158,556,031 | -38.38% | |
| Norges Bank | 0.04% | 996,731 | $379,126,570 | $233,623,779 | -$145,502,791 | -38.38% | |
| Whale Rock Capital Management | Alex Sacerdote | 3.02% | 988,785 | $376,104,150 | $231,761,316 | -$144,342,834 | -38.38% |
| Price T Rowe Associates Inc | 0.04% | 980,134 | $372,815,000 | $229,733,608 | -$143,081,392 | -38.38% | |
| Goldman Sachs Group Inc | 0.03% | 812,421 | $309,020,227 | $190,423,358 | -$118,596,869 | -38.38% | |
| Qube Research & Technologies Ltd | 0.33% | 790,678 | $300,750,191 | $185,327,016 | -$115,423,175 | -38.38% | |
| Polar Capital Holdings Plc | 0.81% | 750,517 | $285,474,151 | $175,913,680 | -$109,560,471 | -38.38% | |
| Charles Schwab Investment Management Inc | 0.03% | 666,659 | $253,577,084 | $156,258,203 | -$97,318,881 | -38.38% | |
| Bank Of America Corp | 0.02% | 651,293 | $247,732,319 | $152,656,566 | -$95,075,753 | -38.38% | |
| Gw&K Investment Management, Llc | 1.89% | 634,742 | $241,439,000 | $148,777,177 | -$92,661,823 | -38.38% | |
| Rafferty Asset Management, Llc | 0.55% | 632,776 | $240,689,007 | $148,316,367 | -$92,372,640 | -38.38% | |
| Artisan Partners Limited Partnership | 0.39% | 627,850 | $238,815,341 | $147,161,762 | -$91,653,580 | -38.38% | |
| Raymond James Financial Inc | 0.07% | 627,804 | $238,797,807 | $147,150,980 | -$91,646,827 | -38.38% | |
| Northern Trust Corp | 0.02% | 558,716 | $212,518,805 | $130,957,443 | -$81,561,362 | -38.38% | |
| Bank Of New York Mellon Corp | 0.03% | 537,879 | $204,593,194 | $126,073,459 | -$78,519,735 | -38.38% | |
| Jane Street Group, Llc | 0.13% | 534,564 | $203,332,109 | $125,296,456 | -$78,035,653 | -38.38% | |
| Bessemer Group Inc | 0.28% | 529,062 | $201,240,000 | $124,006,842 | -$77,233,158 | -38.38% | |
| Fenghe Fund Management Pte. Ltd. | 9.00% | 651,956 | $185,690,108 | $152,811,967 | -$32,878,141 | -17.71% | |
| Barclays Plc | 0.06% | 467,343 | $177,763,255 | $109,540,526 | -$68,222,729 | -38.38% | |
| Janus Henderson Group Plc | 0.09% | 784,118 | $174,109,136 | $183,789,418 | +$9,680,282 | +5.56% | |
| Clearbridge Investments, Llc | 0.14% | 441,217 | $167,825,737 | $103,416,853 | -$64,408,884 | -38.38% | |
| Millennium Management Llc | 0.11% | 430,400 | $163,711,248 | $100,881,456 | -$62,829,792 | -38.38% | |
| Vanguard Fiduciary Trust Co | 0.04% | 426,467 | $162,215,253 | $99,959,600 | -$62,255,653 | -38.38% | |
| Citigroup Inc | 0.07% | 410,179 | $156,019,786 | $96,141,856 | -$59,877,930 | -38.38% | |
| Evergreen Quality Fund Gp, Ltd. | 2.43% | 396,600 | $150,854,742 | $92,959,074 | -$57,895,668 | -38.38% | |
| Ubs Group Ag | 0.02% | 389,948 | $148,324,520 | $91,399,912 | -$56,924,608 | -38.38% | |
| Morgan Stanley | 0.01% | 380,490 | $144,727,537 | $89,183,051 | -$55,544,486 | -38.38% | |
| Deutsche Bank Ag\ | 0.04% | 362,727 | $137,970,469 | $85,019,582 | -$52,950,887 | -38.38% | |
| American Century Companies Inc | 0.06% | 334,965 | $127,410,732 | $78,512,446 | -$48,898,286 | -38.38% | |
| Allspring Global Investments Holdings, Llc | 0.19% | 362,062 | $126,949,799 | $84,863,712 | -$42,086,087 | -33.15% | |
| Alliancebernstein L.P. | 0.04% | 569,511 | $126,471,308 | $133,487,683 | +$7,016,375 | +5.55% | |
| Arrowstreet Capital, Limited Partnership | 0.05% | 321,342 | $122,228,857 | $75,319,351 | -$46,909,506 | -38.38% | |
| Stephens Investment Management Group Llc | 1.29% | 316,408 | $120,352,111 | $74,162,871 | -$46,189,240 | -38.38% | |
| First Trust Advisors Lp | 0.07% | 311,380 | $118,439,098 | $72,984,358 | -$45,454,740 | -38.38% | |
| Nomura Asset Management International Inc. | 0.18% | 307,227 | $116,860,000 | $72,010,937 | -$44,849,063 | -38.38% | |
| Neuberger Berman Group Llc | 0.08% | 665,423 | $114,054,106 | $155,968,497 | +$41,914,391 | +36.75% | |
| Analog Century Management Lp | 4.13% | 296,293 | $112,700,968 | $69,448,116 | -$43,252,852 | -38.38% | |
| Dimensional Fund Advisors Lp | 0.02% | 286,462 | $108,948,849 | $67,143,828 | -$41,805,021 | -38.37% | |
| Jennison Associates Llc | 0.06% | 269,632 | $102,559,923 | $63,199,044 | -$39,360,879 | -38.38% |
Frequently asked questions about MTSI
Who are the largest institutional holders of MTSI?
The largest institutional holders of MTSI reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and T. Rowe Price Investment Management, Inc.. InsiderSet ranks institutional holders by their latest reported MTSI position.
What is MTSI institutional ownership?
This page tracks MTSI positions reported by institutional investment managers through SEC Form 13F. MACOM TECHNOLOGY SOLUTIONS H (MTSI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MTSI?
InsiderSet currently tracks 638 institutional managers reporting MTSI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MTSI shareholders.
How much MTSI stock do institutions own?
Institutional investment managers disclosed approximately $26.98B in MTSI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MTSI institutional ownership last updated?
The latest MTSI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MTSI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MTSI position after the reporting date.
Are institutions buying or selling MTSI?
Institutional buying and selling can be analyzed by comparing MTSI positions across consecutive 13F reporting periods. InsiderSet's MTSI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MTSI ownership changes.
How has MTSI institutional ownership changed over time?
InsiderSet tracks MTSI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.