Insider · CIK 0001232218

Mao Robert Yu Lang

Reports to the SEC for 4 companies · MARLBOROUGH, MA

sec.gov

Transactions

Companies

Filings

CIK

0001232218

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2024-05-23	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+10.8K sh	$7.79	+$83.8K	246,851
2024-05-23	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+2,084 sh	$7.79	+$16.2K	248,935
2024-05-23	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−10.8K sh	$7.79	−$83.8K	0
2024-05-23	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−2,084 sh	$7.79	−$16.2K	0
2024-05-22	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+21.9K sh	$7.79	+$170K	251,936
2024-05-22	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+5,208 sh	$7.79	+$40.6K	257,144
2024-05-22	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−21K sh	$13.86	−$292K	236,099
2024-05-22	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−21.9K sh	$7.79	−$170K	10,752
2024-05-22	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−5,208 sh	$7.79	−$40.6K	2,084
2024-03-04	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+20.5K sh	$2.92	+$59.9K	196,621
2024-03-04	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−20.5K sh	$15.74	−$323K	176,112
2024-03-04	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15.3K sh	$8.60	+$132K	191,439
2024-03-04	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−15.3K sh	$15.74	−$240K	176,169
2024-03-04	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+16.7K sh	$7.71	+$129K	192,895
2024-03-04	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15.9K sh	$8.49	+$135K	208,774
2024-03-04	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+21.3K sh	$9.98	+$213K	230,077
2024-03-04	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−20.5K sh	—	—	0
2024-03-04	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−16.7K sh	—	—	0
2024-03-04	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−15.9K sh	—	—	0
2024-03-04	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−21.3K sh	—	—	0
2024-03-04	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−15.3K sh	—	—	0
2024-03-01	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+5,142 sh	$3.53	+$18.2K	181,254
2024-03-01	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+32.9K sh	$2.92	+$96K	214,137
2024-03-01	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−5,142 sh	$16.22	−$83.4K	208,995
2024-03-01	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−32.9K sh	$16.21	−$533K	176,112
2024-03-01	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−5,142 sh	—	—	0
2024-03-01	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−32.9K sh	—	—	20,509
2024-02-29	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+39.3K sh	$3.53	+$139K	215,426
2024-02-29	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−39.3K sh	$15.58	−$613K	176,112
2024-02-29	ERIIEnergy Recovery, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−39.3K sh	—	—	5,142
2023-11-08	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+26.7K sh	$7.79	+$208K	131,266
2023-11-08	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+38.5K sh	$7.79	+$300K	169,806
2023-11-08	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+6,306 sh	$13.96	+$88K	176,112
2023-11-08	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−26.7K sh	—	—	32,611
2023-11-08	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−38.5K sh	—	—	7,292
2023-11-08	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−6,306 sh	—	—	63,845
2023-11-07	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+34.3K sh	$7.79	+$268K	100,436
2023-11-07	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+4,168 sh	$7.79	+$32.5K	104,604
2023-11-07	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+121K sh	$13.96	+$1.69M	225,987
2023-11-07	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−121K sh	$18.02	−$2.19M	104,604
2023-11-07	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−34.3K sh	—	—	59,273
2023-11-07	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−4,168 sh	—	—	45,832
2023-11-07	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−121K sh	—	—	70,151
2023-11-06	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+130K sh	$7.79	+$1.01M	196,096
2023-11-06	ERIIEnergy Recovery, Inc.S Sale	Director	SSale	−130K sh	$17.76	−$2.31M	66,096
2023-11-06	ERIIEnergy Recovery, Inc. · Employee Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−130K sh	—	—	93,613
2023-10-26	ERIIEnergy Recovery, Inc.A Award	Director	AAward	+4,153 sh	—	—	66,096
2023-07-25	ERIIEnergy Recovery, Inc.A Award	Director	AAward	+32.7K sh	—	—	61,943
2023-01-30	ERIIEnergy Recovery, Inc.A Award	Director	AAward	+14K sh	$21.41	+$300K	29,248
2022-08-10	ERIIEnergy Recovery, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15.2K sh	$5.43	+$82.7K	15,236

Recent filings

Accepted (ET)
May 244
Mao Robert Yu Lang0001421517-24-000104
SEC(opens sec.gov)
Mar 64
Mao Robert Yu Lang0001421517-24-000065
SEC(opens sec.gov)

Companies

Address

350 CAMPUS DRIVE

MARLBOROUGH, MA, 01752-3064