William Weng-Ping Ko, M.D., a Prof. Corp.
Plan context: William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan
EIN 75-2973843 • San Gabriel, CA • 42 filings • 4 plans
Current Snapshot
Latest Year
2024
2024 Participants
9
2024 Assets
$11,322,769
2024 Contributions
$181,163
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 | 2 | 9 | $11,322,769 | $181,163 | $20,129iApproximate average salary by contribution assumption: employee only about $503,231 at 4% or $335,487 at 6%; with 50% employer match about $335,487 at 4% or $223,658 at 6%; with 100% employer match about $251,615 at 4% or $167,744 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 8 | $6,699,670 | $0 | - |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $4,623,099 | $181,163 | $20,129iApproximate average salary by contribution assumption: employee only about $503,231 at 4% or $335,487 at 6%; with 50% employer match about $335,487 at 4% or $223,658 at 6%; with 100% employer match about $251,615 at 4% or $167,744 at 6%. |
| 2023 | 2 | 9 | $8,514,017 | $130,705 | $14,523iApproximate average salary by contribution assumption: employee only about $363,069 at 4% or $242,046 at 6%; with 50% employer match about $242,046 at 4% or $161,364 at 6%; with 100% employer match about $181,535 at 4% or $121,023 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 8 | $4,636,347 | $20,000 | $2,500iApproximate average salary by contribution assumption: employee only about $62,500 at 4% or $41,667 at 6%; with 50% employer match about $41,667 at 4% or $27,778 at 6%; with 100% employer match about $31,250 at 4% or $20,833 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $3,877,670 | $110,705 | $12,301iApproximate average salary by contribution assumption: employee only about $307,514 at 4% or $205,009 at 6%; with 50% employer match about $205,009 at 4% or $136,673 at 6%; with 100% employer match about $153,757 at 4% or $102,505 at 6%. |
| 2022 | 2 | 9 | $7,487,381 | $178,089 | $19,788iApproximate average salary by contribution assumption: employee only about $494,692 at 4% or $329,794 at 6%; with 50% employer match about $329,794 at 4% or $219,863 at 6%; with 100% employer match about $247,346 at 4% or $164,897 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 8 | $4,368,916 | $100,000 | $12,500iApproximate average salary by contribution assumption: employee only about $312,500 at 4% or $208,333 at 6%; with 50% employer match about $208,333 at 4% or $138,889 at 6%; with 100% employer match about $156,250 at 4% or $104,167 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $3,118,465 | $78,089 | $8,677iApproximate average salary by contribution assumption: employee only about $216,914 at 4% or $144,609 at 6%; with 50% employer match about $144,609 at 4% or $96,406 at 6%; with 100% employer match about $108,457 at 4% or $72,305 at 6%. |
| 2021 | 2 | 9 | $9,342,005 | $135,409 | $15,045iApproximate average salary by contribution assumption: employee only about $376,136 at 4% or $250,757 at 6%; with 50% employer match about $250,757 at 4% or $167,172 at 6%; with 100% employer match about $188,068 at 4% or $125,379 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 8 | $5,640,871 | $50,000 | $6,250iApproximate average salary by contribution assumption: employee only about $156,250 at 4% or $104,167 at 6%; with 50% employer match about $104,167 at 4% or $69,444 at 6%; with 100% employer match about $78,125 at 4% or $52,083 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $3,701,134 | $85,409 | $9,490iApproximate average salary by contribution assumption: employee only about $237,247 at 4% or $158,165 at 6%; with 50% employer match about $158,165 at 4% or $105,443 at 6%; with 100% employer match about $118,624 at 4% or $79,082 at 6%. |
| 2020 | 2 | 9 | $7,832,867 | $127,333 | $14,148iApproximate average salary by contribution assumption: employee only about $353,703 at 4% or $235,802 at 6%; with 50% employer match about $235,802 at 4% or $157,201 at 6%; with 100% employer match about $176,851 at 4% or $117,901 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $4,717,875 | $50,000 | $5,556iApproximate average salary by contribution assumption: employee only about $138,889 at 4% or $92,593 at 6%; with 50% employer match about $92,593 at 4% or $61,728 at 6%; with 100% employer match about $69,444 at 4% or $46,296 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $3,114,992 | $77,333 | $8,593iApproximate average salary by contribution assumption: employee only about $214,814 at 4% or $143,209 at 6%; with 50% employer match about $143,209 at 4% or $95,473 at 6%; with 100% employer match about $107,407 at 4% or $71,605 at 6%. |
| 2019 | 2 | 9 | $6,350,961 | $226,959 | $25,218iApproximate average salary by contribution assumption: employee only about $630,442 at 4% or $420,294 at 6%; with 50% employer match about $420,294 at 4% or $280,196 at 6%; with 100% employer match about $315,221 at 4% or $210,147 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $3,850,405 | $150,000 | $16,667iApproximate average salary by contribution assumption: employee only about $416,667 at 4% or $277,778 at 6%; with 50% employer match about $277,778 at 4% or $185,185 at 6%; with 100% employer match about $208,333 at 4% or $138,889 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $2,500,556 | $76,959 | $8,551iApproximate average salary by contribution assumption: employee only about $213,775 at 4% or $142,517 at 6%; with 50% employer match about $142,517 at 4% or $95,011 at 6%; with 100% employer match about $106,888 at 4% or $71,258 at 6%. |
| 2018 | 2 | 11 | $4,876,074 | $156,845 | $14,259iApproximate average salary by contribution assumption: employee only about $356,466 at 4% or $237,644 at 6%; with 50% employer match about $237,644 at 4% or $158,429 at 6%; with 100% employer match about $178,233 at 4% or $118,822 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $2,968,490 | $82,032 | $9,115iApproximate average salary by contribution assumption: employee only about $227,867 at 4% or $151,911 at 6%; with 50% employer match about $151,911 at 4% or $101,274 at 6%; with 100% employer match about $113,933 at 4% or $75,956 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 11 | $1,907,584 | $74,813 | $6,801iApproximate average salary by contribution assumption: employee only about $170,030 at 4% or $113,353 at 6%; with 50% employer match about $113,353 at 4% or $75,569 at 6%; with 100% employer match about $85,015 at 4% or $56,677 at 6%. |
| 2017 | 2 | 11 | $4,903,019 | $211,929 | $19,266iApproximate average salary by contribution assumption: employee only about $481,657 at 4% or $321,105 at 6%; with 50% employer match about $321,105 at 4% or $214,070 at 6%; with 100% employer match about $240,828 at 4% or $160,552 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 10 | $3,000,828 | $140,000 | $14,000iApproximate average salary by contribution assumption: employee only about $350,000 at 4% or $233,333 at 6%; with 50% employer match about $233,333 at 4% or $155,556 at 6%; with 100% employer match about $175,000 at 4% or $116,667 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 11 | $1,902,191 | $71,929 | $6,539iApproximate average salary by contribution assumption: employee only about $163,475 at 4% or $108,983 at 6%; with 50% employer match about $108,983 at 4% or $72,656 at 6%; with 100% employer match about $81,738 at 4% or $54,492 at 6%. |
| 2016 | 2 | 9 | $3,783,251 | $179,768 | $19,974iApproximate average salary by contribution assumption: employee only about $499,356 at 4% or $332,904 at 6%; with 50% employer match about $332,904 at 4% or $221,936 at 6%; with 100% employer match about $249,678 at 4% or $166,452 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $2,318,237 | $110,000 | $12,222iApproximate average salary by contribution assumption: employee only about $305,556 at 4% or $203,704 at 6%; with 50% employer match about $203,704 at 4% or $135,802 at 6%; with 100% employer match about $152,778 at 4% or $101,852 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $1,465,014 | $69,768 | $7,752iApproximate average salary by contribution assumption: employee only about $193,800 at 4% or $129,200 at 6%; with 50% employer match about $129,200 at 4% or $86,133 at 6%; with 100% employer match about $96,900 at 4% or $64,600 at 6%. |
| 2015 | 2 | 9 | $3,358,685 | $178,641 | $19,849iApproximate average salary by contribution assumption: employee only about $496,225 at 4% or $330,817 at 6%; with 50% employer match about $330,817 at 4% or $220,544 at 6%; with 100% employer match about $248,113 at 4% or $165,408 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $1,987,656 | $110,400 | $12,267iApproximate average salary by contribution assumption: employee only about $306,667 at 4% or $204,444 at 6%; with 50% employer match about $204,444 at 4% or $136,296 at 6%; with 100% employer match about $153,333 at 4% or $102,222 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $1,371,029 | $68,241 | $7,582iApproximate average salary by contribution assumption: employee only about $189,558 at 4% or $126,372 at 6%; with 50% employer match about $126,372 at 4% or $84,248 at 6%; with 100% employer match about $94,779 at 4% or $63,186 at 6%. |
| 2014 | 2 | 10 | $3,108,580 | $176,113 | $17,611iApproximate average salary by contribution assumption: employee only about $440,283 at 4% or $293,522 at 6%; with 50% employer match about $293,522 at 4% or $195,681 at 6%; with 100% employer match about $220,141 at 4% or $146,761 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 10 | $1,868,470 | $100,000 | $10,000iApproximate average salary by contribution assumption: employee only about $250,000 at 4% or $166,667 at 6%; with 50% employer match about $166,667 at 4% or $111,111 at 6%; with 100% employer match about $125,000 at 4% or $83,333 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 10 | $1,240,110 | $76,113 | $7,611iApproximate average salary by contribution assumption: employee only about $190,283 at 4% or $126,855 at 6%; with 50% employer match about $126,855 at 4% or $84,570 at 6%; with 100% employer match about $95,141 at 4% or $63,428 at 6%. |
| 2013 | 2 | 10 | $2,730,904 | $163,919 | $16,392iApproximate average salary by contribution assumption: employee only about $409,798 at 4% or $273,198 at 6%; with 50% employer match about $273,198 at 4% or $182,132 at 6%; with 100% employer match about $204,899 at 4% or $136,599 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 10 | $1,714,068 | $100,000 | $10,000iApproximate average salary by contribution assumption: employee only about $250,000 at 4% or $166,667 at 6%; with 50% employer match about $166,667 at 4% or $111,111 at 6%; with 100% employer match about $125,000 at 4% or $83,333 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 10 | $1,016,836 | $63,919 | $6,392iApproximate average salary by contribution assumption: employee only about $159,798 at 4% or $106,532 at 6%; with 50% employer match about $106,532 at 4% or $71,021 at 6%; with 100% employer match about $79,899 at 4% or $53,266 at 6%. |
| 2012 | 2 | 11 | $1,930,315 | $187,143 | $17,013iApproximate average salary by contribution assumption: employee only about $425,325 at 4% or $283,550 at 6%; with 50% employer match about $283,550 at 4% or $189,033 at 6%; with 100% employer match about $212,663 at 4% or $141,775 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 11 | $1,236,275 | $134,538 | $12,231iApproximate average salary by contribution assumption: employee only about $305,768 at 4% or $203,845 at 6%; with 50% employer match about $203,845 at 4% or $135,897 at 6%; with 100% employer match about $152,884 at 4% or $101,923 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 11 | $694,040 | $52,605 | $4,782iApproximate average salary by contribution assumption: employee only about $119,557 at 4% or $79,705 at 6%; with 50% employer match about $79,705 at 4% or $53,136 at 6%; with 100% employer match about $59,778 at 4% or $39,852 at 6%. |
| 2011 | 2 | 11 | $1,519,346 | $119,400 | $10,855iApproximate average salary by contribution assumption: employee only about $271,364 at 4% or $180,909 at 6%; with 50% employer match about $180,909 at 4% or $120,606 at 6%; with 100% employer match about $135,682 at 4% or $90,455 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 11 | $973,447 | $70,462 | $6,406iApproximate average salary by contribution assumption: employee only about $160,141 at 4% or $106,761 at 6%; with 50% employer match about $106,761 at 4% or $71,174 at 6%; with 100% employer match about $80,070 at 4% or $53,380 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 10 | $545,899 | $48,938 | $4,894iApproximate average salary by contribution assumption: employee only about $122,345 at 4% or $81,563 at 6%; with 50% employer match about $81,563 at 4% or $54,376 at 6%; with 100% employer match about $61,173 at 4% or $40,782 at 6%. |
| 2010 | 2 | 12 | $1,413,906 | $150,000 | $12,500iApproximate average salary by contribution assumption: employee only about $312,500 at 4% or $208,333 at 6%; with 50% employer match about $208,333 at 4% or $138,889 at 6%; with 100% employer match about $156,250 at 4% or $104,167 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 12 | $917,132 | $150,000 | $12,500iApproximate average salary by contribution assumption: employee only about $312,500 at 4% or $208,333 at 6%; with 50% employer match about $208,333 at 4% or $138,889 at 6%; with 100% employer match about $156,250 at 4% or $104,167 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 4 | $496,774 | $0 | - |
| 2009 | 3 | 9 | $1,091,308 | $140,000 | $15,556iApproximate average salary by contribution assumption: employee only about $388,889 at 4% or $259,259 at 6%; with 50% employer match about $259,259 at 4% or $172,840 at 6%; with 100% employer match about $194,444 at 4% or $129,630 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 9 | $651,862 | $140,000 | $15,556iApproximate average salary by contribution assumption: employee only about $388,889 at 4% or $259,259 at 6%; with 50% employer match about $259,259 at 4% or $172,840 at 6%; with 100% employer match about $194,444 at 4% or $129,630 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 9 | $439,446 | - | - |
| WILLIAM WENG-PING KO, M.D., A PROF. CORP. PROFIT SHARING PLAN | - | - | - | - | - |
| 2008 | 2 | 7 | $691,167 | $150,000 | $21,429iApproximate average salary by contribution assumption: employee only about $535,714 at 4% or $357,143 at 6%; with 50% employer match about $357,143 at 4% or $238,095 at 6%; with 100% employer match about $267,857 at 4% or $178,571 at 6%. |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 7 | $362,057 | $150,000 | $21,429iApproximate average salary by contribution assumption: employee only about $535,714 at 4% or $357,143 at 6%; with 50% employer match about $357,143 at 4% or $238,095 at 6%; with 100% employer match about $267,857 at 4% or $178,571 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 7 | $329,110 | - | - |
| 2007 | 2 | 5 | $0 | $0 | - |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 5 | - | - | - |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 5 | - | - | - |
| 2006 | 2 | 6 | $588,295 | $146,595 | $24,433iApproximate average salary by contribution assumption: employee only about $610,813 at 4% or $407,208 at 6%; with 50% employer match about $407,208 at 4% or $271,472 at 6%; with 100% employer match about $305,406 at 4% or $203,604 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 4 | $441,700 | - | - |
| William Weng-Ping Ko, M.D., a Prof. Corp. Defined Benefit Pension Plan | - | 6 | $146,595 | $146,595 | $24,433iApproximate average salary by contribution assumption: employee only about $610,813 at 4% or $407,208 at 6%; with 50% employer match about $407,208 at 4% or $271,472 at 6%; with 100% employer match about $305,406 at 4% or $203,604 at 6%. |
| 2005 | 1 | 5 | $393,376 | $51,030 | $10,206iApproximate average salary by contribution assumption: employee only about $255,150 at 4% or $170,100 at 6%; with 50% employer match about $170,100 at 4% or $113,400 at 6%; with 100% employer match about $127,575 at 4% or $85,050 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 5 | $393,376 | $51,030 | $10,206iApproximate average salary by contribution assumption: employee only about $255,150 at 4% or $170,100 at 6%; with 50% employer match about $170,100 at 4% or $113,400 at 6%; with 100% employer match about $127,575 at 4% or $85,050 at 6%. |
| 2004 | 2 | 5 | $314,738 | $188,898 | $37,780iApproximate average salary by contribution assumption: employee only about $944,490 at 4% or $629,660 at 6%; with 50% employer match about $629,660 at 4% or $419,773 at 6%; with 100% employer match about $472,245 at 4% or $314,830 at 6%. |
| WILLIAM WENG-PING KO , M.D., A PROF. CORP. PROFIT SHARING PLAN | - | 5 | $314,738 | $188,898 | $37,780iApproximate average salary by contribution assumption: employee only about $944,490 at 4% or $629,660 at 6%; with 50% employer match about $629,660 at 4% or $419,773 at 6%; with 100% employer match about $472,245 at 4% or $314,830 at 6%. |
| WILLIAM WENG-PING KO, M.D., A PROF. CORP. TARGET BENEFIT PENSION PLAN | - | 0 | - | - | - |