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

SecurityMTSI / MACOM Technology Solutions Holdings, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership2,500 shares
Latest Disclosed Value $ 555,175
First Manhattan Co ownership in MTSI / MACOM Technology Solutions Holdings, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 2,500 shares of MACOM Technology Solutions Holdings, Inc. (US:MTSI) valued at $555,175 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,500 shares of MACOM Technology Solutions Holdings, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $975,850 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)
2026-05-15 2026-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 555 29.67 0.0015
2026-02-17 2025-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 428 37.62 0.0011
2025-11-14 2025-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 311 -13.13 0.0008
2025-08-14 2025-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 358 43.20 0.0010
2025-05-15 2025-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 251 -22.84 0.0007
2025-02-14 2024-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 325 16.55 0.0010
2024-11-14 2024-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 278 0.00 0.0008
2024-08-15 2024-06-30 13F/A-1 MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 279 16.32 0.0009
2024-08-14 2024-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 279 0.0009
2024-05-15 2024-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 239 3.02 0.0008
2024-02-13 2023-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 232 14.29 0.0008
2023-11-14 2023-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 204 24.54 0.0008
2023-08-14 2023-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 164 -7.91 0.0006
2023-05-15 2023-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 177 12.74 0.0007
2023-02-14 2022-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 0 0.00 157 21.71 0.0006
2022-11-14 2022-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 2,500 -9,500 -79.17 129 -76.67 0.0005
2022-08-15 2022-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 553 -22.98 0.0022
2022-05-16 2022-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 718 -23.54 0.0023
2022-02-14 2021-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 939 20.69 0.0031
2021-11-15 2021-09-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 778 1.30 0.0029
2021-08-16 2021-06-30 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 768 10.34 0.0028
2021-05-14 2021-03-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 696 5.45 0.0030
2021-02-16 2020-12-31 13F MACOM TECH SOLUTIONS HLDGS I COM 55405Y100 12,000 0 0.00 660 61.76 0.0032
2020-11-12 2020-09-30 13F MACOM TECH SOLUTIONS COM 55405Y100 12,000 -3,000 -20.00 408 -20.78 0.0021
2020-08-14 2020-06-30 13F MACOM TECH SOLUTIONS COM 55405Y100 15,000 -2,500 -14.29 515 55.59 0.0030
2020-05-06 2020-03-31 13F MACOM TECH SOLUTIONS COM 55405Y100 17,500 -2,500 -12.50 331 -37.78 0.0021
2020-02-13 2019-12-31 13F MACOM TECH SOLUTIONS COM 55405Y100 20,000 0 0.00 532 24.01 0.0027
2019-11-13 2019-09-30 13F MACOM TECH SOLUTIONS COM 55405Y100 20,000 0 0.00 429 42.05 0.0024
2019-08-16 2019-06-30 13F MACOM TECH SOLUTIONS COM USD0.001 55405Y100 20,000 0 0.00 302 -9.58 0.0017
2019-04-12 2019-03-31 13F MACOM TECH SOLUTIONS COM USD0.001 55405Y100 20,000 20,000 334 0.0019
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.