Insider Transactions

What ACM Research, Inc.'s executives and directors are doing with their own shares, from SEC Form 3/4/5 filings — separating what the filings state (awards, withholding, disclosed plans) from what only the pattern of dates shows.

Insider trades

	3 months	12 months
Open-market buys	0	0
Sells	15	72
Total trades	20	102

Shares traded

	3 months	12 months
Acquired	0	0
Disposed	0	0
Net activity	+0	+0

Common stock only — 102 reported trades in the last 12 months are in a security these totals do not cover.

See the story behind these numbers

View rich charts and dive into the patterns of specific insiders — who is accumulating, who is winding down, and which sale explanations the filings actually support.

Open-market buyer Disclosed 10b5-1 Heavy discretionary Sign up free

All transactions

All Buys Sells

Insider	Relation	Date	Transaction	Shares	Price	Value	Shares held
Wang David H	See Remarks	Sep 09	Open-market sale · S	−1,100	$77.59	−$85.3K	802,708
Wang David H	See Remarks	Sep 09	Open-market sale · S	−4,807	$76.73	−$369K	803,808
Wang David H	See Remarks	Sep 09	Open-market sale · S	−11,666	$75.58	−$882K	808,615
Wang David H	See Remarks	Sep 09	Open-market sale · S	−18,934	$74.67	−$1.41M	820,281
Wang David H	See Remarks	Sep 09	Open-market sale · S	−33,493	$73.80	−$2.47M	839,215
Wang David H	See Remarks	Sep 09	Exercise / conversion · M	+70,000	$1.00	+$70K	872,708
Wang David H	See Remarks	Sep 08	Open-market sale · S	−1,500	$78.57	−$118K	802,708
Wang David H	See Remarks	Sep 08	Open-market sale · S	−12,323	$78.08	−$962K	804,208
Wang David H	See Remarks	Sep 08	Open-market sale · S	−51,374	$77.15	−$3.96M	816,531
Wang David H	See Remarks	Sep 08	Open-market sale · S	−4,803	$75.99	−$365K	867,905
Wang David H	See Remarks	Sep 08	Exercise / conversion · M	+70,000	$1.00	+$70K	872,708
McKechnie Mark	See Remarks	Aug 20	Open-market sale · S	−11,209	$77.89	−$873K	900
McKechnie Mark	See Remarks	Aug 20	Open-market sale · S	−30,365	$77.45	−$2.35M	12,109
McKechnie Mark	See Remarks	Aug 20	Open-market sale · S	−13,625	$76.34	−$1.04M	42,474
McKechnie Mark	See Remarks	Aug 20	Exercise / conversion · M	+25,000	$13.89	+$347K	56,099
McKechnie Mark	See Remarks	Aug 20	Exercise / conversion · M	+30,199	$19.49	+$589K	31,099
Dun Haiping	Director	Aug 18	Open-market sale · S	−400	$82.17	−$32.9K	0
Dun Haiping	Director	Aug 18	Open-market sale · S	−3,400	$81.31	−$276K	400
Dun Haiping	Director	Aug 18	Open-market sale · S	−1,200	$80.29	−$96.3K	3,800
Dun Haiping	Director	Aug 18	Exercise / conversion · M	+5,000	$5.60	+$28K	5,000

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