ERII - SEC Form 4 insider transactions

SEC Form 4 filed by Hanstveit Arve

SEC Form 4 filed by Hanstveit Arve

SEC Form 4 filed by Energy Recovery Inc.

Director Hanstveit Arve sold $534,400 worth of shares (50,000 units at $10.69), decreasing direct ownership by 8% to 575,220 units (SEC Form 4)

SVP, Water Clemente Rodney sold $218,309 worth of shares (20,568 units at $10.61), decreasing direct ownership by 15% to 116,008 units (SEC Form 4)

Chief Technology Officer Ramanan Natarajan sold $2,875 worth of shares (272 units at $10.57), decreasing direct ownership by 0.51% to 52,565 units (SEC Form 4)

Chief Technology Officer Ramanan Natarajan covered exercise/tax liability with 2,724 shares, decreasing direct ownership by 5% to 52,837 units (SEC Form 4)

Chief Financial Officer Mancini Michael S. was granted 45,626 shares, increasing direct ownership by 155% to 75,051 units (SEC Form 4)

President and CEO Moon David W was granted 81,812 shares, increasing direct ownership by 54% to 233,069 units (SEC Form 4)

Chief Technology Officer Ramanan Natarajan was granted 29,106 shares, increasing direct ownership by 110% to 55,561 units (SEC Form 4)

Chief Legal Officer Yeung William was granted 25,959 shares, increasing direct ownership by 33% to 104,167 units (SEC Form 4)

Chief Human Resources Officer Hostetler Matthew was granted 25,959 shares, increasing direct ownership by 126% to 46,556 units (SEC Form 4)

SVP, Water Clemente Rodney was granted 45,626 shares, increasing direct ownership by 50% to 136,576 units (SEC Form 4)

Chief Legal Officer Yeung William sold $22,766 worth of shares (1,536 units at $14.82), decreasing direct ownership by 2% to 78,208 units (SEC Form 4)

SVP, Water Clemente Rodney sold $10,563 worth of shares (724 units at $14.59), decreasing direct ownership by 0.79% to 90,950 units (SEC Form 4)

SVP, Water Clemente Rodney covered exercise/tax liability with 9,091 shares, decreasing direct ownership by 9% to 91,674 units (SEC Form 4)

Chief Human Resources Officer Hostetler Matthew covered exercise/tax liability with 3,359 shares, decreasing direct ownership by 14% to 20,597 units (SEC Form 4)

Chief Financial Officer Mancini Michael S. covered exercise/tax liability with 4,798 shares, decreasing direct ownership by 14% to 29,425 units (SEC Form 4)

President and CEO Moon David W covered exercise/tax liability with 17,160 shares, decreasing direct ownership by 10% to 151,257 units (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 9,625 shares and sold $116,334 worth of shares (8,000 units at $14.54), decreasing direct ownership by 18% to 79,744 units (SEC Form 4)

Director Hanstveit Arve sold $445,110 worth of shares (30,000 units at $14.84), decreasing direct ownership by 5% to 625,220 units (SEC Form 4)

Chief Legal Officer Yeung William sold $226,799 worth of shares (12,698 units at $17.86) and exercised 12,698 shares at a strike of $8.69 (SEC Form 4)

Chief Legal Officer Yeung William exercised 3,530 shares at a strike of $7.50 and sold $60,010 worth of shares (3,530 units at $17.00) (SEC Form 4)

Chief Legal Officer Yeung William exercised 3,530 shares at a strike of $7.50 and sold $58,245 worth of shares (3,530 units at $16.50) (SEC Form 4)

Chief Legal Officer Yeung William exercised 3,567 shares at a strike of $7.50 and sold $57,072 worth of shares (3,567 units at $16.00) (SEC Form 4)

Chief Legal Officer Yeung William exercised 15,454 shares at a strike of $8.95 and sold $233,139 worth of shares (15,454 units at $15.09) (SEC Form 4)

Chief Legal Officer Yeung William exercised 30,877 shares at a strike of $8.95 and sold $486,869 worth of shares (33,554 units at $14.51), decreasing direct ownership by 3% to 97,369 units (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 1,989 shares, decreasing direct ownership by 2% to 100,046 units (SEC Form 4)

SVP, Water Clemente Rodney sold $75,256 worth of shares (5,387 units at $13.97) and covered exercise/tax liability with 2,320 shares, decreasing direct ownership by 7% to 100,765 units (SEC Form 4)

Director Hanstveit Arve sold $635,400 worth of shares (50,000 units at $12.71), decreasing direct ownership by 7% to 655,220 units (SEC Form 4)

Director Tondreau Pamela L. was granted 14,847 shares, increasing direct ownership by 36% to 55,890 units (SEC Form 4)

Director Buehler Alexander J was granted 12,038 shares, increasing direct ownership by 22% to 66,328 units (SEC Form 4)

Director Chow Joan Kai was granted 12,038 shares, increasing direct ownership by 55% to 34,022 units (SEC Form 4)

Director Hanstveit Arve was granted 12,038 shares, increasing direct ownership by 2% to 705,220 units (SEC Form 4)

Director Sabol Colin R was granted 12,038 shares, increasing direct ownership by 84% to 26,397 units (SEC Form 4)

Director Hanstveit Arve sold $816,950 worth of shares (50,000 units at $16.34), decreasing direct ownership by 7% to 693,182 units (SEC Form 4)

Chief Technology Officer Ramanan Natarajan was granted 26,455 shares (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 944 shares, decreasing direct ownership by 0.92% to 102,035 units (SEC Form 4)

SVP, Water Clemente Rodney covered exercise/tax liability with 794 shares and sold $29,912 worth of shares (1,843 units at $16.23), decreasing direct ownership by 2% to 108,472 units (SEC Form 4)

SVP, Water Clemente Rodney sold $330,709 worth of shares (21,444 units at $15.42), decreasing direct ownership by 16% to 111,109 units (SEC Form 4)

SVP, Water Clemente Rodney covered exercise/tax liability with 944 shares, decreasing direct ownership by 0.71% to 132,553 units (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 882 shares, decreasing direct ownership by 0.85% to 102,979 units (SEC Form 4)

Chief Technology Officer Ghasripoor Farshad covered exercise/tax liability with 1,420 shares, disposed of 65,000 shares and acquired 65,000 shares, decreasing direct ownership by 56% to 52,860 units (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 1,325 shares, decreasing direct ownership by 1% to 103,861 units (SEC Form 4)

Chief Technology Officer Ghasripoor Farshad covered exercise/tax liability with 1,960 shares, decreasing direct ownership by 2% to 119,280 units (SEC Form 4)

SVP, Water Clemente Rodney covered exercise/tax liability with 1,309 shares, decreasing direct ownership by 0.97% to 133,497 units (SEC Form 4)

President and CEO Moon David W covered exercise/tax liability with 7,664 shares, decreasing direct ownership by 4% to 168,417 units (SEC Form 4)

Chief Legal Officer Yeung William covered exercise/tax liability with 4,061 shares, decreasing direct ownership by 4% to 105,186 units (SEC Form 4)

Chief Technology Officer Ghasripoor Farshad covered exercise/tax liability with 5,721 shares, decreasing direct ownership by 5% to 121,240 units (SEC Form 4)

SVP, Water Clemente Rodney covered exercise/tax liability with 5,784 shares, decreasing direct ownership by 4% to 134,806 units (SEC Form 4)

Chief Legal Officer Yeung William was granted 23,956 shares, increasing direct ownership by 28% to 109,247 units (SEC Form 4)

President and CEO Moon David W was granted 88,980 shares, increasing direct ownership by 102% to 176,081 units (SEC Form 4)

SVP, Water Clemente Rodney was granted 34,223 shares, increasing direct ownership by 32% to 140,590 units (SEC Form 4)

Chief Financial Officer Mancini Michael S. was granted 34,223 shares (SEC Form 4)

Director Hanstveit Arve sold $337,400 worth of shares (20,000 units at $16.87), decreasing direct ownership by 3% to 743,182 units (SEC Form 4)

SVP, Water Clemente Rodney sold $549,928 worth of shares (27,456 units at $20.03), decreasing direct ownership by 21% to 106,367 units (SEC Form 4)

Chief Technology Officer Ghasripoor Farshad sold $189,121 worth of shares (10,526 units at $17.97), decreasing direct ownership by 8% to 126,961 units (SEC Form 4)

SVP, Water Clemente Rodney sold $116,947 worth of shares (6,505 units at $17.98), decreasing direct ownership by 5% to 133,823 units (SEC Form 4)

President and CEO Moon David W sold $45,834 worth of shares (2,550 units at $17.97), decreasing direct ownership by 3% to 87,101 units (SEC Form 4)

Director Buehler Alexander J exercised 19,841 shares at a strike of $2.92, increasing direct ownership by 58% to 54,290 units (SEC Form 4)