Transactions
11
Insider / WATERS CORP /DE/
Vergnano Mark
Director at WATERS CORP /DE/
- Company
- WATERS CORP /DE/
- First filing on record
- January 5, 2026
- Latest trade on record
- March 4, 2026
- SEC filings
- EDGAR ↗
Vergnano Mark, Director at WATERS CORP /DE/, has disclosed 11 transactions in JCI, WAT since January 5, 2026: 1 purchase (1 open-market buy) and 1 sale, worth about $1.2M at the reported prices. The latest was filed March 6, 2026, 2 days after the trade.
Open-market buys
1
Sales
1
Avg. disclosure lag
1.3d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Vergnano Mark made 1 purchase worth $1.0M and 1 sale worth $156K, plus 9 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Vergnano Mark has traded 1 stock on record; the largest by dollars is JCI.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 4 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| A | Grant or award | 5 | 2,500 | — |
| G | Gift | 4 | 15,330 | — |
| F | Shares withheld for tax | 1 | 1,115 | $156K |
| P | Open-market purchase | 1 | 7,665 | $1.0M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 11 | 1 · $1.0M | 1 · $156K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| JCI | Sell F | March 4, 2026 | March 6, 2026 | 2d | 1,115 | $140 | $156K | Form 4 ↗ | ||
| JCI | Other A | March 4, 2026 | March 6, 2026 | 2d | 1,285 | — | — | Form 4 ↗ | ||
| WAT | Other A | February 25, 2026 | February 27, 2026 | 2d | 57 | — | — | derivative | Form 4 ↗ | |
| WAT | Other A | February 25, 2026 | February 27, 2026 | 2d | 23 | — | — | Form 4 ↗ | ||
| JCI | Other G | February 5, 2026 | February 5, 2026 | 0d | 3,065 | — | — | indirect | Form 4 ↗ | |
| JCI | Other G | February 5, 2026 | February 5, 2026 | 0d | 3,065 | — | — | Form 4 ↗ | ||
| JCI | Other G | February 5, 2026 | February 5, 2026 | 0d | 4,600 | — | — | indirect | Form 4 ↗ | |
| JCI | Other G | February 5, 2026 | February 5, 2026 | 0d | 4,600 | — | — | Form 4 ↗ | ||
| JCI | Buy P | February 5, 2026 | February 5, 2026 | 0d | 7,665 | $132 | $1.0M | Form 4 ↗ | ||
| WAT | Other A | January 2, 2026 | January 5, 2026 | 3d | 828 | — | — | derivative | Form 4 ↗ | |
| WAT | Other A | January 2, 2026 | January 5, 2026 | 3d | 307 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| March 6, 2026 | Form 4 | 0000897069-26-000600 | 2 | published | EDGAR ↗ |
| February 27, 2026 | Form 4 | 0001000697-26-000087 | 2 | published | EDGAR ↗ |
| February 5, 2026 | Form 4 | 0000833444-26-000021 | 5 | published | EDGAR ↗ |
| January 5, 2026 | Form 4 | 0001000697-26-000032 | 2 | published | EDGAR ↗ |
Other insiders at WATERS CORP /DE/
- Schlitz Lei Zhang Director 33 rows
- ARCHER TIMOTHY President and CEO 24 rows
- FEARON RICHARD H Director 19 rows
- Donofrio John SVP, GC and Corp. Secretary 13 rows
- Grabowski Todd M VP and President, Americas 13 rows
- Knight Heather Director 11 rows
- Jiang Wei Director 10 rows
- KUEBLER CHRISTOPHER A Director 10 rows
- Vandiepenbeeck Marc EVP and CFO 10 rows
- HEUER BRANDT JULIE M VP, President Global Field Ops 8 rows
Everyone on file, with contracts and lobbying under the company's name: WATERS CORP /DE/.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 4 | 11 | January 5, 2026 | March 6, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.