401(k) · DOL Form 5500 · 2023

Tandem Diabetes Care, Inc. 401(k) Plan

Data updated 2026-08-25

$102M
Total assets Near avg plan size
2,499
Participants Above avg headcount
91st
Percentile by assets National rank
$40,707
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Tandem Diabetes Care, Inc. 401(k) Plan · Sponsored by Tandem Diabetes Care, Inc. · California · Manufacturing

$102M in assets, 2,499 participants

Tandem Diabetes Care, Inc.'s Tandem Diabetes Care, Inc. 401(k) Plan reported $102M in total assets and 2,499 participants in its 2023 DOL Form 5500 filing, ranking in the 91st 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.

  • #16,289 in Manufacturing (18,722 peers)

Coverage in California

Tandem Diabetes Care, Inc. 401(k) Plan covers 2,499 participants in California, 4.0x the typical California plan (state average ~630 per filing). Assets: $102M.

#16,289
in Manufacturing (18,722 peers)
+49.2%
assets growth YoY
1.0×
vs typical plan assets (national mean)

Tandem Diabetes Care, Inc. 401(k) Plan's outsized position by total assets

Tandem Diabetes Care, Inc. 401(k) Plan vs every filed plan by assets

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

$101,725,982 Top 9% higher than 91% 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

Tandem Diabetes Care, Inc. 401(k) Plan'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. Tandem Diabetes Care, Inc. 401(k) Plan lands in the large band (2,499 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Tandem Diabetes Care, Inc. 401(k) Plan reported net income rose from $9M in the plan year 2022 filing to $34M in the plan year 2023 filing.
  • Tandem Diabetes Care, Inc. 401(k) Plan end-of-year assets rose from $68M in the plan year 2022 filing to $102M in the plan year 2023 filing.
  • Tandem Diabetes Care, Inc. 401(k) Plan reported participants rose from 1,922 in the plan year 2022 filing to 2,499 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 204327508 · Tandem Diabetes Care, Inc. PY 2023 · 401(k)

Tandem Diabetes Care, Inc. 401(k) Plan · $102M · 2,499 · 91st

  • VS-ST $102M
  • VS-ST 2,499
  • VS-ST 91st
  • VS-ST 401(k)
  • VS-ST near Unifi Aviation 401(k) Retirement Plan
  • VS-ST ind #16289

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 →

Tandem Diabetes Care, Inc. 401(k) Plan in the asset neighbourhood

Savings Plan of the Newtron Group, L.L.C. and SubsidiariesSavings Plan of the Newtron …$102MTandem Diabetes Care, Inc. 401(k) PlanTandem Diabetes Care, Inc. 4…$102MUnifi Aviation 401(k) Retirement PlanUnifi Aviation 401(k) Retire…$102MCabell Huntington Hospital, Inc. Non-Bargaining 401(k) Retirement PlanCabell Huntington Hospital, …$102MHeritage Financial Corporation 401(k) Profit Sharing Plan and TrustHeritage Financial Corporati…$102M
End-of-year total assets ($M) among Tandem Diabetes Care, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

California filing particulars

Total Assets (Beginning of Year)$68M
Net Assets (End of Year)$102M
Net Income$34M
Employer EIN204327508
Plan Effective Date2009-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Tandem Diabetes Care, Inc.)

Sponsor-wide plan assets over time

All Tandem Diabetes Care, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$136M 99.55763577497407% vs 2022
2024 filing year
$50M$100M$150M 202220232024 $68.2M $136M ▲ +99.5%
Year Plans Participants Total Assets
2022 1 1,922 $68M
2023 1 2,499 $102M
2024 1 2,325 $136M

Nearby 401(k) Plans in California

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

Tandem Diabetes Care, Inc. 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Tandem Diabetes Care, Inc. 401(k) Plan, Total assets ($B): 0.101725982 · Participants: 2499Tandem Diabetes Care, Inc. 401(k) PlanWells 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
Tandem Diabetes Care, Inc. 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Tandem Diabetes Care, Inc. 401(k) Plan side-by-side with 3 peers →

Tandem Diabetes Care, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Unifi Aviation 401(k) Retirement Plan in GA ($102M); by covered participants it is Audiology Benefits 401(k) Plan I in NJ (2,499 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (2,499 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 Tandem Diabetes Care, Inc. 401(k) Plan assets move in 2023? ▼
Tandem Diabetes Care, Inc. 401(k) Plan surged - up 49.2% during 2023, from $68M to $102M. Reported net income was $34M.
How have Tandem Diabetes Care, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Tandem Diabetes Care, Inc.'s sponsor-wide assets grew 99.6%, from $68M to $136M.
Where does Tandem Diabetes Care, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Tandem Diabetes Care, Inc. 401(k) Plan ranks in the 91st 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 Tandem Diabetes Care, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Unifi Aviation 401(k) Retirement Plan in GA ($102M, 25,217 participants).
Which 401(k) plans cover a similar participant headcount to Tandem Diabetes Care, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Audiology Benefits 401(k) Plan I in NJ (2,499 participants, $174M 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 204327508.

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.