MACOM Technology Solutions Holdings, Inc.
US ˙ NasdaqGS ˙ US55405Y1001

SecurityMTSI / MACOM Technology Solutions Holdings, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership6,022 shares
Latest Disclosed Value $ 1,337,306
Assetmark, Inc reports 41.72% decrease in ownership of MTSI / MACOM Technology Solutions Holdings, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 6,022 shares of MACOM Technology Solutions Holdings, Inc. (US:MTSI) valued at $1,337,306 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 10,333 shares of MACOM Technology Solutions Holdings, Inc.. This represents a change in shares of -41.72% during the quarter. The current value of the position is $2,350,627 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 6,022 -4,311 -41.72 1,337 -24.42 0.0027
2026-01-23 2025-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 10,333 -248 -2.34 1,770 34.32 0.0036
2025-11-06 2025-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 10,581 -281 -2.59 1,317 -15.36 0.0028
2025-08-04 2025-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 10,862 10,167 1,462.88 1,556 2,155.07 0.0037
2025-05-06 2025-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 695 -1 -0.14 70 -23.33 0.0002
2025-02-06 2024-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 696 6 0.87 90 18.42 0.0002
2024-11-01 2024-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 690 0 0.00 77 0.00 0.0002
2024-08-13 2024-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 690 0 0.00 77 16.92 0.0002
2024-05-07 2024-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 690 -3 -0.43 66 1.56 0.0002
2024-02-09 2023-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 693 -122 -14.97 64 -3.03 0.0002
2023-10-27 2023-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 815 0 0.00 66 24.53 0.0003
2023-08-11 2023-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 815 0 0.00 53 -7.02 0.0002
2023-05-05 2023-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 815 -255 -23.83 58 -14.93 0.0002
2023-02-10 2022-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,070 0 0.00 67 21.82 0.0003
2022-11-01 2022-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,070 0 0.00 55 12.24 0.0003
2022-08-03 2022-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,070 -225 -17.37 49 -37.18 0.0002
2022-05-13 2022-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,295 -5 -0.38 78 -23.53 0.0003
2022-02-14 2021-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,300 0 0.00 102 21.43 0.0004
2021-11-12 2021-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,300 0 0.00 84 1.20 0.0004
2021-08-16 2021-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,300 0 0.00 83 10.67 0.0004
2021-05-14 2021-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,300 0 0.00 75 4.17 0.0004
2021-02-10 2020-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,300 0 0.00 72 63.64 0.0004
2020-11-13 2020-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,300 215 19.82 44 18.92 0.0003
2020-08-11 2020-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,085 0 0.00 37 76.19 0.0003
2020-05-12 2020-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,085 0 0.00 21 -27.59 0.0002
2020-02-11 2019-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,085 0 0.00 29 26.09 0.0002
2019-11-13 2019-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,085 0 0.00 23 43.75 0.0002
2019-08-14 2019-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 1,085 210 24.00 16 6.67 0.0001
2019-05-14 2019-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 875 0 0.00 15 15.38 0.0001
2019-02-13 2018-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 875 -62 -6.62 13 -31.58 0.0001
2018-11-13 2018-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 937 0 0.00 19 -13.64 0.0002
2018-08-01 2018-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 937 0 0.00 22 37.50 0.0002
2018-05-16 2018-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 937 0 0.00 16 -46.67 0.0002
2018-02-13 2017-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 937 180 23.78 30 -11.76 0.0003
2017-11-08 2017-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 0.00 34 -19.05 0.0004
2017-08-14 2017-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 0.00 42 13.51 0.0005
2017-09-15 2017-03-31 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 0.00 37 5.71 0.0005
2017-05-08 2017-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 37
2017-09-15 2016-12-31 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 0.00 35 9.38 0.0005
2017-02-14 2016-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 0 35
2017-09-14 2016-09-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 -8 -1.05 32 28.00 0.0005
2016-11-04 2016-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 757 -8 32
2017-09-14 2016-06-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 765 330 75.86 25 31.58 0.0004
2016-08-08 2016-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM COM 55405Y100 765 330 25
2017-09-14 2016-03-31 13F/A-1 MA COM TECHNOLOGY SOLUTIONS COM COM 55405Y100 435 435 19 0.0003
2016-05-13 2016-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM COM 55405Y100 435 19 0.0003
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.