401(k) · DOL Form 5500 · 2024

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan

Data updated 2026-08-25

$1M
Total assets Small plan by assets
7
Participants Small participant base
25th
Percentile by assets National rank
$176,459
Avg per participant Above avg balance/head
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Official DOL plan name: Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan · Sponsored by Mullen, Plummer and Castiglioni, a Professional Corporation · California · Professional & Technical Services

$1M in assets, 7 participants

Mullen, Plummer and Castiglioni, a Professional Corporation's Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan reported $1M in total assets and 7 participants in its 2024 DOL Form 5500 filing, ranking in the 25th 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.

  • #4,050 in Professional & Technical Services (20,173 peers)

Mullen, Plummer and Castiglioni, a Professional Corporation multi-year trail

Mullen, Plummer and Castiglioni, a Professional Corporation's plans moved -65.2% in assets from 2022 to 2024; this filing shows Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan at $1M / 7 participants.

#4,050
in Professional & Technical Services (20,173 peers)
+21.6%
assets growth YoY

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan among the smaller filed plans by assets

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$1,235,215 25th percentile higher than 25% of 123,620 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 2024

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan among micro filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan is a micro filing (7 participants), the leftmost band.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan reported net income rose from -$3M in the plan year 2023 filing to $220K in the plan year 2024 filing.
  • Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan end-of-year assets rose from $1M in the plan year 2023 filing to $1M in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 330078188 · Mullen, Plummer and Castiglioni, a Professional Corporation PY 2024 · 401(k)

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan · $1M · 7 · 25th

  • PHOTO $1M
  • IND 7
  • EOY 25th
  • 5500 401(k)
  • ASSETS near S B V Pharmacy Corp 401(k) Profit Sharing Plan & Trust
  • PCT ind #4050

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 California →

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan in the asset neighbourhood

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) PlanMullen, Plummer and Castigli…$1MS B V Pharmacy Corp 401(k) Profit Sharing Plan & TrustS B V Pharmacy Corp 401(k) P…$1MDavis Legacy, Inc. 401(k) Profit Sharing PlanDavis Legacy, Inc. 401(k) Pr…$1MThe Hamilton-Ryker Group, Inc. 401(k) PlanThe Hamilton-Ryker Group, In…$1MAmbiente H2o Inc. 401(k) Profit Sharing PlanAmbiente H2o Inc. 401(k) Pro…$1M
End-of-year total assets ($M) among Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Mullen, Plummer and Castiglioni, a Professional Corporation multi-year asset trail

Sponsor-wide plan assets over time

All Mullen, Plummer and Castiglioni, a Professional Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$1M 65.1757136255978% vs 2022
2024 filing year
$0M$1M$2M$3M$4M 202220232024 $3.55M $1.24M ▼ -65.1%
Year Plans Participants Total Assets
2022 1 7 $4M
2023 1 7 $1M
2024 1 7 $1M

Mullen, Plummer and Castiglioni, a Professional Corporation filing trail (2024)

Total Assets (Beginning of Year)$1M
Net Assets (End of Year)$1M
Net Income$220K
Employer EIN330078188
Plan Effective Date1992-01-30
Filing StatusFILING RECEIVED

Nearby 401(k) Plans in California

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

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -200204060 Total assets ($B) Participants Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan, Total assets ($B): 0.001235215 · Participants: 7Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 48.738057415 · Participants: 116712Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 31.02646504 · Participants: 58962Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 24.850880304 · Participants: 55298Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 24.714519387 · Participants: 101450Apple 401(k) PlanCisco Systems,Inc. 401(k) Plan, Total assets ($B): 22.728425546 · Participants: 40452Cisco Systems,Inc. 401(k) Plan
Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is S B V Pharmacy Corp 401(k) Profit Sharing Plan & Trust in NY ($1M); by covered participants it is Cz14, Inc. 401(k) Plan in DE (7 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (7 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan assets move in 2024?
Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan grew sharply - up 21.6% during 2024, from $1M to $1M. Reported net income was $220K.
How have Mullen, Plummer and Castiglioni, a Professional Corporation plan assets changed over time?
Across 3 plan years on file (2022-2024), Mullen, Plummer and Castiglioni, a Professional Corporation's sponsor-wide assets declined 65.2%, from $4M to $1M.
Where does Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan rank by assets among Form 5500 filers?
Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan ranks in the 25th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the lower half of filed plans by assets).
Which 401(k) plans are similar in size to Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan?
Among 401(k) plans in other states, the closest by assets is S B V Pharmacy Corp 401(k) Profit Sharing Plan & Trust in NY ($1M, 10 participants).
Which 401(k) plans cover a similar participant headcount to Mullen, Plummer and Castiglioni, a Professional Corporation 401(k) Plan?
Among 401(k) plans in other states, the closest by covered participants is Cz14, Inc. 401(k) Plan in DE (7 participants, $380K in assets).