401(k) · DOL Form 5500 · 2022

Brookline Bancorp, Inc. 401(k) Plan

Data updated 2026-08-25

$111M
Total assets Near avg plan size
806
Participants Near avg headcount
93rd
Percentile by assets National rank
$137,927
Avg per participant Near avg balance/head
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Official DOL plan name: Brookline Bancorp 401(k) Plan · Sponsored by Brookline Bancorp, Inc. · Massachusetts · Finance & Insurance

$111M in assets, 806 participants

Brookline Bancorp, Inc.'s Brookline Bancorp 401(k) Plan reported $111M in total assets and 806 participants in its 2022 DOL Form 5500 filing, ranking in the 93rd 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.

  • #8,264 in Finance & Insurance (9,261 peers)

Where Brookline Bancorp 401(k) Plan sits by assets

Brookline Bancorp 401(k) Plan sits in the top 10% of all filed plans by assets, $111M for 806 participants (~$137,927/participant), down 13.9% in 2022.

#8,264
in Finance & Insurance (9,261 peers)
-13.9%
assets change YoY
1.1×
vs typical plan assets (national mean)

The plan reported a net loss of $18M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Brookline Bancorp 401(k) Plan's outsized position by total assets

Brookline Bancorp 401(k) Plan vs every filed plan by assets

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

$111,169,281 Top 7% higher than 93% 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

Brookline Bancorp 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. Brookline Bancorp 401(k) Plan sits mid-pack in the medium band (806 participants).

Plan-year Form 5500 strip

Filing strip 043402944 · Brookline Bancorp, Inc. PY 2022 · 401(k)

Brookline Bancorp 401(k) Plan · $111M · 806 · 93rd

  • EOY $111M
  • EOY 806
  • EOY 93rd
  • EOY 401(k)
  • EOY near Medamerica Health Systems Corporation 401(k) Savings and Investment Plan
  • EOY ind #8264

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 Finance & Insurance retirement plans → · Plans in Massachusetts →

Brookline Bancorp 401(k) Plan in the asset neighbourhood

Heritage Medical Associates, P.C. 401(k) Profit Sharing PlanHeritage Medical Associates,…$111MBrookline Bancorp 401(k) Plan$111MMedamerica Health Systems Corporation 401(k) Savings and Investment PlanMedamerica Health Systems Co…$111MWoodmenlife 401(k) Plan$111MThe Real Chemistry 401(k) Savings PlanThe Real Chemistry 401(k) Sa…$111M
End-of-year total assets ($M) among Brookline Bancorp 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)$129M
Net Assets (End of Year)$111M
Net Income-$18M
Employer EIN043402944
Plan Effective Date1996-05-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Brookline Bancorp, Inc.)

Sponsor-wide plan assets over time

All Brookline Bancorp, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$176M 45.957666231472146% vs 2022
2024 filing year
$100M$120M$140M$160M$180M$200M 202220232024 $121M $176M ▲ +46.0%
Year Plans Participants Total Assets
2022 2 1,499 $121M
2023 2 1,555 $153M
2024 2 1,040 $176M

Nearby 401(k) Plans in Massachusetts

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

Brookline Bancorp 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Brookline Bancorp 401(k) Plan, Total assets ($B): 0.111169281 · Participants: 806Brookline Bancorp 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
Brookline Bancorp 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Brookline Bancorp 401(k) Plan side-by-side with 3 peers →

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

Outside Massachusetts, the nearest 401(k) by assets is Medamerica Health Systems Corporation 401(k) Savings and Investment Plan in OH ($111M); by covered participants it is Popular, Inc. USA 401(k) Savings & Investment Plan in PR (806 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (806 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 Brookline Bancorp 401(k) Plan assets move in 2022? ▼
Brookline Bancorp 401(k) Plan pulled back noticeably - down 13.9% during 2022, from $129M to $111M. Reported net income was -$18M.
How have Brookline Bancorp, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Brookline Bancorp, Inc.'s sponsor-wide assets grew 46.0%, from $121M to $176M.
Where does Brookline Bancorp 401(k) Plan rank by assets among Form 5500 filers? ▼
Brookline Bancorp 401(k) Plan ranks in the 93rd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Brookline Bancorp 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Medamerica Health Systems Corporation 401(k) Savings and Investment Plan in OH ($111M, 1,773 participants).
Which 401(k) plans cover a similar participant headcount to Brookline Bancorp 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Popular, Inc. USA 401(k) Savings & Investment Plan in PR (806 participants, $127M 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 043402944.

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.