Y. Jack Zhang

Insider Trading: Sales
Symbol Price Amount Total Value Remaining Holdings Date Form 4
AMPH $18.36 16,299 $299,322.99 6,973,449 2021-02-03 Filing
AMPH $18.66 13,817 $257,821.07 6,989,748 2021-02-02 Filing
AMPH $18.29 24,114 $441,119.81 7,003,565 2021-02-01 Filing
AMPH $20.82 300,000 $6,246,000.00 7,027,679 2019-09-11 Filing
AMPH $20.48 43,577 $892,308.80 2,072,317 2018-12-14 Filing
AMPH $20.99 29,689 $623,166.17 7,327,679 2018-12-13 Filing
AMPH $21.21 37,469 $794,736.22 7,357,368 2018-12-12 Filing
AMPH $22.13 3,253 $71,992.47 7,394,837 2018-12-11 Filing
AMPH $21.43 63,504 $1,361,157.44 7,398,090 2018-12-11 Filing
AMPH $21.33 95,213 $2,030,693.34 752,321 2016-09-20 Filing
AMPH $20.74 86,555 $1,795,038.18 847,534 2016-09-20 Filing
AMPH $21.45 500 $10,726.00 1,088,335 2016-09-21 Filing
AMPH $20.70 54,581 $1,129,608.38 1,088,835 2016-09-21 Filing
AMPH $21.33 131,198 $2,798,335.26 1,088,335 2016-09-20 Filing
AMPH $20.73 76,152 $1,578,402.50 1,219,533 2016-09-20 Filing
AMPH $16.17 38,471 $621,972.20 679,750 2015-06-12 Filing
AMPH $16.47 11,664 $192,093.25 675,998 2015-06-11 Filing
AMPH $16.37 11,411 $186,819.75 674,732 2015-06-10 Filing
AMPH $16.15 75,618 $1,221,132.40 932,276 2015-06-12 Filing
AMPH $16.47 11,600 $191,045.04 924,641 2015-06-11 Filing