1. Corporate Officers - J
2. Jiang Wei

Insider Trading History of Jiang Wei

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Jiang Wei since 2025. This trader's CIK number is 1867980. At the time of last reporting, Jiang Wei was the Director of Waters Corp /de/. (stock ticker symbol WAT). Also see all insider trading activities at Waters Corp /de/.

Note that in the past Jiang Wei also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Waters Corp /de/ (WAT) by Jiang Wei

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2026	WAT	500	$144,730	0	$0	0	$0

Yearly summary of insider trading at Staar Surgical Co (STAA) by Jiang Wei

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2026	STAA	0	$0	0	$0	20,967	$0
2025	STAA	0	$0	0	$0	41,934	$0

Insider trading activities at 2 companies by Jiang Wei:

1. Waters Corp /de/ (WAT)

2. Staar Surgical Co (STAA)

Table 1. Insider trading of Waters Corp /de/ (WAT) by Jiang Wei

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2026-03-16	WAT	Buy	500	289.46	144,730

Table 2. Insider trading of Staar Surgical Co (STAA) by Jiang Wei

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2026-01-12	STAA	Option Ex	20,967	.00	0
2025-11-12	STAA	Option Ex	20,967	.00	0
2025-08-12	STAA	Option Ex	20,967	.00	0

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Jiang Wei (Director of Waters Corp /de/ at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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