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

SecurityMTSI / MACOM Technology Solutions Holdings, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership29,496 shares
Latest Disclosed Value $ 6,550
Amalgamated Bank reports 2.65% increase in ownership of MTSI / MACOM Technology Solutions Holdings, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 29,496 shares of MACOM Technology Solutions Holdings, Inc. (US:MTSI) valued at $6,550,177 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 28,734 shares of MACOM Technology Solutions Holdings, Inc.. This represents a change in shares of 2.65% during the quarter. The current value of the position is $11,513,469 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.

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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)
2026-05-08 2026-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 29,496 762 2.65 7 50.00 0.0501
2026-02-05 2025-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 28,734 -914 -3.08 5 33.33 0.0355
2025-10-29 2025-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 29,648 1,937 6.99 4 0.00 0.0264
2025-08-04 2025-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 27,711 554 2.04 4 50.00 0.0307
2025-04-25 2025-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 27,157 -243 -0.89 3 -33.33 0.0233
2025-02-04 2024-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 27,400 -77 -0.28 4 0.00 0.0292
2024-10-30 2024-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 27,477 -319 -1.15 3 0.00 0.0252
2024-08-12 2024-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 27,796 -942 -3.28 3 50.00 0.0264
2024-04-23 2024-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 28,738 -5,578 -16.25 3 -33.33 0.0235
2024-02-06 2023-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 34,316 124 0.36 3 50.00 0.0255
2023-11-08 2023-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 34,192 -43 -0.13 3 0.00 0.0237
2023-08-11 2023-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 34,235 -706 -2.02 2 0.00 0.0182
2023-05-02 2023-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 34,941 -1,157 -3.21 2 0.00 0.0211
2023-02-10 2022-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 36,098 679 1.92 2 -99.89 0.0203
2022-11-09 2022-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 35,419 27,412 342.35 1,834 397.02 0.0177
2022-08-15 2022-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 8,007 36 0.45 369 -22.64 0.0034
2022-08-25 2022-03-31 13F/A-1 MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 7,971 -599 -6.99 477 -28.91 0.0037
2022-06-30 2022-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 7,971 -599 477 0.0038
2022-02-15 2021-12-31 13F/A-1 MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 8,570 -93 -1.07 671 19.40 0.0050
2022-02-15 2021-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 8,570 -93 671 0.0050
2021-10-29 2021-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 8,663 -534 -5.81 562 -4.58 0.0047
2021-08-16 2021-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 9,197 2,341 34.15 589 47.99 0.0047
2021-05-13 2021-03-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 6,856 -490 -6.67 398 -1.49 0.0149
2021-02-12 2020-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 7,346 39 0.53 404 62.25 0.0153
2020-10-30 2020-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 7,307 -216 -2.87 249 -3.49 0.0108
2020-08-10 2020-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 7,523 7,523 258 0.0119
2018-02-13 2017-12-31 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 0 -5,169 -100.00 0 -100.00
2017-11-09 2017-09-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 5,169 -93 -1.77 231 -21.16 0.0072
2017-08-10 2017-06-30 13F MACOM TECHNOLOGY SOLUTIONS HOLDS COM 55405Y100 5,262 5,262 293 0.0096
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.