Research Open Terminal →

← Unusual insider activity · Company hub

WAT Waters Corp

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$1.4M net selling - trailing 90 days

0 buyers - 1 unique sellers

Historical context: most recent complete month (2026-08) is the 2nd percentile of this ticker's monthly net P/S flow over 23 complete months (limited history). Lower percentiles are more selling; higher are more buying.

6 accumulating - 4 trimming - 2 unchanged

12 comparable institutions - Q2 2026

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$2.0M$1.0M$0-$1.0M-$2.0M2024-10 $02024-11 $02024-12 $02025-01 $02025-02 $02025-03 $02025-04 $02025-05 $02025-06 $02025-07 $02025-08 $02025-09 $02025-10 $02025-11 $02025-12 $02026-01 $02026-02 $02026-03 $451K2026-04 $02026-05 $02026-06 $02026-07 $02026-08 -$1.4MInstitutional shares (majority-gated quarters)50.0M25.0M02025-Q4 18.5M sh2026-Q1 19.1M sh2026-Q2 20.2M shOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Q4 2025Q1 2026Q2 2026~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Who is responsible

Insider Role Net activity Rows
KUEBLER CHRISTOPHER A — -~$1.4M 1

Transactions

Date Insider Role Type Shares Price Value
8/6/2026 KUEBLER CHRISTOPHER A — S -3626 397.94 ~$1.4M
3/16/2026 Jiang Wei — P 500 289.46 ~$0.1M
3/6/2026 FEARON RICHARD H — P 1000 306.34 ~$0.3M