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Wei Jiang
Insider
First SEC filing: June 22, 2026 · Latest: June 22, 2026
Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net: $144,730
Avg return of open purchases vs now: 46.9%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | WAT | A | 57 | · | · | 3,630 Direct | +1.60% | Acquired | (price as of 2026-10-02) |
| June 30, 2026 | WAT | A | 67 | · | · | 3,573 Direct | +1.91% | Acquired | (price as of 2026-10-02) |
| June 18, 2026 | STAA | A | 6,182 | · | · | 6,182 Direct | · | Acquired | (price as of 2026-10-02) |
| June 18, 2026 | STAA | M | 10,683 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2026 | STAA | M | 10,683 | · | · | 77,127 Direct | +16.08% | Acquired | (price as of 2026-10-02) |
| March 31, 2026 | WAT | A | 64 | · | · | 3,505 Direct | +1.86% | Acquired | (price as of 2026-10-02) |
| March 16, 2026 | WAT | P | 500 | $289.46 | $144,730 | 3,441 Direct | +17.00% | Acquired | 46.9% (price as of 2026-10-02) |
| Feb. 25, 2026 | WAT | A | 57 | · | · | 57 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 25, 2026 | WAT | A | 23 | · | · | 2,941 Direct | +0.79% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2026 | STAA | M | 20,967 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 12, 2026 | STAA | M | 20,967 | · | · | 66,444 Direct | +46.10% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2026 | WAT | A | 828 | · | · | 828 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2026 | WAT | A | 307 | · | · | 2,918 Direct | +11.76% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2025 | WAT | A | 60 | · | · | 2,611 Direct | +2.35% | Acquired | (price as of 2026-10-02) |
| Nov. 12, 2025 | STAA | M | 20,967 | · | · | 20,967 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Nov. 12, 2025 | STAA | M | 20,967 | · | · | 45,477 Direct | +85.54% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2025 | WAT | A | 73 | · | · | 2,551 Direct | +2.95% | Acquired | (price as of 2026-10-02) |
| Aug. 12, 2025 | STAA | M | 20,967 | · | · | 41,934 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Aug. 12, 2025 | STAA | M | 20,967 | · | · | 24,510 Direct | +591.79% | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | WAT | A | 68 | · | · | 2,479 Direct | +2.82% | Acquired | (price as of 2026-10-02) |
| June 18, 2025 | STAA | A | 10,683 | · | · | 10,683 Direct | · | Acquired | (price as of 2026-10-02) |
| May 12, 2025 | STAA | A | 62,901 | · | · | 62,901 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2025 | WAT | A | 53 | · | · | 2,410 Direct | +2.25% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2025 | WAT | A | 818 | · | · | 818 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2025 | WAT | A | 319 | · | · | 2,357 Direct | +15.65% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2024 | WAT | A | 81 | · | · | 2,038 Direct | +4.14% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2024 | WAT | A | 63 | · | · | 1,958 Direct | +3.32% | Acquired | (price as of 2026-10-02) |
| June 28, 2024 | WAT | A | 64 | · | · | 1,895 Direct | +3.50% | Acquired | (price as of 2026-10-02) |
| June 20, 2024 | STAA | A | 4,010 | · | · | 4,010 Direct | · | Acquired | (price as of 2026-10-02) |
| June 20, 2024 | STAA | A | 2,244 | · | · | 3,543 Direct | +172.75% | Acquired | (price as of 2026-10-02) |
| March 28, 2024 | WAT | A | 62 | $328.72 | $20,381 | 62 Direct | · | Acquired | 29.4% (price as of 2026-10-02) |
| March 12, 2024 | STAA | A | 1,061 | · | · | 1,061 Direct | · | Acquired | (price as of 2026-10-02) |
| March 12, 2024 | STAA | A | 1,299 | · | · | 1,299 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2024 | WAT | A | 847 | · | · | 847 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2024 | WAT | A | 334 | · | · | 1,100 Direct | +43.60% | Acquired | (price as of 2026-10-02) |
| Dec. 29, 2023 | WAT | A | 91 | · | · | 91 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2023 | WAT | A | 74 | · | · | 74 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2023 | WAT | A | 74 | · | · | 74 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2023 | WAT | A | 68 | · | · | 68 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2023 | WAT | A | 827 | · | · | 827 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2023 | WAT | A | 318 | · | · | 766 Direct | +70.98% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2022 | WAT | A | 70 | · | · | 70 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2022 | WAT | A | 60 | · | · | 60 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2022 | WAT | A | 68 | · | · | 68 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2021 | WAT | A | 56 | · | · | 56 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2021 | WAT | A | 35 | · | · | 35 Direct | · | Acquired | (price as of 2026-10-02) |
| July 14, 2021 | WAT | A | 537 | $371.64 | $199,571 | 537 Direct | · | Acquired | 14.4% (price as of 2026-10-02) |
| July 14, 2021 | WAT | A | 147 | · | · | 147 Direct | · | Acquired | (price as of 2026-10-02) |
| July 14, 2021 | WAT | A | 537 | $371.64 | $199,571 | 537 Direct | · | Acquired | 14.4% (price as of 2026-10-02) |
| July 14, 2021 | WAT | A | 147 | · | · | 147 Direct | · | Acquired | (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 18, 2026 | STAA | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 6,182 | Acquired |
| June 18, 2026 | STAA | Restricted Stock Units [F1] | Common Stock | $0.00 | · | 10,683 | Disposed |
| Feb. 25, 2026 | WAT | Stock Option (Right to Buy) | Common Stock | $319.44 | Feb. 25, 2036 | 57 | Acquired |
| Jan. 12, 2026 | STAA | Restricted Stock Units | Common Stock | · | · | 20,967 | Disposed |
| Jan. 2, 2026 | WAT | Stock Option (Right to Buy) | Common Stock | $381.96 | Jan. 2, 2036 | 828 | Acquired |
| Nov. 12, 2025 | STAA | Restricted Stock Units | Common Stock | · | · | 20,967 | Disposed |
| Aug. 12, 2025 | STAA | Restricted Stock Units | Common Stock | · | · | 20,967 | Disposed |
| June 18, 2025 | STAA | Restricted Stock Units | Common Stock | · | · | 10,683 | Acquired |
| May 12, 2025 | STAA | Restricted Stock Units | Common Stock | · | · | 62,901 | Acquired |
| Jan. 2, 2025 | WAT | Stock Option (Right to Buy) | Common Stock | $368.26 | Jan. 2, 2035 | 818 | Acquired |
| June 20, 2024 | STAA | Common Stock Options [F1] | Common Stock | $40.11 | June 19, 2034 | 4,010 | Acquired |
| March 28, 2024 | WAT | Phantom Stock Units [F1] | Common Stock | $0.00 | · | 62 | Acquired |
| March 12, 2024 | STAA | Restricted Stock Units | Common Stock | · | · | 1,061 | Acquired |
| Jan. 2, 2024 | WAT | Stock Option (Right to Buy) | Common Stock | $328.62 | Jan. 3, 2034 | 847 | Acquired |
| Dec. 29, 2023 | WAT | Phantom Stock Units | Common Stock | · | · | 91 | Acquired |
| Sept. 30, 2023 | WAT | Phantom Stock Units | Common Stock | · | · | 74 | Acquired |
| June 30, 2023 | WAT | Phantom Stock Units | Common Stock | · | · | 74 | Acquired |
| March 31, 2023 | WAT | Phantom Stock Units | Common Stock | · | · | 68 | Acquired |
| Jan. 3, 2023 | WAT | Stock Option (Right to Buy) | Common Stock | $345.59 | Jan. 3, 2033 | 827 | Acquired |
| Dec. 31, 2022 | WAT | Phantom Stock Units | Common Stock | · | · | 70 | Acquired |
| Sept. 30, 2022 | WAT | Phantom Stock Units | Common Stock | · | · | 60 | Acquired |
| March 31, 2022 | WAT | Phantom Stock Units | Common Stock | · | · | 68 | Acquired |
| Dec. 31, 2021 | WAT | Phantom Stock Units | Common Stock | · | · | 56 | Acquired |
| Sept. 30, 2021 | WAT | Phantom Stock Units | Common Stock | · | · | 35 | Acquired |
| July 14, 2021 | WAT | Stock Option (Right to Buy) | Common Stock | $371.64 | July 14, 2031 | 537 | Acquired |
| July 14, 2021 | WAT | Stock Option (Right to Buy) | Common Stock | $371.64 | July 14, 2031 | 537 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).