Monolithic Power Systems, Inc. Forms 3, 4 and 5: Stock Options Statements of beneficial ownership filed with the SEC by officers, directors and 10% owners: 9 rows in 2016. Transaction codes are the SEC's. Shares and prices are split-adjusted; the as-filed figure is underneath.
2016-11-22: Reporting owner Lee Victor K ; Form 4 ; Security Non-Qualified Stock Option (Right to Buy) ; Transaction M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 . 2016-11-22: Reporting owner Lee Victor K ; Form 4 ; Security Non-Qualified Stock Option (Right to Buy) ; Transaction M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 . 2016-11-21: Reporting owner Lee Victor K ; Form 4 ; Security Non-Qualified Stock Option (Right to Buy) ; Transaction M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 . 2016-11-18: Reporting owner Lee Victor K ; Form 4 ; Security Non-Qualified Stock Option (Right to Buy) ; Transaction M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 . MPWR insiders transactions against the stock price 1Y 5Y 10Y 20Y MAX
Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close
$814.11 $952.09 $1,113.45 $1,302.16 $1,522.84 $1,780.94 2025-11-06 2026-11-06 $293.74 $423.74 $611.28 $881.81 $1,272.08 $1,835.07 2021-11-08 2026-11-06 $72.68 $139.85 $269.12 $517.89 $996.60 $1,917.80 2016-11-07 2026-11-06 $7.35 $22.73 $70.28 $217.28 $671.73 $2,076.72 2006-11-06 2026-11-06 $5.57 $18.20 $59.47 $194.39 $635.37 $2,076.72 2004-11-19 2026-11-06 2005-04-26: 2 award or grants at $8.05 filed · Value $523.25K — Xiao Deming 2006-01-17: 2 award or grants at $16.00 filed · Value $240.00K — Xiao Deming 2006-05-11: 1 option exercise at $17.26 filed · Value $172.60K — Xiao Deming 2006-06-21: 4 award or grants at $12.16 filed · Value $729.60K — Jones Jim J III, PADVAL UMESH, EARHART ALAN L and 1 more 2006-10-26: 4 award or grants at $11.85 filed · Value $3.91M — Xiao Deming, Sciammas Maurice, Chiocchi Adriana and 1 more 2007-02-22: 2 option exercises at $13.64 filed · Value $749.50K — EARHART ALAN L, Hsing Michael 2007-02-23: 2 option exercises at $13.36 filed · Value $868.40K — Hsing Michael 2007-02-26: 4 option exercises at $13.42 filed · Value $1.14M — Xiao Deming, Hsing Michael 2007-02-27: 1 award or grant at $12.99 filed · Value $1.62M — Hsing Michael 2007-02-27: 2 option exercises at $13.01 filed · Value $910.70K — Hsing Michael 2007-02-28: 2 option exercises at $12.81 filed · Value $962.25K — Hsing Michael 2007-05-17: 1 option exercise at $16.98 close — EARHART ALAN L 2007-05-24: 6 award or grants at $16.97 close — SMITH- PILKINGTON KAREN A, MCBURNIE DOUGLAS M, PADVAL UMESH and 3 more 2007-05-29: 4 option exercises at $17.05 close — Moyer James C, PADVAL UMESH 2007-05-30: 1 option exercise at $16.85 close — Moyer James C 2007-05-31: 1 option exercise at $16.92 close — Moyer James C 2007-08-03: 7 award or grants at $18.77 filed · Value $5.61M — Hsing Michael, Sciammas Maurice, Moyer James C and 3 more 2007-08-03: 1 option exercise at $18.75 filed · Value $65.63K — Neely Rick 2007-08-14: 1 option exercise at $18.52 filed · Value $259.28K — Xiao Deming 2007-08-15: 1 option exercise at $19.12 filed · Value $46.96K — Xiao Deming 2007-08-17: 1 option exercise at $19.26 filed · Value $241.60K — Xiao Deming 2007-08-20: 2 option exercises at $19.59 close — PADVAL UMESH, EARHART ALAN L 2007-08-24: 1 option exercise at $20.12 close — PADVAL UMESH 2007-08-27: 1 option exercise at $19.98 filed · Value $159.84K — PADVAL UMESH 2007-08-31: 1 option exercise at $20.48 close — PADVAL UMESH 2007-09-04: 3 option exercises at $20.63 close — Neely Rick 2007-09-20: 2 option exercises at $25.45 close — Neely Rick 2007-10-03: 2 option exercises at $25.97 close — Neely Rick, Chiocchi Adriana 2007-11-02: 1 option exercise at $21.62 close — Sciammas Maurice 2007-11-05: 2 option exercises at $22.19 close — Neely Rick, Sciammas Maurice 2007-11-07: 1 option exercise at $20.77 close — Sciammas Maurice 2007-11-08: 1 option exercise at $20.03 close — Sciammas Maurice 2007-11-09: 1 option exercise at $19.82 close — Sciammas Maurice 2008-02-08: 7 award or grants at $15.60 close — Ueunten Paul, Sciammas Maurice, Chiocchi Adriana and 3 more 2008-04-02: 1 option exercise at $18.57 close — Ueunten Paul 2008-05-05: 1 option exercise at $23.81 close — Chiocchi Adriana 2008-05-13: 2 option exercises at $25.04 close — Xiao Deming 2008-05-21: 1 option exercise at $24.26 close — Sciammas Maurice 2008-05-22: 6 award or grants at $23.05 close — SMITH- PILKINGTON KAREN A, CHANG KUO WEI HERBERT, EARHART ALAN L and 3 more 2008-06-17: 1 option exercise at $24.87 close — Ueunten Paul 2008-07-03: 1 option exercise at $22.89 close — Neely Rick 2008-07-25: 1 option exercise at $22.53 close — Hsing Michael 2008-08-04: 1 option exercise at $25.14 close — Neely Rick 2008-08-05: 1 option exercise at $24.91 close — Neely Rick 2008-08-06: 1 option exercise at $25.42 close — Neely Rick 2008-08-07: 19 option exercises at $26.01 close — EARHART ALAN L, Sciammas Maurice 2008-08-11: 1 option exercise at $27.91 close — Neely Rick 2008-08-12: 3 option exercises at $27.65 close — PADVAL UMESH, Xiao Deming 2008-09-03: 1 option exercise at $23.82 close — Neely Rick 2008-09-15: 1 option exercise at $18.50 close — Ueunten Paul 2008-10-28: 7 award or grants at $15.74 close — Sciammas Maurice, Ueunten Paul, Neely Rick and 3 more 2009-02-18: 6 award or grants at $12.86 close — PADVAL UMESH, MCBURNIE DOUGLAS M, Lee Victor K and 3 more 2009-05-27: 1 option exercise at $20.32 close — Hsing Michael 2009-05-28: 2 option exercises at $20.11 close — Hsing Michael 2009-05-29: 1 option exercise at $20.71 close — Xiao Deming 2009-06-01: 2 option exercises at $21.37 close — Chiocchi Adriana, Neely Rick 2009-06-09: 1 option exercise at $21.60 close — Neely Rick 2009-07-06: 3 option exercises at $22.26 close — Ueunten Paul, Neely Rick 2009-07-07: 1 option exercise at $22.18 close — Neely Rick 2009-07-09: 1 option exercise at $22.88 close — Neely Rick 2009-07-13: 1 option exercise at $23.76 close — Ueunten Paul 2009-07-23: 1 option exercise at $24.18 close — Neely Rick 2009-08-05: 2 option exercises at $22.77 close — Neely Rick 2009-08-14: 1 option exercise at $22.91 close — MCBURNIE DOUGLAS M 2009-08-26: 1 option exercise at $23.35 close — PADVAL UMESH 2009-08-31: 1 option exercise at $22.53 close — PADVAL UMESH 2009-09-03: 2 option exercises at $22.72 close — Neely Rick 2009-09-17: 1 option exercise at $23.79 close — Neely Rick 2009-09-18: 1 option exercise at $25.00 close — Neely Rick 2009-09-28: 1 option exercise at $24.17 close — Ueunten Paul 2009-10-05: 4 option exercises at $21.01 close — Ueunten Paul, Chiocchi Adriana, Neely Rick 2009-10-14: 1 option exercise at $22.23 close — Ueunten Paul 2009-11-04: 2 option exercises at $19.17 close — Neely Rick 2009-11-11: 2 option exercises at $20.60 close — Neely Rick 2009-11-16: 4 option exercises at $22.66 close — Neely Rick 2009-12-03: 2 option exercises at $23.80 close — Neely Rick 2009-12-31: 2 option exercises at $23.97 close — Sciammas Maurice 2010-02-09: 6 award or grants at $20.20 close — Lee Victor K, PADVAL UMESH, SMITH- PILKINGTON KAREN A and 3 more 2010-03-02: 1 option exercise at $21.16 close — CHANG KUO WEI HERBERT 2010-03-25: 1 option exercise at $22.90 close — Tseng Saria 2010-03-29: 1 option exercise at $21.89 close — Sciammas Maurice 2010-03-31: 1 option exercise at $22.30 close — Sciammas Maurice 2010-04-01: 2 option exercises at $22.66 close — Sciammas Maurice, Neely Rick 2010-04-13: 3 option exercises at $23.67 close — Sciammas Maurice, Tseng Saria, Rao Meera 2010-04-14: 3 option exercises at $24.75 close — Neely Rick, Tseng Saria, Hsing Michael 2010-04-30: 3 option exercises at $24.65 close — Sciammas Maurice, Hsing Michael, Tseng Saria 2010-05-03: 2 option exercises at $24.15 close — Neely Rick 2010-06-01: 1 option exercise at $18.84 close — Neely Rick 2010-06-16: 1 option exercise at $20.46 close — Neely Rick 2010-07-08: 1 option exercise at $18.25 close — Neely Rick 2010-07-12: 1 option exercise at $18.77 close — Neely Rick 2010-12-08: 1 option exercise at $17.75 close — Neely Rick 2011-02-17: 1 option exercise at $15.80 close — Hsing Michael 2011-02-18: 1 option exercise at $16.24 close — Hsing Michael 2011-03-08: 2 option exercises at $14.48 close — Moyer James C 2011-03-30: 1 option exercise at $14.32 close — Ueunten Paul 2011-06-17: 1 option exercise at $14.28 close — Ueunten Paul 2011-08-25: 1 option exercise at $12.14 close — Ueunten Paul 2012-01-10: 1 option exercise at $15.63 close — Ueunten Paul 2012-02-24: 2 option exercises at $19.00 close — Ueunten Paul 2012-02-28: 2 option exercises at $19.27 close — Tseng Saria 2012-02-29: 1 option exercise at $18.59 close — CHANG KUO WEI HERBERT 2012-04-30: 2 option exercises at $20.72 close — Rao Meera, Xiao Deming 2012-05-01: 2 option exercises at $21.95 filed · Value $375.35K — Rao Meera, Xiao Deming 2012-05-09: 1 option exercise at $20.86 close — Rao Meera 2012-07-05: 1 sale at $20.90 filed · Value $241.67K — Xiao Deming 2012-08-09: 4 option exercises at $21.14 close — Xiao Deming, Rao Meera, CHANG KUO WEI HERBERT 2012-08-10: 1 option exercise at $21.10 close — CHANG KUO WEI HERBERT 2012-08-14: 1 option exercise at $21.02 close — CHANG KUO WEI HERBERT 2012-08-16: 4 option exercises at $21.84 close — CHANG KUO WEI HERBERT, Xiao Deming 2012-08-21: 1 option exercise at $21.92 close — CHANG KUO WEI HERBERT 2012-08-22: 1 option exercise at $22.03 close — CHANG KUO WEI HERBERT 2012-08-23: 1 option exercise at $22.08 close — CHANG KUO WEI HERBERT 2012-08-24: 1 option exercise at $22.50 close — CHANG KUO WEI HERBERT 2012-08-27: 4 option exercises at $22.55 close — Xiao Deming, Rao Meera, CHANG KUO WEI HERBERT and 1 more 2012-08-29: 1 option exercise at $21.88 close — CHANG KUO WEI HERBERT 2012-09-06: 1 option exercise at $21.03 close — Rao Meera 2012-11-29: 4 option exercises at $21.12 close — Rao Meera, Tseng Saria, Lee Victor K 2012-11-30: 1 option exercise at $21.16 close — Lee Victor K 2012-12-05: 1 option exercise at $21.46 close — Rao Meera 2013-01-02: 1 option exercise at $22.83 close — Rao Meera 2013-01-03: 1 option exercise at $22.95 close — Rao Meera 2013-01-07: 1 option exercise at $22.18 close — Rao Meera 2013-01-10: 1 option exercise at $22.99 close — Rao Meera 2013-02-07: 6 option exercises at $24.59 close — Tseng Saria, Xiao Deming, Rao Meera 2013-02-20: 1 option exercise at $25.02 close — Xiao Deming 2013-02-22: 1 option exercise at $24.84 close — MCBURNIE DOUGLAS M 2013-02-27: 3 option exercises at $24.62 close — CHANG KUO WEI HERBERT 2013-02-28: 41 award or grants at $15.21 filed · Value $1.11M — Xiao Deming, Zhou Jeff, Tseng Saria and 8 more 2013-02-28: 2 option exercises at $24.59 close — Lee Victor K, CHANG KUO WEI HERBERT 2013-04-04: 1 option exercise at $22.74 close — Sciammas Maurice 2013-05-03: 1 option exercise at $24.24 close — Xiao Deming 2013-05-06: 3 option exercises at $24.33 close — Tseng Saria 2013-05-20: 2 option exercises at $24.22 close — Sciammas Maurice 2013-05-28: 1 option exercise at $24.46 close — Tseng Saria 2013-05-29: 1 option exercise at $24.45 close — Lee Victor K 2013-05-30: 1 option exercise at $24.79 close — Lee Victor K 2013-07-12: 7 option exercises at $25.13 close — Xiao Deming, Tseng Saria 2013-07-16: 2 option exercises at $26.01 close — Xiao Deming 2013-07-17: 1 option exercise at $26.33 close — Xiao Deming 2013-08-07: 2 option exercises at $28.70 close — Xiao Deming, SMITH- PILKINGTON KAREN A 2013-08-08: 1 option exercise at $28.77 close — Xiao Deming 2013-08-09: 3 option exercises at $28.34 close — Xiao Deming 2013-08-12: 2 option exercises at $28.97 close — CHANG KUO WEI HERBERT 2013-08-13: 1 option exercise at $29.35 close — CHANG KUO WEI HERBERT 2013-08-29: 1 option exercise at $30.25 close — Rao Meera 2013-09-23: 1 option exercise at $30.37 close — Sciammas Maurice 2013-09-24: 4 option exercises at $30.48 close — Sciammas Maurice 2013-10-04: 1 option exercise at $31.17 close — Sciammas Maurice 2013-10-25: 3 option exercises at $32.29 close — Xiao Deming, Sciammas Maurice, SMITH- PILKINGTON KAREN A 2013-10-30: 2 option exercises at $31.34 close — Hsing Michael 2013-10-31: 1 option exercise at $31.84 close — Zhou Jeff 2013-11-13: 1 option exercise at $33.24 close — Sciammas Maurice 2014-02-11: 5 option exercises at $34.35 close — Xiao Deming, Zhou Jeff 2014-02-12: 1 option exercise at $34.74 close — Zhou Jeff 2014-02-13: 2 option exercises at $35.18 close — Xiao Deming 2014-02-14: 4 option exercises at $35.09 close — Lee Victor K 2014-02-19: 7 option exercises at $34.36 close — MCBURNIE DOUGLAS M 2014-02-24: 1 option exercise at $35.75 close — SMITH- PILKINGTON KAREN A 2014-03-18: 1 option exercise at $38.86 close — Sciammas Maurice 2014-06-05: 1 option exercise at $39.69 close — Sciammas Maurice 2014-06-06: 1 option exercise at $40.19 close — Sciammas Maurice 2014-06-11: 1 option exercise at $41.41 close — Sciammas Maurice 2014-06-12: 1 option exercise at $41.36 close — Sciammas Maurice 2014-06-17: 1 option exercise at $42.36 close — Sciammas Maurice 2014-06-24: 4 option exercises at $41.55 close — Hsing Michael, Moyer James C 2014-06-30: 2 option exercises at $42.35 close — Zhou Jeff 2014-07-29: 1 option exercise at $42.31 close — Sciammas Maurice 2014-11-17: 1 option exercise at $44.98 close — Hsing Michael 2014-11-18: 2 option exercises at $46.41 close — Hsing Michael 2014-11-21: 1 option exercise at $46.63 close — Sciammas Maurice 2015-02-05: 1 option exercise at $47.53 close — Sciammas Maurice 2015-02-13: 1 option exercise at $50.32 close — Lee Victor K 2015-02-19: 2 option exercises at $51.04 close — SMITH- PILKINGTON KAREN A 2015-02-24: 1 option exercise at $52.72 close — Lee Victor K 2015-04-01: 2 option exercises at $51.99 close — Hsing Michael 2015-04-02: 1 option exercise at $51.70 close — Hsing Michael 2015-04-06: 1 option exercise at $51.90 close — Hsing Michael 2015-04-07: 1 option exercise at $51.51 close — Hsing Michael 2015-04-08: 1 option exercise at $51.75 close — Hsing Michael 2015-04-09: 1 option exercise at $51.81 close — Hsing Michael 2015-05-14: 1 option exercise at $53.17 close — Lee Victor K 2015-05-18: 2 option exercises at $54.30 close — Lee Victor K 2015-06-11: 2 option exercises at $53.03 close — Sciammas Maurice 2015-10-30: 1 option exercise at $62.42 close — Lee Victor K 2015-11-02: 1 option exercise at $62.80 close — Lee Victor K 2015-11-05: 2 option exercises at $63.12 close — Lee Victor K 2015-11-06: 2 option exercises at $64.42 close — Lee Victor K 2015-11-24: 2 option exercises at $67.34 close — Lee Victor K 2016-05-23: 2 option exercises at $65.37 close — Lee Victor K 2016-05-26: 2 option exercises at $67.86 close — Lee Victor K 2016-05-27: 1 option exercise at $68.52 close — Lee Victor K 2016-11-18: 1 option exercise at $81.83 close — Lee Victor K 2016-11-21: 1 option exercise at $82.86 close — Lee Victor K 2016-11-22: 2 option exercises at $83.95 close — Lee Victor K Logarithmic scale. Both lines share the same starting value for the selected range.
Markers: each transaction type positioned at that session's split-adjusted close. Tooltips retain the reported transaction price when available.
Transaction date Reporting owner Form Security Transaction Shares Price Price that day Filing 2016-11-22 Lee Victor KDirector 4 Non-Qualified Stock Option (Right to Buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −1,1760 owned after $19.29exercise price $83.95 2016-11-23 2016-11-22 Lee Victor KDirector 4 Non-Qualified Stock Option (Right to Buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −3,3280 owned after $19.29exercise price $83.95 2016-11-23 2016-11-21 Lee Victor KDirector 4 Non-Qualified Stock Option (Right to Buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −1,2003,328 owned after $19.29exercise price $82.86 2016-11-22 2016-11-18 Lee Victor KDirector 4 Non-Qualified Stock Option (Right to Buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −1,1154,528 owned after $19.29exercise price $81.83 2016-11-22 2016-05-27 Lee Victor KDirector 4 Non-Qualified Stock Option (right to buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −4,0005,643 owned after $20.20exercise price $68.52 2016-05-27 2016-05-26 Lee Victor KDirector 4 Non-Qualified Stock Option (right to buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −5,00010,000 owned after $20.20exercise price $67.86 2016-05-27 2016-05-26 Lee Victor KDirector 4 Non-Qualified Stock Option (right to buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −3579,643 owned after $20.20exercise price $67.86 2016-05-27 2016-05-23 Lee Victor KDirector 4 Non-Qualified Stock Option (right to buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −5,00020,000 owned after $20.20exercise price $65.37 2016-05-25 2016-05-23 Lee Victor KDirector 4 Non-Qualified Stock Option (right to buy)Derivative · Direct M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 −5,00015,000 owned after $20.20exercise price $65.37 2016-05-25