Intersystems Corporation 401(k) Plan: Login, Facts & Contact Information

Intersystems Corporation 401(k) Plan Facts

Plan name
INTERSYSTEMS CORPORATION 401(K) PROFIT SHARING RETIREMENT PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
INTERSYSTEMS CORPORATION
Participants
1,130 (914 active employees)
Former employees with a balance
261
Plan assets
$341,130,709 at Dec 31, 2024
Average account balance
$288,361 across 1,183 accounts
Employer contributions
$9,795,763 in plan year 2024 (39% of all contributions)
Recordkeeper
The Vanguard Group, Inc.
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Mar 1, 1984
✓ 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 Jul 30, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $24.9 million went into the plan in contributions, $9.80 million of it from the employer (39%).
  • $13.4 million was paid out to participants.
  • Investment and other income added $46.7 million.
  • Administrative expenses were $5,760, about $5 per account.

How the Intersystems Corporation 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019821$183.0 million$5.04 million$3.73 million
2020904$216.3 million$6.62 million$8.32 million
2021943$258.8 million$6.80 million$10.6 million
2022961$228.0 million$7.21 million$7.48 million
20231,021$282.9 million$8.55 million$11.3 million
20241,130$341.1 million$9.80 million$13.4 million

Intersystems Corporation 401(k) Contact Information

Phone
617-621-0600
Mailing address
ONE MEMORIAL DRIVE, CAMBRIDGE MA 02142
Plan sponsor
INTERSYSTEMS CORPORATION
Employer identification number (EIN)
04-2639026
Plan number
001

Questions about the Intersystems Corporation 401(k)

Does Intersystems Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $9.80 million, 39% of all contributions.

Does the Intersystems Corporation 401(k) have automatic enrollment?

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

How many people are in the Intersystems Corporation 401(k) plan?

1,130 participants at the start of plan year 2024, 914 of them active employees, and 261 former employees who still had money in the plan.

What is the average 401(k) balance at Intersystems Corporation?

About $288,361 per account: $341.1 million in plan assets across 1,183 accounts with a balance at the end of plan year 2024.

Who manages the Intersystems 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 Intersystems 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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