Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

WATERS CORP /DE/

WAT · NYSE · CIK 0001000697 · Healthcare · Diagnostics & Research

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

8 Form 4 transaction lines observed in the same window
1 sales · 7 option, withholding, award, gift or other lines

Last qualifying purchase2026-03-16 · Jiang Wei · $144.7K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
KUEBLER CHRISTOPHER ADirector
○▼
Knight HeatherDirector
○○
Jiang WeiDirector
○○
Carpio Robert L IIISVP Waters Analytical Sciences
○
Chaubal AmolSVP & Chief Financial Officer
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-03-16 · Jiang Wei.

Recent Form 4 activity

2Purchases
1Sales
45Other Form 4 lines
41SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER7 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,404,650
Previous report
3,304,268
Avg daily volume
779,731
Days to cover
4.4

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-16Jiang WeiPurchase (P)Common Stock500USD 289.46USD 144,730SEC filing ↗
2026-03-06FEARON RICHARD HPurchase (P)Common Stock1,000USD 306.34USD 306,340SEC filing ↗
2024-05-28FEARON RICHARD HPurchase (P)Common Stock1,000USD 332.90USD 332,900SEC filing ↗
2023-02-28VERGNANO MARK PPurchase (P)Common Stock3,185USD 313.32USD 997,924SEC filing ↗

Form 4 evidence

48 transaction lines in the latest 365-day window; 313 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Knight HeatherAward / grant (A)Common Stock57USD 0.00USD 0SEC filing ↗
2026-09-30Jiang WeiAward / grant (A)Common Stock57USD 0.00USD 0SEC filing ↗
2026-08-06KUEBLER CHRISTOPHER ASale (S)Common Stock3,626USD 397.94USD 1,442,930SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Knight HeatherAward / grant (A)Common Stock57USD 0.00USD 0SEC filing ↗
2026-09-30Jiang WeiAward / grant (A)Common Stock57USD 0.00USD 0SEC filing ↗
2026-08-06KUEBLER CHRISTOPHER ASale (S)Common Stock3,626USD 397.94USD 1,442,930SEC filing ↗
2026-08-06KUEBLER CHRISTOPHER AOption exercise / conversion (M)Common Stock3,626USD 136.43USD 494,695SEC filing ↗
2026-06-30Knight HeatherAward / grant (A)Common Stock63USD 0.00USD 0SEC filing ↗
2026-06-30Jiang WeiAward / grant (A)Common Stock67USD 0.00USD 0SEC filing ↗
2026-06-24Carpio Robert L IIITax withholding (F)Common Stock189USD 369.18USD 69,775SEC filing ↗
2026-05-12Chaubal AmolTax withholding (F)Common Stock239USD 352.21USD 84,178SEC filing ↗
2026-04-06Bennett JianqingTax withholding (F)Common Stock302USD 304.09USD 91,835SEC filing ↗
2026-03-16Jiang WeiPurchase (P)Common Stock500USD 289.46USD 144,730SEC filing ↗
2026-03-06FEARON RICHARD HPurchase (P)Common Stock1,000USD 306.34USD 306,340SEC filing ↗
2026-03-02Chaubal AmolTax withholding (F)Common Stock709USD 307.23USD 217,826SEC filing ↗
2026-03-02Bennett JianqingTax withholding (F)Common Stock410USD 307.23USD 125,964SEC filing ↗
2026-03-02Batra UditTax withholding (F)Common Stock3,417USD 307.23USD 1,049,805SEC filing ↗
2026-02-25Vergnano MarkAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Ornskov FlemmingAward / grant (A)Common Stock336USD 0.00USD 0SEC filing ↗
2026-02-25Knight HeatherAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25KUEBLER CHRISTOPHER AAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Jiang WeiAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Huang Pearl SAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Fraser ClaireAward / grant (A)Common Stock358USD 0.00USD 0SEC filing ↗
2026-02-25FEARON RICHARD HAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Chaubal AmolAward / grant (A)Common Stock1,455USD 0.00USD 0SEC filing ↗
2026-02-25Carpio Robert L IIIAward / grant (A)Common Stock997USD 0.00USD 0SEC filing ↗
2026-02-25Brennan Daniel J.Award / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-25Bennett JianqingAward / grant (A)Common Stock986USD 0.00USD 0SEC filing ↗
2026-02-25Batra UditAward / grant (A)Common Stock5,165USD 0.00USD 0SEC filing ↗
2026-02-25BADDOUR LINDAAward / grant (A)Common Stock23USD 0.00USD 0SEC filing ↗
2026-02-05Chaubal AmolTax withholding (F)Common Stock58USD 376.89USD 21,860SEC filing ↗
2026-02-05Carpio Robert L IIITax withholding (F)Common Stock38USD 376.89USD 14,322SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerWAT
CIK0001000697
SectorHealthcare
IndustryDiagnostics & Research Yahoo Finance
SEC SIC3826 Laboratory Analytical Instruments
ExchangeNYSE

Data coverage

Local Form 4 history313 transaction lines from 2020-01-02 to 2026-09-30
4 P purchase lines · 46 S sale lines · 263 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.