Alexion Pharmaceuticals, Inc.
Plan context: Alexion Pharmaceuticals Inc. 401K Plan
EIN 13-3648318 • 56 filings • 8 plans
Current Snapshot
Latest Year
2020
2020 Participants
2,128
2020 Assets
$397,860,247
2020 Contributions
$80,365,628
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 |
|---|---|---|---|---|---|
| 2020 | 4 | 2,128 | $397,860,247 | $80,365,628 | $37,766iApproximate average salary by contribution assumption: employee only about $944,145 at 4% or $629,430 at 6%; with 50% employer match about $629,430 at 4% or $419,620 at 6%; with 100% employer match about $472,073 at 4% or $314,715 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 2,111 | $397,860,247 | $80,365,628 | $38,070iApproximate average salary by contribution assumption: employee only about $951,748 at 4% or $634,499 at 6%; with 50% employer match about $634,499 at 4% or $422,999 at 6%; with 100% employer match about $475,874 at 4% or $317,249 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 2,128 | - | - | - |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 2,128 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 604 | - | - | - |
| 2019 | 4 | 2,736 | $299,946,230 | $55,573,984 | $20,312iApproximate average salary by contribution assumption: employee only about $507,803 at 4% or $338,535 at 6%; with 50% employer match about $338,535 at 4% or $225,690 at 6%; with 100% employer match about $253,902 at 4% or $169,268 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,765 | $299,946,230 | $55,573,984 | $31,487iApproximate average salary by contribution assumption: employee only about $787,167 at 4% or $524,778 at 6%; with 50% employer match about $524,778 at 4% or $349,852 at 6%; with 100% employer match about $393,583 at 4% or $262,389 at 6%. |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 2,736 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 547 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,716 | - | - | - |
| 2018 | 4 | 2,814 | $221,634,543 | $42,133,821 | $14,973iApproximate average salary by contribution assumption: employee only about $374,323 at 4% or $249,549 at 6%; with 50% employer match about $249,549 at 4% or $166,366 at 6%; with 100% employer match about $187,162 at 4% or $124,774 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,514 | $221,634,543 | $42,133,821 | $27,829iApproximate average salary by contribution assumption: employee only about $695,737 at 4% or $463,825 at 6%; with 50% employer match about $463,825 at 4% or $309,216 at 6%; with 100% employer match about $347,868 at 4% or $231,912 at 6%. |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 2,814 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 307 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,577 | - | - | - |
| 2017 | 4 | 2,663 | $233,567,643 | $46,973,692 | $17,639iApproximate average salary by contribution assumption: employee only about $440,985 at 4% or $293,990 at 6%; with 50% employer match about $293,990 at 4% or $195,993 at 6%; with 100% employer match about $220,492 at 4% or $146,995 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,161 | $233,567,643 | $46,973,692 | $40,460iApproximate average salary by contribution assumption: employee only about $1,011,492 at 4% or $674,328 at 6%; with 50% employer match about $674,328 at 4% or $449,552 at 6%; with 100% employer match about $505,746 at 4% or $337,164 at 6%. |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 2,663 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 400 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,370 | - | - | - |
| 2016 | 4 | 3,143 | $182,177,343 | $45,055,712 | $14,335iApproximate average salary by contribution assumption: employee only about $358,381 at 4% or $238,921 at 6%; with 50% employer match about $238,921 at 4% or $159,281 at 6%; with 100% employer match about $179,191 at 4% or $119,460 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,750 | $182,177,343 | $45,055,712 | $25,746iApproximate average salary by contribution assumption: employee only about $643,653 at 4% or $429,102 at 6%; with 50% employer match about $429,102 at 4% or $286,068 at 6%; with 100% employer match about $321,827 at 4% or $214,551 at 6%. |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 3,143 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 391 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,676 | - | - | - |
| 2015 | 4 | 2,610 | $142,597,525 | $46,473,167 | $17,806iApproximate average salary by contribution assumption: employee only about $445,145 at 4% or $296,764 at 6%; with 50% employer match about $296,764 at 4% or $197,842 at 6%; with 100% employer match about $222,573 at 4% or $148,382 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,642 | $142,597,525 | $46,473,167 | $28,303iApproximate average salary by contribution assumption: employee only about $707,570 at 4% or $471,713 at 6%; with 50% employer match about $471,713 at 4% or $314,475 at 6%; with 100% employer match about $353,785 at 4% or $235,857 at 6%. |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 2,610 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 399 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,626 | - | - | - |
| 2014 | 4 | 1,828 | $111,639,815 | $28,027,990 | $15,333iApproximate average salary by contribution assumption: employee only about $383,315 at 4% or $255,543 at 6%; with 50% employer match about $255,543 at 4% or $170,362 at 6%; with 100% employer match about $191,657 at 4% or $127,772 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,269 | $111,639,815 | $28,027,990 | $22,087iApproximate average salary by contribution assumption: employee only about $552,167 at 4% or $368,111 at 6%; with 50% employer match about $368,111 at 4% or $245,407 at 6%; with 100% employer match about $276,083 at 4% or $184,056 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,265 | - | - | - |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 1,828 | - | - | - |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 394 | - | - | - |
| 2013 | 4 | 1,031 | $86,960,523 | $20,751,352 | $20,127iApproximate average salary by contribution assumption: employee only about $503,185 at 4% or $335,457 at 6%; with 50% employer match about $335,457 at 4% or $223,638 at 6%; with 100% employer match about $251,593 at 4% or $167,728 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 1,031 | $86,960,523 | $20,751,352 | $20,127iApproximate average salary by contribution assumption: employee only about $503,185 at 4% or $335,457 at 6%; with 50% employer match about $335,457 at 4% or $223,638 at 6%; with 100% employer match about $251,593 at 4% or $167,728 at 6%. |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 426 | - | - | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 1,029 | - | - | - |
| Alexion Pharmaceuticals Inc. Business Travel Accident Plan | - | 1,029 | - | - | - |
| 2012 | 2 | 814 | $56,595,352 | $13,242,589 | $16,269iApproximate average salary by contribution assumption: employee only about $406,713 at 4% or $271,142 at 6%; with 50% employer match about $271,142 at 4% or $180,762 at 6%; with 100% employer match about $203,357 at 4% or $135,571 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 724 | $56,595,352 | $13,242,589 | $18,291iApproximate average salary by contribution assumption: employee only about $457,272 at 4% or $304,848 at 6%; with 50% employer match about $304,848 at 4% or $203,232 at 6%; with 100% employer match about $228,636 at 4% or $152,424 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 814 | - | - | - |
| 2011 | 2 | 617 | $39,771,050 | $8,628,520 | $13,985iApproximate average salary by contribution assumption: employee only about $349,616 at 4% or $233,077 at 6%; with 50% employer match about $233,077 at 4% or $155,385 at 6%; with 100% employer match about $174,808 at 4% or $116,539 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 583 | $39,771,050 | $8,628,520 | $14,800iApproximate average salary by contribution assumption: employee only about $370,005 at 4% or $246,670 at 6%; with 50% employer match about $246,670 at 4% or $164,447 at 6%; with 100% employer match about $185,003 at 4% or $123,335 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 617 | - | - | - |
| 2010 | 2 | 513 | $33,361,197 | $7,564,277 | $14,745iApproximate average salary by contribution assumption: employee only about $368,629 at 4% or $245,753 at 6%; with 50% employer match about $245,753 at 4% or $163,835 at 6%; with 100% employer match about $184,315 at 4% or $122,876 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 503 | $33,361,197 | $7,564,277 | $15,038iApproximate average salary by contribution assumption: employee only about $375,958 at 4% or $250,639 at 6%; with 50% employer match about $250,639 at 4% or $167,092 at 6%; with 100% employer match about $187,979 at 4% or $125,319 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 513 | - | - | - |
| 2009 | 2 | 474 | $24,855,763 | $6,163,009 | $13,002iApproximate average salary by contribution assumption: employee only about $325,053 at 4% or $216,702 at 6%; with 50% employer match about $216,702 at 4% or $144,468 at 6%; with 100% employer match about $162,527 at 4% or $108,351 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 474 | $24,855,763 | $6,163,009 | $13,002iApproximate average salary by contribution assumption: employee only about $325,053 at 4% or $216,702 at 6%; with 50% employer match about $216,702 at 4% or $144,468 at 6%; with 100% employer match about $162,527 at 4% or $108,351 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 463 | - | - | - |
| 2008 | 2 | 378 | $15,085,211 | $4,885,921 | $12,926iApproximate average salary by contribution assumption: employee only about $323,143 at 4% or $215,429 at 6%; with 50% employer match about $215,429 at 4% or $143,619 at 6%; with 100% employer match about $161,571 at 4% or $107,714 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 378 | $15,085,211 | $4,885,921 | $12,926iApproximate average salary by contribution assumption: employee only about $323,143 at 4% or $215,429 at 6%; with 50% employer match about $215,429 at 4% or $143,619 at 6%; with 100% employer match about $161,571 at 4% or $107,714 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 364 | - | - | - |
| 2007 | 2 | 348 | $19,718,165 | $4,629,720 | $13,304iApproximate average salary by contribution assumption: employee only about $332,595 at 4% or $221,730 at 6%; with 50% employer match about $221,730 at 4% or $147,820 at 6%; with 100% employer match about $166,297 at 4% or $110,865 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 348 | $19,718,165 | $4,629,720 | $13,304iApproximate average salary by contribution assumption: employee only about $332,595 at 4% or $221,730 at 6%; with 50% employer match about $221,730 at 4% or $147,820 at 6%; with 100% employer match about $166,297 at 4% or $110,865 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 340 | - | - | - |
| 2006 | 2 | 243 | $14,582,557 | $1,185,579 | $4,879iApproximate average salary by contribution assumption: employee only about $121,973 at 4% or $81,315 at 6%; with 50% employer match about $81,315 at 4% or $54,210 at 6%; with 100% employer match about $60,987 at 4% or $40,658 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 236 | $14,582,557 | $1,185,579 | $5,024iApproximate average salary by contribution assumption: employee only about $125,591 at 4% or $83,727 at 6%; with 50% employer match about $83,727 at 4% or $55,818 at 6%; with 100% employer match about $62,795 at 4% or $41,864 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 243 | - | - | - |
| 2005 | 2 | 243 | $0 | $0 | - |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 231 | - | - | - |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 243 | - | - | - |
| 2004 | 2 | 212 | $9,450,156 | $1,879,788 | $8,867iApproximate average salary by contribution assumption: employee only about $221,673 at 4% or $147,782 at 6%; with 50% employer match about $147,782 at 4% or $98,521 at 6%; with 100% employer match about $110,837 at 4% or $73,891 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 212 | $9,450,156 | $1,879,788 | $8,867iApproximate average salary by contribution assumption: employee only about $221,673 at 4% or $147,782 at 6%; with 50% employer match about $147,782 at 4% or $98,521 at 6%; with 100% employer match about $110,837 at 4% or $73,891 at 6%. |
| The Alexion Pharmaceuticals Inc. Flexible Spending Accounts | - | 209 | - | - | - |
| 2003 | 2 | 200 | $6,796,822 | $1,482,505 | $7,413iApproximate average salary by contribution assumption: employee only about $185,313 at 4% or $123,542 at 6%; with 50% employer match about $123,542 at 4% or $82,361 at 6%; with 100% employer match about $92,657 at 4% or $61,771 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 200 | $6,796,822 | $1,482,505 | $7,413iApproximate average salary by contribution assumption: employee only about $185,313 at 4% or $123,542 at 6%; with 50% employer match about $123,542 at 4% or $82,361 at 6%; with 100% employer match about $92,657 at 4% or $61,771 at 6%. |
| Alexion Pharmaceuticals Inc. Group Insurance Plan | - | 187 | - | - | - |
| 2002 | 1 | 187 | $0 | $0 | - |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 187 | - | - | - |
| 2001 | 1 | 159 | $3,235,388 | $1,125,950 | $7,081iApproximate average salary by contribution assumption: employee only about $177,036 at 4% or $118,024 at 6%; with 50% employer match about $118,024 at 4% or $78,683 at 6%; with 100% employer match about $88,518 at 4% or $59,012 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 159 | $3,235,388 | $1,125,950 | $7,081iApproximate average salary by contribution assumption: employee only about $177,036 at 4% or $118,024 at 6%; with 50% employer match about $118,024 at 4% or $78,683 at 6%; with 100% employer match about $88,518 at 4% or $59,012 at 6%. |
| 2000 | 1 | 138 | $0 | $0 | - |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 138 | - | - | - |
| 1999 | 1 | 97 | $2,359,752 | $574,023 | $5,918iApproximate average salary by contribution assumption: employee only about $147,944 at 4% or $98,629 at 6%; with 50% employer match about $98,629 at 4% or $65,753 at 6%; with 100% employer match about $73,972 at 4% or $49,315 at 6%. |
| Alexion Pharmaceuticals Inc. 401K Plan | - | 97 | $2,359,752 | $574,023 | $5,918iApproximate average salary by contribution assumption: employee only about $147,944 at 4% or $98,629 at 6%; with 50% employer match about $98,629 at 4% or $65,753 at 6%; with 100% employer match about $73,972 at 4% or $49,315 at 6%. |