401(k) · DOL Form 5500 · 2023
Alterra Mountain Company 401(k) Plan
Data updated 2026-08-11
- $310M
- Total assets
- 11,850
- Participants
- 96th
- Percentile by assets
- $26,197
- Avg per participant
Official DOL plan name: Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan · Sponsored by Alterra Mountain Company · Colorado · Arts, Entertainment & Recreation
$310M in assets, 11,850 participants
Alterra Mountain Company's Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan reported $310M in total assets and 11,850 participants in its 2023 DOL Form 5500 filing, ranking in the 96th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.
- 96th percentile by assets (of 127,072 plans)
- #2,905 in Arts, Entertainment & Recreation (2,945 peers)
Coverage in Colorado
Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan covers 11,850 participants in Colorado, 32x the typical Colorado plan (state average ~376 per filing). Assets: $310M.
- $310M
- total plan assets (2023 EOY)
- 11,850
- covered participants
- 96th
- percentile by assets (of 127,072 plans)
- $26,197
- avg assets per participant
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan reported net income rose from -$55M in the plan year 2022 filing to $70M in the plan year 2023 filing.
- Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan end-of-year assets rose from $240M in the plan year 2022 filing to $310M in the plan year 2023 filing.
- Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan reported participants fell from 12,118 in the plan year 2022 filing to 11,850 in the plan year 2023 filing.
Participants vs Colorado filers
In Colorado, the average filing covers about 376 participants across 2,719 plans. Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan reports 11,850 participants - 32x that state average ($310M EOY assets).
Colorado filing particulars
| Total Assets (Beginning of Year) | $240M |
|---|---|
| Net Assets (End of Year) | $310M |
| Net Income | $70M |
| Employer EIN | 911616891 |
| Plan Effective Date | 1978-06-30 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Alterra Mountain Company)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 12,118 | $240M |
| 2023 | 1 | 11,850 | $310M |
| 2024 | 1 | 10,620 | $366M |
Nearby 401(k) Plans in Colorado
Peer 401(k) plans, same state, same plan type, ranked by total assets.
Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan vs. nearby 401(k) plans in Colorado, assets vs. participants
- Davita Retirement Savings Plan $3.3B · 57,711
- Ball Corporation 401(k) and Employee Stock Ownership Plan $2.8B · 10,349
- Empower Retirement, LLC 401(k) Savings Plan $1.9B · 10,036
- Woodward Retirement Savings Plan $1.8B · 5,847
- Arcadis U.S., Inc. Retirement Savings Plan $1.7B · 5,491
Scale composition for Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan
Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan reports $310M in end-of-year assets across 11,850 participants (0.003% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.013% of 93,925,755 covered participants) - about $26,197 per participant (19% of the national average assets-per-participant) . Net income for plan year 2023 was $70M.
This plan identity (EIN 911616891, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $240M to $366M (+52.3%) while covered participants moved from 12,118 to 10,620 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 12,118 | $240M | Open filing |
| 2023 | 11,850 | $310M | This page |
| 2024 · index core | 10,620 | $366M | Open filing |
The same sponsor also keeps 1 other index-core plan on PlainRetire:
- Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan (401(k), $366M, 10,620 participants)
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan by total assets, not by location.
- Retirement Plan of Sullivan & Cromwell LLP (NY) $311M · 185
- Nutanix, Inc. 401(k) Plan (CA) $311M · 2,830
- Map Communications Holdings, Inc. 401(k) Employees' Stock Ownership Plan (VA) $311M · 2,040
- Dominion Enterprises 401(k) Employees' Savings Plan (VA) $310M · 904
Frequently Asked Questions
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Filing takeaways
Ways to act on Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan's numbers.
- By total assets, Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan ranks in the top 5% of all filed plans by assets. See the largest plans
- Compare it side-by-side against 3 similar 401(k) plans in Colorado. Compare plans
- Alterra Mountain Company's sponsor-wide assets have grown 52.3% since 2022 across 3 plan years on file. More Arts, Entertainment & Recreation plans