WAT
WATERS CORP · Healthcare · Market cap $41.1B
Insiders sold $1.4M net in the last 90 days ·1 seller, 0 buyers· latest Form 4 filed Aug 7, 2026
Insider Buying
$451K
reported purchases (SEC code P)
Insider Selling
$1.4M
reported sales (SEC code S)
Unique Insiders
3
in the rolling window
Latest filing
Aug 7, 2026
KUEBLER CHRISTOPHER A
WATERS CORP (WAT) has 42 SEC Form 4 filings (49 transaction rows) in the rolling window, disclosed by 3 distinct insiders. Most recent filing: Aug 7, 2026.
Inside the rolling window, 3 insiders at WATERS CORP reported 2 open-market purchases totaling $451K and 1 open-market sale totaling $1.4M. Insiders have net sold $992K over the trailing 6 months. The most recent open-market filing is a sale of 3,626 shares by Director KUEBLER CHRISTOPHER A, dated Aug 6, 2026, worth $1.4M.
- Industry:Medical - Diagnostics & Research
- CEO:Udit Batra
- Employees:7,900
- HQ:Milford, MA, US
- IPO:1995-11-17
| Source | |||||||
|---|---|---|---|---|---|---|---|
KUEBLER CHRISTOPHER AFirst filing | Director | Sale | 3,626 | $1.4M | Aug 7 | +2.9% | SEC ↗ |
Jiang WeiFirst filing | Director | Purchase | 500 | $145K | Mar 18 | +41.9% | SEC ↗ |
FEARON RICHARD HFirst filing | Director | Purchase | 1,000 | $306K | Mar 10 | +39.7% | SEC ↗ |
Congress trading WAT 40 all-time
- RRep. Kevin HernSale$1,001 - $15,0002026-08-13
- DRep. Ro KhannaPurchase$1,001 - $15,0002026-04-13
- RRep. Thomas KeanSale$1,001 - $15,0002026-03-10
- RRep. Thomas KeanOther$1,001 - $15,0002026-02-13
- RRep. Kevin HernExchange$1,001 - $15,0002026-02-09
- DRep. John David DingellOther$1,001 - $15,0002026-02-10
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does WAT have?
WATERS CORP (WAT) has 42 SEC Form 4 filings (49 transaction rows) in the rolling 365-day window, disclosed by 3 distinct insiders. Most recent filing: Aug 7, 2026.
When was the most recent SEC Form 4 filing for WAT?
The most recent Form 4 filing for WAT on Tracefour is dated Aug 7, 2026.
What is the net insider flow at WAT over the last 6 months?
Over the trailing 180 days, insiders at WAT have net sold $992K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at WAT in the current window?
Inside the rolling window, insiders at WAT bought $451K and sold $1.4M based on SEC Form 4 filings.
Can I get alerts for WAT insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at WATERS CORP (WAT). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
WATERS CORP is in the Healthcare sector.