Sentinel Managment Company
Plan context: Semco Carbon 401(K) Plan
EIN 34-1114689 • Lorain, OH • 13 filings • 2 plans
Current Snapshot
Latest Year
2024
2024 Participants
35
2024 Assets
$2,156,875
2024 Contributions
$221,208
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 | 1 | 35 | $2,156,875 | $221,208 | $6,320iApproximate average salary by contribution assumption: employee only about $158,006 at 4% or $105,337 at 6%; with 50% employer match about $105,337 at 4% or $70,225 at 6%; with 100% employer match about $79,003 at 4% or $52,669 at 6%. |
| Semco Carbon 401(K) Plan | - | 35 | $2,156,875 | $221,208 | $6,320iApproximate average salary by contribution assumption: employee only about $158,006 at 4% or $105,337 at 6%; with 50% employer match about $105,337 at 4% or $70,225 at 6%; with 100% employer match about $79,003 at 4% or $52,669 at 6%. |
| 2023 | 1 | 29 | $1,767,410 | $198,388 | $6,841iApproximate average salary by contribution assumption: employee only about $171,024 at 4% or $114,016 at 6%; with 50% employer match about $114,016 at 4% or $76,011 at 6%; with 100% employer match about $85,512 at 4% or $57,008 at 6%. |
| Semco Carbon 401(K) Plan | - | 29 | $1,767,410 | $198,388 | $6,841iApproximate average salary by contribution assumption: employee only about $171,024 at 4% or $114,016 at 6%; with 50% employer match about $114,016 at 4% or $76,011 at 6%; with 100% employer match about $85,512 at 4% or $57,008 at 6%. |
| 2022 | 1 | 28 | $1,472,509 | $194,708 | $6,954iApproximate average salary by contribution assumption: employee only about $173,846 at 4% or $115,898 at 6%; with 50% employer match about $115,898 at 4% or $77,265 at 6%; with 100% employer match about $86,923 at 4% or $57,949 at 6%. |
| Semco Carbon 401(K) Plan | - | 28 | $1,472,509 | $194,708 | $6,954iApproximate average salary by contribution assumption: employee only about $173,846 at 4% or $115,898 at 6%; with 50% employer match about $115,898 at 4% or $77,265 at 6%; with 100% employer match about $86,923 at 4% or $57,949 at 6%. |
| 2021 | 1 | 24 | $1,702,509 | $165,931 | $6,914iApproximate average salary by contribution assumption: employee only about $172,845 at 4% or $115,230 at 6%; with 50% employer match about $115,230 at 4% or $76,820 at 6%; with 100% employer match about $86,422 at 4% or $57,615 at 6%. |
| Semco Carbon 401(K) Plan | - | 24 | $1,702,509 | $165,931 | $6,914iApproximate average salary by contribution assumption: employee only about $172,845 at 4% or $115,230 at 6%; with 50% employer match about $115,230 at 4% or $76,820 at 6%; with 100% employer match about $86,422 at 4% or $57,615 at 6%. |
| 2020 | 1 | 23 | $1,389,540 | $389,544 | $16,937iApproximate average salary by contribution assumption: employee only about $423,417 at 4% or $282,278 at 6%; with 50% employer match about $282,278 at 4% or $188,186 at 6%; with 100% employer match about $211,709 at 4% or $141,139 at 6%. |
| Semco Carbon 401(K) Plan | - | 23 | $1,389,540 | $389,544 | $16,937iApproximate average salary by contribution assumption: employee only about $423,417 at 4% or $282,278 at 6%; with 50% employer match about $282,278 at 4% or $188,186 at 6%; with 100% employer match about $211,709 at 4% or $141,139 at 6%. |
| 2019 | 1 | 21 | $1,013,558 | $155,589 | $7,409iApproximate average salary by contribution assumption: employee only about $185,225 at 4% or $123,483 at 6%; with 50% employer match about $123,483 at 4% or $82,322 at 6%; with 100% employer match about $92,613 at 4% or $61,742 at 6%. |
| Semco Carbon 401(K) Plan | - | 21 | $1,013,558 | $155,589 | $7,409iApproximate average salary by contribution assumption: employee only about $185,225 at 4% or $123,483 at 6%; with 50% employer match about $123,483 at 4% or $82,322 at 6%; with 100% employer match about $92,613 at 4% or $61,742 at 6%. |
| 2018 | 1 | 23 | $742,509 | $158,314 | $6,883iApproximate average salary by contribution assumption: employee only about $172,080 at 4% or $114,720 at 6%; with 50% employer match about $114,720 at 4% or $76,480 at 6%; with 100% employer match about $86,040 at 4% or $57,360 at 6%. |
| Semco Carbon 401(K) Plan | - | 23 | $742,509 | $158,314 | $6,883iApproximate average salary by contribution assumption: employee only about $172,080 at 4% or $114,720 at 6%; with 50% employer match about $114,720 at 4% or $76,480 at 6%; with 100% employer match about $86,040 at 4% or $57,360 at 6%. |
| 2017 | 1 | 19 | $658,266 | $138,613 | $7,295iApproximate average salary by contribution assumption: employee only about $182,386 at 4% or $121,590 at 6%; with 50% employer match about $121,590 at 4% or $81,060 at 6%; with 100% employer match about $91,193 at 4% or $60,795 at 6%. |
| Semco Carbon 401(K) Plan | - | 19 | $658,266 | $138,613 | $7,295iApproximate average salary by contribution assumption: employee only about $182,386 at 4% or $121,590 at 6%; with 50% employer match about $121,590 at 4% or $81,060 at 6%; with 100% employer match about $91,193 at 4% or $60,795 at 6%. |
| 2016 | 1 | 14 | $551,486 | $64,269 | $4,591iApproximate average salary by contribution assumption: employee only about $114,766 at 4% or $76,511 at 6%; with 50% employer match about $76,511 at 4% or $51,007 at 6%; with 100% employer match about $57,383 at 4% or $38,255 at 6%. |
| Semco Carbon 401(K) Plan | - | 14 | $551,486 | $64,269 | $4,591iApproximate average salary by contribution assumption: employee only about $114,766 at 4% or $76,511 at 6%; with 50% employer match about $76,511 at 4% or $51,007 at 6%; with 100% employer match about $57,383 at 4% or $38,255 at 6%. |
| 2015 | 1 | 22 | $559,878 | $151,114 | $6,869iApproximate average salary by contribution assumption: employee only about $171,720 at 4% or $114,480 at 6%; with 50% employer match about $114,480 at 4% or $76,320 at 6%; with 100% employer match about $85,860 at 4% or $57,240 at 6%. |
| Semco Carbon 401(K) Plan | - | 22 | $559,878 | $151,114 | $6,869iApproximate average salary by contribution assumption: employee only about $171,720 at 4% or $114,480 at 6%; with 50% employer match about $114,480 at 4% or $76,320 at 6%; with 100% employer match about $85,860 at 4% or $57,240 at 6%. |
| 2014 | 1 | 24 | $423,632 | $144,049 | $6,002iApproximate average salary by contribution assumption: employee only about $150,051 at 4% or $100,034 at 6%; with 50% employer match about $100,034 at 4% or $66,689 at 6%; with 100% employer match about $75,026 at 4% or $50,017 at 6%. |
| Semco Carbon 401(K) Plan | - | 24 | $423,632 | $144,049 | $6,002iApproximate average salary by contribution assumption: employee only about $150,051 at 4% or $100,034 at 6%; with 50% employer match about $100,034 at 4% or $66,689 at 6%; with 100% employer match about $75,026 at 4% or $50,017 at 6%. |
| 2013 | 1 | 19 | $260,289 | $124,914 | $6,574iApproximate average salary by contribution assumption: employee only about $164,361 at 4% or $109,574 at 6%; with 50% employer match about $109,574 at 4% or $73,049 at 6%; with 100% employer match about $82,180 at 4% or $54,787 at 6%. |
| Semco Carbon 401(K) Plan | - | 19 | $260,289 | $124,914 | $6,574iApproximate average salary by contribution assumption: employee only about $164,361 at 4% or $109,574 at 6%; with 50% employer match about $109,574 at 4% or $73,049 at 6%; with 100% employer match about $82,180 at 4% or $54,787 at 6%. |
| 2012 | 1 | 18 | $113,018 | $108,564 | $6,031iApproximate average salary by contribution assumption: employee only about $150,783 at 4% or $100,522 at 6%; with 50% employer match about $100,522 at 4% or $67,015 at 6%; with 100% employer match about $75,392 at 4% or $50,261 at 6%. |
| Semco Carbon 401(K) Plan | - | 18 | $113,018 | $108,564 | $6,031iApproximate average salary by contribution assumption: employee only about $150,783 at 4% or $100,522 at 6%; with 50% employer match about $100,522 at 4% or $67,015 at 6%; with 100% employer match about $75,392 at 4% or $50,261 at 6%. |