401(k) · DOL Form 5500 · 2023

Proterra, Inc 401(k) Plan

Data updated 2026-08-25

$40M
Total assets Below avg plan size
1,099
Participants Near avg headcount
83rd
Percentile by assets National rank
$36,555
Avg per participant Low balance/head
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Official DOL plan name: Proterra, Inc 401(k) Plan · Sponsored by Proterra, Inc · South Carolina · Manufacturing

$40M in assets, 1,099 participants

Proterra, Inc's Proterra, Inc 401(k) Plan reported $40M in total assets and 1,099 participants in its 2023 DOL Form 5500 filing, ranking in the 83rd 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.

  • #14,230 in Manufacturing (18,722 peers)

Coverage in South Carolina

Proterra, Inc 401(k) Plan covers 1,099 participants in South Carolina, 3.0x the typical South Carolina plan (state average ~369 per filing). Assets: $40M.

#14,230
in Manufacturing (18,722 peers)
+23.5%
assets growth YoY
0.4×
vs typical plan assets (national mean)

Proterra, Inc 401(k) Plan's outsized position by total assets

Proterra, Inc 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$40,173,886 Top 17% higher than 83% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Proterra, Inc 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Proterra, Inc 401(k) Plan lands in the large band (1,099 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Proterra, Inc 401(k) Plan reported net income rose from $1M in the plan year 2022 filing to $8M in the plan year 2023 filing.
  • Proterra, Inc 401(k) Plan reported participants rose from 772 in the plan year 2022 filing to 1,099 in the plan year 2023 filing.
  • Proterra, Inc 401(k) Plan end-of-year assets rose from $33M in the plan year 2022 filing to $40M in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 271878459 · Proterra, Inc PY 2023 · 401(k)

Proterra, Inc 401(k) Plan · $40M · 1,099 · 83rd

  • IND $40M
  • IND 1,099
  • IND 83rd
  • IND 401(k)
  • IND near Express Services, Inc. Employee Retirement Benefit Plan
  • IND ind #14230

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Manufacturing retirement plans → · Plans in South Carolina →

Proterra, Inc 401(k) Plan in the asset neighbourhood

Intermatic Cash Accumulation PlanIntermatic Cash Accumulation…$40MProterra, Inc 401(k) Plan$40MExpress Services, Inc. Employee Retirement Benefit PlanExpress Services, Inc. Emplo…$40MMaron & Sandler 401(k) Profit Sharing PlanMaron & Sandler 401(k) Profi…$40MIpl US Holding Company 401(k) Retirement PlanIpl US Holding Company 401(k…$40M
End-of-year total assets ($M) among Proterra, Inc 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

South Carolina filing particulars

Total Assets (Beginning of Year)$33M
Net Assets (End of Year)$40M
Net Income$8M
Employer EIN271878459
Plan Effective Date2013-03-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Proterra, Inc)

Sponsor-wide plan assets over time

All Proterra, Inc plans reported in each filing year

Latest sponsor-wide plan assets
$136K 99.58339484287413% vs 2022
2024 filing year
$0M$20M$40M$60M 202220232024 $32.5M $0.14M ▼ -99.6%
Year Plans Participants Total Assets
2022 1 772 $33M
2023 1 1,099 $40M
2024 1 343 $136K

Nearby 401(k) Plans in South Carolina

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

Proterra, Inc 401(k) Plan vs. nearby 401(k) plans in South Carolina, assets vs. participants Scatter plot of 6 data points. 05000100001500020000 -1012345 Total assets ($B) Participants Proterra, Inc 401(k) Plan, Total assets ($B): 0.040173886 · Participants: 1099Proterra, Inc 401(k) PlanMichelin 401(k) Savings Plan, Total assets ($B): 4.081217676 · Participants: 14439Michelin 401(k) Savings PlanThe Savannah River Nuclear Solutions, LLC Defined Contribution Plan, Total assets ($B): 2.54970984 · Participants: 8661The Savannah River Nuclear Solutions, LLC Defined Contribution PlanSonoco Retirement & Savings Plan, Total assets ($B): 1.560739492 · Participants: 11311Sonoco Retirement & Savings PlanSonoco Retirement & Savings Plan, Total assets ($B): 1.313010355 · Participants: 10614Sonoco Retirement & Savings PlanBlue Cross Blue Shield of Sc Employee Savings and Salary Reduction Plan, Total assets ($B): 1.296149408 · Participants: 11348Blue Cross Blue Shield of Sc Employee Savings and Salary Reduction Plan
Proterra, Inc 401(k) Plan vs. nearby 401(k) plans in South Carolina, assets vs. participants
Compare Proterra, Inc 401(k) Plan side-by-side with 3 peers →

Proterra, Inc 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside South Carolina, the nearest 401(k) by assets is Express Services, Inc. Employee Retirement Benefit Plan in OK ($40M); by covered participants it is Netskope Retirement Savings Plan in CA (1,099 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,099 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Proterra, Inc 401(k) Plan assets move in 2023? ▼
Proterra, Inc 401(k) Plan grew sharply - up 23.5% during 2023, from $33M to $40M. Reported net income was $8M.
How have Proterra, Inc plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Proterra, Inc's sponsor-wide assets declined 99.6%, from $33M to $136K.
Where does Proterra, Inc 401(k) Plan rank by assets among Form 5500 filers? ▼
Proterra, Inc 401(k) Plan ranks in the 83rd percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Proterra, Inc 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Express Services, Inc. Employee Retirement Benefit Plan in OK ($40M, 398 participants).
Which 401(k) plans cover a similar participant headcount to Proterra, Inc 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Netskope Retirement Savings Plan in CA (1,099 participants, $81M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 271878459.

Read our methodology - how this data is sourced, computed, and verified.

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