Civic Intelligence

MASSACHUSETTS INSTUTUTE OF TECHNOLOGY

Plan context: Mit Supplemental 401K Plan

EIN 04-2103594 • Cambridge, MA • 287 filings • 49 plans

View Related Profile

77 Massachusetts AvenueNe49-3142Cambridge, MA 02139
Current Snapshot

Latest Year

2024

2024 Participants

15,125

2024 Assets

$14,764,628,904

2024 Contributions

$316,066,515

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$14,764,628,904$7,382,314,452$0199920122024YearValue
$14,764,628,904Latest year 2024

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

18,2549,1270199920122024YearValue
15,125Latest year 2024

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 / FilingFilingsParticipantsAssetsContributionsContrib./Participant
2024715,125$14,764,628,904$316,066,515$20,897iApproximate average salary by contribution assumption: employee only about $522,424 at 4% or $348,283 at 6%; with 50% employer match about $348,283 at 4% or $232,188 at 6%; with 100% employer match about $261,212 at 4% or $174,141 at 6%.
Mit Supplemental 401K Plan-15,125$7,720,373,045$286,135,429$18,918iApproximate average salary by contribution assumption: employee only about $472,951 at 4% or $315,301 at 6%; with 50% employer match about $315,301 at 4% or $210,200 at 6%; with 100% employer match about $236,476 at 4% or $157,650 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-13,100$5,888,715,533--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$1,155,540,326$29,931,086-
Travel Accident Life Insurance Plan for Mit Employees-14,624---
Mit Retiree Dental-2,119---
Health Plan for Employees of Mit-14,616---
Long Term Disability Plan for Staff Members of Mit-14,134---
2023714,762$13,221,753,513$280,230,883$18,983iApproximate average salary by contribution assumption: employee only about $474,581 at 4% or $316,388 at 6%; with 50% employer match about $316,388 at 4% or $210,925 at 6%; with 100% employer match about $237,291 at 4% or $158,194 at 6%.
Mit Supplemental 401K Plan-14,762$6,829,912,863$254,872,739$17,265iApproximate average salary by contribution assumption: employee only about $431,637 at 4% or $287,758 at 6%; with 50% employer match about $287,758 at 4% or $191,838 at 6%; with 100% employer match about $215,818 at 4% or $143,879 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-12,533$5,381,626,447--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$1,010,214,203$25,358,144-
Health Plan for Employees of Mit-14,283---
Mit Retiree Dental-1,989---
Travel Accident Life Insurance Plan for Mit Employees-14,278---
Long Term Disability Plan for Staff Members of Mit-14,224---
2022714,094$12,029,460,920$250,067,435$17,743iApproximate average salary by contribution assumption: employee only about $443,571 at 4% or $295,714 at 6%; with 50% employer match about $295,714 at 4% or $197,143 at 6%; with 100% employer match about $221,785 at 4% or $147,857 at 6%.
Mit Supplemental 401K Plan-14,094$5,810,585,521$226,781,504$16,091iApproximate average salary by contribution assumption: employee only about $402,266 at 4% or $268,177 at 6%; with 50% employer match about $268,177 at 4% or $178,785 at 6%; with 100% employer match about $201,133 at 4% or $134,089 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,888$5,281,152,611--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$937,722,788$23,285,931-
Travel Accident Life Insurance Plan for Mit Employees-13,616---
Health Plan for Employees of Mit-13,629---
Mit Retiree Dental-1,837---
Long Term Disability Plan for Staff Members of Mit-13,683---
2021713,690$14,503,195,718$238,283,230$17,406iApproximate average salary by contribution assumption: employee only about $435,141 at 4% or $290,094 at 6%; with 50% employer match about $290,094 at 4% or $193,396 at 6%; with 100% employer match about $217,571 at 4% or $145,047 at 6%.
Mit Supplemental 401K Plan-13,690$7,063,390,822$218,061,216$15,929iApproximate average salary by contribution assumption: employee only about $398,213 at 4% or $265,475 at 6%; with 50% employer match about $265,475 at 4% or $176,983 at 6%; with 100% employer match about $199,106 at 4% or $132,738 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,835$6,482,701,379--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$957,103,517$20,222,014-
Mit Retiree Dental-1,731---
Health Plan for Employees of Mit-13,271---
Travel Accident Life Insurance Plan for Mit Employees-13,191---
Long Term Disability Plan for Staff Members of Mit-10,615---
2020714,052$13,108,848,289$234,252,920$16,670iApproximate average salary by contribution assumption: employee only about $416,761 at 4% or $277,841 at 6%; with 50% employer match about $277,841 at 4% or $185,227 at 6%; with 100% employer match about $208,380 at 4% or $138,920 at 6%.
Mit Supplemental 401K Plan-14,052$6,299,152,486$213,746,564$15,211iApproximate average salary by contribution assumption: employee only about $380,278 at 4% or $253,519 at 6%; with 50% employer match about $253,519 at 4% or $169,012 at 6%; with 100% employer match about $190,139 at 4% or $126,759 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-12,143$5,697,140,595--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$1,112,555,208$20,506,356-
Mit Retiree Dental-1,616---
Health Plan for Employees of Mit-13,435---
Travel Accident Life Insurance Plan for Mit Employees-13,379---
Long Term Disability Plan for Staff Members of Mit-11,031---
20191118,254$10,448,884,930$220,851,887$12,099iApproximate average salary by contribution assumption: employee only about $302,471 at 4% or $201,647 at 6%; with 50% employer match about $201,647 at 4% or $134,431 at 6%; with 100% employer match about $151,235 at 4% or $100,824 at 6%.
Mit Supplemental 401K Plan-14,068$5,453,417,934$201,990,440$14,358iApproximate average salary by contribution assumption: employee only about $358,954 at 4% or $239,302 at 6%; with 50% employer match about $239,302 at 4% or $159,535 at 6%; with 100% employer match about $179,477 at 4% or $119,651 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,892$4,232,855,913--
Massachusetts Institute of Technology Retiree Welfare Benefit Plan--$762,611,083$18,861,447-
Mit Retiree Dental-1,521---
Travel Accident Life Insurance Plan for Mit Employees-13,377---
Health Plan for Employees of Mit-10,958---
Long Term Disability Plan for Staff Members of Mit-11,024---
Massachusetts Institute of Technology Group Life Insurance Plan-18,254---
Flexible Reimbursement Account Plan Medical, Dental-2,723---
Mit Dental-11,370---
Mit Vision Care Plan-6,635---
20181018,192$8,298,737,654$188,205,963$10,346iApproximate average salary by contribution assumption: employee only about $258,638 at 4% or $172,426 at 6%; with 50% employer match about $172,426 at 4% or $114,950 at 6%; with 100% employer match about $129,319 at 4% or $86,213 at 6%.
Mit Supplemental 401K Plan-13,802$4,496,259,893$188,205,963$13,636iApproximate average salary by contribution assumption: employee only about $340,903 at 4% or $227,269 at 6%; with 50% employer match about $227,269 at 4% or $151,513 at 6%; with 100% employer match about $170,452 at 4% or $113,634 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,642$3,802,477,761--
Mit Retiree Dental-1,382---
Flexible Reimbursement Account Plan Medical, Dental-2,682---
Health Plan for Employees of Mit-10,803---
Mit Dental-11,199---
Travel Accident Life Insurance Plan for Mit Employees-13,160---
Mit Vision Care Plan-6,268---
Massachusetts Institute of Technology Group Life Insurance Plan-18,192---
Long Term Disability Plan for Staff Members of Mit-10,695---
20171317,532$8,742,366,285$183,172,732$10,448iApproximate average salary by contribution assumption: employee only about $261,198 at 4% or $174,132 at 6%; with 50% employer match about $174,132 at 4% or $116,088 at 6%; with 100% employer match about $130,599 at 4% or $87,066 at 6%.
Mit Supplemental 401K Plan-13,476$4,771,626,590$183,172,732$13,593iApproximate average salary by contribution assumption: employee only about $339,813 at 4% or $226,542 at 6%; with 50% employer match about $226,542 at 4% or $151,028 at 6%; with 100% employer match about $169,906 at 4% or $113,271 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,633$3,970,739,695--
Mit Retiree Dental-1,276---
Mit Dental-10,944---
Mit Vision Care Plan-5,913---
Flexible Reimbursement Account Plan Medical, Dental-2,804---
Health Plan for Employees of Mit-10,944---
Travel Accident Life Insurance Plan for Mit Employees-12,884---
Long Term Disability Plan for Staff Members of Mit-10,717---
Massachusetts Institute of Technology Group Life Insurance Plan-17,532---
Mit Long Term Care-886---
Extended Illness Plan for Support Staff of Mit-1,366---
Extended Illness Plan for Service Staff of Mit-1,167---
20161317,304$7,513,910,323$259,974,183$15,024iApproximate average salary by contribution assumption: employee only about $375,598 at 4% or $250,399 at 6%; with 50% employer match about $250,399 at 4% or $166,933 at 6%; with 100% employer match about $187,799 at 4% or $125,199 at 6%.
Mit Supplemental 401K Plan-13,383$4,087,476,899$176,974,183$13,224iApproximate average salary by contribution assumption: employee only about $330,595 at 4% or $220,397 at 6%; with 50% employer match about $220,397 at 4% or $146,931 at 6%; with 100% employer match about $165,298 at 4% or $110,198 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,459$3,426,433,424$83,000,000$7,243iApproximate average salary by contribution assumption: employee only about $181,080 at 4% or $120,720 at 6%; with 50% employer match about $120,720 at 4% or $80,480 at 6%; with 100% employer match about $90,540 at 4% or $60,360 at 6%.
Flexible Reimbursement Account Plan Medical, Dental-2,650---
Mit Dental-10,896---
Health Plan for Employees of Mit-10,514---
Mit Vision Care Plan-5,699---
Mit Retiree Dental-1,181---
Travel Accident Life Insurance Plan for Mit Employees-12,841---
Mit Long Term Care-911---
Long Term Disability Plan for Staff Members of Mit-10,578---
Extended Illness Plan for Service Staff of Mit-1,082---
Extended Illness Plan for Support Staff of Mit-1,241---
Massachusetts Institute of Technology Group Life Insurance Plan-17,304---
20151315,574$7,155,619,592$176,914,796$11,360iApproximate average salary by contribution assumption: employee only about $283,991 at 4% or $189,327 at 6%; with 50% employer match about $189,327 at 4% or $126,218 at 6%; with 100% employer match about $141,995 at 4% or $94,664 at 6%.
Mit Supplemental 401K Plan-13,098$3,776,275,072$169,414,796$12,934iApproximate average salary by contribution assumption: employee only about $323,360 at 4% or $215,573 at 6%; with 50% employer match about $215,573 at 4% or $143,716 at 6%; with 100% employer match about $161,680 at 4% or $107,787 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-11,154$3,379,344,520$7,500,000$672iApproximate average salary by contribution assumption: employee only about $16,810 at 4% or $11,207 at 6%; with 50% employer match about $11,207 at 4% or $7,471 at 6%; with 100% employer match about $8,405 at 4% or $5,603 at 6%.
Mit Vision Care Plan-5,283---
Mit Retiree Dental-1,076---
Mit Dental-10,668---
Health Plan for Employees of Mit-10,265---
Flexible Reimbursement Account Plan Medical, Dental-2,683---
Travel Accident Life Insurance Plan for Mit Employees-12,586---
Mit Long Term Care-931---
Massachusetts Institute of Technology Group Life Insurance Plan-15,574---
Long Term Disability Plan for Staff Members of Mit-10,163---
Extended Illness Plan for Support Staff of Mit-1,175---
Extended Illness Plan for Service Staff of Mit-1,060---
20141314,948$7,159,368,544$174,472,431$11,672iApproximate average salary by contribution assumption: employee only about $291,799 at 4% or $194,533 at 6%; with 50% employer match about $194,533 at 4% or $129,688 at 6%; with 100% employer match about $145,899 at 4% or $97,266 at 6%.
Mit Supplemental 401K Plan-12,598$3,917,641,465$154,110,431$12,233iApproximate average salary by contribution assumption: employee only about $305,823 at 4% or $203,882 at 6%; with 50% employer match about $203,882 at 4% or $135,921 at 6%; with 100% employer match about $152,912 at 4% or $101,941 at 6%.
Massachusetts Institute of Technology Basic Retirement Plan-10,716$3,241,727,079$20,362,000$1,900iApproximate average salary by contribution assumption: employee only about $47,504 at 4% or $31,669 at 6%; with 50% employer match about $31,669 at 4% or $21,113 at 6%; with 100% employer match about $23,752 at 4% or $15,835 at 6%.
Mit Long Term Care-946---
Travel Accident Life Insurance Plan for Mit Employees-12,167---
Mit Vision Care Plan-4,870---
Mit Retiree Dental-1,031---
Mit Dental-10,350---
Health Plan for Employees of Mit-9,919---
Flexible Reimbursement Account Plan Medical, Dental-2,508---
Massachusetts Institute of Technology Group Life Insurance Plan-14,948---
Extended Illness Plan for Support Staff of Mit-1,447---
Extended Illness Plan for Service Staff of Mit-1,153---
Long Term Disability Plan for Staff Members of Mit-12,187---
20131314,418$6,769,674,202$176,323,960$12,229iApproximate average salary by contribution assumption: employee only about $305,736 at 4% or $203,824 at 6%; with 50% employer match about $203,824 at 4% or $135,883 at 6%; with 100% employer match about $152,868 at 4% or $101,912 at 6%.
Mit Supplemental 401K Plan-12,082$3,763,172,298$143,323,960$11,863iApproximate average salary by contribution assumption: employee only about $296,565 at 4% or $197,710 at 6%; with 50% employer match about $197,710 at 4% or $131,807 at 6%; with 100% employer match about $148,283 at 4% or $98,855 at 6%.
Mit Vision Care Plan-4,509---
Mit Dental-10,139---
Flexible Reimbursement Account Plan Medical, Dental-2,398---
Health Plan for Employees of Mit-10,139---
Mit Retiree Dental-977---
Mit Long Term Care-1,010---
Travel Accident Life Insurance Plan for Mit Employees-11,841---
Extended Illness Plan for Service Staff of Mit-1,011---
Extended Illness Plan for Support Staff of Mit-1,061---
Massachusetts Institute of Technology Group Life Insurance Plan-14,418---
Long Term Disability Plan for Staff Members of Mit-9,741---
20121313,915$5,898,560,230$135,957,757$9,771iApproximate average salary by contribution assumption: employee only about $244,265 at 4% or $162,843 at 6%; with 50% employer match about $162,843 at 4% or $108,562 at 6%; with 100% employer match about $122,132 at 4% or $81,422 at 6%.
20111312,159$5,403,359,540$122,820,116$10,101iApproximate average salary by contribution assumption: employee only about $252,529 at 4% or $168,353 at 6%; with 50% employer match about $168,353 at 4% or $112,235 at 6%; with 100% employer match about $126,265 at 4% or $84,176 at 6%.
20101311,829$5,443,775,658$120,242,151$10,165iApproximate average salary by contribution assumption: employee only about $254,126 at 4% or $169,417 at 6%; with 50% employer match about $169,417 at 4% or $112,945 at 6%; with 100% employer match about $127,063 at 4% or $84,709 at 6%.
20091411,784$6,387,922,086$121,140,256$10,280iApproximate average salary by contribution assumption: employee only about $257,002 at 4% or $171,334 at 6%; with 50% employer match about $171,334 at 4% or $114,223 at 6%; with 100% employer match about $128,501 at 4% or $85,667 at 6%.
20081212,170$4,370,238,842$117,009,914$9,615iApproximate average salary by contribution assumption: employee only about $240,365 at 4% or $160,244 at 6%; with 50% employer match about $160,244 at 4% or $106,829 at 6%; with 100% employer match about $120,183 at 4% or $80,122 at 6%.
20071111,689$5,902,884,588$113,330,543$9,695iApproximate average salary by contribution assumption: employee only about $242,387 at 4% or $161,591 at 6%; with 50% employer match about $161,591 at 4% or $107,728 at 6%; with 100% employer match about $121,194 at 4% or $80,796 at 6%.
20061011,914$5,457,943,499$105,614,060$8,865iApproximate average salary by contribution assumption: employee only about $221,618 at 4% or $147,745 at 6%; with 50% employer match about $147,745 at 4% or $98,497 at 6%; with 100% employer match about $110,809 at 4% or $73,873 at 6%.
20051012,307$4,891,485,290$94,688,610$7,694iApproximate average salary by contribution assumption: employee only about $192,347 at 4% or $128,231 at 6%; with 50% employer match about $128,231 at 4% or $85,488 at 6%; with 100% employer match about $96,174 at 4% or $64,116 at 6%.
20041012,009$4,589,327,469$86,008,100$7,162iApproximate average salary by contribution assumption: employee only about $179,049 at 4% or $119,366 at 6%; with 50% employer match about $119,366 at 4% or $79,577 at 6%; with 100% employer match about $89,525 at 4% or $59,683 at 6%.
20031011,783$4,039,757,236$77,530,802$6,580iApproximate average salary by contribution assumption: employee only about $164,497 at 4% or $109,665 at 6%; with 50% employer match about $109,665 at 4% or $73,110 at 6%; with 100% employer match about $82,249 at 4% or $54,832 at 6%.
20021111,322$3,345,698,428$70,606,404$6,236iApproximate average salary by contribution assumption: employee only about $155,905 at 4% or $103,937 at 6%; with 50% employer match about $103,937 at 4% or $69,291 at 6%; with 100% employer match about $77,953 at 4% or $51,968 at 6%.
20011411,051$3,778,185,170$63,246,249$5,723iApproximate average salary by contribution assumption: employee only about $143,078 at 4% or $95,385 at 6%; with 50% employer match about $95,385 at 4% or $63,590 at 6%; with 100% employer match about $71,539 at 4% or $47,693 at 6%.
20001310,717$0$0-
19991210,399$3,993,791,329$53,412,681$5,136iApproximate average salary by contribution assumption: employee only about $128,408 at 4% or $85,605 at 6%; with 50% employer match about $85,605 at 4% or $57,070 at 6%; with 100% employer match about $64,204 at 4% or $42,803 at 6%.