MACOM TECH SOLUTIONS HLDGS I (MTSI)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 73,261,751 shares against 76,370,931 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| FMR LLC | $4.0B | 10,527,144 | 0.17% | 24q | -0.8%-$31.7M |
| BlackRock, Inc. | $3.6B | 9,512,899 | 0.05% | 8q | +11.1%+$360.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1.4B | 3,605,324 | 0.06% | 2q | +0.5%+$6.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.2B | 3,064,683 | 0.02% | 2q | +2.4%+$27.3M |
| T. Rowe Price Investment Management, Inc. | $1.1B | 2,850,185 | 0.71% | 14q | -36.5%-$622.2M |
| STATE STREET CORP | $860.5M | 2,262,242 | 0.03% | 31q | +5.1%+$41.6M |
| Invesco Ltd. | $817.6M | 2,149,581 | 0.06% | 31q | -41.5%-$579.8M |
| JPMORGAN CHASE & CO | $793.0M | 2,125,091 | 0.04% | 31q | +5.4%+$40.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $536.3M | 1,409,741 | 0.03% | 31q | +3.7%+$19.1M |
| WELLINGTON MANAGEMENT GROUP LLP | $458.6M | 1,205,711 | 0.08% | 7q | -22.1%-$130.2M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $443.6M | 1,166,242 | 0.14% | 7q | +40.8%+$128.5M |
| Capital Research Global Investors | $413.1M | 1,086,149 | 0.06% | 31q | -11.2%-$51.9M |
| NORGES BANK | $379.1M | 996,731 | 0.04% | 29q | +75.3%+$162.8M |
| Whale Rock Capital Management LLC | $376.1M | 988,785 | 3.02% | 3q | -15.8%-$70.8M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $372.8M | 980,134 | 0.04% | 31q | +7.1%+$24.8M |
| JANE STREET GROUP, LLC | $341.3M incl. $138.0M options CALL+PUT | 534,564 | 0.03% | 14q | +22579.8%+$339.8M |
| NEUBERGER BERMAN GROUP LLC | $314.4M | 826,969 | 0.21% | 31q | +4.8%+$14.5M |
| GOLDMAN SACHS GROUP INC | $309.0M | 812,421 | 0.03% | 31q | +88.6%+$145.2M |
| FRANKLIN RESOURCES INC | $303.9M | 798,891 | 0.07% | 16q | +59.2%+$112.9M |
| Qube Research & Technologies Ltd | $300.8M | 790,678 | 0.28% | new | NEW |
| Polar Capital Holdings Plc | $285.5M | 750,517 | 0.67% | 2q | -19.4%-$68.6M |
| Jupiter Topco LLC | $256.6M | 674,790 | 0.10% | new | FIRST |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $253.6M | 666,659 | 0.03% | 31q | +0.9%+$2.2M |
| BANK OF AMERICA CORP /DE/ | $247.7M | 651,293 | 0.02% | 31q | +35.5%+$64.9M |
| GW&K Investment Management, LLC | $241.4M | 634,742 | 1.89% | 31q | -24.4%-$77.7M |
| Rafferty Asset Management, LLC | $240.7M | 632,776 | 0.55% | 4q | +35.3%+$62.8M |
| Artisan Partners Limited Partnership | $238.8M | 627,850 | 0.38% | 16q | -40.0%-$159.5M |
| RAYMOND JAMES FINANCIAL INC | $238.8M | 627,804 | 0.06% | 7q | +6.3%+$14.3M |
| NORTHERN TRUST CORP | $212.5M | 558,716 | 0.02% | 31q | +4.9%+$9.9M |
| Bank of New York Mellon Corp | $204.6M | 537,879 | 0.03% | 31q | +34.2%+$52.1M |
| BESSEMER GROUP INC | $201.2M | 529,062 | 0.28% | 14q | -0.8%-$1.6M |
| BARCLAYS PLC | $177.8M | 467,343 | 0.03% | 31q | -36.4%-$101.6M |
| Clearbridge Investments, LLC | $167.8M | 441,217 | 0.14% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $164.8M incl. $1.1M options CALL+PUT | 430,400 | 0.06% | 12q | +28.4%+$36.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $162.8M incl. $104.4M options CALL+PUT | 153,601 | 0.01% | 31q | +312.6%+$123.3M |
| VANGUARD FIDUCIARY TRUST CO | $162.2M | 426,467 | 0.04% | 2q | +5.2%+$8.0M |
| CITIGROUP INC | $158.0M incl. $2.0M options PUT | 410,179 | 0.05% | 31q | -3.2%-$5.3M |
| UBS Group AG | $152.1M incl. $3.8M options CALL | 389,948 | 0.02% | 31q | -51.8%-$163.6M |
| Evergreen Quality Fund GP, Ltd. | $150.9M | 396,600 | 2.43% | new | NEW |
| MORGAN STANLEY | $144.7M | 380,490 | 0.01% | 35q | -31.5%-$66.4M |
| DEUTSCHE BANK AG\ | $138.0M | 362,727 | 0.04% | 34q | +208.5%+$93.3M |
| AMERICAN CENTURY COMPANIES INC | $127.4M | 334,965 | 0.06% | 23q | -2.4%-$3.2M |
| Allspring Global Investments Holdings, LLC | $126.9M | 362,062 | 0.19% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $126.5M | 569,511 | 0.04% | 31q | -27.8%-$48.8M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $122.2M | 321,342 | 0.05% | 3q | +277.9%+$89.9M |
| Stephens Investment Management Group LLC | $120.4M | 316,408 | 1.29% | 10q | -38.7%-$75.9M |
| FIRST TRUST ADVISORS LP | $118.4M | 311,380 | 0.07% | 15q | +36.3%+$31.6M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $116.9M | 307,227 | 0.18% | 3q | -51.6%-$124.7M |
| Analog Century Management LP | $112.7M | 296,293 | 4.13% | 23q | -32.1%-$53.3M |
| Amundi | $109.8M | 288,605 | 0.03% | 6q | +54.3%+$38.6M |
| DIMENSIONAL FUND ADVISORS LP | $108.9M | 286,462 | 0.02% | 31q | -45.9%-$92.3M |
| Assenagon Asset Management S.A. | $104.4M | 274,466 | 0.07% | 4q | +1042.7%+$95.3M |
| CITADEL ADVISORS LLC | $103.7M incl. $87.0M options CALL+PUT | 43,699 | 0.01% | 31q | -92.6%-$1.3B |
| JENNISON ASSOCIATES LLC | $102.6M | 269,632 | 0.06% | 23q | -10.0%-$11.4M |
| TimesSquare Capital Management, LLC | $99.5M | 261,585 | 1.46% | 21q | -23.3%-$30.3M |
| Nuveen, LLC | $99.1M | 260,418 | 0.02% | 6q | +22.7%+$18.3M |
| GENEVA CAPITAL MANAGEMENT LLC | $96.1M | 252,722 | 2.20% | 5q | -26.5%-$34.6M |
| Driehaus Capital Management LLC | $95.5M | 251,107 | 0.55% | 5q | -25.4%-$32.6M |
| FEDERATED HERMES, INC. | $94.8M | 249,291 | 0.14% | 27q | +5362.1%+$93.1M |
| AQR CAPITAL MANAGEMENT LLC | $88.0M | 234,075 | 0.03% | 27q | +10.3%+$8.2M |
| SEGALL BRYANT & HAMILL, LLC | $82.2M | 216,179 | 0.98% | 12q | -2.5%-$2.1M |
| LOOMIS SAYLES & CO L P | $78.6M | 206,610 | 0.10% | 26q | -35.9%-$44.1M |
| LORD, ABBETT & CO. LLC | $72.9M | 191,527 | 0.21% | 7q | -24.4%-$23.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $71.9M | 188,986 | 0.01% | 31q | -0.9%-$685.8K |
| OBERWEIS ASSET MANAGEMENT INC/ | $68.2M | 179,356 | 1.41% | 8q | -16.9%-$13.9M |
| RHUMBLINE ADVISERS | $67.5M | 177,460 | 0.05% | 31q | +6.8%+$4.3M |
| TD Asset Management Inc | $67.4M | 177,214 | 0.06% | 14q | -19.9%-$16.8M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $66.9M | 175,952 | 0.22% | 11q | +32.8%+$16.5M |
| PRINCIPAL FINANCIAL GROUP INC | $65.3M | 171,614 | 0.03% | 25q | -12.1%-$9.0M |
| Squarepoint Ops LLC | $64.5M incl. $12.5M options CALL+PUT | 136,576 | 0.07% | 7q | -20.7%-$16.8M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $63.1M | 169,307 | 0.04% | 29q | -32.3%-$30.1M |
| SEI INVESTMENTS CO | $63.0M | 165,735 | 0.06% | 31q | -24.4%-$20.4M |
| WELLS FARGO & COMPANY/MN | $55.2M | 145,252 | 0.01% | 31q | +421.7%+$44.7M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $54.5M | 143,179 | 0.04% | 31q | -53.2%-$61.9M |
| Swiss National Bank | $52.0M | 136,750 | 0.03% | 31q | +2.4%+$1.2M |
| SG Americas Securities, LLC | $50.7M | 133,241 | 0.03% | 12q | +453.2%+$41.5M |
| Fiera Capital Corp | $48.9M | 128,519 | 0.18% | 5q | -42.8%-$36.6M |
| NOMURA HOLDINGS INC | $48.7M incl. $11.5M options PUT | 97,958 | 0.06% | 4q | +1294.6%+$45.3M |
| Silverberg Bernstein Capital Management LLC | $45.5M | 119,700 | 17.44% | 11q | -2.9%-$1.4M |
| CIBC Bancorp USA Inc. | $43.7M | 114,823 | 0.05% | new | NEW |
| ENVESTNET ASSET MANAGEMENT INC | $42.5M | 111,642 | 0.01% | 31q | -3.4%-$1.5M |
| California Public Employees Retirement System | $42.2M | 110,933 | 0.02% | 10q | +0.7%+$272.7K |
| NEW YORK STATE COMMON RETIREMENT FUND | $41.4M | 108,885 | 0.05% | 31q | -55.2%-$51.0M |
| Aristotle Capital Boston, LLC | $39.1M | 102,830 | 2.62% | 31q | -50.1%-$39.3M |
| Mirae Asset Global Investments Co., Ltd. | $38.7M | 101,677 | 0.06% | 8q | -4.6%-$1.8M |
| Ranger Investment Management, L.P. | $38.2M | 100,486 | 2.42% | 4q | -32.3%-$18.2M |
| BNP PARIBAS FINANCIAL MARKETS | $38.2M | 100,439 | 0.01% | 15q | -31.4%-$17.5M |
| IMC-Chicago, LLC | $37.4M CALL+PUT | options only | 0.01% | 2q | OPTIONS |
| Panview Capital Ltd | $37.3M | 97,984 | 6.56% | new | NEW |
| Retirement Systems of Alabama | $37.0M | 97,263 | 0.11% | 16q | -10.3%-$4.3M |
| ROYAL BANK OF CANADA | $36.4M | 95,585 | 0.01% | 31q | +22.5%+$6.7M |
| Legal & General Group Plc | $36.2M | 95,152 | 0.01% | 31q | +6.1%+$2.1M |
| Gotham Asset Management, LLC | $35.1M | 92,346 | 0.08% | 6q | +29.0%+$7.9M |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | $33.4M | 87,929 | 0.12% | 31q | -31.1%-$15.1M |
| VICTORY CAPITAL MANAGEMENT INC | $30.8M | 80,844 | 0.02% | 30q | -17.1%-$6.3M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $30.5M | 80,057 | 0.04% | 3q | +14.3%+$3.8M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $29.8M | 78,410 | 0.03% | 31q | -1.2%-$373.1K |
| Point72 Asset Management, L.P. | $29.0M incl. $3.3M options CALL+PUT | 67,457 | 0.03% | 10q | -46.3%-$25.1M |
| Russell Investments Group, Ltd. | $27.4M | 72,020 | 0.02% | 31q | +65.4%+$10.8M |
| FRONTIER CAPITAL MANAGEMENT CO LLC | $25.6M | 67,363 | 0.24% | 31q | -4.2%-$1.1M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-30 | 13G/A | Susan M. Ocampo INDIVIDUAL | 6.4% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-14 | CHUNG PETER Y | Director | Sold | 43,268 | $16.4M |
| 2026-05-29 | Daly Stephen G | President and CEO | Sold | 15,828 | $5.8M ×19 |
| 2026-05-18 | Kober John | Senior VP and CFO | Sold | 7,644 | $2.7M ×13 |
| 2026-08-17 | Kober John | Senior VP and CFO | Sold | 7,389 | $2.4M ×8 |
| 2026-06-25 | Hwang Donghyun Thomas | SVP, Global Sales | Sold | 2,620 | $1.0M ×12 |
| 2026-05-18 | Hwang Donghyun Thomas | SVP, Global Sales | Sold | 2,595 | $935.9K ×11 |
| 2026-05-11 | RIBAR GEOFFREY G | Director | Sold | 1,623 | $587.3K |
| 2026-05-13 | BLAND CHARLES R | Director | Sold | 800 | $304.0K |
| 2026-10-26 | Kober John | Senior VP and CFO | Sold | 1,027 | $243.0K |
| 2026-10-01 | Roth Ambra R. | SVP, GC and Secretary | Sold | 653 | $195.9K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 161 | $399.2M | 1,405,776 | 22 | 58 | 48 | 0.0% |
| Q2 2026 | 663 | $28.2B | 73,261,751 | 180 | 206 | 189 | 1.6% |
| Q1 2026 | 521 | $16.4B | 74,097,216 | 103 | 170 | 170 | 0.3% |
| Q4 2025 | 462 | $12.8B | 74,781,823 | 71 | 159 | 137 | 0.1% |
| Q3 2025 | 434 | $8.9B | 70,850,381 | 63 | 161 | 120 | 0.4% |
| Q2 2025 | 428 | $9.6B | 66,384,098 | 81 | 174 | 102 | 0.4% |
| Q1 2025 | 388 | $6.5B | 63,736,568 | 54 | 161 | 105 | 1.3% |
| Q4 2024 | 390 | $8.2B | 62,379,710 | 69 | 111 | 110 | 0.7% |
| Q3 2024 | 341 | $7.1B | 63,970,507 | 57 | 108 | 110 | 0.5% |
| Q2 2024 | 346 | $7.0B | 62,810,201 | 69 | 100 | 117 | 0.3% |
| Q1 2024 | 303 | $6.1B | 63,001,372 | 38 | 95 | 102 | 0.4% |
| Q4 2023 | 298 | $5.6B | 60,309,348 | 42 | 89 | 107 | 0.4% |
| Q3 2023 | 277 | $4.6B | 56,584,342 | 50 | 85 | 86 | 0.5% |
| Q2 2023 | 267 | $3.6B | 54,492,068 | 34 | 101 | 72 | 0.4% |
| Q1 2023 | 273 | $4.2B | 59,381,552 | 30 | 87 | 90 | 0.2% |
| Q4 2022 | 275 | $3.4B | 53,341,785 | 54 | 80 | 86 | 0.5% |
| Q3 2022 | 227 | $3.0B | 57,877,750 | 49 | 68 | 73 | 0.6% |
| Q2 2022 | 220 | $2.6B | 94,322,491 | 31 | 73 | 72 | 1.1% |
| Q1 2022 | 237 | $4.0B | 65,826,323 | 29 | 79 | 76 | 0.6% |
| Q4 2021 | 238 | $5.9B | 87,090,831 | 46 | 60 | 80 | 1.1% |
| Q3 2021 | 203 | $5.0B | 89,702,716 | 25 | 65 | 67 | 0.5% |
| Q2 2021 | 203 | $4.4B | 73,998,399 | 25 | 55 | 83 | 0.6% |
| Q1 2021 | 219 | $4.1B | 70,205,584 | 46 | 61 | 79 | 1.3% |
| Q4 2020 | 203 | $7.5B | 134,403,053 | 33 | 61 | 64 | 1.1% |
| Q3 2020 | 194 | $2.2B | 62,144,153 | 31 | 60 | 75 | 2.2% |
| Q2 2020 | 178 | $2.2B | 63,172,085 | 42 | 51 | 60 | 3.0% |
| Q1 2020 | 150 | $1.7B | 86,918,377 | 20 | 49 | 52 | 0.7% |
| Q4 2019 | 158 | $1.7B | 64,751,512 | 27 | 38 | 61 | 1.0% |
| Q3 2019 | 154 | $1.4B | 63,968,391 | 22 | 47 | 48 | 2.7% |
| Q2 2019 | 153 | $999.2M | 65,180,492 | 29 | 43 | 45 | 1.3% |
| Q1 2019 | 151 | $1.3B | 75,593,466 | 27 | 54 | 42 | 0.5% |
| Q4 2018 | 143 | $1.1B | 75,121,789 | 6 | 2 | 3 | 0.4% |
