Macom Technology Solutions Holdings, Inc. 401(k) Plan: Login, Facts & Contact Information

Macom Technology Solutions Holdings, Inc. 401(k) Plan Facts

Plan name
MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Participants
1,670 (1,273 active employees)
Former employees with a balance
424
Plan assets
$277,038,591 at Dec 31, 2024
Average account balance
$166,790 across 1,661 accounts
Employer contributions
$6,959,562 in plan year 2024 (26% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Oct 5, 2009
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Oct 14, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $27.0 million went into the plan in contributions, $6.96 million of it from the employer (26%).
  • $25.6 million was paid out to participants.
  • Investment and other income added $40.1 million.

How the Macom Technology Solutions Holdings, Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20191,270$164.2 million$2.57 million$19.0 million
20201,150$196.5 million$2.29 million$18.5 million
20211,118$217.0 million$2.32 million$22.8 million
20221,181$176.2 million$2.51 million$10.9 million
20231,286$235.5 million$2.81 million$18.8 million
20241,670$277.0 million$6.96 million$25.6 million

Macom Technology Solutions Holdings, Inc. 401(k) Contact Information

Phone
978-656-2944
Mailing address
100 CHELMSFORD ST.,, LOWELL MA 01851
Plan sponsor
MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Employer identification number (EIN)
27-0306875
Plan number
001

Questions about the Macom Technology Solutions Holdings, Inc. 401(k)

Does Macom Technology Solutions Holdings, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $6.96 million, 26% of all contributions.

Does the Macom Technology Solutions Holdings, Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Macom Technology Solutions Holdings, Inc 401(k) plan?

1,670 participants at the start of plan year 2024, 1,273 of them active employees, and 424 former employees who still had money in the plan.

What is the average 401(k) balance at Macom Technology Solutions Holdings, Inc?

About $166,790 per account: $277.0 million in plan assets across 1,661 accounts with a balance at the end of plan year 2024.

Who manages the Macom Technology Solutions Holdings, Inc 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Macom Technology Solutions Holdings, Inc. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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