401(k)
2024 plan-year 401(k) DOL Form 5500

Ampex Data Systems Corporation Savings Plan

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

Sponsored by Ampex Data Systems Corporation · California · Manufacturing

What the 2023 filing shows

Ampex Data Systems Corporation Savings Plan holds $36M for 72 participants — about $504,635 per participant, up 18.8% over the 2024 plan year.

$36M
total plan assets (2024 EOY)
72
covered participants
$504,635
avg assets per participant
+18.8%
assets growth YoY
Total Assets (2023)
$36M
Participants
72
State
Industry
Manufacturing

What the Filing Says About Ampex Data Systems Corporation Savings Plan

Ampex Data Systems Corporation Savings Plan is a 401(k) retirement plan sponsored by Ampex Data Systems Corporation, headquartered in California. As of the 2024 Form 5500 filing, the plan reports $36M in total end-of-year assets and covers 72 participants across the Manufacturing industry. The sponsor's EIN on file with the U.S. Department of Labor is 943112575, and the plan has been effective since 1956-05-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $31M at the beginning of 2024 to $36M at year-end — a gain of 18.8%. Net assets (after liabilities) closed the year at $36M, with reported net income of $6M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)$31M
Total Assets (End of Year)$36M
Net Assets (End of Year)$36M
Net Income$6M
Plan Type401(k)
Employer EIN943112575
Plan Effective Date1956-05-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Ampex Data Systems Corporation)

Year Plans Participants Total Assets
2022 1 48 $25M
2023 1 58 $31M
2024 1 72 $36M

Nearby 401(k) Plans in California

Peer 401(k) plans — same state, same plan type — ranked by total assets.

Frequently Asked Questions

How much money is in the Ampex Data Systems Corporation Savings Plan?
As of the 2024 Form 5500 filing, Ampex Data Systems Corporation Savings Plan holds $36M in total assets with 72 participants. It is sponsored by Ampex Data Systems Corporation.
What type of plan is Ampex Data Systems Corporation Savings Plan?
Ampex Data Systems Corporation Savings Plan is a 401(k) plan. It has been effective since 1956-05-01. The plan is filed with the U.S. Department of Labor under EIN 943112575.
Who sponsors the Ampex Data Systems Corporation Savings Plan?
Ampex Data Systems Corporation Savings Plan is sponsored by Ampex Data Systems Corporation, located in California. The sponsor's EIN is 943112575 and the plan operates in the Manufacturing industry.
How did Ampex Data Systems Corporation Savings Plan perform in 2024?
Ampex Data Systems Corporation Savings Plan grew by 18.8% during 2024, moving from $31M to $36M in total assets. Net income was $6M.
Where can I find official filings for Ampex Data Systems Corporation Savings Plan?
Official Form 5500 filings for Ampex Data Systems Corporation Savings Plan are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 943112575 or plan name at efast.dol.gov.
How does Ampex Data Systems Corporation Savings Plan compare to other plans?
You can compare Ampex Data Systems Corporation Savings Plan against other 401(k) plans on the plan type page, or view plans in California on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.

Explore PlainRetire

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) — original filing retrieval by EIN 943112575.

Reference: IRS Publication 560 — Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B — Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.