Plymouth Rock Assurance Corporation 401(k) Plan: Login, Facts & Contact Information

Plymouth Rock Assurance Corporation 401(k) Plan Facts

Plan name
THE PLYMOUTH ROCK COMPANIES SAVINGS AND INVESTMENT PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
PLYMOUTH ROCK ASSURANCE CORPORATION
Participants
2,897 (1,969 active employees)
Former employees with a balance
854
Plan assets
$505,323,263 at Dec 31, 2024
Average account balance
$177,680 across 2,844 accounts
Employer contributions
$7,935,630 in plan year 2024 (27% of all contributions)
Recordkeeper
The Vanguard Group, Inc.
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1986
✓ 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 15, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $30.0 million went into the plan in contributions, $7.94 million of it from the employer (27%).
  • $38.4 million was paid out to participants.
  • Investment and other income added $63.5 million.
  • Administrative expenses were $118,031, about $42 per account.

How the Plymouth Rock Assurance Corporation 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20192,165$333.2 million$6.71 million$16.2 million
20202,332$401.0 million$7.05 million$20.8 million
20212,451$454.7 million$6.57 million$28.5 million
20222,453$383.3 million$6.67 million$20.8 million
20232,503$450.4 million$7.46 million$27.3 million
20242,897$505.3 million$7.94 million$38.4 million

Plymouth Rock Assurance Corporation 401(k) Contact Information

Phone
617-720-1620
Mailing address
695 ATLANTIC AVENUE, BOSTON MA 02111
Plan sponsor
PLYMOUTH ROCK ASSURANCE CORPORATION
Employer identification number (EIN)
04-2800590
Plan number
001

Questions about the Plymouth Rock Assurance Corporation 401(k)

Does Plymouth Rock Assurance Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $7.94 million, 27% of all contributions.

Does the Plymouth Rock Assurance Corporation 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Plymouth Rock Assurance Corporation 401(k) plan?

2,897 participants at the start of plan year 2024, 1,969 of them active employees, and 854 former employees who still had money in the plan.

What is the average 401(k) balance at Plymouth Rock Assurance Corporation?

About $177,680 per account: $505.3 million in plan assets across 2,844 accounts with a balance at the end of plan year 2024.

Who manages the Plymouth Rock Assurance Corporation 401(k) accounts?

Vanguard (listed on the filing as THE VANGUARD GROUP, INC.) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Plymouth Rock Assurance Corporation. How do I access my 401(k)?

Your account stays with Vanguard 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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