Yeung William - Insider Stock Trading

Filing Date	T Date	Ticker	Issuer	Inc	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
10/27/25 17:28	10/23/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.dm	110	8.69	13	14	103	D
10/27/25 17:28	10/23/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.dm	-227	17.86	-13	-11	103	D
10/22/25 18:09	10/20/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.d	26	7.50	4	4	103	D
10/22/25 18:09	10/20/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.d	-60	17.00	-4	-3	103	D
10/17/25 16:40	10/16/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.d	26	7.50	4	4	103	D
10/17/25 16:40	10/16/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.d	-58	16.50	-4	-3	103	D
10/7/25 17:11	10/3/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.d	27	7.50	4	4	103	D
10/7/25 17:11	10/3/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.d	-57	16.00	-4	-3	103	D
9/22/25 19:18	9/18/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.d	138	8.95	15	18	103	D
9/22/25 19:18	9/18/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.d	-233	15.09	-15	-13	103	D
9/15/25 17:00	9/11/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	M.d	276	8.95	31	46	97	D
9/15/25 17:00	9/11/25	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.d	-487	14.51	-34	-26	97	D
7/30/24 16:08	7/29/24	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-29	14.63	-2	-2	91	D
3/13/24 17:24	3/11/24	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-15	14.98	-1	-1	87	D
2/7/24 17:06	2/5/24	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-15	14.89	-1	-1	94	D
2/5/24 17:59	2/1/24	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.m	-33	15.42	-2	-2	95	D
2/1/24 16:11	1/30/24	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-13	15.91	-1	-1	91	D
8/29/23 16:43	8/28/23	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-1,127	27.75	-41	-44	53	D
3/13/23 19:29	3/9/23	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-21	23.99	-1	-1	82	D
2/7/23 18:31	2/3/23	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S	-19	22.75	-1	-1	83	D
2/3/23 16:20	2/1/23	ERII	Energy Recovery, Inc.	DE	Machn	Mchn	Special Industry Machinery	Yeung William	CA	O	GC	S.m	-83	22.41	-4	-4	84	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

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