W. B. Mason Co. Inc. 401(k) Plan: Login, Facts & Contact Information

W. B. Mason Co. Inc. 401(k) Plan Facts

Plan name
W. B. MASON COMPANY RETIREMENT 401(K) PLAN & TRUST
Plan type
401(k) with employer contributions
Plan sponsor
W. B. MASON CO. INC.
Participants
3,488 (2,781 active employees)
Former employees with a balance
1,133
Plan assets
$204,913,404 at Dec 31, 2024
Average account balance
$54,038 across 3,792 accounts
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Sep 1, 1988
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 Sep 4, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $15.4 million went into the plan in contributions.
  • $20.0 million was paid out to participants.
  • Investment and other income added $26.3 million.
  • Administrative expenses were $415,737, about $110 per account.

How the W. B. Mason Co. Inc. 401(k) changed, 20192024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20194,225$155.9 million$5,476$14.4 million
20204,545$168.0 million$21,384$24.2 million
20214,065$190.1 million$1.45 million$16.5 million
20223,751$156.3 million$543,514$14.9 million
20233,508$183.7 million$1.60 million$17.3 million
20243,488$204.9 million$0$20.0 million

W. B. Mason Co. Inc. 401(k) Contact Information

Phone
888-926-2766
Mailing address
59 CENTRE STREET, BROCKTON MA 02303
Plan sponsor
W. B. MASON CO. INC.
Employer identification number (EIN)
04-2455641
Plan number
001

Questions about the W. B. Mason Co. Inc. 401(k)

Does W. B. Mason Co. Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement.

Does the W. B. Mason Co. Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the W. B. Mason Co. Inc 401(k) plan?

3,488 participants at the start of plan year 2024, 2,781 of them active employees, and 1,133 former employees who still had money in the plan.

What is the average 401(k) balance at W. B. Mason Co. Inc?

About $54,038 per account: $204.9 million in plan assets across 3,792 accounts with a balance at the end of plan year 2024.

Who manages the W. B. Mason Co. 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 W. B. Mason Co. 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.

Related Companies
Headquarter: 507 E GRANT STREET, THORP, WI, 54771
Headquarter: 916 NORTH POPLAR STREET, CHARLOTTE, NC, 28206
Headquarter: 909 THIRD AVE 24TH FLOOR, NEW YORK, NY, 10022
Headquarter: 800 CAPITOL STREET SUITE 3000, HOUSTON, TX, 77002
Headquarter: 6800 CINTAS BLVD, MASON, OH, 45040