ACMR - Acm Research, Inc. - Insider Stock Trading

Filing Date	T Date	Ticker	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
9/30/25 21:33	9/8/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	130	1.00	130	8	1,749	D
9/19/25 16:30	9/17/25	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		M.d	15	1.00	15	16	111	D
9/19/25 16:30	9/17/25	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		S.d	-495	33.00	-15	-12	111	D
9/19/25 16:30	9/18/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	M.d	168	5.60	30	13	253	D
9/19/25 16:30	9/18/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	S.d	-1,050	35.00	-30	-11	253	D
9/19/25 16:30	9/18/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	M.d	139	13.89	10	11	100	D
9/19/25 16:30	9/18/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.d	-350	35.00	-10	-9	100	D
9/5/25 16:30	9/3/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.dm	130	1.00	130	9	1,619	D
9/5/25 16:30	9/3/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S.dm	-3,460	26.61	-130	-7	1,619	D
8/26/25 16:30	8/22/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	M.d	155	13.89	11	13	100	D
8/26/25 16:30	8/22/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.d	-335	30.00	-11	-10	100	D
8/26/25 16:30	8/22/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	M.dm	336	5.60	60	31	253	D
8/26/25 16:30	8/22/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	S.dm	-1,860	31.00	-60	-19	253	D
7/17/25 16:30	7/15/25	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		M.d	15	1.00	15	16	111	D
7/17/25 16:30	7/15/25	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		S.d	-450	30.00	-15	-12	111	D
7/9/25 16:30	7/7/25	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	84	5.60	15	43	50	D
7/9/25 16:30	7/7/25	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-420	28.00	-15	-23	50	D
6/26/25 16:30	6/24/25	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	84	5.60	15	43	50	D
6/26/25 16:30	6/24/25	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-390	26.00	-15	-23	50	D
5/23/25 16:35	5/21/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.dm	130	1.00	130	9	1,619	D
5/23/25 16:35	5/21/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S.dm	-3,010	23.15	-130	-7	1,619	D
5/16/25 16:30	5/14/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	84	5.60	15		1	D
5/16/25 16:30	5/14/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-378	25.22	-15	-94	1	D
3/19/25 21:30	3/17/25	ACMR	Machn	Mchn	Special Industry Machinery	Hu Chenming	CA	D		S	-4,899	30.00	-163	-62	100	D
3/18/25 21:30	3/14/25	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-276	29.00	-10	-1	855	D
3/14/25 21:30	3/12/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	84	5.60	15		1	D
3/14/25 21:30	3/12/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-411	27.42	-15	-94	1	D
3/13/25 21:30	3/11/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S.m	-3,547	27.02	-131	-8	1,619	D
3/12/25 16:30	3/10/25	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-398	26.54	-15	-2	865	D
3/5/25 16:30	3/3/25	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	13	0.5000	25	3	880	D
3/5/25 16:30	3/3/25	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	105	0.5000	210	14	1,750	D
2/10/25 16:32	2/6/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	M.d	314	13.89	23	29	100	D
2/10/25 16:32	2/6/25	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.d	-520	23.00	-23	-18	100	D
2/10/25 16:30	2/6/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	84	5.60	15		1	D
2/10/25 16:30	2/6/25	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-330	22.00	-15	-94	1	D
12/3/24 16:32	11/29/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-332	17.43	-19	-2	855	D
12/3/24 16:30	11/29/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-981	17.44	-56	-4	1,544	D
11/29/24 16:30	11/26/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-1,006	17.89	-56	-3	1,600	D
11/26/24 16:30	11/22/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-287	19.12	-15	-2	874	D
11/26/24 16:30	11/22/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-1,073	19.08	-56	-3	1,656	D
11/18/24 16:32	11/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	18	0.5000	35	4	889	D
11/18/24 16:30	11/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	135	0.5000	270	19	1,713	D
10/8/24 21:37	10/4/24	ACMR	Machn	Mchn	Special Industry Machinery	Shanghai Science & Technology Venture Capital (Group) Co., Ltd.	F4	TH	Possible	S.m	-23,520	22.08	-1,065	-16	5,697	D
10/8/24 21:30	10/4/24	ACMR	Machn	Mchn	Special Industry Machinery	Xing Xiao	CA	D		S.m	-23,517	22.07	-1,065	-31	2,339	I
10/8/24 16:31	10/4/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	92	5.60	17		1	D
10/8/24 16:31	10/4/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-363	22.00	-17	-95	1	D
10/3/24 21:58	10/1/24	ACMR	Machn	Mchn	Special Industry Machinery	Shanghai Science & Technology Venture Capital (Group) Co., Ltd.	F4	TH	Possible	S.m	-694	20.05	-35	-1	6,763	D
10/3/24 16:30	10/1/24	ACMR	Machn	Mchn	Special Industry Machinery	Xing Xiao	CA	D		S.m	-694	20.05	-35	-1	3,404	I
9/3/24 16:30	8/29/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-345	18.08	-19	-2	855	D
8/26/24 16:30	8/22/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-298	19.85	-15	-2	874	D
8/16/24 21:02	8/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	18	0.5000	35	4	889	D
6/12/24 16:30	6/10/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	M.dm	277	4.62	60	31	253	D
6/12/24 16:30	6/10/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	S.dm	-1,353	22.54	-60	-19	253	D
6/7/24 21:32	6/6/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	M.dm	277	4.62	60	31	253	D
6/7/24 21:32	6/6/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang Jian	CA	O	See rema	S.dm	-1,350	22.50	-60	-19	253	D
6/7/24 21:30	6/6/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	98	4.91	20		1	D
6/7/24 21:30	6/6/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-458	22.92	-20	-96	1	D
5/31/24 16:30	5/29/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-435	22.63	-19	-2	855	D
5/31/24 16:30	5/29/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-1,947	22.62	-86	-6	1,450	D
5/24/24 16:30	5/22/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-2,053	22.81	-90	-6	1,536	D
5/24/24 16:30	5/22/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-343	22.88	-15	-2	874	D
5/16/24 09:00	5/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	90	0.5000	180	12	1,626	D
5/16/24 09:00	5/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	18	0.5000	35	4	889	D
3/15/24 21:32	3/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-2,405	27.62	-87	-6	1,450	D
3/15/24 21:32	3/14/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-538	27.70	-19	-2	855	D
3/15/24 21:32	3/13/24	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.m	-285	28.49	-10	-9	100	D
3/12/24 21:30	3/8/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-455	30.36	-15	-2	875	D
3/12/24 21:30	3/8/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-2,732	30.36	-90	-6	1,537	D
3/5/24 21:33	3/1/24	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	90	0.5000	180	12	1,627	D
3/5/24 21:31	3/1/24	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	18	0.5000	35	4	890	D
3/1/24 21:32	2/28/24	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	42	5.60	8	18	50	D
3/1/24 21:32	2/28/24	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-189	25.20	-8	-13	50	D
3/1/24 21:30	2/28/24	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		M.d	70	5.60	13	13	111	D
3/1/24 21:30	2/28/24	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		S.d	-315	25.20	-13	-10	111	D
1/16/24 16:15	1/12/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	46	4.55	10		1	D
1/16/24 16:15	1/12/24	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-220	22.00	-10	-92	1	D
12/28/23 21:02	12/26/23	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		M.d	56	5.60	10	10	111	D
12/28/23 21:02	12/26/23	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		S.d	-200	20.00	-10	-8	111	D
12/28/23 21:00	12/26/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	42	5.60	8	18	50	D
12/28/23 21:00	12/26/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-150	20.00	-8	-13	50	D
12/1/23 16:15	11/29/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-327	17.25	-19	-2	855	D
12/1/23 16:15	11/29/23	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-1,453	17.14	-85	-6	1,450	D
11/27/23 16:30	11/22/23	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S	-1,591	17.68	-90	-6	1,535	D
11/27/23 16:24	11/22/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-265	17.66	-15	-2	874	D
11/22/23 16:15	11/20/23	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		M.d	110	7.36	15	68	37	D
11/22/23 16:15	11/20/23	ACMR	Machn	Mchn	Special Industry Machinery	Liu Tracy	CA	D		S.d	-269	17.91	-15	-29	37	D
11/16/23 16:15	11/14/23	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	90	0.5000	180	12	1,625	D
11/16/23 16:15	11/14/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	18	0.5000	35	4	889	D
11/15/23 16:15	11/13/23	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	M.d	130	4.99	26	31	110	D
11/15/23 16:15	11/13/23	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.d	-437	16.79	-26	-19	110	D
10/13/23 16:15	10/11/23	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	51	4.55	11		1	D
10/13/23 16:15	10/11/23	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-225	20.00	-11	-93	1	D
9/14/23 17:00	9/12/23	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	S.m	-3,130	17.87	-175	-11	1,450	D
9/6/23 21:40	9/4/23	ACMR	Machn	Mchn	Special Industry Machinery	Wang David H	CA	DOT	See Rema	M.d	90	0.5000	180	12	1,625	D
9/5/23 21:30	9/1/23	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	M.d	137	4.55	30		1	D
9/5/23 21:30	9/1/23	ACMR	Machn	Mchn	Special Industry Machinery	McKechnie Mark	CA	O	See rema	S.d	-540	18.00	-30	-97	1	D
8/25/23 17:46	8/23/23	ACMR	Machn	Mchn	Special Industry Machinery	Chen Fuping	CA	O	See rema	M.d	112	1.06	105		0	D
8/25/23 17:46	8/23/23	ACMR	Machn	Mchn	Special Industry Machinery	Chen Fuping	CA	O	See rema	S.d	-1,575	15.00	-105	-100	0	D
8/24/23 20:13	8/22/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-445	13.85	-32	-4	855	D
7/5/23 18:52	7/3/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	40	1.77	23	82	50	D
7/5/23 18:52	7/3/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-338	15.00	-23	-31	50	D
6/8/23 21:49	6/6/23	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	M.d	192	4.92	39	55	110	D
6/8/23 21:49	6/6/23	ACMR	Machn	Mchn	Special Industry Machinery	Cheav Sotheara	CA	O	See rema	S.d	-390	10.00	-39	-26	110	D
6/5/23 18:26	6/1/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-375	10.00	-38	-4	887	D
5/24/23 18:33	5/22/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	19	0.5000	38	4	925	D
3/20/23 20:55	3/16/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		S	-452	12.06	-38	-4	889	D
3/13/23 21:02	3/9/23	ACMR	Machn	Mchn	Special Industry Machinery	Dun Haiping	CA	D		M.d	19	0.5000	38	4	927	D
3/13/23 21:00	3/9/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	M.d	40	1.77	23	82	50	D
3/13/23 21:00	3/9/23	ACMR	Machn	Mchn	Special Industry Machinery	Feng Lisa	CA	O	See rema	S.d	-278	12.37	-23	-31	50	D

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

TC

Stat

Stk

Ins

Fil

+d

+w

+m

+q

+h

+y

avg

Filing Date

T Date

Ticker

Sector

Ind

Industry

Owner

oSt

Rel

Title

T

TVal

Price

L

Qty

oc

Own

H

r2y

r1y

r6m

r3m

r6w

r3w

r7d

r3d

f1d

f1w

f1m

f3m

f6m

f1y