Wei Jiang
CIK: 0001867980
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (20 total)
- Sep 30, 2026WAT
WATERS CORP /DE/
Award(A)Direct57 shares- - Jun 30, 2026WAT
WATERS CORP /DE/
Award(A)Direct67 shares- - Jun 18, 2026STAA
STAAR SURGICAL CO
Exercise(M)Direct10.7K shares- - Jun 18, 2026STAA
STAAR SURGICAL CO
Award(A)DirectRestricted Stock Units
6.2K shares- - Mar 31, 2026WAT
WATERS CORP /DE/
Award(A)Direct64 shares- - Mar 16, 2026WAT
WATERS CORP /DE/
Purchase(P)Direct500 shares at avg. $289.46$145K - Feb 25, 2026WAT
WATERS CORP /DE/
Award(A)Direct23 shares- - Jan 12, 2026STAA
STAAR SURGICAL CO
Exercise(M)Direct21K shares- - Jan 2, 2026WAT
WATERS CORP /DE/
Award(A)Direct307 shares- - Dec 31, 2025WAT
WATERS CORP /DE/
Award(A)Direct60 shares- - Nov 12, 2025STAA
STAAR SURGICAL CO
Exercise(M)Direct21K shares- - Sep 30, 2025WAT
WATERS CORP /DE/
Award(A)Direct73 shares- - Aug 12, 2025STAA
STAAR SURGICAL CO
Exercise(M)Direct21K shares- - Jun 30, 2025WAT
WATERS CORP /DE/
Award(A)Direct68 shares- - Jun 18, 2025STAA
STAAR SURGICAL CO
Award(A)DirectRestricted Stock Units
10.7K shares- - May 12, 2025STAA
STAAR SURGICAL CO
Award(A)DirectRestricted Stock Units
62.9K shares- - Mar 31, 2025WAT
WATERS CORP /DE/
Award(A)Direct53 shares- - Jan 2, 2025WAT
WATERS CORP /DE/
Award(A)Direct319 shares- - Dec 31, 2024WAT
WATERS CORP /DE/
Award(A)Direct81 shares- - Sep 30, 2024WAT
WATERS CORP /DE/
Award(A)Direct63 shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 |  WAT WATERS CORP /DE/ | Award(A) | 57 | - | $0 | Direct |
| Jun 30, 2026 | WAT WATERS CORP /DE/ | Award(A) | 67 | - | $0 | Direct |
| Jun 18, 2026 |  STAA STAAR SURGICAL CO | Exercise(M) | 10,683 | - | $0 | Direct |
| Jun 18, 2026 | STAA STAAR SURGICAL CO | Award(A) Restricted Stock Units | 6,182 | - | - | Direct |
| Mar 31, 2026 | WAT WATERS CORP /DE/ | Award(A) | 64 | - | $0 | Direct |
| Mar 16, 2026 | WAT WATERS CORP /DE/ | Purchase(P) | 500 | $289.46 | $144,730 | Direct |
| Feb 25, 2026 | WAT WATERS CORP /DE/ | Award(A) | 23 | - | $0 | Direct |
| Jan 12, 2026 | STAA STAAR SURGICAL CO | Exercise(M) | 20,967 | - | $0 | Direct |
| Jan 2, 2026 | WAT WATERS CORP /DE/ | Award(A) | 307 | - | $0 | Direct |
| Dec 31, 2025 | WAT WATERS CORP /DE/ | Award(A) | 60 | - | $0 | Direct |
| Nov 12, 2025 | STAA STAAR SURGICAL CO | Exercise(M) | 20,967 | - | - | Direct |
| Sep 30, 2025 | WAT WATERS CORP /DE/ | Award(A) | 73 | - | - | Direct |
| Aug 12, 2025 | STAA STAAR SURGICAL CO | Exercise(M) | 20,967 | - | - | Direct |
| Jun 30, 2025 | WAT WATERS CORP /DE/ | Award(A) | 68 | - | - | Direct |
| Jun 18, 2025 | STAA STAAR SURGICAL CO | Award(A) Restricted Stock Units | 10,683 | - | - | Direct |
| May 12, 2025 | STAA STAAR SURGICAL CO | Award(A) Restricted Stock Units | 62,901 | - | - | Direct |
| Mar 31, 2025 | WAT WATERS CORP /DE/ | Award(A) | 53 | - | - | Direct |
| Jan 2, 2025 | WAT WATERS CORP /DE/ | Award(A) | 319 | - | $0 | Direct |
| Dec 31, 2024 | WAT WATERS CORP /DE/ | Award(A) | 81 | - | $0 | Direct |
| Sep 30, 2024 | WAT WATERS CORP /DE/ | Award(A) | 63 | - | $0 | Direct |
1-20 of 20 transactions
About Jiang Wei
Jiang Wei (SEC CIK 0001867980) files insider reports with the SEC as Director of WATERS CORP /DE/ (WAT) and Director of STAAR SURGICAL CO (STAA).
Signal8 holds 18 ownership filings by Jiang Wei, all Form 4s, filed between Oct 2, 2024 and Oct 2, 2026. Those filings report 20 transactions, from Sep 30, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Jiang Wei's filings is in MILFORD, MA.
Recent filings by Jiang Wei
- Sep 30, 2026: Grant or award of WAT shares (Form 4, code A).
- Jun 30, 2026: Grant or award of WAT shares (Form 4, code A).
- Jun 18, 2026: Option exercise of STAA shares (Form 4, code M).
- Jun 18, 2026: Grant or award of STAA derivative securities (Form 4, code A).
- Mar 31, 2026: Grant or award of WAT shares (Form 4, code A).
Other insiders filing for WATERS CORP /DE/ (WAT)
- Knight Heather, Director
- KUEBLER CHRISTOPHER A, Director
- Carpio Robert L III, SVP Waters Analytical Sciences
- Chaubal Amol, SVP & Chief Financial Officer
- Bennett Jianqing, SVP Waters Adv. Diagnostics
- FEARON RICHARD H, Director