Jiang Wei has filed 31 insider transactions across 2 companies since December 2023.
Most recent transaction: a grant/award of 64 shares of WATERS CORP /DE/ ($WAT) on March 31, 2026.
Activity breakdown: 1 open-market purchase and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 64 | $0.00 | 3,505.3300 | 59,763,000 | 1.86% | 0.00% |
| March 16, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | P | Common Stock | 500 | $289.46 | 3,441.2700 | 59,763,000 | 17.00% | 0.00% |
| Feb. 25, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Stock Option (Right to Buy) | 57 | $0.00 | 57.0000 | 59,763,000 | 9999.99% | 0.00% |
| Feb. 25, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 23 | $0.00 | 2,941.2700 | 59,763,000 | 0.79% | 0.00% |
| Jan. 12, 2026 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Restricted Stock Units | 20967 | $0.00 | 0.0000 | 50,549,000 | 100.00% | 0.04% |
| Jan. 12, 2026 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Common Stock | 20967 | $0.00 | 66,444.0000 | 50,549,000 | 46.10% | 0.04% |
| Jan. 2, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 307 | $0.00 | 2,918.2700 | 59,763,000 | 11.76% | 0.00% |
| Jan. 2, 2026 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Stock Option (Right to Buy) | 828 | $0.00 | 828.0000 | 59,763,000 | 9999.99% | 0.00% |
| Dec. 31, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 60 | $0.00 | 2,611.2700 | 59,622,000 | 2.34% | 0.00% |
| Nov. 12, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Restricted Stock Units | 20967 | $0.00 | 20,967.0000 | 50,549,000 | 50.00% | 0.04% |
| Nov. 12, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Common Stock | 20967 | $0.00 | 45,477.0000 | 50,549,000 | 85.54% | 0.04% |
| Sept. 30, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 73 | $0.00 | 2,551.4800 | 59,622,000 | 2.94% | 0.00% |
| Aug. 12, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Common Stock | 20967 | $0.00 | 24,510.0000 | 49,125,000 | 591.79% | 0.04% |
| Aug. 12, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | M | Restricted Stock Units | 20967 | $0.00 | 41,934.0000 | 49,125,000 | 33.33% | 0.04% |
| June 30, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 68 | $0.00 | 2,478.5700 | 59,656,000 | 2.84% | 0.00% |
| June 18, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Restricted Stock Units | 10683 | $0.00 | 10,683.0000 | 49,125,000 | 9999.99% | 0.02% |
| May 12, 2025 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Restricted Stock Units | 62901 | $0.00 | 62,901.0000 | 49,125,000 | 9999.99% | 0.13% |
| March 31, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 53 | $0.00 | 2,410.2200 | 59,711,000 | 2.25% | 0.00% |
| Jan. 2, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Stock Option (Right to Buy) | 818 | $0.00 | 818.0000 | 59,645,000 | 9999.99% | 0.00% |
| Jan. 2, 2025 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 319 | $0.00 | 2,357.2700 | 59,645,000 | 15.65% | 0.00% |
| Dec. 31, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 81 | $0.00 | 2,038.2700 | 59,504,000 | 4.12% | 0.00% |
| Sept. 30, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 63 | $0.00 | 1,957.6200 | 59,504,000 | 3.32% | 0.00% |
| June 28, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 64 | $0.00 | 1,894.6500 | 59,431,000 | 3.51% | 0.00% |
| June 20, 2024 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Common Stock | 2244 | $0.00 | 3,543.0000 | 49,427,000 | 172.75% | 0.00% |
| June 20, 2024 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Common Stock Options | 4010 | $0.00 | 4,010.0000 | 49,427,000 | 9999.99% | 0.01% |
| March 28, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Phantom Stock Units | 62 | $328.72 | 62.3600 | 59,311,000 | 9999.99% | 0.00% |
| March 12, 2024 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Restricted Stock Units | 1061 | $0.00 | 1,061.0000 | 49,427,000 | 9999.99% | 0.00% |
| March 12, 2024 | STAAR SURGICAL CO | $STAA | Jiang Wei | Not found | A | Common Stock | 1299 | $0.00 | 1,299.0000 | 49,427,000 | 9999.99% | 0.00% |
| Jan. 2, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Common Stock | 334 | $0.00 | 1,100.0000 | 59,311,000 | 43.60% | 0.00% |
| Jan. 2, 2024 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Stock Option (Right to Buy) | 847 | $0.00 | 847.0000 | 59,311,000 | 9999.99% | 0.00% |
| Dec. 29, 2023 | WATERS CORP /DE/ | $WAT | Jiang Wei | Director | A | Phantom Stock Units | 91 | $0.00 | 90.5200 | 59,255,000 | 9999.99% | 0.00% |