Mao Robert Yu Lang has filed 30 insider transactions across 1 company since February 2024.
Most recent transaction: a option exercise of 21859 shares of Energy Recovery, Inc. ($ERII) on May 22, 2024.
Activity breakdown: 0 open-market purchases and 6 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 22, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 21859 | $7.79 | 348,144.0000 | 65,029,459 | 6.70% | 0.03% |
| May 22, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 5208 | $7.79 | 353,352.0000 | 65,029,459 | 1.50% | 0.01% |
| May 22, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 21045 | $13.86 | 332,307.0000 | 65,029,459 | 5.96% | 0.03% |
| May 23, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 10752 | $7.79 | 343,059.0000 | 65,029,459 | 3.24% | 0.02% |
| May 23, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 2084 | $7.79 | 345,143.0000 | 65,029,459 | 0.61% | 0.00% |
| May 22, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Employee Stock Option (Right to Buy) | 21859 | $7.79 | 10,752.0000 | 65,029,459 | 67.03% | 0.03% |
| May 22, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Employee Stock Option (Right to Buy) | 5208 | $7.79 | 2,084.0000 | 65,029,459 | 71.42% | 0.01% |
| May 23, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Employee Stock Option (Right to Buy) | 10752 | $7.79 | 0.0000 | 65,029,459 | 100.00% | 0.02% |
| May 23, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Employee Stock Option (Right to Buy) | 2084 | $7.79 | 0.0000 | 65,029,459 | 100.00% | 0.00% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 20509 | $2.92 | 292,829.0000 | 65,029,459 | 7.53% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 20509 | $15.74 | 272,320.0000 | 65,029,459 | 7.00% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 15327 | $8.60 | 287,647.0000 | 65,029,459 | 5.63% | 0.02% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 15270 | $15.74 | 272,377.0000 | 65,029,459 | 5.31% | 0.02% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 16726 | $7.71 | 289,103.0000 | 65,029,459 | 6.14% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 15879 | $8.49 | 304,982.0000 | 65,029,459 | 5.49% | 0.02% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 21303 | $9.98 | 326,285.0000 | 65,029,459 | 6.99% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 20509 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 16726 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 15879 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.02% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 21303 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.03% |
| March 4, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 15327 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.02% |
| Feb. 29, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 39314 | $3.53 | 311,634.0000 | 65,029,459 | 14.44% | 0.06% |
| Feb. 29, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 39314 | $15.58 | 272,320.0000 | 65,029,459 | 12.62% | 0.06% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 5142 | $3.53 | 277,462.0000 | 65,029,459 | 1.89% | 0.01% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Common Stock | 32883 | $2.92 | 310,345.0000 | 65,029,459 | 11.85% | 0.05% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 5142 | $16.22 | 305,203.0000 | 65,029,459 | 1.66% | 0.01% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | S | Common Stock | 32883 | $16.21 | 272,320.0000 | 65,029,459 | 10.77% | 0.05% |
| Feb. 29, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 39314 | $0.00 | 5,142.0000 | 65,029,459 | 88.43% | 0.06% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 5142 | $0.00 | 0.0000 | 65,029,459 | 100.00% | 0.01% |
| March 1, 2024 | Energy Recovery, Inc. | $ERII | Mao Robert Yu Lang | Director | M | Stock Option (Right to Buy) | 32883 | $0.00 | 20,509.0000 | 65,029,459 | 61.59% | 0.05% |