W. B. Mason Co.
Plan context: W. B. Mason Co. Retirement 401K Plan & Trust
EIN 04-2455641 • Brockton, MA • 61 filings • 16 plans
Current Snapshot
Latest Year
2024
2024 Participants
2,781
2024 Assets
$204,913,404
2024 Contributions
$15,417,495
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 2 | 2,781 | $204,913,404 | $15,417,495 | $5,544iApproximate average salary by contribution assumption: employee only about $138,597 at 4% or $92,398 at 6%; with 50% employer match about $92,398 at 4% or $61,599 at 6%; with 100% employer match about $69,298 at 4% or $46,199 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,781 | $204,913,404 | $15,417,495 | $5,544iApproximate average salary by contribution assumption: employee only about $138,597 at 4% or $92,398 at 6%; with 50% employer match about $92,398 at 4% or $61,599 at 6%; with 100% employer match about $69,298 at 4% or $46,199 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 2,604 | - | - | - |
| 2023 | 2 | 2,529 | $183,687,726 | $15,809,078 | $6,251iApproximate average salary by contribution assumption: employee only about $156,278 at 4% or $104,185 at 6%; with 50% employer match about $104,185 at 4% or $69,457 at 6%; with 100% employer match about $78,139 at 4% or $52,093 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,462 | $183,687,726 | $15,809,078 | $6,421iApproximate average salary by contribution assumption: employee only about $160,531 at 4% or $107,021 at 6%; with 50% employer match about $107,021 at 4% or $71,347 at 6%; with 100% employer match about $80,265 at 4% or $53,510 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 2,529 | - | - | - |
| 2022 | 2 | 2,503 | $156,310,425 | $14,722,534 | $5,882iApproximate average salary by contribution assumption: employee only about $147,049 at 4% or $98,033 at 6%; with 50% employer match about $98,033 at 4% or $65,355 at 6%; with 100% employer match about $73,524 at 4% or $49,016 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,503 | $156,310,425 | $14,722,534 | $5,882iApproximate average salary by contribution assumption: employee only about $147,049 at 4% or $98,033 at 6%; with 50% employer match about $98,033 at 4% or $65,355 at 6%; with 100% employer match about $73,524 at 4% or $49,016 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 2,432 | - | - | - |
| 2021 | 2 | 2,820 | $190,103,278 | $13,524,853 | $4,796iApproximate average salary by contribution assumption: employee only about $119,901 at 4% or $79,934 at 6%; with 50% employer match about $79,934 at 4% or $53,289 at 6%; with 100% employer match about $59,951 at 4% or $39,967 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,820 | $190,103,278 | $13,524,853 | $4,796iApproximate average salary by contribution assumption: employee only about $119,901 at 4% or $79,934 at 6%; with 50% employer match about $79,934 at 4% or $53,289 at 6%; with 100% employer match about $59,951 at 4% or $39,967 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 2,490 | - | - | - |
| 2020 | 2 | 3,048 | $168,016,405 | $11,788,279 | $3,868iApproximate average salary by contribution assumption: employee only about $96,689 at 4% or $64,459 at 6%; with 50% employer match about $64,459 at 4% or $42,973 at 6%; with 100% employer match about $48,344 at 4% or $32,230 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,048 | $168,016,405 | $11,788,279 | $3,868iApproximate average salary by contribution assumption: employee only about $96,689 at 4% or $64,459 at 6%; with 50% employer match about $64,459 at 4% or $42,973 at 6%; with 100% employer match about $48,344 at 4% or $32,230 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 2,862 | - | - | - |
| 2019 | 2 | 3,776 | $155,935,836 | $15,731,298 | $4,166iApproximate average salary by contribution assumption: employee only about $104,153 at 4% or $69,435 at 6%; with 50% employer match about $69,435 at 4% or $46,290 at 6%; with 100% employer match about $52,077 at 4% or $34,718 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,776 | $155,935,836 | $15,731,298 | $4,166iApproximate average salary by contribution assumption: employee only about $104,153 at 4% or $69,435 at 6%; with 50% employer match about $69,435 at 4% or $46,290 at 6%; with 100% employer match about $52,077 at 4% or $34,718 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 3,556 | - | - | - |
| 2018 | 2 | 3,667 | $125,960,865 | $18,782,289 | $5,122iApproximate average salary by contribution assumption: employee only about $128,049 at 4% or $85,366 at 6%; with 50% employer match about $85,366 at 4% or $56,911 at 6%; with 100% employer match about $64,025 at 4% or $42,683 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,568 | $125,960,865 | $18,782,289 | $5,264iApproximate average salary by contribution assumption: employee only about $131,602 at 4% or $87,735 at 6%; with 50% employer match about $87,735 at 4% or $58,490 at 6%; with 100% employer match about $65,801 at 4% or $43,867 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 3,667 | - | - | - |
| 2017 | 2 | 3,799 | $126,633,016 | $18,407,450 | $4,845iApproximate average salary by contribution assumption: employee only about $121,134 at 4% or $80,756 at 6%; with 50% employer match about $80,756 at 4% or $53,837 at 6%; with 100% employer match about $60,567 at 4% or $40,378 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,799 | $126,633,016 | $18,407,450 | $4,845iApproximate average salary by contribution assumption: employee only about $121,134 at 4% or $80,756 at 6%; with 50% employer match about $80,756 at 4% or $53,837 at 6%; with 100% employer match about $60,567 at 4% or $40,378 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 3,667 | - | - | - |
| 2016 | 2 | 3,994 | $98,806,864 | $16,319,083 | $4,086iApproximate average salary by contribution assumption: employee only about $102,147 at 4% or $68,098 at 6%; with 50% employer match about $68,098 at 4% or $45,399 at 6%; with 100% employer match about $51,074 at 4% or $34,049 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,994 | $98,806,864 | $16,319,083 | $4,086iApproximate average salary by contribution assumption: employee only about $102,147 at 4% or $68,098 at 6%; with 50% employer match about $68,098 at 4% or $45,399 at 6%; with 100% employer match about $51,074 at 4% or $34,049 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 3,784 | - | - | - |
| 2015 | 2 | 3,556 | $80,975,478 | $13,996,050 | $3,936iApproximate average salary by contribution assumption: employee only about $98,397 at 4% or $65,598 at 6%; with 50% employer match about $65,598 at 4% or $43,732 at 6%; with 100% employer match about $49,199 at 4% or $32,799 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,556 | $80,975,478 | $13,996,050 | $3,936iApproximate average salary by contribution assumption: employee only about $98,397 at 4% or $65,598 at 6%; with 50% employer match about $65,598 at 4% or $43,732 at 6%; with 100% employer match about $49,199 at 4% or $32,799 at 6%. |
| W. B. Mason Company Inc. Benefit Plan | - | 3,350 | - | - | - |
| 2014 | 5 | 3,023 | $70,975,425 | $8,936,810 | $2,956iApproximate average salary by contribution assumption: employee only about $73,907 at 4% or $49,271 at 6%; with 50% employer match about $49,271 at 4% or $32,847 at 6%; with 100% employer match about $36,953 at 4% or $24,636 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 3,023 | $70,975,425 | $8,936,810 | $2,956iApproximate average salary by contribution assumption: employee only about $73,907 at 4% or $49,271 at 6%; with 50% employer match about $49,271 at 4% or $32,847 at 6%; with 100% employer match about $36,953 at 4% or $24,636 at 6%. |
| W. B Mason Company Inc. Flexible Spending Account | - | 111 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 0 | - | - | - |
| W. B. Mason Company Inc. Medical Expense Plan | - | 0 | - | - | - |
| W. B Mason Company Inc. Flexible Spending Account | - | 0 | - | - | - |
| 2013 | 4 | 2,560 | $64,174,085 | $7,352,768 | $2,872iApproximate average salary by contribution assumption: employee only about $71,804 at 4% or $47,870 at 6%; with 50% employer match about $47,870 at 4% or $31,913 at 6%; with 100% employer match about $35,902 at 4% or $23,935 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,471 | $64,174,085 | $7,352,768 | $2,976iApproximate average salary by contribution assumption: employee only about $74,391 at 4% or $49,594 at 6%; with 50% employer match about $49,594 at 4% or $33,062 at 6%; with 100% employer match about $37,195 at 4% or $24,797 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 2,004 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 2,560 | - | - | - |
| W. B Mason Company Inc. Flexible Spending Account | - | 211 | - | - | - |
| 2012 | 4 | 2,772 | $49,012,113 | $7,352,253 | $2,652iApproximate average salary by contribution assumption: employee only about $66,308 at 4% or $44,205 at 6%; with 50% employer match about $44,205 at 4% or $29,470 at 6%; with 100% employer match about $33,154 at 4% or $22,103 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,772 | $49,012,113 | $7,352,253 | $2,652iApproximate average salary by contribution assumption: employee only about $66,308 at 4% or $44,205 at 6%; with 50% employer match about $44,205 at 4% or $29,470 at 6%; with 100% employer match about $33,154 at 4% or $22,103 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,852 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,844 | - | - | - |
| W. B Mason Company Inc. Flexible Spending Account | - | 211 | - | - | - |
| 2011 | 4 | 2,433 | $38,630,830 | $6,097,763 | $2,506iApproximate average salary by contribution assumption: employee only about $62,657 at 4% or $41,771 at 6%; with 50% employer match about $41,771 at 4% or $27,847 at 6%; with 100% employer match about $31,328 at 4% or $20,886 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,433 | $38,630,830 | $6,097,763 | $2,506iApproximate average salary by contribution assumption: employee only about $62,657 at 4% or $41,771 at 6%; with 50% employer match about $41,771 at 4% or $27,847 at 6%; with 100% employer match about $31,328 at 4% or $20,886 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,892 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,849 | - | - | - |
| W. B Mason Company Inc. Flexible Spending Account | - | 193 | - | - | - |
| 2010 | 3 | 2,114 | $35,380,868 | $1,724,074 | $816iApproximate average salary by contribution assumption: employee only about $20,389 at 4% or $13,593 at 6%; with 50% employer match about $13,593 at 4% or $9,062 at 6%; with 100% employer match about $10,194 at 4% or $6,796 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,114 | $35,380,868 | $1,724,074 | $816iApproximate average salary by contribution assumption: employee only about $20,389 at 4% or $13,593 at 6%; with 50% employer match about $13,593 at 4% or $9,062 at 6%; with 100% employer match about $10,194 at 4% or $6,796 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,669 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,640 | - | - | - |
| 2009 | 3 | 2,012 | $29,350,376 | $4,566,512 | $2,270iApproximate average salary by contribution assumption: employee only about $56,741 at 4% or $37,827 at 6%; with 50% employer match about $37,827 at 4% or $25,218 at 6%; with 100% employer match about $28,370 at 4% or $18,914 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 2,012 | $29,350,376 | $4,566,512 | $2,270iApproximate average salary by contribution assumption: employee only about $56,741 at 4% or $37,827 at 6%; with 50% employer match about $37,827 at 4% or $25,218 at 6%; with 100% employer match about $28,370 at 4% or $18,914 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,516 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,453 | - | - | - |
| 2008 | 3 | 1,584 | $26,304,166 | $4,225,094 | $2,667iApproximate average salary by contribution assumption: employee only about $66,684 at 4% or $44,456 at 6%; with 50% employer match about $44,456 at 4% or $29,637 at 6%; with 100% employer match about $33,342 at 4% or $22,228 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 1,584 | $26,304,166 | $4,225,094 | $2,667iApproximate average salary by contribution assumption: employee only about $66,684 at 4% or $44,456 at 6%; with 50% employer match about $44,456 at 4% or $29,637 at 6%; with 100% employer match about $33,342 at 4% or $22,228 at 6%. |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,364 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,297 | - | - | - |
| 2007 | 3 | 1,779 | $0 | $0 | - |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,464 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,399 | - | - | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 1,779 | - | - | - |
| 2006 | 3 | 1,631 | $0 | $0 | - |
| W. B. Mason Company Inc. Medical Expense Plan | - | 1,284 | - | - | - |
| W.B. Mason Company Inc. Life Insurance Plan | - | 1,302 | - | - | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 1,631 | - | - | - |
| 2005 | 1 | 1,349 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 1,349 | - | - | - |
| 2004 | 1 | 1,074 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 1,074 | - | - | - |
| 2003 | 1 | 901 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 901 | - | - | - |
| 2002 | 1 | 314 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 314 | - | - | - |
| 2001 | 1 | 545 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 545 | - | - | - |
| 2000 | 1 | 483 | $0 | $0 | - |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 483 | - | - | - |
| 1999 | 3 | 438 | $9,446,424 | $1,377,179 | $3,144iApproximate average salary by contribution assumption: employee only about $78,606 at 4% or $52,404 at 6%; with 50% employer match about $52,404 at 4% or $34,936 at 6%; with 100% employer match about $39,303 at 4% or $26,202 at 6%. |
| W. B. Mason Co. Retirement 401K Plan & Trust | - | 438 | $9,446,424 | $1,377,179 | $3,144iApproximate average salary by contribution assumption: employee only about $78,606 at 4% or $52,404 at 6%; with 50% employer match about $52,404 at 4% or $34,936 at 6%; with 100% employer match about $39,303 at 4% or $26,202 at 6%. |
| W.B. Mason Company Inc. Life Insurance Plan | - | 403 | - | - | - |
| W. B. Mason Company Inc. Medical Expense Plan | - | 403 | - | - | - |