401(k) · DOL Form 5500 · 2022

Seagen Inc. 401(k) Plan

Data updated 2026-08-25

$390M
Total assets Above avg plan size
2,404
Participants Above avg headcount
97th
Percentile by assets National rank
$162,367
Avg per participant Above avg balance/head
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Official DOL plan name: Seagen Inc. 401(k) Plan · Sponsored by Seagen Inc. · Washington · Professional & Technical Services

$390M in assets, 2,404 participants

Seagen Inc.'s Seagen Inc. 401(k) Plan reported $390M in total assets and 2,404 participants in its 2022 DOL Form 5500 filing, ranking in the 97th 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.

  • #21,174 in Professional & Technical Services (21,562 peers)

Where Seagen Inc. 401(k) Plan sits by assets

Seagen Inc. 401(k) Plan sits in the top 5% of all filed plans by assets, $390M for 2,404 participants (~$162,367/participant), down 3.1% in 2022.

#21,174
in Professional & Technical Services (21,562 peers)
-3.1%
assets change YoY
3.9×
vs typical plan assets (national mean)

The plan reported a net loss of $13M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Seagen Inc. 401(k) Plan's outsized position by total assets

Seagen Inc. 401(k) Plan vs every filed plan by assets

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

$390,331,074 Top 3% higher than 97% 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

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

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Seagen Inc. 401(k) Plan lands in the large band (2,404 participants).

EBSA filing schedule strip

Filing strip 911874389 · Seagen Inc. PY 2022 · 401(k)

Seagen Inc. 401(k) Plan · $390M · 2,404 · 97th

  • ASSETS $390M
  • PCT 2,404
  • EIN 97th
  • RANK 401(k)
  • PHOTO near Corning Inv Plan Unionized Employees
  • IND ind #21174

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 Professional & Technical Services retirement plans → · Plans in Washington →

Seagen Inc. 401(k) Plan in the asset neighbourhood

Matthews International Corporation 401(k) PlanMatthews International Corpo…$391MJeld-Wen 401(k) Retirement Savings PlanJeld-Wen 401(k) Retirement S…$391MCorning Inv Plan Unionized EmployeesCorning Inv Plan Unionized E…$391MSeagen Inc. 401(k) Plan$390MKutak Rock LLP 401(k) Profit Sharing PlanKutak Rock LLP 401(k) Profit…$390M
End-of-year total assets ($M) among Seagen Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$403M
Net Assets (End of Year)$390M
Net Income-$13M
Employer EIN911874389
Plan Effective Date1998-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Seagen Inc.)

Sponsor-wide plan assets over time

All Seagen Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$560M 43.46894861873077% vs 2022
2023 filing year
$300M$400M$500M$600M 20222023 $390M $560M ▲ +43.5%
Year Plans Participants Total Assets
2022 1 2,404 $390M
2023 2 6,198 $560M

Nearby 401(k) Plans in Washington

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

Seagen Inc. 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. -500000050000010000001500000 -20020406080 Total assets ($B) Participants Seagen Inc. 401(k) Plan, Total assets ($B): 0.390331074 · Participants: 2404Seagen Inc. 401(k) PlanThe Boeing Company 401(k) Retirement Plan, Total assets ($B): 63.503643295 · Participants: 118434The Boeing Company 401(k) Retirement PlanMicrosoft Corporation Savings Plus 401(k) Plan, Total assets ($B): 39.602667639 · Participants: 109797Microsoft Corporation Savings Plus 401(k) PlanCostco 401(k) Retirement Plan, Total assets ($B): 25.912962472 · Participants: 181505Costco 401(k) Retirement PlanAmazon 401(k) Plan, Total assets ($B): 17.732345025 · Participants: 1230308Amazon 401(k) PlanT-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust, Total assets ($B): 7.280031396 · Participants: 75797T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust
Seagen Inc. 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare Seagen Inc. 401(k) Plan side-by-side with 3 peers →

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

Outside Washington, the nearest 401(k) by assets is Corning Inv Plan Unionized Employees in NY ($391M); by covered participants it is Care Hospice, Inc. 401(k) Plan in VA (2,404 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($390M here).

Similar participant headcount

Nearest other-state filings by covered participants (2,404 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 Seagen Inc. 401(k) Plan assets move in 2022? ▼
Seagen Inc. 401(k) Plan edged down modestly - down 3.1% during 2022, from $403M to $390M. Reported net income was -$13M.
How have Seagen Inc. plan assets changed over time? ▼
Across 2 plan years on file (2022-2023), Seagen Inc.'s sponsor-wide assets grew 43.5%, from $390M to $560M.
Where does Seagen Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Seagen Inc. 401(k) Plan ranks in the 97th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Seagen Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Corning Inv Plan Unionized Employees in NY ($391M, 3,938 participants).
Which 401(k) plans cover a similar participant headcount to Seagen Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Care Hospice, Inc. 401(k) Plan in VA (2,404 participants, $28M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 911874389.

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.