401(k) · DOL Form 5500 · 2022

Kiniksa Pharmaceuticals Corp. 401(k) Plan

Data updated 2026-08-25

$19M
Total assets Small plan by assets
209
Participants Below avg headcount
76th
Percentile by assets National rank
$89,384
Avg per participant Below avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Kiniksa Pharmaceuticals 401(k) Plan · Sponsored by Kiniksa Pharmaceuticals Corp. · Massachusetts · Professional & Technical Services

$19M in assets, 209 participants

Kiniksa Pharmaceuticals Corp.'s Kiniksa Pharmaceuticals 401(k) Plan reported $19M in total assets and 209 participants in its 2022 DOL Form 5500 filing, ranking in the 76th 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.

  • #16,467 in Professional & Technical Services (21,562 peers)

Coverage in Massachusetts

Kiniksa Pharmaceuticals 401(k) Plan covers 209 participants in Massachusetts, about 32% of the average Massachusetts filer (state average ~659 per filing). Assets: $19M.

#16,467
in Professional & Technical Services (21,562 peers)
+8.6%
assets growth YoY
0.2×
vs typical plan assets (national mean)

Kiniksa Pharmaceuticals 401(k) Plan's outsized position by total assets

Kiniksa Pharmaceuticals 401(k) Plan vs every filed plan by assets

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

$18,681,351 Top 24% higher than 76% 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

Kiniksa Pharmaceuticals 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. Kiniksa Pharmaceuticals 401(k) Plan sits mid-pack in the medium band (209 participants).

DOL schedule card

Filing strip 474596717 · Kiniksa Pharmaceuticals Corp. PY 2022 · 401(k)

Kiniksa Pharmaceuticals 401(k) Plan · $19M · 209 · 76th

  • IND $19M
  • IND 209
  • IND 76th
  • IND 401(k)
  • IND near Lexington Home Brands Savings and Retirement Plan
  • IND ind #16467

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 Massachusetts →

Kiniksa Pharmaceuticals 401(k) Plan in the asset neighbourhood

Kiniksa Pharmaceuticals 401(k) PlanKiniksa Pharmaceuticals 401(…$19MLexington Home Brands Savings and Retirement PlanLexington Home Brands Saving…$19MFederal Protection, Inc. 401(k) Profit Sharing PlanFederal Protection, Inc. 401…$19MEms-Chemie (North America) Inc. Retirement PlanEms-Chemie (North America) I…$19MGreater Philadelphia Health Action, Inc. 401(k) PlanGreater Philadelphia Health …$19M
End-of-year total assets ($M) among Kiniksa Pharmaceuticals 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Massachusetts filing particulars

Total Assets (Beginning of Year)$17M
Net Assets (End of Year)$19M
Net Income$1M
Employer EIN474596717
Plan Effective Date2016-02-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Kiniksa Pharmaceuticals Corp.)

Sponsor-wide plan assets over time

All Kiniksa Pharmaceuticals Corp. plans reported in each filing year

Latest sponsor-wide plan assets
$37M 98.96231273637544% vs 2022
2024 filing year
$10M$20M$30M$40M 202220232024 $18.7M $37.2M ▲ +99.0%
Year Plans Participants Total Assets
2022 1 209 $19M
2023 1 220 $28M
2024 1 286 $37M

Nearby 401(k) Plans in Massachusetts

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

Kiniksa Pharmaceuticals 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Kiniksa Pharmaceuticals 401(k) Plan, Total assets ($B): 0.018681351 · Participants: 209Kiniksa Pharmaceuticals 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 22.953563448 · Participants: 52036Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 8.79802945 · Participants: 32843Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 5.810585521 · Participants: 13690Massachusetts Institute of Technology Supplemental 401(k) PlanPhilips North America 401(k) Plan, Total assets ($B): 5.180251859 · Participants: 19750Philips North America 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 4.853752256 · Participants: 18359Boston Scientific Corporation 401(k) Retirement Savings Plan
Kiniksa Pharmaceuticals 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Kiniksa Pharmaceuticals 401(k) Plan side-by-side with 3 peers →

Kiniksa Pharmaceuticals 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Lexington Home Brands Savings and Retirement Plan in NC ($19M); by covered participants it is Com Av,LLC 401(k) Profit Sharing Plan in CA (209 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (209 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 Kiniksa Pharmaceuticals 401(k) Plan assets move in 2022? ▼
Kiniksa Pharmaceuticals 401(k) Plan grew at a solid clip - up 8.6% during 2022, from $17M to $19M. Reported net income was $1M.
How have Kiniksa Pharmaceuticals Corp. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Kiniksa Pharmaceuticals Corp.'s sponsor-wide assets grew 99.0%, from $19M to $37M.
Where does Kiniksa Pharmaceuticals 401(k) Plan rank by assets among Form 5500 filers? ▼
Kiniksa Pharmaceuticals 401(k) Plan ranks in the 76th 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 Kiniksa Pharmaceuticals 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Lexington Home Brands Savings and Retirement Plan in NC ($19M, 374 participants).
Which 401(k) plans cover a similar participant headcount to Kiniksa Pharmaceuticals 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Com Av,LLC 401(k) Profit Sharing Plan in CA (209 participants, N/A 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 474596717.

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.