401(k) · DOL Form 5500 · 2023

Ultragenyx Pharmaceutical Inc. 401(k) Plan

Data updated 2026-08-25

$166M
Total assets Near avg plan size
1,155
Participants Near avg headcount
94th
Percentile by assets National rank
$144,042
Avg per participant Near avg balance/head
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Official DOL plan name: Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust · Sponsored by Ultragenyx Pharmaceutical Inc. · California · Manufacturing

$166M in assets, 1,155 participants

Ultragenyx Pharmaceutical Inc.'s Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust reported $166M in total assets and 1,155 participants in its 2023 DOL Form 5500 filing, ranking in the 94th 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.

  • #16,998 in Manufacturing (18,722 peers)

Where Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust sits by assets

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust sits in the top 10% of all filed plans by assets, $166M for 1,155 participants (~$144,042/participant), up 41.8% in 2023.

#16,998
in Manufacturing (18,722 peers)
+41.8%
assets growth YoY
1.7×
vs typical plan assets (national mean)

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust's outsized position by total assets

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust vs every filed plan by assets

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

$166,368,074 Top 6% higher than 94% 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

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust'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. Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust lands in the large band (1,155 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust reported net income rose from $2M in the plan year 2022 filing to $49M in the plan year 2023 filing.
  • Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust end-of-year assets rose from $117M in the plan year 2022 filing to $166M in the plan year 2023 filing.
  • Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust reported participants rose from 1,016 in the plan year 2022 filing to 1,155 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 272546083 · Ultragenyx Pharmaceutical Inc. PY 2023 · 401(k)

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust · $166M · 1,155 · 94th

  • NET $166M
  • BOOK 1,155
  • VS-ST 94th
  • BOY 401(k)
  • SCH near Arco Companies Retirement Plan
  • EBSA ind #16998

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 California →

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust in the asset neighbourhood

Ultragenyx Pharmaceutical Inc. 401(k) Plan and TrustUltragenyx Pharmaceutical In…$166MArco Companies Retirement PlanArco Companies Retirement Pl…$166MArco Companies Retirement PlanArco Companies Retirement Pl…$166MVialto Partners US Retirement PlanVialto Partners US Retiremen…$166MCarson Tahoe Health System 401(k) PlanCarson Tahoe Health System 4…$166M
End-of-year total assets ($M) among Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$117M
Net Assets (End of Year)$166M
Net Income$49M
Employer EIN272546083
Plan Effective Date2013-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Ultragenyx Pharmaceutical Inc.)

Sponsor-wide plan assets over time

All Ultragenyx Pharmaceutical Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$218M 85.7175450219616% vs 2022
2024 filing year
$100M$150M$200M$250M 202220232024 $117M $218M ▲ +85.7%
Year Plans Participants Total Assets
2022 1 1,016 $117M
2023 1 1,155 $166M
2024 1 1,090 $218M

Nearby 401(k) Plans in California

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

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust, Total assets ($B): 0.166368074 · Participants: 1155Ultragenyx Pharmaceutical Inc. 401(k) Plan and TrustWells Fargo & Company 401(k) Plan, Total assets ($B): 51.831350351 · Participants: 193919Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 39.047152408 · Participants: 122867Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 26.320437734 · Participants: 63105Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 22.17918189 · Participants: 59863Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 19.779511539 · Participants: 106111Apple 401(k) Plan
Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust vs. nearby 401(k) plans in California, assets vs. participants
Compare Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust side-by-side with 3 peers →

Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Arco Companies Retirement Plan in MO ($166M); by covered participants it is Nustar Thrift Plan in TX (1,155 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($166M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,155 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 Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust assets move in 2023? ▼
Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust surged - up 41.8% during 2023, from $117M to $166M. Reported net income was $49M.
How have Ultragenyx Pharmaceutical Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Ultragenyx Pharmaceutical Inc.'s sponsor-wide assets grew 85.7%, from $117M to $218M.
Where does Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust rank by assets among Form 5500 filers? ▼
Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust? ▼
Among 401(k) plans in other states, the closest by assets is Arco Companies Retirement Plan in MO ($166M, 1,631 participants).
Which 401(k) plans cover a similar participant headcount to Ultragenyx Pharmaceutical Inc. 401(k) Plan and Trust? ▼
Among 401(k) plans in other states, the closest by covered participants is Nustar Thrift Plan in TX (1,155 participants, $329M 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 272546083.

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.