InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (22 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
22
T+90 hit rate
60%
T+90 mean return
+1.6%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by Zhou Jeff, Director. Director active across 1 company, notably Monolithic Power Systems INC. Aggregated, 27 filings have been published. Split: 0 buy · 22 sells. Total volume traded: €3.6m. History available since 28 June 2021. The latest transaction was disclosed on 4 February 2025 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Zhou Jeff
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations27 total
335 shares0Common StockSEC:0001214659-25-002112:0
200 shares@ US$750.003.9% of flowCommon StockSEC:0001214659-24-009809:0
200 shares@ US$750.573.9% of flowCommon StockSEC:0001214659-24-002430:0
348 shares0Common StockSEC:0001214659-24-002150:0
470 shares0Common StockSEC:0001214659-23-001846:0
200 shares@ US$540.002.9% of flowcommon stockSEC:0001214659-22-010040:0
200 shares@ US$520.002.9% of flowcommon stockSEC:0001214659-22-009595:0
542 shares0Common StockSEC:0001214659-22-002140
542 shares0Common StockSEC:0001214659-22-002140:0
300 shares@ US$490.003.5% of flowCommon StockSEC:0001214659-21-009036
300 shares@ US$490.000.0002% mcap4.0% of flowCommon StockSEC:0001214659-21-009036:0
300 shares@ US$477.000.0002% mcap4.0% of flowCommon StockSEC:0001214659-21-008911:0
300 shares@ US$477.003.4% of flowCommon StockSEC:0001214659-21-008911
400 shares@ US$465.220.0002% mcap5.1% of flowCommon StockSEC:0001214659-21-008192:0
400 shares@ US$465.224.4% of flowCommon StockSEC:0001214659-21-008192
500 shares@ US$410.004.9% of flowCommon StockSEC:0001214659-21-007831
500 shares@ US$410.000.0002% mcap5.6% of flowCommon StockSEC:0001214659-21-007831:0
500 shares@ US$400.004.7% of flowCommon StockSEC:0001214659-21-007720
500 shares@ US$400.000.0002% mcap5.5% of flowCommon StockSEC:0001214659-21-007720:0
500 shares@ US$390.324.6% of flowCommon StockSEC:0001214659-21-007600
500 shares@ US$390.320.0002% mcap5.3% of flowCommon StockSEC:0001214659-21-007600:0
500 shares@ US$387.270.0002% mcap5.3% of flowCommon StockSEC:0001214659-21-007383:0
500 shares@ US$387.274.6% of flowCommon StockSEC:0001214659-21-007383
500 shares@ US$380.004.5% of flowCommon StockSEC:0001214659-21-007311
500 shares@ US$380.000.0002% mcap5.2% of flowCommon StockSEC:0001214659-21-007311:0
25 of 27 declarations
About Zhou Jeff
Zhou Jeff is an executive at MONOLITHIC POWER SYSTEMS INC.
