Amplitude, Inc. 401(k) Plan: Login, Facts & Contact Information

Amplitude, Inc. 401(k) Plan Facts

Plan name
AMPLITUDE, INC. RETIREMENT TRUST
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
AMPLITUDE, INC.
Participants
735 (562 active employees)
Former employees with a balance
247
Plan assets
$44,481,057 at Dec 31, 2024
Average account balance
$65,317 across 681 accounts
Employer contributions
$383 in plan year 2024
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Nov 1, 2015
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 10, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $11.6 million went into the plan in contributions, $383 of it from the employer (0%).
  • $4.83 million was paid out to participants.
  • Investment and other income added $5.41 million.
  • Administrative expenses were $46,937, about $69 per account.

How the Amplitude, Inc. 401(k) changed, 20192024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019211$5.11 million$279,472
2020282$8.94 million$810,957
2021357$16.3 million$271,661$1.23 million
2022591$21.7 million$0$1.49 million
2023697$32.4 million$44$3.55 million
2024735$44.5 million$383$4.83 million

Amplitude, Inc. 401(k) Contact Information

Phone
817-718-4093
Mailing address
201 3RD ST., STE. 200, SAN FRANCISCO CA 94103
Plan sponsor
AMPLITUDE, INC.
Employer identification number (EIN)
45-3937349
Plan number
001

Questions about the Amplitude, Inc. 401(k)

Does Amplitude, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $383, 0% of all contributions.

Does the Amplitude, Inc 401(k) have automatic enrollment?

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

How many people are in the Amplitude, Inc 401(k) plan?

735 participants at the start of plan year 2024, 562 of them active employees, and 247 former employees who still had money in the plan.

What is the average 401(k) balance at Amplitude, Inc?

About $65,317 per account: $44.5 million in plan assets across 681 accounts with a balance at the end of plan year 2024.

Who manages the Amplitude, 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 Amplitude, 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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