Arconic Corporation
Plan context: Arconic Corp. 401(K) Plans Master Trust
EIN 84-2745636 • 65 filings • 13 plans
Current Snapshot
Latest Year
2024
2024 Participants
5,436
2024 Assets
$5,154,204,655
2024 Contributions
$182,719,678
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 | 13 | 5,436 | $5,154,204,655 | $182,719,678 | $33,613iApproximate average salary by contribution assumption: employee only about $840,322 at 4% or $560,215 at 6%; with 50% employer match about $560,215 at 4% or $373,477 at 6%; with 100% employer match about $420,161 at 4% or $280,107 at 6%. |
| Arconic Corp. 401(K) Plans Master Trust | - | - | $1,487,632,517 | - | - |
| Arconic Corp. Pension Plans Master Trust | - | - | $1,062,687,894 | - | - |
| Arconic Corp. Salaried 401(K) Plan | - | 2,169 | $765,067,186 | $41,283,502 | $19,033iApproximate average salary by contribution assumption: employee only about $475,836 at 4% or $317,224 at 6%; with 50% employer match about $317,224 at 4% or $211,483 at 6%; with 100% employer match about $237,918 at 4% or $158,612 at 6%. |
| Arconic Corp. Hourly 401(K) Plan | - | 5,436 | $750,826,642 | $67,162,176 | $12,355iApproximate average salary by contribution assumption: employee only about $308,877 at 4% or $205,918 at 6%; with 50% employer match about $205,918 at 4% or $137,279 at 6%; with 100% employer match about $154,438 at 4% or $102,959 at 6%. |
| Arconic Corp. Pension Plan B | - | 3,353 | $548,767,187 | $42,217,000 | $12,591iApproximate average salary by contribution assumption: employee only about $314,770 at 4% or $209,847 at 6%; with 50% employer match about $209,847 at 4% or $139,898 at 6%; with 100% employer match about $157,385 at 4% or $104,923 at 6%. |
| Arconic Corp. Pension Plan A | - | 390 | $539,223,229 | $32,057,000 | $82,197iApproximate average salary by contribution assumption: employee only about $2,054,936 at 4% or $1,369,957 at 6%; with 50% employer match about $1,369,957 at 4% or $913,305 at 6%; with 100% employer match about $1,027,468 at 4% or $684,979 at 6%. |
| Arconic Corp. Group Benefits Plan I | - | 4,158 | - | - | - |
| Arconic Corp. Group Benefits Plan II | - | 3,937 | - | - | - |
| Arconic Corp. Health Reimbursement Arrangement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Involuntary Separation Plan | - | 1,468 | - | - | - |
| Arconic Corp. Medicare Part B Reimbursement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Retiree Group Benefits Plan II | - | 0 | - | - | - |
| Arconic Corp. Supplemental Unemployment Benefits | - | 3,497 | - | - | - |
| 2023 | 13 | 5,965 | $5,057,810,099 | $141,243,840 | $23,679iApproximate average salary by contribution assumption: employee only about $591,969 at 4% or $394,646 at 6%; with 50% employer match about $394,646 at 4% or $263,097 at 6%; with 100% employer match about $295,985 at 4% or $197,323 at 6%. |
| Arconic Corp. 401(K) Plans Master Trust | - | - | $1,365,865,360 | - | - |
| Arconic Corp. Pension Plans Master Trust | - | - | $1,149,564,130 | - | - |
| Arconic Corp. Salaried 401(K) Plan | - | 2,284 | $712,018,496 | $45,227,388 | $19,802iApproximate average salary by contribution assumption: employee only about $495,046 at 4% or $330,031 at 6%; with 50% employer match about $330,031 at 4% or $220,020 at 6%; with 100% employer match about $247,523 at 4% or $165,015 at 6%. |
| Arconic Corp. Hourly 401(K) Plan | - | 5,965 | $678,266,464 | $65,316,452 | $10,950iApproximate average salary by contribution assumption: employee only about $273,749 at 4% or $182,499 at 6%; with 50% employer match about $182,499 at 4% or $121,666 at 6%; with 100% employer match about $136,874 at 4% or $91,250 at 6%. |
| Arconic Corp. Pension Plan A | - | 439 | $586,742,034 | $9,800,000 | $22,323iApproximate average salary by contribution assumption: employee only about $558,087 at 4% or $372,058 at 6%; with 50% employer match about $372,058 at 4% or $248,038 at 6%; with 100% employer match about $279,043 at 4% or $186,029 at 6%. |
| Arconic Corp. Pension Plan B | - | 3,592 | $565,353,615 | $20,900,000 | $5,818iApproximate average salary by contribution assumption: employee only about $145,462 at 4% or $96,975 at 6%; with 50% employer match about $96,975 at 4% or $64,650 at 6%; with 100% employer match about $72,731 at 4% or $48,487 at 6%. |
| Arconic Corp. Group Benefits Plan I | - | 4,270 | - | - | - |
| Arconic Corp. Group Benefits Plan II | - | 4,109 | - | - | - |
| Arconic Corp. Health Reimbursement Arrangement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Involuntary Separation Plan | - | 1,551 | - | - | - |
| Arconic Corp. Medicare Part B Reimbursement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Retiree Group Benefits Plan II | - | 0 | - | - | - |
| Arconic Corp. Supplemental Unemployment Benefits | - | 3,622 | - | - | - |
| 2022 | 13 | 6,136 | $4,812,184,102 | $132,485,389 | $21,591iApproximate average salary by contribution assumption: employee only about $539,787 at 4% or $359,858 at 6%; with 50% employer match about $359,858 at 4% or $239,905 at 6%; with 100% employer match about $269,894 at 4% or $179,929 at 6%. |
| Arconic Corp. 401(K) Plans Master Trust | - | - | $1,223,069,287 | - | - |
| Arconic Corp. Pension Plans Master Trust | - | - | $1,170,639,911 | - | - |
| Arconic Corp. Salaried 401(K) Plan | - | 2,228 | $652,879,513 | $40,601,820 | $18,223iApproximate average salary by contribution assumption: employee only about $455,586 at 4% or $303,724 at 6%; with 50% employer match about $303,724 at 4% or $202,483 at 6%; with 100% employer match about $227,793 at 4% or $151,862 at 6%. |
| Arconic Corp. Pension Plan A | - | 478 | $615,322,114 | $9,400,000 | $19,665iApproximate average salary by contribution assumption: employee only about $491,632 at 4% or $327,755 at 6%; with 50% employer match about $327,755 at 4% or $218,503 at 6%; with 100% employer match about $245,816 at 4% or $163,877 at 6%. |
| Arconic Corp. Hourly 401(K) Plan | - | 6,136 | $592,830,292 | $62,183,569 | $10,134iApproximate average salary by contribution assumption: employee only about $253,355 at 4% or $168,904 at 6%; with 50% employer match about $168,904 at 4% or $112,602 at 6%; with 100% employer match about $126,678 at 4% or $84,452 at 6%. |
| Arconic Corp. Pension Plan B | - | 3,877 | $557,442,985 | $20,300,000 | $5,236iApproximate average salary by contribution assumption: employee only about $130,900 at 4% or $87,267 at 6%; with 50% employer match about $87,267 at 4% or $58,178 at 6%; with 100% employer match about $65,450 at 4% or $43,633 at 6%. |
| Arconic Corp. Supplemental Unemployment Benefits | - | 3,538 | - | - | - |
| Arconic Corp. Group Benefits Plan I | - | 4,478 | - | - | - |
| Arconic Corp. Group Benefits Plan II | - | 4,127 | - | - | - |
| Arconic Corp. Health Reimbursement Arrangement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Involuntary Separation Plan | - | 2,199 | - | - | - |
| Arconic Corp. Medicare Part B Reimbursement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Retiree Group Benefits Plan II | - | 0 | - | - | - |
| 2021 | 13 | 5,084 | $6,532,564,910 | $563,503,589 | $110,839iApproximate average salary by contribution assumption: employee only about $2,770,966 at 4% or $1,847,310 at 6%; with 50% employer match about $1,847,310 at 4% or $1,231,540 at 6%; with 100% employer match about $1,385,483 at 4% or $923,655 at 6%. |
| Arconic Corp. Pension Plans Master Trust | - | - | $1,749,969,885 | - | - |
| Arconic Corp. 401(K) Plans Master Trust | - | - | $1,509,032,920 | $88,073,547 | - |
| Arconic Corp. Pension Plan A | - | 595 | $967,650,994 | $172,819,000 | $290,452iApproximate average salary by contribution assumption: employee only about $7,261,303 at 4% or $4,840,868 at 6%; with 50% employer match about $4,840,868 at 4% or $3,227,246 at 6%; with 100% employer match about $3,630,651 at 4% or $2,420,434 at 6%. |
| Arconic Corp. Salaried 401(K) Plan | - | 2,093 | $814,517,523 | $35,957,338 | $17,180iApproximate average salary by contribution assumption: employee only about $429,495 at 4% or $286,330 at 6%; with 50% employer match about $286,330 at 4% or $190,887 at 6%; with 100% employer match about $214,748 at 4% or $143,165 at 6%. |
| Arconic Corp. Pension Plan B | - | 4,207 | $792,898,129 | $214,128,000 | $50,898iApproximate average salary by contribution assumption: employee only about $1,272,451 at 4% or $848,300 at 6%; with 50% employer match about $848,300 at 4% or $565,534 at 6%; with 100% employer match about $636,225 at 4% or $424,150 at 6%. |
| Arconic Corp. Hourly 401(K) Plan | - | 5,084 | $698,495,459 | $52,525,704 | $10,332iApproximate average salary by contribution assumption: employee only about $258,289 at 4% or $172,193 at 6%; with 50% employer match about $172,193 at 4% or $114,795 at 6%; with 100% employer match about $129,145 at 4% or $86,096 at 6%. |
| Arconic Corp. Group Benefits Plan I | - | 4,165 | - | - | - |
| Arconic Corp. Group Benefits Plan II | - | 3,911 | - | - | - |
| Arconic Corp. Health Reimbursement Arrangement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Involuntary Separation Plan | - | 2,078 | - | - | - |
| Arconic Corp. Medicare Part B Reimbursement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Retiree Group Benefits Plan II | - | 0 | - | - | - |
| Arconic Corp. Supplemental Unemployment Benefits | - | 3,320 | - | - | - |
| 2020 | 13 | 5,359 | $7,704,228,556 | $316,733,812 | $59,103iApproximate average salary by contribution assumption: employee only about $1,477,579 at 4% or $985,053 at 6%; with 50% employer match about $985,053 at 4% or $656,702 at 6%; with 100% employer match about $738,789 at 4% or $492,526 at 6%. |
| Arconic Corp. Pension Plans Master Trust | - | - | $2,424,765,139 | - | - |
| Arconic Corp. 401(K) Plans Master Trust | - | - | $1,348,585,984 | $64,978,259 | - |
| Arconic Corp. Pension Plan B | - | 4,646 | $1,281,535,916 | $103,556,000 | $22,289iApproximate average salary by contribution assumption: employee only about $557,232 at 4% or $371,488 at 6%; with 50% employer match about $371,488 at 4% or $247,659 at 6%; with 100% employer match about $278,616 at 4% or $185,744 at 6%. |
| Arconic Corp. Pension Plan A | - | 666 | $1,213,646,532 | $79,281,000 | $119,041iApproximate average salary by contribution assumption: employee only about $2,976,014 at 4% or $1,984,009 at 6%; with 50% employer match about $1,984,009 at 4% or $1,322,673 at 6%; with 100% employer match about $1,488,007 at 4% or $992,005 at 6%. |
| Arconic Corp. Salaried 401(K) Plan | - | 1,995 | $789,544,217 | $25,657,257 | $12,861iApproximate average salary by contribution assumption: employee only about $321,520 at 4% or $214,346 at 6%; with 50% employer match about $214,346 at 4% or $142,898 at 6%; with 100% employer match about $160,760 at 4% or $107,173 at 6%. |
| Arconic Corp. Hourly 401(K) Plan | - | 5,359 | $646,150,768 | $43,261,296 | $8,073iApproximate average salary by contribution assumption: employee only about $201,816 at 4% or $134,544 at 6%; with 50% employer match about $134,544 at 4% or $89,696 at 6%; with 100% employer match about $100,908 at 4% or $67,272 at 6%. |
| Arconic Corp. Involuntary Separation Plan | - | 1,708 | - | - | - |
| Arconic Corp. Group Benefits Plan II | - | 3,755 | - | - | - |
| Arconic Corp. Group Benefits Plan I | - | 4,076 | - | - | - |
| Arconic Corp. Supplemental Unemployment Benefits | - | 3,003 | - | - | - |
| Arconic Corp. Retiree Group Benefits Plan II | - | 0 | - | - | - |
| Arconic Corp. Health Reimbursement Arrangement Plan for Certain Eligible Retirees | - | 0 | - | - | - |
| Arconic Corp. Medicare Part B Reimbursement Plan for Certain Eligible Retirees | - | 0 | - | - | - |