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"Insiders might sell their shares for any number of reasons, but they buy them for only one:
they think the price will rise" - Peter Lynch ==>> What is insider trading>> |

| Transaction & Date | Reported Date |
Company | Symbol | Insider Relationship |
Shares Traded | Average Price | Total Amount |
Shares Ownership |
Filing |
| 2008-09-24 Sale |
2008-09-24 4:53 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 1,250 | $19.31 | $24,132 | 495,964 (Indirect) | View |
| 2008-09-19 Sale | 2008-09-19 6:17 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 1,250 | $19.77 | $24,710 | 497,214 (Indirect) |
View |
| 2008-09-15 Sale | 2008-09-16 2:47 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Ueunten Paul (Sr. V.P. Design Engineering) | 5,000 | $19.45 | $97,250 | 60,248 (Direct) | View |
| 2008-09-10 Sale |
2008-09-10 6:45 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 3,750 | $20.42 | $76,593 | 498,464 (Indirect) | View |
| 2008-09-05 Sale | 2008-09-08 2:09 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 400 | $21.28 | $8,514 | 502,214 (Indirect) |
View |
| 2008-09-05 Sale |
2008-09-08 2:08 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 9,600 | $21.06 | $202,164 | 502,614 (Indirect) |
View |
| 2008-09-03 Sale |
2008-09-03 4:54 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Neely Rick (Sr. VP and CFO) | 3,000 | $25 | $75,000 | 17,801 (Direct) | View |
| 2008-08-29 Sale | 2008-08-29 5:19 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael (CEO Director) | 3,500 | $24.01 | $84,022 | 624,816 (Indirect) |
View |
| 2008-08-28 Sale | 2008-08-29 2:27 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael (CEO Director) | 3,500 | $24.07 | $84,258 | 628,316 (Indirect) |
View |
| 2008-08-27 Sale | 2008-08-28 5:43 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 2,800 | $23.56 | $65,970 | 512,214 (Indirect) | View |
| 2008-08-27 Sale | 2008-08-28 5:43 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 7,200 | $23.35 | $168,118 | 515,014 (Indirect) |
View |
| 2008-08-22 Sale |
2008-08-25 5:29 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Ueunten Paul (Sr. V.P. Design Engineering) | 20,000 | $23.13 | $462,540 | 60,248 (Direct) |
View |
| 2008-08-21 Sale | 2008-08-21 6:05 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 2,639 | $23.1 | $60,964 | 3,710 (Indirect) | View |
| 2008-08-21 Sale |
2008-08-21 6:04 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 7,361 | $22.91 | $168,651 | 6,349 (Indirect) |
View |
| 2008-08-15- -2008-08-18 Sale |
2008-08-19 1:15 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT (Director) | 21,216 | $25.3 | $536,674 | 51,388 (Indirect) |
View |
| 2008-08-14 Sale | 2008-08-14 4:58 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT (Director) | 20,000 | $26.57 | $531,442 | 371,819 (Indirect) | View |
| 2008-08-13 Sale | 2008-08-14 2:19 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT (Director) | 2,183 | $27.65 | $60,360 | 391,819 (Indirect) | View |
| 2008-08-13 Sale |
2008-08-14 2:14 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 950 | $27.53 | $26,157 | 13,710 (Indirect) |
View |
| 2008-08-13 Sale |
2008-08-14 2:11 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 4,400 | $25.93 | $114,090 | 14,660 (Indirect) |
View |
| 2008-08-13 Sale | 2008-08-14 2:01 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 4,650 | $25.48 | $118,480 | 19,060 (Indirect) | View |
| 2008-08-13 Sale | 2008-08-13 6:52 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael (CEO Director) | 600 | $26.73 | $16,040 | 631,816 (Indirect) |
View |
| 2008-08-12 Sale |
2008-08-13 5:54 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | PADVAL UMESH (Director) | 5,000 | $28.77 | $143,850 | 0 (Direct) | View |
| 2008-08-07 Sale | 2008-08-08 11:53 am | MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 15,000 | $26.22 | $393,358 | 0 (Direct) |
View |
| 2005-09-06 Sale | 2005-09-08 7:31 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHRISTOFFERSEN TIM (CFO) | 12,500 | $0.001 | $12 | 12,500 (Direct) | View |
| 2004-11-24 Sale |
2004-11-29 12:04 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | BAVP, L.P. (10% owner) | 500,000 | $7.905 | $3,952,500 | 2,298,185 (Direct) | View |
| 2004-11-24 Sale |
2004-11-24 4:53 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 546,274 | $7.905 | $4,318,296 | 1,974,690 (Indirect) |
View |
| Transaction & Date |
Reported Date | Company | Symbol | Insider Relationship |
Shares Traded | Average Price | Total Amount |
Shares Ownership | Filing |
| 2008-10-27 Tax Withholding | 2008-10-28 8:20 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice (Sr. V.P.of Sales and Marketing) | 4,493 | $14.1 | $63,351 | 65,611 (Direct) |
View |
| 2008-08-04 Tax Withholding(A) |
2008-10-28 6:03 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Chiocchi Adriana (Senior V.P. and CLO) | 2,067 | $25.12 | $51,923 | 19,433 (Direct) | View |
| 2008-08-04 Tax Withholding(A) | 2008-10-28 6:01 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Neely Rick (Sr. VP and CFO) | 1,708 | $25.12 | $42,905 | 17,792 (Direct) |
View |
| 2008-08-04 Tax Withholding(A) |
2008-10-28 5:57 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice (Sr. V.P.of Sales and Marketing) | 1,708 | $25.12 | $42,905 | 73,155 (Direct) |
View |
| 2008-09-15 Exercise | 2008-09-16 2:47 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Ueunten Paul (Sr. V.P. Design Engineering) | 5,000 | $1.2 | $6,000 | 65,248 (Direct) | View |
| 2008-09-03 Exercise | 2008-09-03 4:54 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Neely Rick (Sr. VP and CFO) | 3,000 | $8.41 | $25,230 | 20,801 (Direct) | View |
| 2008-08-20 Other | 2008-08-28 5:43 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | Moyer James C (Chief IC Design Engineer Director) | 1,037,008 | $0 | $0 | 532,214 (Indirect) |
View |
| 2008-08-12 Exercise | 2008-08-13 5:54 pm |
MONOLITHIC POWER SYSTEMS INC | MPWR | PADVAL UMESH (Director) | 5,000 | $1.2 | $6,000 | 5,000 (Direct) | View |
| 2008-08-07 Exercise | 2008-08-08 11:53 am | MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 15,000 | $7.51 | $112,650 | 100 (Direct) | View |
| 2006-03-14- -2006-08-15 Other |
2006-10-30 6:44 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | Tseng Saria (VP & Legal Counsel) | 3,289 | $6.925 | $22,778 | 3,289 (Direct) | View |
| 2004-11-24 Purchase | 2004-11-29 12:04 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | BAVP, L.P. (10% owner) | 2,798,185 | $0 | $0 | 2,798,185 (Direct) | View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 4,668,613 | $0 | $0 | 0 (Indirect) | View |
| Transaction & Date | Reported Date | Exercisable Expiration | Company | Symbol | Insider Relationship | Shares Traded | Conversion Price |
Shares Ownership | Filing |
| 2008-10-28 Option Award | 2008-10-28 8:20 pm | 2010-10-28 2015-10-28 | MONOLITHIC POWER SYSTEMS INC | MPWR | Sciammas Maurice (Sr. V.P.of Sales and Marketing) | 90,000 | $15.74 | 90,000 (Direct) | View |
| 2008-10-28 Option Award | 2008-10-28 8:18 pm |
2010-10-28 2015-10-28 |
MONOLITHIC POWER SYSTEMS INC | MPWR | Ueunten Paul (Sr. V.P. Design Engineering) | 70,000 | $15.74 | 70,000 (Direct) |
View |
| 2008-10-28 Option Award |
2008-10-28 8:16 pm |
2010-10-28 2015-10-28 | MONOLITHIC POWER SYSTEMS INC | MPWR | Neely Rick (Sr. VP and CFO) | 50,000 | $15.74 | 50,000 (Direct) |
View |
| 2008-10-28 Option Award |
2008-10-28 8:15 pm | 2010-10-28 2015-10-28 | MONOLITHIC POWER SYSTEMS INC | MPWR | Chiocchi Adriana (Senior V.P. and CLO) | 50,000 | $15.74 | 50,000 (Direct) | View |
| 2008-10-28 Option Award |
2008-10-28 8:13 pm | 2010-10-28 2015-10-28 |
MONOLITHIC POWER SYSTEMS INC | MPWR | Hsing Michael (CEO Director) | 300,000 | $15.74 | 300,000 (Direct) | View |
| 2008-10-28 Option Award |
2008-10-28 8:11 pm | 2010-10-28 2015-10-28 | MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming (Pres. of MPS Asia Operations) | 90,000 | $15.74 | 90,000 (Direct) | View |
| 2008-10-28 Option Award | 2008-10-28 8:11 pm |
2010-10-28 2015-10-28 |
MONOLITHIC POWER SYSTEMS INC | MPWR | Xiao Deming (Pres. of MPS Asia Operations) | 10,000 | $15.74 | 10,000 (Indirect) | View |
| 2008-09-15 Exercise |
2008-09-16 2:47 pm | 2003-07-15 2012-07-17 | MONOLITHIC POWER SYSTEMS INC | MPWR | Ueunten Paul (Sr. V.P. Design Engineering) | 5,000 | $1.2 | 33,000 (Direct) | View |
| 2008-09-03 Exercise | 2008-09-03 4:54 pm |
2006-09-06 2015-09-22 | MONOLITHIC POWER SYSTEMS INC | MPWR | Neely Rick (Sr. VP and CFO) | 3,000 | $8.41 | 85,940 (Direct) |
View |
| 2008-08-12 Exercise |
2008-08-13 5:54 pm |
2004-04-24 2013-04-24 | MONOLITHIC POWER SYSTEMS INC | MPWR | PADVAL UMESH (Director) | 5,000 | $1.2 | 9,097 (Direct) | View |
| 2008-08-07 Exercise | 2008-08-08 11:53 am |
2006-06-02 2015-06-02 |
MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 2,100 | $7.51 | 12,900 (Direct) |
View |
| 2008-08-07 Exercise | 2008-08-08 11:53 am | 2006-06-02 2015-06-02 | MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 9,900 | $7.51 | 3,000 (Direct) |
View |
| 2008-08-07 Exercise |
2008-08-08 11:53 am |
2006-06-02 2015-06-02 |
MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 2,900 | $7.51 | 100 (Direct) |
View |
| 2008-08-07 Exercise |
2008-08-08 11:53 am |
2006-06-02 2015-06-02 |
MONOLITHIC POWER SYSTEMS INC | MPWR | EARHART ALAN L (Director) | 100 | $7.51 | 0 (Direct) | View |
| 2008-05-22 Option Award | 2008-05-22 7:27 pm | 2009-05-22 2015-05-22 |
MONOLITHIC POWER SYSTEMS INC | MPWR | SMITH- PILKINGTON KAREN A (Director) | 15,000 | $23.05 | 15,000 (Direct) |
View |
| 2008-05-22 Option Award | 2008-05-22 7:05 pm |
2009-05-22 2015-05-22 |
MONOLITHIC POWER SYSTEMS INC | MPWR | Lee Victor K (Director) | 15,000 | $23.05 | 15,000 (Direct) |
View |
| 2008-05-22 Option Award |
2008-05-22 7:01 pm | 2009-05-22 2015-05-22 | MONOLITHIC POWER SYSTEMS INC | MPWR | MCBURNIE DOUGLAS M (Director) | 15,000 | $23.05 | 15,000 (Direct) |
View |
| 2006-06-21 Option Award | 2006-06-23 12:52 pm |
2007-06-21 2016-06-21 |
MONOLITHIC POWER SYSTEMS INC | MPWR | Jones Jim J III (Director) | 15,000 | $12.16 | 15,000 (Direct) | View |
| 2004-11-24 Purchase | 2004-11-29 12:04 pm |
N/A N/A |
MONOLITHIC POWER SYSTEMS INC | MPWR | BAVP, L.P. (10% owner) | 2,798,185 | $0 | 0 (Direct) | View |
| 2004-11-24 Purchase | 2004-11-24 4:53 pm | N/A 1998-08-08 | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 130,955 | $0 | 0 (Indirect) | View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm |
N/A 1998-08-08 | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 30,386 | $0 | 0 (Indirect) |
View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm | N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 546,716 | $0 | 0 (Indirect) |
View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm | N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 130,955 | $0 | 0 (Indirect) |
View |
| 2004-11-24 Purchase | 2004-11-24 4:53 pm | N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 130,955 | $0 | 0 (Indirect) |
View |
| 2004-11-24 Purchase | 2004-11-24 4:53 pm | N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 2,520,964 | $0 | 0 (Indirect) | View |
| 2004-11-24 Purchase | 2004-11-24 4:53 pm | N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 733,534 | $0 | 0 (Indirect) | View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm | N/A 1998-08-08 | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 130,955 | $0 | 0 (Indirect) | View |
| 2004-11-24 Purchase |
2004-11-24 4:53 pm | N/A 1998-08-08 | MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 182,238 | $0 | 0 (Indirect) | View |
| 2004-11-24 Purchase | 2004-11-24 4:53 pm |
N/A 1998-08-08 |
MONOLITHIC POWER SYSTEMS INC | MPWR | CHANG KUO WEI HERBERT FOREFRONT VENTURE PARTNERS LP Forefront Associates LLC INVESTAR CAPITAL INC INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC INVESTAR BURGEON VENTURE CAPITAL INC INVESTAR DAYSPRING VENTURE CAPITAL INC InveStar Semiconductor Development Fund Inc InveStar Semiconductor Development Fund Inc (II) LDC TAI KENNETH (Director 10% owner) | 130,955 | $0 | 0 (Indirect) | View |
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