Civic Intelligence

Mad River Management LLC

Plan context: Mad River Management LLC 401(K) Profit Sharing Plan

EIN 04-3125274 • Boston, MA • 30 filings • 8 plans

84 State StSte 1060Boston, MA 02109
Current Snapshot

Latest Year

2023

2023 Participants

4

2023 Assets

$15,903,448

2023 Contributions

$517,310

Historical Graphs

Total Assets Over Time

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

$15,903,448$7,951,724$0200220142023YearValue
$15,903,448Latest year 2023

Participants Over Time

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

840200220132023YearValue
4Latest year 2023

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
202324$15,903,448$517,310$129,328iApproximate average salary by contribution assumption: employee only about $3,233,188 at 4% or $2,155,458 at 6%; with 50% employer match about $2,155,458 at 4% or $1,436,972 at 6%; with 100% employer match about $1,616,594 at 4% or $1,077,729 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$14,988,516$117,310$29,328iApproximate average salary by contribution assumption: employee only about $733,188 at 4% or $488,792 at 6%; with 50% employer match about $488,792 at 4% or $325,861 at 6%; with 100% employer match about $366,594 at 4% or $244,396 at 6%.
MRM-HORIZON ADVISORS, LLC CASH BALANCE PLAN-4$914,932$400,000$100,000iApproximate average salary by contribution assumption: employee only about $2,500,000 at 4% or $1,666,667 at 6%; with 50% employer match about $1,666,667 at 4% or $1,111,111 at 6%; with 100% employer match about $1,250,000 at 4% or $833,333 at 6%.
202224$15,804,562$236,750$59,188iApproximate average salary by contribution assumption: employee only about $1,479,688 at 4% or $986,458 at 6%; with 50% employer match about $986,458 at 4% or $657,639 at 6%; with 100% employer match about $739,844 at 4% or $493,229 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$15,341,794$136,750$34,188iApproximate average salary by contribution assumption: employee only about $854,688 at 4% or $569,792 at 6%; with 50% employer match about $569,792 at 4% or $379,861 at 6%; with 100% employer match about $427,344 at 4% or $284,896 at 6%.
MRM-HORIZON ADVISORS, LLC CASH BALANCE PLAN-4$462,768$100,000$25,000iApproximate average salary by contribution assumption: employee only about $625,000 at 4% or $416,667 at 6%; with 50% employer match about $416,667 at 4% or $277,778 at 6%; with 100% employer match about $312,500 at 4% or $208,333 at 6%.
202124$14,590,005$472,678$118,170iApproximate average salary by contribution assumption: employee only about $2,954,238 at 4% or $1,969,492 at 6%; with 50% employer match about $1,969,492 at 4% or $1,312,994 at 6%; with 100% employer match about $1,477,119 at 4% or $984,746 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$14,270,005$152,678$38,170iApproximate average salary by contribution assumption: employee only about $954,238 at 4% or $636,158 at 6%; with 50% employer match about $636,158 at 4% or $424,106 at 6%; with 100% employer match about $477,119 at 4% or $318,079 at 6%.
MRM-HORIZON ADVISORS, LLC CASH BALANCE PLAN-4$320,000$320,000$80,000iApproximate average salary by contribution assumption: employee only about $2,000,000 at 4% or $1,333,333 at 6%; with 50% employer match about $1,333,333 at 4% or $888,889 at 6%; with 100% employer match about $1,000,000 at 4% or $666,667 at 6%.
202014$10,672,428$137,435$34,359iApproximate average salary by contribution assumption: employee only about $858,969 at 4% or $572,646 at 6%; with 50% employer match about $572,646 at 4% or $381,764 at 6%; with 100% employer match about $429,484 at 4% or $286,323 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$10,672,428$137,435$34,359iApproximate average salary by contribution assumption: employee only about $858,969 at 4% or $572,646 at 6%; with 50% employer match about $572,646 at 4% or $381,764 at 6%; with 100% employer match about $429,484 at 4% or $286,323 at 6%.
201914$7,954,958$105,929$26,482iApproximate average salary by contribution assumption: employee only about $662,056 at 4% or $441,371 at 6%; with 50% employer match about $441,371 at 4% or $294,247 at 6%; with 100% employer match about $331,028 at 4% or $220,685 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$7,954,958$105,929$26,482iApproximate average salary by contribution assumption: employee only about $662,056 at 4% or $441,371 at 6%; with 50% employer match about $441,371 at 4% or $294,247 at 6%; with 100% employer match about $331,028 at 4% or $220,685 at 6%.
201816$6,002,232$160,864$26,811iApproximate average salary by contribution assumption: employee only about $670,267 at 4% or $446,844 at 6%; with 50% employer match about $446,844 at 4% or $297,896 at 6%; with 100% employer match about $335,133 at 4% or $223,422 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-6$6,002,232$160,864$26,811iApproximate average salary by contribution assumption: employee only about $670,267 at 4% or $446,844 at 6%; with 50% employer match about $446,844 at 4% or $297,896 at 6%; with 100% employer match about $335,133 at 4% or $223,422 at 6%.
201717$7,398,349$130,684$18,669iApproximate average salary by contribution assumption: employee only about $466,729 at 4% or $311,152 at 6%; with 50% employer match about $311,152 at 4% or $207,435 at 6%; with 100% employer match about $233,364 at 4% or $155,576 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$7,398,349$130,684$18,669iApproximate average salary by contribution assumption: employee only about $466,729 at 4% or $311,152 at 6%; with 50% employer match about $311,152 at 4% or $207,435 at 6%; with 100% employer match about $233,364 at 4% or $155,576 at 6%.
201617$5,194,715$157,913$22,559iApproximate average salary by contribution assumption: employee only about $563,975 at 4% or $375,983 at 6%; with 50% employer match about $375,983 at 4% or $250,656 at 6%; with 100% employer match about $281,988 at 4% or $187,992 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$5,194,715$157,913$22,559iApproximate average salary by contribution assumption: employee only about $563,975 at 4% or $375,983 at 6%; with 50% employer match about $375,983 at 4% or $250,656 at 6%; with 100% employer match about $281,988 at 4% or $187,992 at 6%.
201517$4,479,258$882,759$126,108iApproximate average salary by contribution assumption: employee only about $3,152,711 at 4% or $2,101,807 at 6%; with 50% employer match about $2,101,807 at 4% or $1,401,205 at 6%; with 100% employer match about $1,576,355 at 4% or $1,050,904 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$4,479,258$882,759$126,108iApproximate average salary by contribution assumption: employee only about $3,152,711 at 4% or $2,101,807 at 6%; with 50% employer match about $2,101,807 at 4% or $1,401,205 at 6%; with 100% employer match about $1,576,355 at 4% or $1,050,904 at 6%.
201417$4,378,079$192,534$27,505iApproximate average salary by contribution assumption: employee only about $687,621 at 4% or $458,414 at 6%; with 50% employer match about $458,414 at 4% or $305,610 at 6%; with 100% employer match about $343,811 at 4% or $229,207 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$4,378,079$192,534$27,505iApproximate average salary by contribution assumption: employee only about $687,621 at 4% or $458,414 at 6%; with 50% employer match about $458,414 at 4% or $305,610 at 6%; with 100% employer match about $343,811 at 4% or $229,207 at 6%.
201317$4,392,737$212,178$30,311iApproximate average salary by contribution assumption: employee only about $757,779 at 4% or $505,186 at 6%; with 50% employer match about $505,186 at 4% or $336,790 at 6%; with 100% employer match about $378,889 at 4% or $252,593 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$4,392,737$212,178$30,311iApproximate average salary by contribution assumption: employee only about $757,779 at 4% or $505,186 at 6%; with 50% employer match about $505,186 at 4% or $336,790 at 6%; with 100% employer match about $378,889 at 4% or $252,593 at 6%.
201218$2,944,596$154,531$19,316iApproximate average salary by contribution assumption: employee only about $482,909 at 4% or $321,940 at 6%; with 50% employer match about $321,940 at 4% or $214,626 at 6%; with 100% employer match about $241,455 at 4% or $160,970 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-8$2,944,596$154,531$19,316iApproximate average salary by contribution assumption: employee only about $482,909 at 4% or $321,940 at 6%; with 50% employer match about $321,940 at 4% or $214,626 at 6%; with 100% employer match about $241,455 at 4% or $160,970 at 6%.
201117$2,248,951$164,618$23,517iApproximate average salary by contribution assumption: employee only about $587,921 at 4% or $391,948 at 6%; with 50% employer match about $391,948 at 4% or $261,298 at 6%; with 100% employer match about $293,961 at 4% or $195,974 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$2,248,951$164,618$23,517iApproximate average salary by contribution assumption: employee only about $587,921 at 4% or $391,948 at 6%; with 50% employer match about $391,948 at 4% or $261,298 at 6%; with 100% employer match about $293,961 at 4% or $195,974 at 6%.
201037$2,977,517$1,228,739$175,534iApproximate average salary by contribution assumption: employee only about $4,388,354 at 4% or $2,925,569 at 6%; with 50% employer match about $2,925,569 at 4% or $1,950,379 at 6%; with 100% employer match about $2,194,177 at 4% or $1,462,785 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-6$2,205,957$1,160,613$193,436iApproximate average salary by contribution assumption: employee only about $4,835,888 at 4% or $3,223,925 at 6%; with 50% employer match about $3,223,925 at 4% or $2,149,283 at 6%; with 100% employer match about $2,417,944 at 4% or $1,611,963 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-7$771,560$68,126$9,732iApproximate average salary by contribution assumption: employee only about $243,307 at 4% or $162,205 at 6%; with 50% employer match about $162,205 at 4% or $108,137 at 6%; with 100% employer match about $121,654 at 4% or $81,102 at 6%.
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-0$0--
200915$990,840$35,059$7,012iApproximate average salary by contribution assumption: employee only about $175,295 at 4% or $116,863 at 6%; with 50% employer match about $116,863 at 4% or $77,909 at 6%; with 100% employer match about $87,648 at 4% or $58,432 at 6%.
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-5$990,840$35,059$7,012iApproximate average salary by contribution assumption: employee only about $175,295 at 4% or $116,863 at 6%; with 50% employer match about $116,863 at 4% or $77,909 at 6%; with 100% employer match about $87,648 at 4% or $58,432 at 6%.
200815$0$0-
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-5---
200727$0$0-
Mad River Management LLC 401(K) Profit Sharing Plan-7---
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-5---
200625$1,186,372$372,137$74,427iApproximate average salary by contribution assumption: employee only about $1,860,685 at 4% or $1,240,457 at 6%; with 50% employer match about $1,240,457 at 4% or $826,971 at 6%; with 100% employer match about $930,342 at 4% or $620,228 at 6%.
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-5$680,433$282,164$56,433iApproximate average salary by contribution assumption: employee only about $1,410,820 at 4% or $940,547 at 6%; with 50% employer match about $940,547 at 4% or $627,031 at 6%; with 100% employer match about $705,410 at 4% or $470,273 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-5$505,939$89,973$17,995iApproximate average salary by contribution assumption: employee only about $449,865 at 4% or $299,910 at 6%; with 50% employer match about $299,910 at 4% or $199,940 at 6%; with 100% employer match about $224,932 at 4% or $149,955 at 6%.
200525$578,916$368,082$73,616iApproximate average salary by contribution assumption: employee only about $1,840,410 at 4% or $1,226,940 at 6%; with 50% employer match about $1,226,940 at 4% or $817,960 at 6%; with 100% employer match about $920,205 at 4% or $613,470 at 6%.
MAD RIVER MANAGEMENT, LLC RETIREMENT PLAN-5$330,500$330,500$66,100iApproximate average salary by contribution assumption: employee only about $1,652,500 at 4% or $1,101,667 at 6%; with 50% employer match about $1,101,667 at 4% or $734,444 at 6%; with 100% employer match about $826,250 at 4% or $550,833 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-5$248,416$37,582$7,516iApproximate average salary by contribution assumption: employee only about $187,910 at 4% or $125,273 at 6%; with 50% employer match about $125,273 at 4% or $83,516 at 6%; with 100% employer match about $93,955 at 4% or $62,637 at 6%.
200414$203,846$103,554$25,889iApproximate average salary by contribution assumption: employee only about $647,213 at 4% or $431,475 at 6%; with 50% employer match about $431,475 at 4% or $287,650 at 6%; with 100% employer match about $323,606 at 4% or $215,738 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$203,846$103,554$25,889iApproximate average salary by contribution assumption: employee only about $647,213 at 4% or $431,475 at 6%; with 50% employer match about $431,475 at 4% or $287,650 at 6%; with 100% employer match about $323,606 at 4% or $215,738 at 6%.
200314$88,856$50,082$12,521iApproximate average salary by contribution assumption: employee only about $313,013 at 4% or $208,675 at 6%; with 50% employer match about $208,675 at 4% or $139,117 at 6%; with 100% employer match about $156,506 at 4% or $104,338 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-4$88,856$50,082$12,521iApproximate average salary by contribution assumption: employee only about $313,013 at 4% or $208,675 at 6%; with 50% employer match about $208,675 at 4% or $139,117 at 6%; with 100% employer match about $156,506 at 4% or $104,338 at 6%.
200216$32,471$32,135$5,356iApproximate average salary by contribution assumption: employee only about $133,896 at 4% or $89,264 at 6%; with 50% employer match about $89,264 at 4% or $59,509 at 6%; with 100% employer match about $66,948 at 4% or $44,632 at 6%.
Mad River Management LLC 401(K) Profit Sharing Plan-6$32,471$32,135$5,356iApproximate average salary by contribution assumption: employee only about $133,896 at 4% or $89,264 at 6%; with 50% employer match about $89,264 at 4% or $59,509 at 6%; with 100% employer match about $66,948 at 4% or $44,632 at 6%.