MACOM Technology Solutions Holdings, Inc.
MX ˙ BMV ˙ US55405Y1001
SecurityMX:MTSI / MACOM Technology Solutions Holdings, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership10,617,759 shares
Ownership 14.10%
Fmr Llc ownership in MTSI / MACOM Technology Solutions Holdings, Inc.

2026-05-06 - Fmr Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 10,617,759 shares of MACOM Technology Solutions Holdings, Inc. (MX:MTSI). This represents 14.1 percent ownership of the company. In their previous filing dated 2026-02-06 , Fmr Llc had reported owning 8,033,058 shares, indicating an increase of 32.18 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-05-06 2026-05-06 13G/A 8,033,058 10,617,759 32.18 14.10 31.78
2026-02-06 2026-02-06 13G/A 6,703,728 8,033,058 19.83 10.70 20.22
2026-02-05 2026-02-05 13G/A 5,595,985 6,703,728 19.80 8.90 18.67
2025-08-06 2025-08-06 13G/A 4,638,282 5,595,985 20.65 7.50 16.42
2024-02-09 2024-02-09 13G/A 4,031,052 4,638,282 15.06 6.44 12.94
2023-02-09 2023-02-09 13G 2,008,692 4,031,052 100.68 5.70 86.59
2019-07-10 2019-07-10 13G/A 7,397,775 2,008,692 -72.85 3.06 -73.06
2019-02-13 2019-02-13 13G/A 9,660,787 7,397,775 -23.42 11.35 -24.35
2018-03-12 2018-03-12 13G/A 5,496,567 9,660,787 75.76 15.00 75.37
2018-02-13 2018-02-13 13G 583,293 5,496,567 842.33 8.55 676.84
2015-09-10 2015-09-10 13G/A 583,293 1.10
2015-02-13 2015-02-13 13G 2,922,833 6.14

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 10,610,440 4,129,789 63.72 2,356,260 112.27 0.0247
2026-02-17 2025-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 6,480,651 954,963 17.28 1,110,006 61.36 0.0566
2025-11-13 2025-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 5,525,688 124,409 2.30 687,893 -11.12 0.0358
2025-08-14 2025-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 5,401,279 340,688 6.73 773,949 52.36 0.0436
2025-05-12 2025-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 5,060,591 334,796 7.08 507,982 -17.26 0.0324
2025-02-13 2024-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,725,795 182,795 4.02 613,928 21.46 0.0366
2024-11-13 2024-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,543,000 -28,684 -0.63 505,454 -0.81 0.0308
2024-08-13 2024-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,571,684 -322,561 -6.59 509,606 8.87 0.0326
2024-05-13 2024-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,894,245 333,895 7.32 468,086 10.43 0.0314
2024-02-13 2023-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,560,350 -254,924 -5.29 423,884 7.91 0.0326
2023-11-13 2023-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,815,274 -137,876 -2.78 392,830 21.03 0.0340
2023-08-11 2023-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,953,150 394,647 8.66 324,580 0.51 0.0272
2023-08-11 2023-03-31 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,558,503 527,451 13.08 322,924 27.20 0.0295
2023-05-11 2023-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,558,503 527,451 322,924 0.0295
2023-02-13 2022-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 4,031,052 272,118 7.24 253,876 30.41 0.0252
2022-11-10 2022-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 3,758,934 -3,767 -0.10 194,674 12.23 0.0203
2022-08-12 2022-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 3,762,701 249,882 7.11 173,460 -17.52 0.0173
2022-05-13 2022-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 3,512,819 1,207,553 52.38 210,312 16.52 0.0168
2022-02-14 2021-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,305,266 202,379 9.62 180,502 32.32 0.0133
2022-02-14 2021-09-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,102,887 244,995 13.19 136,414 14.58 0.0108
2021-11-15 2021-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,102,887 244,995 136,414 0.0021
2021-08-13 2021-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,857,892 531,797 40.10 119,055 54.74 0.0093
2021-05-14 2021-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,326,095 353,660 36.37 76,940 43.75 0.0066
2021-02-08 2020-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 972,435 717,560 281.53 53,522 517.47 0.0048
2020-11-13 2020-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 254,875 254,875 8,668 0.0009
2020-08-24 2020-06-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 0 -124 -100.00 0 -100.00
2020-05-14 2020-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 124 0 0.00 2 -33.33 0.0000
2020-02-07 2019-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 124 124 3 0.0000
2019-11-13 2019-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 0 -2,008,692 -100.00 0 -100.00
2019-08-13 2019-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,008,692 -5,220,479 -72.21 30,391 -74.84 0.0035
2019-05-13 2019-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 7,229,171 -168,604 -2.28 120,800 12.54 0.0145
2019-02-13 2018-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 7,397,775 -1,314,417 -15.09 107,342 -40.19 0.0147
2018-11-09 2018-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 8,712,192 -472,580 -5.15 179,471 -15.19 0.0202
2018-08-10 2018-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 9,184,772 -476,015 -4.93 211,618 31.96 0.0250
2018-05-14 2018-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 9,660,787 4,164,220 75.76 160,369 -10.34 0.0190
2018-02-12 2017-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 5,496,567 4,267,240 347.12 178,859 226.14 0.0210
2017-11-13 2017-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,229,327 -28,717 -2.28 54,841 -21.84 0.0066
2017-08-29 2017-06-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,258,044 -6,198 -0.49 70,161 14.90 0.0087
2017-08-11 2017-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,258,044 -6,198 70,161
2017-05-11 2017-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 1,264,242 445,749 54.46 61,063 61.20 0.0078
2017-02-10 2016-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 818,493 529,110 182.84 37,880 209.17 0.0051
2016-11-14 2016-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 289,383 8,183 2.91 12,252 32.11 0.0016
2016-08-11 2016-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 281,200 0 0.00 9,274 -24.69 0.0013
2016-05-16 2016-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 281,200 281,200 0.00 12,314 9.59 0.0017
2016-02-12 2015-12-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 0 -335,710 -100.00 0 -100.00
2015-11-10 2015-09-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 335,710 -4,233,650 -92.65 9,732 -94.43 0.0014
2015-08-25 2015-06-30 13F/A-1 MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 4,569,360 -70,887 -1.53 174,778 1.09 0.0224
2015-08-13 2015-06-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 4,569,360 174,778
2015-05-14 2015-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 4,640,247 1,717,414 58.76 172,895 89.11 0.0220
2015-02-17 2014-12-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 2,922,833 600,944 25.88 91,426 80.29 0.0119
2014-11-14 2014-09-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 2,321,889 288,712 14.20 50,711 10.95 0.0069
2014-08-14 2014-06-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 2,033,177 687,396 51.08 45,706 65.27 0.0061
2014-05-15 2014-03-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 1,345,781 -49,111 -3.52 27,656 16.70 0.0038
2014-02-13 2013-12-31 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 1,394,892 48,332 3.59 23,699 3.41 0.0033
2013-11-14 2013-09-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 1,346,560 -231,363 -14.66 22,918 -0.52 0.0035
2013-09-24 2013-06-30 13F/A-1 MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 1,577,923 1,577,923 23,037 0.0038
2013-08-14 2013-06-30 13F MA COM TECHNOLOGY SOLUTIONS COM 55405Y100 1,577,923 23,037 0.0038
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.