Cabot Microelectronics Corporation
Plan context: Cabot Microelectronics Corporation 401(K) Plan
EIN 36-4324765 • Aurora, IL • 42 filings • 5 plans
Current Snapshot
Latest Year
2023
2023 Participants
1,219
2023 Assets
$223,754,692
2023 Contributions
$18,534,579
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 |
|---|---|---|---|---|---|
| 2023 | 2 | 0 | $0 | $18,534,579 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 0 | - | - | - |
| Cabot Microelectronics Corporation 401(K) Plan | - | 0 | - | $18,534,579 | - |
| 2022 | 2 | 1,219 | $223,754,692 | $23,221,492 | $19,050iApproximate average salary by contribution assumption: employee only about $476,241 at 4% or $317,494 at 6%; with 50% employer match about $317,494 at 4% or $211,662 at 6%; with 100% employer match about $238,120 at 4% or $158,747 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 1,107 | $223,754,692 | $23,221,492 | $20,977iApproximate average salary by contribution assumption: employee only about $524,424 at 4% or $349,616 at 6%; with 50% employer match about $349,616 at 4% or $233,077 at 6%; with 100% employer match about $262,212 at 4% or $174,808 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 1,219 | - | - | - |
| 2021 | 2 | 1,214 | $276,701,796 | $21,114,181 | $17,392iApproximate average salary by contribution assumption: employee only about $434,806 at 4% or $289,871 at 6%; with 50% employer match about $289,871 at 4% or $193,247 at 6%; with 100% employer match about $217,403 at 4% or $144,935 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 1,145 | $276,701,796 | $21,114,181 | $18,440iApproximate average salary by contribution assumption: employee only about $461,008 at 4% or $307,339 at 6%; with 50% employer match about $307,339 at 4% or $204,893 at 6%; with 100% employer match about $230,504 at 4% or $153,669 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 1,214 | - | - | - |
| 2020 | 2 | 1,110 | $233,862,371 | $20,375,025 | $18,356iApproximate average salary by contribution assumption: employee only about $458,897 at 4% or $305,931 at 6%; with 50% employer match about $305,931 at 4% or $203,954 at 6%; with 100% employer match about $229,448 at 4% or $152,966 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 1,110 | $233,862,371 | $20,375,025 | $18,356iApproximate average salary by contribution assumption: employee only about $458,897 at 4% or $305,931 at 6%; with 50% employer match about $305,931 at 4% or $203,954 at 6%; with 100% employer match about $229,448 at 4% or $152,966 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 1,094 | - | - | - |
| 2019 | 2 | 727 | $167,111,172 | $14,384,908 | $19,787iApproximate average salary by contribution assumption: employee only about $494,667 at 4% or $329,778 at 6%; with 50% employer match about $329,778 at 4% or $219,852 at 6%; with 100% employer match about $247,333 at 4% or $164,889 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 727 | $167,111,172 | $14,384,908 | $19,787iApproximate average salary by contribution assumption: employee only about $494,667 at 4% or $329,778 at 6%; with 50% employer match about $329,778 at 4% or $219,852 at 6%; with 100% employer match about $247,333 at 4% or $164,889 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 726 | - | - | - |
| 2018 | 2 | 685 | $132,796,572 | $12,810,611 | $18,702iApproximate average salary by contribution assumption: employee only about $467,541 at 4% or $311,694 at 6%; with 50% employer match about $311,694 at 4% or $207,796 at 6%; with 100% employer match about $233,770 at 4% or $155,847 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 685 | $132,796,572 | $12,810,611 | $18,702iApproximate average salary by contribution assumption: employee only about $467,541 at 4% or $311,694 at 6%; with 50% employer match about $311,694 at 4% or $207,796 at 6%; with 100% employer match about $233,770 at 4% or $155,847 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 550 | - | - | - |
| 2017 | 2 | 641 | $140,147,133 | $12,095,800 | $18,870iApproximate average salary by contribution assumption: employee only about $471,755 at 4% or $314,503 at 6%; with 50% employer match about $314,503 at 4% or $209,669 at 6%; with 100% employer match about $235,878 at 4% or $157,252 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 641 | $140,147,133 | $12,095,800 | $18,870iApproximate average salary by contribution assumption: employee only about $471,755 at 4% or $314,503 at 6%; with 50% employer match about $314,503 at 4% or $209,669 at 6%; with 100% employer match about $235,878 at 4% or $157,252 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 621 | - | - | - |
| 2016 | 2 | 585 | $117,696,518 | $10,556,993 | $18,046iApproximate average salary by contribution assumption: employee only about $451,154 at 4% or $300,769 at 6%; with 50% employer match about $300,769 at 4% or $200,513 at 6%; with 100% employer match about $225,577 at 4% or $150,385 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 585 | $117,696,518 | $10,556,993 | $18,046iApproximate average salary by contribution assumption: employee only about $451,154 at 4% or $300,769 at 6%; with 50% employer match about $300,769 at 4% or $200,513 at 6%; with 100% employer match about $225,577 at 4% or $150,385 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 574 | - | - | - |
| 2015 | 2 | 459 | $107,918,729 | $9,077,251 | $19,776iApproximate average salary by contribution assumption: employee only about $494,404 at 4% or $329,602 at 6%; with 50% employer match about $329,602 at 4% or $219,735 at 6%; with 100% employer match about $247,202 at 4% or $164,801 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 459 | $107,918,729 | $9,077,251 | $19,776iApproximate average salary by contribution assumption: employee only about $494,404 at 4% or $329,602 at 6%; with 50% employer match about $329,602 at 4% or $219,735 at 6%; with 100% employer match about $247,202 at 4% or $164,801 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 441 | - | - | - |
| 2014 | 2 | 492 | $106,100,731 | $8,982,132 | $18,256iApproximate average salary by contribution assumption: employee only about $456,409 at 4% or $304,273 at 6%; with 50% employer match about $304,273 at 4% or $202,849 at 6%; with 100% employer match about $228,205 at 4% or $152,136 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 492 | $106,100,731 | $8,982,132 | $18,256iApproximate average salary by contribution assumption: employee only about $456,409 at 4% or $304,273 at 6%; with 50% employer match about $304,273 at 4% or $202,849 at 6%; with 100% employer match about $228,205 at 4% or $152,136 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 480 | - | - | - |
| 2013 | 2 | 485 | $95,933,253 | $8,773,991 | $18,091iApproximate average salary by contribution assumption: employee only about $452,268 at 4% or $301,512 at 6%; with 50% employer match about $301,512 at 4% or $201,008 at 6%; with 100% employer match about $226,134 at 4% or $150,756 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 485 | $95,933,253 | $8,773,991 | $18,091iApproximate average salary by contribution assumption: employee only about $452,268 at 4% or $301,512 at 6%; with 50% employer match about $301,512 at 4% or $201,008 at 6%; with 100% employer match about $226,134 at 4% or $150,756 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 484 | - | - | - |
| 2012 | 2 | 498 | $73,306,645 | $8,102,967 | $16,271iApproximate average salary by contribution assumption: employee only about $406,775 at 4% or $271,184 at 6%; with 50% employer match about $271,184 at 4% or $180,789 at 6%; with 100% employer match about $203,388 at 4% or $135,592 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 498 | $73,306,645 | $8,102,967 | $16,271iApproximate average salary by contribution assumption: employee only about $406,775 at 4% or $271,184 at 6%; with 50% employer match about $271,184 at 4% or $180,789 at 6%; with 100% employer match about $203,388 at 4% or $135,592 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 486 | - | - | - |
| 2011 | 2 | 474 | $60,989,340 | $7,987,057 | $16,850iApproximate average salary by contribution assumption: employee only about $421,258 at 4% or $280,839 at 6%; with 50% employer match about $280,839 at 4% or $187,226 at 6%; with 100% employer match about $210,629 at 4% or $140,419 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 474 | $60,989,340 | $7,987,057 | $16,850iApproximate average salary by contribution assumption: employee only about $421,258 at 4% or $280,839 at 6%; with 50% employer match about $280,839 at 4% or $187,226 at 6%; with 100% employer match about $210,629 at 4% or $140,419 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 469 | - | - | - |
| 2010 | 2 | 464 | $57,923,179 | $7,465,128 | $16,089iApproximate average salary by contribution assumption: employee only about $402,216 at 4% or $268,144 at 6%; with 50% employer match about $268,144 at 4% or $178,763 at 6%; with 100% employer match about $201,108 at 4% or $134,072 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 464 | $57,923,179 | $7,465,128 | $16,089iApproximate average salary by contribution assumption: employee only about $402,216 at 4% or $268,144 at 6%; with 50% employer match about $268,144 at 4% or $178,763 at 6%; with 100% employer match about $201,108 at 4% or $134,072 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 451 | - | - | - |
| 2009 | 2 | 492 | $46,601,446 | $5,266,359 | $10,704iApproximate average salary by contribution assumption: employee only about $267,600 at 4% or $178,400 at 6%; with 50% employer match about $178,400 at 4% or $118,933 at 6%; with 100% employer match about $133,800 at 4% or $89,200 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 438 | $46,601,446 | $5,266,359 | $12,024iApproximate average salary by contribution assumption: employee only about $300,591 at 4% or $200,394 at 6%; with 50% employer match about $200,394 at 4% or $133,596 at 6%; with 100% employer match about $150,296 at 4% or $100,197 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 492 | - | - | - |
| 2008 | 2 | 510 | $34,768,964 | $7,909,896 | $15,510iApproximate average salary by contribution assumption: employee only about $387,740 at 4% or $258,493 at 6%; with 50% employer match about $258,493 at 4% or $172,329 at 6%; with 100% employer match about $193,870 at 4% or $129,247 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 507 | $34,768,964 | $7,909,896 | $15,601iApproximate average salary by contribution assumption: employee only about $390,034 at 4% or $260,023 at 6%; with 50% employer match about $260,023 at 4% or $173,349 at 6%; with 100% employer match about $195,017 at 4% or $130,011 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 510 | - | - | - |
| 2007 | 2 | 470 | $47,823,949 | $10,137,779 | $21,570iApproximate average salary by contribution assumption: employee only about $539,244 at 4% or $359,496 at 6%; with 50% employer match about $359,496 at 4% or $239,664 at 6%; with 100% employer match about $269,622 at 4% or $179,748 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 470 | $47,823,949 | $10,137,779 | $21,570iApproximate average salary by contribution assumption: employee only about $539,244 at 4% or $359,496 at 6%; with 50% employer match about $359,496 at 4% or $239,664 at 6%; with 100% employer match about $269,622 at 4% or $179,748 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 470 | - | - | - |
| 2006 | 2 | 444 | $37,568,485 | $6,568,478 | $14,794iApproximate average salary by contribution assumption: employee only about $369,847 at 4% or $246,564 at 6%; with 50% employer match about $246,564 at 4% or $164,376 at 6%; with 100% employer match about $184,923 at 4% or $123,282 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 444 | $37,568,485 | $6,568,478 | $14,794iApproximate average salary by contribution assumption: employee only about $369,847 at 4% or $246,564 at 6%; with 50% employer match about $246,564 at 4% or $164,376 at 6%; with 100% employer match about $184,923 at 4% or $123,282 at 6%. |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 427 | - | - | - |
| 2005 | 1 | 448 | $28,744,133 | $5,959,237 | $13,302iApproximate average salary by contribution assumption: employee only about $332,547 at 4% or $221,698 at 6%; with 50% employer match about $221,698 at 4% or $147,799 at 6%; with 100% employer match about $166,273 at 4% or $110,849 at 6%. |
| Cabot Microelectronics Corporation 401(K) Plan | - | 448 | $28,744,133 | $5,959,237 | $13,302iApproximate average salary by contribution assumption: employee only about $332,547 at 4% or $221,698 at 6%; with 50% employer match about $221,698 at 4% or $147,799 at 6%; with 100% employer match about $166,273 at 4% or $110,849 at 6%. |
| 2004 | 1 | 409 | $0 | $0 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 409 | - | - | - |
| 2003 | 1 | 384 | $0 | $0 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 384 | - | - | - |
| 2002 | 1 | 341 | $0 | $0 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 341 | - | - | - |
| 2001 | 1 | 321 | $0 | $0 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 321 | - | - | - |
| 2000 | 1 | 298 | $0 | $0 | - |
| Cabot Microelectronics Corporation Group Welfare Benefit Plan | - | 298 | - | - | - |