MACOM Technology Solutions Holdings, Inc.
MX ˙ BMV ˙ US55405Y1001
SecurityMX:MTSI / MACOM Technology Solutions Holdings, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership932 shares
Latest Disclosed Value $ 206,979
Brown Advisory Inc ownership in MTSI / MACOM Technology Solutions Holdings, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 932 shares of MACOM Technology Solutions Holdings, Inc. (MX:MTSI) valued at $206,979 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on June 28, 2018 disclosing 0 shares of MACOM Technology Solutions Holdings, Inc..

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 932 932 207 0.0002
2018-06-28 2018-03-31 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 0 -671,655 -100.00 0 -100.00
2018-02-12 2017-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 671,655 -550,976 -45.06 21,854 -59.93 0.0692
2017-11-13 2017-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,222,631 93,217 8.25 54,542 -13.41 0.1809
2017-08-14 2017-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,129,414 18,305 1.65 62,987 17.37 0.1925
2017-05-15 2017-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,111,109 65,436 6.26 53,666 10.90 0.1830
2017-02-13 2016-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,045,673 77,987 8.06 48,393 18.12 0.1728
2016-11-14 2016-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 967,686 64,781 7.17 40,971 37.59 0.1408
2016-08-09 2016-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 902,905 40,801 4.73 29,778 -21.12 0.1046
2016-05-13 2016-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 862,104 -2,906 -0.34 37,751 6.73 0.1303
2016-02-08 2015-12-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 865,010 38,333 4.64 35,370 47.59 0.1200
2015-11-13 2015-09-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 826,677 215,313 35.22 23,965 2.49 0.0856
2015-08-11 2015-06-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 611,364 367,581 150.78 23,383 157.44 0.0761
2015-05-14 2015-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 243,783 243,783 9,083 0.0289
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.