LOWELL, MA
MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.MTSI— Latest position per institution from SEC 13F filings
15
Institutional holders
58.67M
Total shares held
18B
Estimated value
2.93M
Avg. position size
FMR LLC
CIK 315066
Shares
10.53M
Value
4B
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
9.51M
Value
3.62B
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
7.23M
Value
1.24B
Filed
Dec 31, 2025
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
4.98M
Value
554.97M
Filed
Jun 30, 2024
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.61M
Value
1.37B
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.06M
Value
1.17B
Filed
Jun 30, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
2.85M
Value
1.08M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
2.26M
Value
860.49M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
2.15M
Value
817.64M
Filed
Jun 30, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
2.13M
Value
792.99M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.41M
Value
536.34M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
1.21M
Value
458.62M
Filed
Jun 30, 2026
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 912938
Shares
1.17M
Value
443.58M
Filed
Jun 30, 2026
CAPITAL RESEARCH GLOBAL INVESTORS
CIK 1422848
Shares
1.09M
Value
413.14M
Filed
Jun 30, 2026
NORGES BANK
CIK 1374170
Shares
996.73K
Value
379.13M
Filed
Jun 30, 2026
WHALE ROCK CAPITAL MANAGEMENT LLC
CIK 1387322
Shares
988.78K
Value
376.10M
Filed
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
980.13K
Value
372.81K
Filed
Jun 30, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
897.26K
Value
341.29M
Filed
Jun 30, 2026
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
826.97K
Value
314.39M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
812.42K
Value
309.02M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 10.53M | 4B | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 9.51M | 3.62B | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 7.23M | 1.24B | Dec 31, 2025 |
| 4 | BLACKROCK FINANCE, INC. | 1364742 | 4.98M | 554.97M | Jun 30, 2024 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.61M | 1.37B | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.06M | 1.17B | Jun 30, 2026 |
| 7 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 2.85M | 1.08M | Jun 30, 2026 |
| 8 | STATE STREET CORP | 93751 | 2.26M | 860.49M | Jun 30, 2026 |
| 9 | INVESCO LTD. | 914208 | 2.15M | 817.64M | Jun 30, 2026 |
| 10 | JPMORGAN CHASE & CO | 19617 | 2.13M | 792.99M | Jun 30, 2026 |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.41M | 536.34M | Jun 30, 2026 |
| 12 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 1.21M | 458.62M | Jun 30, 2026 |
| 13 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 912938 | 1.17M | 443.58M | Jun 30, 2026 |
| 14 | CAPITAL RESEARCH GLOBAL INVESTORS | 1422848 | 1.09M | 413.14M | Jun 30, 2026 |
| 15 | NORGES BANK | 1374170 | 996.73K | 379.13M | Jun 30, 2026 |
| 16 | WHALE ROCK CAPITAL MANAGEMENT LLC | 1387322 | 988.78K | 376.10M | Jun 30, 2026 |
| 17 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 980.13K | 372.81K | Jun 30, 2026 |
| 18 | JANE STREET GROUP, LLC | 1595888 | 897.26K | 341.29M | Jun 30, 2026 |
| 19 | NEUBERGER BERMAN GROUP LLC | 1465109 | 826.97K | 314.39M | Jun 30, 2026 |
| 20 | GOLDMAN SACHS GROUP INC | 886982 | 812.42K | 309.02M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.