SEC Form 4
Waters Corp (WAT) insider trading
In the 12 months to Oct 24, 2026, one WAT insider reported open-market sales of $1.4M across 1 filing; 2 insiders bought $451.1K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $1.4M
- 1 filing · 1 insider
- Open-market purchases
- $451.1K
- 2 filings
Who traded WAT, and when
- Purchase
- Sale
WAT daily close from Oct 24, 2025 to Oct 23, 2026, between $283.32 and $457.47, last $453.67. 1 sale and 2 purchase filings by 3 insiders, marked at their filing dates. Christopher A. Kuebler, Director: sold $1.4M across 1 filing, first filed Aug 7, 2026, last Aug 7, 2026. Richard H. Fearon, Director: bought $306.3K across 1 filing, first filed Mar 10, 2026, last Mar 10, 2026. Wei Jiang, Director: bought $144.7K across 1 filing, first filed Mar 18, 2026, last Mar 18, 2026.
Largest mark · tap a row for others
Christopher A. Kuebler · Director
Sale $1,442,930
3,626 shares at $397.94 avg
Filed Aug 7, 2026 · traded Aug 6
Close on filing date $406.86
Christopher A. Kuebler · Director
Director
$1.4M soldRichard H. Fearon · Director
Director
$306.3K boughtWei Jiang · Director
Director
$144.7K boughtHas Waters Corp's CEO sold stock?
No. Udit Batra (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
3 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Christopher A. Kuebler | Director | $1.4M | — | 1 | — | |
| Richard H. Fearon | Director | — | $306.3K | 1 | — | |
| Wei Jiang | Director | — | $144.7K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Christopher A. Kuebler Director | Sale | 3,626 | $397.94 | $1.4M | 17,808 | |
traded | Wei Jiang Director | Purchase | 500 | $289.46 | $144.7K | 3,441 | |
traded | Richard H. Fearon Director | Purchase | 1,000 | $306.34 | $306.3K | 3,302 |
GET /stocks/filings/vX/form-4?tickers=WAT&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"WAT"
],
"issuer_cik": "0001000697",
"owner_cik": "0001229877",
"accession_number": "0001000697-26-000127",
"form_type": "4",
"filing_date": "2026-08-07",
"period_of_report": "2026-08-06",
"issuer_name": "WATERS CORP /DE/",
"issuer_trading_symbol": "WAT",
"owner_name": "KUEBLER CHRISTOPHER A",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-06",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 3626,
"transaction_price_per_share": 397.94,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 17808,
"transaction_value": 1442930.44,
"direct_or_indirect": "D",
"remarks": "Ex. 24 - Power of Attorney"
},
{
"tickers": [
"WAT"
],
"issuer_cik": "0001000697",
"owner_cik": "0001867980",
"accession_number": "0001000697-26-000105",
"form_type": "4",
"filing_date": "2026-03-18",
"period_of_report": "2026-03-16",
"issuer_name": "WATERS CORP /DE/",
"issuer_trading_symbol": "WAT",
"owner_name": "Jiang Wei",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-03-16",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 500,
"transaction_price_per_share": 289.46,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 3441.27,
"transaction_value": 144730,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 47 records
- Option exercises2 records
- Tax withholding11 records
- Grants and awards34 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for WAT every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.