401(k) · DOL Form 5500 · 2022

The Baseball Club of Seattle, Lllp 401(k) Plan

Data updated 2026-08-25

$47M
Total assets Below avg plan size
411
Participants Below avg headcount
87th
Percentile by assets National rank
$113,379
Avg per participant Below avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: The Seattle Mariners 401(k) Plan · Sponsored by The Baseball Club of Seattle, Lllp · Washington · Arts, Entertainment & Recreation

$47M in assets, 411 participants

The Baseball Club of Seattle, Lllp's The Seattle Mariners 401(k) Plan reported $47M in total assets and 411 participants in its 2022 DOL Form 5500 filing, ranking in the 87th 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.

  • #2,857 in Arts, Entertainment & Recreation (3,077 peers)

Coverage in Washington

The Seattle Mariners 401(k) Plan covers 411 participants in Washington, about 28% of the average Washington filer (state average ~1,476 per filing). Assets: $47M.

#2,857
in Arts, Entertainment & Recreation (3,077 peers)
-13.0%
assets change YoY
0.5×
vs typical plan assets (national mean)

The plan reported a net loss of $7M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

The Seattle Mariners 401(k) Plan's outsized position by total assets

The Seattle Mariners 401(k) Plan vs every filed plan by assets

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

$46,598,572 Top 13% higher than 87% 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

The Seattle Mariners 401(k) Plan 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. The Seattle Mariners 401(k) Plan sits mid-pack in the medium band (411 participants).

EBSA filing schedule strip

Filing strip 911545344 · The Baseball Club of Seattle, Lllp PY 2022 · 401(k)

The Seattle Mariners 401(k) Plan · $47M · 411 · 87th

  • BOY $47M
  • BOY 411
  • BOY 87th
  • BOY 401(k)
  • BOY near The World Group Savings and Investment Plan
  • BOY ind #2857

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 Arts, Entertainment & Recreation retirement plans → · Plans in Washington →

The Seattle Mariners 401(k) Plan in the asset neighbourhood

The Seattle Mariners 401(k) PlanThe Seattle Mariners 401(k) …$47MThe World Group Savings and Investment PlanThe World Group Savings and …$47MDeaconess Womens Hospital of Southern Indiana LLC 401(k) PlanDeaconess Womens Hospital of…$47MExtraco Corporation Retirement PlanExtraco Corporation Retireme…$47MMcgohan Brabender 401(k) Profit Sharing PlanMcgohan Brabender 401(k) Pro…$47M
End-of-year total assets ($M) among The Seattle Mariners 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Washington filing particulars

Total Assets (Beginning of Year)$54M
Net Assets (End of Year)$47M
Net Income-$7M
Employer EIN911545344
Plan Effective Date1994-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (The Baseball Club of Seattle, Lllp)

Sponsor-wide plan assets over time

All The Baseball Club of Seattle, Lllp plans reported in each filing year

Latest sponsor-wide plan assets
$120M 4.214444885863325% vs 2022
2024 filing year
$110M$115M$120M$125M$130M$135M 202220232024 $115M $120M ▲ +4.2%
Year Plans Participants Total Assets
2022 2 530 $115M
2023 2 578 $129M
2024 2 587 $120M

Nearby 401(k) Plans in Washington

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

The Seattle Mariners 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. -500000050000010000001500000 -20020406080 Total assets ($B) Participants The Seattle Mariners 401(k) Plan, Total assets ($B): 0.046598572 · Participants: 411The Seattle Mariners 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
The Seattle Mariners 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare The Seattle Mariners 401(k) Plan side-by-side with 3 peers →

The Seattle Mariners 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Washington, the nearest 401(k) by assets is The World Group Savings and Investment Plan in OH ($47M); by covered participants it is Wb Holdings, Inc. 401(k) Plan in WI (411 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (411 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 The Seattle Mariners 401(k) Plan assets move in 2022? ▼
The Seattle Mariners 401(k) Plan pulled back noticeably - down 13.0% during 2022, from $54M to $47M. Reported net income was -$7M.
How have The Baseball Club of Seattle, Lllp plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), The Baseball Club of Seattle, Lllp's sponsor-wide assets grew 4.2%, from $115M to $120M.
Where does The Seattle Mariners 401(k) Plan rank by assets among Form 5500 filers? ▼
The Seattle Mariners 401(k) Plan ranks in the 87th 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 The Seattle Mariners 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is The World Group Savings and Investment Plan in OH ($47M, 821 participants).
Which 401(k) plans cover a similar participant headcount to The Seattle Mariners 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Wb Holdings, Inc. 401(k) Plan in WI (411 participants, $29M 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 911545344.

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.