Wei Jiang
CIK 1867980 · View on SEC EDGAR ↗
Insider
First SEC filing: June 22, 2026 · Latest: June 22, 2026
On this page
Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net:
$144,730
+ 48 non-open-market transactions below
Avg return of open purchases vs now:
43.3%
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
48 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 16, 2026 | WAT | P | 500 | $289.46 | $144,730 | 3,441 Direct | +17.00% | Acquired | 43.3% (price as of 2026-08-20) |
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 (6,182) | $0.00 | — | 6,182 | Acquired |
| June 18, 2026 | STAA | Restricted Stock Units [F1] | Common Stock (10,683) | $0.00 | — | 10,683 | Disposed |
| Feb. 25, 2026 | WAT | Stock Option (Right to Buy) | Common Stock (57) | $319.44 | Feb. 25, 2036 | 57 | Acquired |
| Jan. 12, 2026 | STAA | Restricted Stock Units | Common Stock (20,967) | — | — | 20,967 | Disposed |
| Jan. 2, 2026 | WAT | Stock Option (Right to Buy) | Common Stock (828) | $381.96 | Jan. 2, 2036 | 828 | Acquired |
| Nov. 12, 2025 | STAA | Restricted Stock Units | Common Stock (20,967) | — | — | 20,967 | Disposed |
| Aug. 12, 2025 | STAA | Restricted Stock Units | Common Stock (20,967) | — | — | 20,967 | Disposed |
| June 18, 2025 | STAA | Restricted Stock Units | Common Stock (10,683) | — | — | 10,683 | Acquired |
| May 12, 2025 | STAA | Restricted Stock Units | Common Stock (62,901) | — | — | 62,901 | Acquired |
| Jan. 2, 2025 | WAT | Stock Option (Right to Buy) | Common Stock (818) | $368.26 | Jan. 2, 2035 | 818 | Acquired |
| June 20, 2024 | STAA | Common Stock Options [F1] | Common Stock (4,010) | $40.11 | June 19, 2034 | 4,010 | Acquired |
| March 28, 2024 | WAT | Phantom Stock Units [F1] | Common Stock (62) | $0.00 | — | 62 | Acquired |
| March 12, 2024 | STAA | Restricted Stock Units | Common Stock (1,061) | — | — | 1,061 | Acquired |
| Jan. 2, 2024 | WAT | Stock Option (Right to Buy) | Common Stock (847) | $328.62 | Jan. 3, 2034 | 847 | Acquired |
| Dec. 29, 2023 | WAT | Phantom Stock Units | Common Stock (91) | — | — | 91 | Acquired |
| Sept. 30, 2023 | WAT | Phantom Stock Units | Common Stock (74) | — | — | 74 | Acquired |
| June 30, 2023 | WAT | Phantom Stock Units | Common Stock (74) | — | — | 74 | Acquired |
| March 31, 2023 | WAT | Phantom Stock Units | Common Stock (68) | — | — | 68 | Acquired |
| Jan. 3, 2023 | WAT | Stock Option (Right to Buy) | Common Stock (827) | $345.59 | Jan. 3, 2033 | 827 | Acquired |
| Dec. 31, 2022 | WAT | Phantom Stock Units | Common Stock (70) | — | — | 70 | Acquired |
| Sept. 30, 2022 | WAT | Phantom Stock Units | Common Stock (60) | — | — | 60 | Acquired |
| March 31, 2022 | WAT | Phantom Stock Units | Common Stock (68) | — | — | 68 | Acquired |
| Dec. 31, 2021 | WAT | Phantom Stock Units | Common Stock (56) | — | — | 56 | Acquired |
| Sept. 30, 2021 | WAT | Phantom Stock Units | Common Stock (35) | — | — | 35 | Acquired |
| July 14, 2021 | WAT | Stock Option (Right to Buy) | Common Stock (537) | $371.64 | July 14, 2031 | 537 | Acquired |
| July 14, 2021 | WAT | Stock Option (Right to Buy) | Common Stock (537) | $371.64 | July 14, 2031 | 537 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).