| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ERII | Common Stock | Options Exercise | $170,282 | +21,859 | +9.5% | $7.79 | 251,936 | 22 May 2024 | Direct | |
| transaction | ERII | Common Stock | Options Exercise | $40,570 | +5,208 | +2.1% | $7.79 | 257,144 | 22 May 2024 | Direct | |
| transaction | ERII | Common Stock | Sale | $291,656 | -21,045 | -8.2% | $13.86 | 236,099 | 22 May 2024 | Direct | F1 |
| transaction | ERII | Common Stock | Options Exercise | $83,758 | +10,752 | +4.6% | $7.79 | 246,851 | 23 May 2024 | Direct | |
| transaction | ERII | Common Stock | Options Exercise | $16,234 | +2,084 | +0.84% | $7.79 | 248,935 | 23 May 2024 | Direct | |
| holding | ERII | Common Stock | 96,208 | 22 May 2024 | The Robert and Iran Mao Rev Trust DTD 04-06-2006 | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ERII | Employee Stock Option (Right to Buy) | Options Exercise | $170,282 | -21,859 | -67% | $7.79 | 10,752 | 22 May 2024 | Common Stock | 21,859 | $7.79 | Direct | F3 |
| transaction | ERII | Employee Stock Option (Right to Buy) | Options Exercise | $40,570 | -5,208 | -71% | $7.79 | 2,084 | 22 May 2024 | Common Stock | 5,208 | $7.79 | Direct | F3 |
| transaction | ERII | Employee Stock Option (Right to Buy) | Options Exercise | $83,758 | -10,752 | -100% | $7.79 | 0 | 23 May 2024 | Common Stock | 10,752 | $7.79 | Direct | F3 |
| transaction | ERII | Employee Stock Option (Right to Buy) | Options Exercise | $16,234 | -2,084 | -100% | $7.79 | 0 | 23 May 2024 | Common Stock | 2,084 | $7.79 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | This figure is the weighted average sales price of multiple trades ranging from $13.81 to $13.95 per share. The reporting person undertakes to provide the SEC Staff, Energy Recovery, Inc. or a shareholder of Energy Recovery, Inc. full information about the number of shares sold at each separate price upon request. |
| F2 | Mr. Mao is a co-trustee and exercises shared voting and investment power. |
| F3 | This employee stock option was granted on May 20, 2020. 25% of the underlying shares vest on the 1st anniversary of the vesting commencement date; thereafter, the remaining 75% vest 1/36th per month. |
Exhibit 24