Latest Period
Q1 2026
Security Snapshot
MACOM Technology Solutions Holdings, Inc. - COMMON STOCK (MTSI) Institutional Ownership
CUSIP: 55405Y100
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
510
Shares (Excl. Options)
74,078,806
Price
$222.07
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- MTSI on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 74,078,806
- Total 13F value
- $16,376,692,029
- Portfolio coverage rank
- 0.01%
- Share change
- +2,710,349
- Value change
- +$656,574,029
- Number of holders
- 510
- Shares outstanding
- 74,768,033
- SEC-reported price per share
- $380.37
- Insider filing price
- $380.37
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MTSI - MACOM Technology Solutions Holdings, Inc. - COMMON STOCK is tracked under CUSIP 55405Y100.
- 510 institutions reported positions in Q1 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 510 to 4 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $16,376,692,029 to $784,305.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 510 institutions filings for Q1 2026.
Security key
55405Y100
Latest holder period
Q1 2026
13F holders
510
13D/G owners
6
CIK / CUSIP context first
Open Q1 2026 holders
MTSI full holder history
MACOM Technology Solutions Holdings, Inc. SEC filings
MACOM Technology Solutions Holdings, Inc. company facts
MACOM Technology Solutions Holdings, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 55405Y100:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
Security
MTSI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| FMR LLC | 14% | +31% | $2,357,885,901 | +$573,984,551 | 10,617,760 | +32% | FMR LLC | 31 Mar 2026 |
| OCAMPO SUSAN | 9.1% | -15% | $1,510,385,788 | -$264,905,749 | 6,801,395 | -15% | Susan M. Ocampo | 31 Mar 2026 |
| BlackRock, Inc. | 9.1% | $839,427,231 | 6,742,929 | BlackRock, Inc. | 30 Sep 2025 | |||
| T. Rowe Price Investment Management, Inc. | 6% | -20% | $996,224,230 | -$220,200,837 | 4,486,082 | -18% | T. Rowe Price Investment Management, Inc. | 31 Mar 2026 |
| Invesco Ltd. | 4.9% | $374,739,695 | 3,545,985 | Invesco Ltd. | 31 Dec 2024 | |||
| PRICE T ROWE ASSOCIATES INC /MD/ | 4.3% | -24% | $336,814,736 | -$85,708,277 | 3,187,119 | -20% | T. Rowe Price Associates, Inc. | 31 Mar 2025 |
As of 31 Mar 2026, 510 institutional investors reported holding 74,078,806 shares of MACOM Technology Solutions Holdings, Inc. - COMMON STOCK (MTSI). This represents 99% of the company’s total 74,768,033 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
72%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 14% | 10,610,440 | +64% | 0.12% | $2,356,260,403 |
| BlackRock, Inc. | 11% | 8,566,283 | +14% | 0.03% | $1,902,314,542 |
| T. Rowe Price Investment Management, Inc. | 6% | 4,486,082 | -17% | 0.69% | $996,225,000 |
| Invesco Ltd. | 4.9% | 3,673,815 | +7.3% | 0.12% | $815,844,041 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.8% | 3,587,081 | 0% | 0.04% | $796,583,078 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 2,992,851 | 0% | 0.02% | $664,622,422 |
| STATE STREET CORP | 2.9% | 2,152,751 | +1.6% | 0.02% | $478,061,415 |
| JPMORGAN CHASE & CO | 2.7% | 2,015,630 | +82% | 0.03% | $422,254,606 |
| WELLINGTON MANAGEMENT GROUP LLP | 2.1% | 1,548,035 | +52% | 0.06% | $343,772,131 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 1,359,534 | +7.3% | 0.02% | $301,976,305 |
| Capital Research Global Investors | 1.6% | 1,222,672 | -8.5% | 0.04% | $271,518,771 |
| Whale Rock Capital Management LLC | 1.6% | 1,174,991 | +50% | 3.4% | $260,930,251 |
| Artisan Partners Limited Partnership | 1.4% | 1,047,159 | -16% | 0.38% | $232,542,690 |
| Polar Capital Holdings Plc | 1.2% | 930,778 | 0.9% | $206,697,870 | |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.2% | 914,850 | -53% | 0.02% | $203,162,000 |
| GW&K Investment Management, LLC | 1.1% | 839,062 | -31% | 1.6% | $186,332,000 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.1% | 828,448 | +77% | 0.07% | $183,974,200 |
| UBS Group AG | 1.1% | 809,410 | -11% | 0.03% | $179,745,678 |
| ALLIANCEBERNSTEIN L.P. | 1.1% | 789,042 | -26% | 0.04% | $135,147,114 |
| NEUBERGER BERMAN GROUP LLC | 1.1% | 788,819 | +19% | 0.13% | $174,959,224 |
| JANUS HENDERSON GROUP PLC | 1% | 784,118 | +15% | 0.08% | $174,109,136 |
| BARCLAYS PLC | 0.98% | 734,568 | +28% | 0.06% | $163,125,516 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.88% | 660,860 | +3% | 0.02% | $146,757,180 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 0.85% | 635,061 | -15% | 0.24% | $141,028,000 |
| CITADEL ADVISORS LLC | 0.79% | 590,570 | +344% | 0.09% | $131,147,880 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 2,061 | $784,305 | +$23,628 | $380.37 | 4 |
| 2026 Q1 | 74,078,806 | $16,376,692,029 | +$656,574,029 | $222.07 | 510 |
| 2025 Q4 | 71,828,625 | $12,308,017,968 | +$312,950,697 | $171.28 | 459 |
| 2025 Q3 | 69,469,913 | $8,649,293,832 | +$362,591,873 | $124.49 | 426 |
| 2025 Q2 | 66,187,174 | $9,483,530,796 | +$488,096,280 | $143.29 | 417 |
| 2025 Q1 | 62,964,635 | $6,316,888,810 | +$6,720,575 | $100.38 | 380 |
| 2024 Q4 | 62,372,858 | $8,102,967,412 | -$24,291,936 | $129.91 | 382 |
| 2024 Q3 | 62,615,680 | $6,964,420,911 | +$97,021,141 | $111.26 | 336 |
| 2024 Q2 | 61,410,524 | $6,845,167,496 | +$115,246,815 | $111.47 | 343 |
| 2024 Q1 | 60,586,666 | $5,794,518,372 | +$263,378,647 | $95.64 | 297 |
| 2023 Q4 | 57,883,604 | $5,380,566,565 | +$125,598,879 | $92.95 | 294 |
| 2023 Q3 | 56,520,022 | $4,611,033,178 | +$203,841,829 | $81.58 | 272 |
| 2023 Q2 | 54,490,676 | $3,570,886,663 | -$15,318,870 | $65.53 | 264 |
| 2023 Q1 | 54,612,995 | $3,867,029,192 | +$98,499,321 | $70.84 | 261 |
| 2022 Q4 | 53,379,917 | $3,361,927,233 | +$29,097,267 | $62.98 | 265 |
| 2022 Q3 | 53,052,450 | $2,748,083,190 | +$134,685,079 | $51.79 | 226 |
| 2022 Q2 | 50,637,357 | $2,335,089,873 | +$11,867,154 | $46.10 | 215 |
| 2022 Q1 | 50,294,016 | $3,012,400,983 | -$5,747,219 | $59.87 | 233 |
| 2021 Q4 | 50,063,115 | $3,919,023,996 | -$9,436,887 | $78.30 | 224 |
| 2021 Q3 | 50,204,723 | $3,256,079,897 | +$76,386,873 | $64.87 | 194 |
| 2021 Q2 | 49,069,268 | $3,151,446,344 | +$16,020,940 | $64.08 | 196 |
| 2021 Q1 | 48,701,147 | $2,824,806,782 | +$17,088,492 | $58.02 | 219 |
| 2020 Q4 | 48,918,415 | $2,692,045,927 | +$110,439,145 | $55.04 | 195 |
| 2020 Q3 | 46,980,142 | $1,597,678,280 | -$28,297,059 | $34.01 | 192 |
| 2020 Q2 | 47,814,742 | $1,642,466,541 | -$63,133,346 | $34.35 | 170 |