401(k) · DOL Form 5500 · 2022

Arrowhead Pharmaceuticals, Inc. 401(k) Plan

Data updated 2026-08-25

$29M
Total assets Below avg plan size
346
Participants Below avg headcount
83rd
Percentile by assets National rank
$84,889
Avg per participant Below avg balance/head
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Official DOL plan name: Arrowhead 401(k) Plan and Trust · Sponsored by Arrowhead Pharmaceuticals, Inc. · California · Administrative & Support Services

$29M in assets, 346 participants

Arrowhead Pharmaceuticals, Inc.'s Arrowhead 401(k) Plan and Trust reported $29M in total assets and 346 participants in its 2022 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.

  • #4,529 in Administrative & Support Services (4,927 peers)

Where Arrowhead 401(k) Plan and Trust sits by assets

Arrowhead 401(k) Plan and Trust sits in the top quartile of all filed plans by assets, $29M for 346 participants (~$84,889/participant), up 4.8% in 2022.

#4,529
in Administrative & Support Services (4,927 peers)
+4.8%
assets growth YoY
0.3×
vs typical plan assets (national mean)

Arrowhead 401(k) Plan and Trust's outsized position by total assets

Arrowhead 401(k) Plan and Trust vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$29,371,639 Top 17% higher than 83% of 139,123 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 2022

Arrowhead 401(k) Plan and Trust among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Arrowhead 401(k) Plan and Trust sits mid-pack in the medium band (346 participants).

EBSA filing schedule strip

Filing strip 460408024 · Arrowhead Pharmaceuticals, Inc. PY 2022 · 401(k)

Arrowhead 401(k) Plan and Trust · $29M · 346 · 83rd

  • ASSETS $29M
  • PCT 346
  • EIN 83rd
  • RANK 401(k)
  • PHOTO near Schenck USA Savings and Investment Plan
  • IND ind #4529

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 Administrative & Support Services retirement plans → · Plans in California →

Arrowhead 401(k) Plan and Trust in the asset neighbourhood

Arrowhead 401(k) Plan and TrustArrowhead 401(k) Plan and Tr…$29MSchenck USA Savings and Investment PlanSchenck USA Savings and Inve…$29MGreerwalker LLP 401(k) Profit Sharing PlanGreerwalker LLP 401(k) Profi…$29MThe Western Sugar Cooperative Hourly Savings and Investment PlanThe Western Sugar Cooperativ…$29MAvenue Capital Group and Affiliates 401(k) Profit SharingAvenue Capital Group and Aff…$29M
End-of-year total assets ($M) among Arrowhead 401(k) Plan and Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$28M
Net Assets (End of Year)$29M
Net Income$1M
Employer EIN460408024
Plan Effective Date2005-01-15
Filing StatusFILING RECEIVED

Sponsor Plan History (Arrowhead Pharmaceuticals, Inc.)

Sponsor-wide plan assets over time

All Arrowhead Pharmaceuticals, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$60M 105.31429315197562% vs 2022
2024 filing year
$20M$30M$40M$50M$60M$70M 202220232024 $29.4M $60.3M ▲ +105.3%
Year Plans Participants Total Assets
2022 1 346 $29M
2023 1 428 $44M
2024 1 546 $60M

Nearby 401(k) Plans in California

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

Arrowhead 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 ($B) Participants Arrowhead 401(k) Plan and Trust, Total assets ($B): 0.029371639 · Participants: 346Arrowhead 401(k) Plan and TrustWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Arrowhead 401(k) Plan and Trust vs. nearby 401(k) plans in California, assets vs. participants

Arrowhead 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 Schenck USA Savings and Investment Plan in NY ($29M); by covered participants it is The International Companies Savings and Profit Sharing Plan in MO (346 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (346 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Arrowhead 401(k) Plan and Trust assets move in 2022?
Arrowhead 401(k) Plan and Trust edged up modestly - up 4.8% during 2022, from $28M to $29M. Reported net income was $1M.
How have Arrowhead Pharmaceuticals, Inc. plan assets changed over time?
Across 3 plan years on file (2022-2024), Arrowhead Pharmaceuticals, Inc.'s sponsor-wide assets grew 105.3%, from $29M to $60M.
Where does Arrowhead 401(k) Plan and Trust rank by assets among Form 5500 filers?
Arrowhead 401(k) Plan and Trust ranks in the 83rd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Arrowhead 401(k) Plan and Trust?
Among 401(k) plans in other states, the closest by assets is Schenck USA Savings and Investment Plan in NY ($29M, 155 participants).
Which 401(k) plans cover a similar participant headcount to Arrowhead 401(k) Plan and Trust?
Among 401(k) plans in other states, the closest by covered participants is The International Companies Savings and Profit Sharing Plan in MO (346 participants, $39M in assets).