ERII insider transaction filings
Energy Recovery, Inc. — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-07-29. Screen ERII transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-29 | 4 | Clemente Rodney — SVP, Water | Tax withholding (F): 2,320 @ $8.42 · Sale (S): 5,387 @ $8.56 | EDGAR |
| 2026-07-29 | 4 | Yeung William — Chief Legal Officer | Tax withholding (F): 2,828 @ $8.42 · Sale (S): 2,048 @ $8.56 | EDGAR |
| 2026-07-22 | 4 | Mitchell John Joseph — Director | Grant/award (A): 16,797 @ $0 | EDGAR |
| 2026-06-25 | 4 | Ryan Aidan — Interim CFO | Grant/award (A): 18,518 @ $11.61 | EDGAR |
| 2026-06-17 | 4 | Sabol Colin R — Director | Purchase (P): 11,180 @ $8.88 | EDGAR |
| 2026-06-17 | 4 | BUEHLER ALEXANDER J — Interim President and CEO, Director | Option exercise (M): 15,327 @ $8.60 · Sale (S): 14,900 @ $8.71 · Option exercise (M): 15,327 (derivative) @ $8.60 | EDGAR |
| 2026-06-05 | 4 | TONDREAU PAMELA L. — Director | Grant/award (A): 22,316 @ $8.29 | EDGAR |
| 2026-06-05 | 4 | Hanstveit Arve — Director | Grant/award (A): 18,094 @ $8.29 | EDGAR |
| 2026-06-05 | 4 | Sabol Colin R — Director | Grant/award (A): 18,094 @ $8.29 | EDGAR |
| 2026-06-05 | 4 | Chow Joan Kai — Director | Grant/award (A): 18,094 @ $8.29 | EDGAR |
| 2026-05-15 | 4 | TONDREAU PAMELA L. — Director | Purchase (P): 20,000 @ $8.34 | EDGAR |
| 2026-04-08 | 4 | Hanstveit Arve — Director | Sale (S): 2,419 @ $10.29 | EDGAR |
| 2026-04-06 | 4 | Hanstveit Arve — Director | Sale (S): 165,292 @ $10.14 | EDGAR |
| 2026-03-11 | 4 | Hanstveit Arve — Director | Sale (S): 25,000 @ $10.96 | EDGAR |
| 2026-03-09 | 4 | Hanstveit Arve — Director | Sale (S): 38,418 @ $10.71 · Sale (S): 11,582 @ $10.62 | EDGAR |
| 2026-03-06 | 4 | Ramanan Natarajan — Chief Technology Officer | Sale (S): 272 @ $10.57 | EDGAR |
| 2026-03-06 | 4 | Clemente Rodney — SVP, Water | Sale (S): 20,568 @ $10.61 | EDGAR |
| 2026-03-04 | 4 | Ramanan Natarajan — Chief Technology Officer | Tax withholding (F): 2,724 @ $10.22 | EDGAR |
| 2026-02-19 | 4 | Hostetler Matthew — Chief Human Resources Officer | Grant/award (A): 25,959 @ $0 | EDGAR |
| 2026-02-19 | 4 | Mancini Michael S. — Chief Financial Officer | Grant/award (A): 45,626 @ $0 | EDGAR |
| 2026-02-19 | 4 | Yeung William — Chief Legal Officer | Grant/award (A): 25,959 @ $0 | EDGAR |
| 2026-02-19 | 4 | Clemente Rodney — SVP, Water | Grant/award (A): 45,626 @ $0 | EDGAR |
| 2026-02-19 | 4 | Ramanan Natarajan — Chief Technology Officer | Grant/award (A): 29,106 @ $0 | EDGAR |
| 2026-02-19 | 4 | Moon David W — President and CEO, Director | Grant/award (A): 81,812 @ $0 | EDGAR |
| 2026-02-09 | 4 | Yeung William — Chief Legal Officer | Sale (S): 890 @ $14.59 · Sale (S): 646 @ $15.14 | EDGAR |
| 2026-02-09 | 4 | Clemente Rodney — SVP, Water | Sale (S): 724 @ $14.59 | EDGAR |
| 2026-02-03 | 4 | Yeung William — Chief Legal Officer | Sale (S): 7,271 @ $14.55 · Tax withholding (F): 1,003 @ $14.65 · Tax withholding (F): 8,622 @ $14.30 · Sale (S): 729 @ $14.46 | EDGAR |
| 2026-02-03 | 4 | Clemente Rodney — SVP, Water | Tax withholding (F): 694 @ $14.65 · Tax withholding (F): 8,397 @ $14.30 | EDGAR |
| 2026-02-03 | 4 | Hostetler Matthew — Chief Human Resources Officer | Tax withholding (F): 3,359 @ $14.30 | EDGAR |
| 2026-02-03 | 4 | Mancini Michael S. — Chief Financial Officer | Tax withholding (F): 4,798 @ $14.30 | EDGAR |
| 2026-02-03 | 4 | Moon David W — President and CEO, Director | Tax withholding (F): 17,160 @ $14.30 | EDGAR |
| 2025-12-08 | 4 | Hanstveit Arve — Director | Sale (S): 15,000 @ $14.97 · Sale (S): 15,000 @ $14.71 | EDGAR |
| 2025-10-27 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 3,530 @ $7.50 · Sale (S): 3,530 @ $17.50 · Option exercise (M): 5,638 @ $10.19 · Sale (S): 5,638 @ $18 · Option exercise (M): 3,530 @ $7.50 · Sale (S): 3,530 @ $18 · +3 more | EDGAR |
| 2025-10-22 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 3,530 @ $7.50 · Sale (S): 3,530 @ $17 · Option exercise (M): 3,530 (derivative) @ $7.50 | EDGAR |
| 2025-10-17 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 3,530 @ $7.50 · Sale (S): 3,530 @ $16.50 · Option exercise (M): 3,530 (derivative) @ $7.50 | EDGAR |
| 2025-10-07 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 1,038 @ $7.50 · Sale (S): 1,038 @ $16 · Option exercise (M): 2,529 @ $7.50 · Sale (S): 2,529 @ $16 · Option exercise (M): 1,038 (derivative) @ $7.50 · Option exercise (M): 2,529 (derivative) @ $7.50 | EDGAR |
| 2025-09-22 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 15,454 @ $8.95 · Sale (S): 15,454 @ $15.09 · Option exercise (M): 15,454 (derivative) @ $8.95 | EDGAR |
| 2025-09-15 | 4 | Yeung William — Chief Legal Officer | Option exercise (M): 30,877 @ $8.95 · Sale (S): 33,554 @ $14.51 · Option exercise (M): 30,877 (derivative) @ $8.95 | EDGAR |
| 2025-07-29 | 4 | Yeung William — Chief Legal Officer | Tax withholding (F): 1,989 @ $13.88 | EDGAR |
| 2025-07-29 | 4 | Clemente Rodney — SVP, Water | Tax withholding (F): 2,320 @ $13.88 · Sale (S): 5,387 @ $13.97 | EDGAR |
| 2025-06-13 | 4 | Hanstveit Arve — Director | Sale (S): 20,000 @ $12.75 · Sale (S): 30,000 @ $12.68 | EDGAR |
| 2025-06-06 | 4 | TONDREAU PAMELA L. — Director | Grant/award (A): 14,847 @ $0 | EDGAR |
| 2025-06-06 | 4 | Hanstveit Arve — Director | Grant/award (A): 12,038 @ $0 | EDGAR |
| 2025-06-06 | 4 | Sabol Colin R — Director | Grant/award (A): 12,038 @ $0 | EDGAR |
| 2025-06-06 | 4 | BUEHLER ALEXANDER J — Director | Grant/award (A): 12,038 @ $0 | EDGAR |
| 2025-06-06 | 4 | Chow Joan Kai — Director | Grant/award (A): 12,038 @ $0 | EDGAR |
| 2025-05-15 | 4 | TONDREAU PAMELA L. — Director | Purchase (P): 4,200 @ $12.28 | EDGAR |
| 2025-05-15 | 4 | Moon David W — President and CEO, Director | Purchase (P): 4,200 @ $12.20 | EDGAR |
| 2025-03-13 | 4 | Hanstveit Arve — Director | Sale (S): 50,000 @ $16.34 | EDGAR |
| 2025-03-12 | 4 | Ramanan Natarajan — Chief Technology Officer | Grant/award (A): 26,455 · Grant/award (A): 65,030 (derivative) @ $15.12 | EDGAR |
Recent 8-K events — Energy Recovery, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-05 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-13 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-11 | 8-K/A | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2026-06-08 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-05-28 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-06 | 8-K | 2.02 — Results of Operations and Financial Condition 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-25 | 8-K | 2.02 — Results of Operations and Financial Condition ? 2.06 — Material Impairments 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-05 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-08-06 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-08-06 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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