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Insider Filings - HSING MICHAEL
Last Updated 
10-Nov-09
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HSING MICHAEL: Declared Holdings
Company/RelationshipReportedShares  Ownership
Monolithic Power Systems, Inc.
Officer
NasdaqGS:MPWR
(historical quotes, profile, other insiders) 		28-May-09
25-Aug-09		87,144
   498,566
585,710		  Direct
  Indirect  
  Total

Insider & restricted shareholder transactions reported over the last two years
DateSharesStockTransaction
25-Aug-09 *32,644MPWR Sale at $22.82 per share.
(Proceeds of $744,936)
24-Aug-09 *32,419MPWR Sale at $23.45 per share.
(Proceeds of $760,225)
21-Aug-09 *43,691MPWR Sale at $23.34 per share.
(Proceeds of $1,019,747)
20-Aug-09 *17,496MPWR Sale at $23.23 per share.
(Proceeds of $406,432)
28-May-09 56,826MPWR Option Exercise at $5 - $7.77 per share.
28-May-09 56,826MPWR Sale at $19.99 per share.
(Proceeds of $1,135,951)
27-May-09 8,400MPWR Option Exercise at $5 per share.
(Cost of $42,000)
27-May-09 8,400MPWR Sale at $20.30 - $20.51 per share.
(Proceeds of about $171,000)
29-Aug-08 *3,500MPWR Automatic Sale at $24 - $24.21 per share.
(Proceeds of about $84,000)
28-Aug-08 *3,500MPWR Automatic Sale at $24.02 - $24.13 per share.
(Proceeds of about $84,000)
13-Aug-08 *600MPWR Automatic Sale at $26.25 - $27.65 per share.
(Proceeds of about $16,000)
13-Aug-08 *4,200MPWR Automatic Sale at $24 - $26.17 per share.
(Proceeds of about $105,000)
12-Aug-08 *32,404MPWR Sale at $27.75 - $28.77 per share.
(Proceeds of about $916,000)
12-Aug-08 *16,877MPWR Sale at $27.48 - $27.74 per share.
(Proceeds of about $466,000)
12-Aug-08 *2,400MPWR Automatic Sale at $27.92 - $28.77 per share.
(Proceeds of about $68,000)
12-Aug-08 *5,600MPWR Automatic Sale at $27.27 - $27.91 per share.
(Proceeds of about $155,000)
6-Aug-08 *73,959MPWR Sale at $24.98 - $25.68 per share.
(Proceeds of about $1,873,000)
5-Aug-08 *46,041MPWR Sale at $24.50 - $25.2 per share.
(Proceeds of about $1,144,000)
25-Jul-08 *60,000MPWR Option Exercise at $1.20 per share.
(Cost of $72,000)
10-Jul-08 *3,500MPWR Automatic Sale at $24 per share.
(Proceeds of $84,000)
9-Jul-08 *3,500MPWR Automatic Sale at $24.32 - $24.55 per share.
(Proceeds of about $86,000)
23-May-08 *2,300MPWR Automatic Sale at $23 - $23.2 per share.
(Proceeds of about $53,000)
23-May-08 *6,500MPWR Automatic Sale at $22.58 - $22.99 per share.
(Proceeds of about $148,000)
22-May-08 *2,300MPWR Automatic Sale at $22.78 - $23.2 per share.
(Proceeds of about $53,000)
22-May-08 *6,500MPWR Automatic Sale at $22.30 - $22.77 per share.
(Proceeds of about $146,000)
6-May-08 *7,500MPWR Automatic Sale at $23.87 - $24.04 per share.
(Proceeds of about $180,000)
6-May-08 *7,100MPWR Automatic Sale at $23.30 - $23.86 per share.
(Proceeds of about $167,000)
5-May-08 *14,600MPWR Automatic Sale at $23.66 - $24 per share.
(Proceeds of about $348,000)
23-Apr-08 *8,800MPWR Automatic Sale at $20.69 - $21.33 per share.
(Proceeds of about $185,000)
22-Apr-08 *8,800MPWR Automatic Sale at $20.47 - $21.14 per share.
(Proceeds of about $183,000)
10-Apr-08 *8,800MPWR Automatic Sale at $20.43 - $21.31 per share.
(Proceeds of about $184,000)
9-Apr-08 *4,000MPWR Automatic Sale at $20.43 - $20.83 per share.
(Proceeds of about $83,000)
26-Mar-08 *4,000MPWR Automatic Sale at $18 per share.
(Proceeds of $72,000)
25-Mar-08 *4,000MPWR Automatic Sale at $18 - $18.01 per share.
(Proceeds of about $72,000)
8-Feb-08 30,000MPWR Acquisition (Non Open Market) at $0 per share.
4-Jan-08 *4,000MPWR Automatic Sale at $19.97 - $20.39 per share.
(Proceeds of about $81,000)
3-Jan-08 *8,800MPWR Automatic Sale at $20.69 - $21.34 per share.
(Proceeds of about $185,000)
21-Dec-07 *300MPWR Automatic Sale at $22.50 - $22.56 per share.
(Proceeds of about $6,759)
21-Dec-07 *8,500MPWR Automatic Sale at $21.98 - $22.49 per share.
(Proceeds of about $189,000)
20-Dec-07 *1,100MPWR Automatic Sale at $21.45 - $21.87 per share.
(Proceeds of about $24,000)
20-Dec-07 *7,700MPWR Automatic Sale at $21 - $21.43 per share.
(Proceeds of about $163,000)
7-Dec-07 *8,800MPWR Automatic Sale at $20.75 - $21.18 per share.
(Proceeds of about $184,000)
6-Dec-07 *100MPWR Automatic Sale at $21.39 per share.
(Proceeds of $2,139)
6-Dec-07 *8,700MPWR Automatic Sale at $19.57 - $21.29 per share.
(Proceeds of about $178,000)
20-Nov-07 *300MPWR Automatic Sale at $19.22 - $19.23 per share.
(Proceeds of about $5,767)
20-Nov-07 *3,700MPWR Automatic Sale at $18.14 - $19.21 per share.
(Proceeds of about $69,000)
19-Nov-07 *4,000MPWR Automatic Sale at $19.06 - $19.44 per share.
(Proceeds of about $77,000)
    * Indicates that some (or all) shares are held indirectly (e.g. in a trust, by a spouse, etc.)

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