Waters insider activity
What the executives and directors of Waters actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$992K
net open-market flow, 12 m
2 open-market buys, 12 m
0%
of sale value on 10b5-1 plans, 12 m
189 days since an insider bought, whole record
The tape: three years of insider trades
Open-market buy
Discretionary sale
Planned sale (10b5-1)
Reported-price path
Routine
Every marker sits at the price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the grey strip is the routine flow (grants, vestings, tax withholding and gifts) that a headline gets wrong by counting it as selling.
The 85 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Aug 6, 2026 | KUEBLER CHRISTOPHER A | 3,626 |
| Jun 30, 2026 | Jiang Wei | 67 |
| Jun 30, 2026 | Knight Heather | 63 |
| Jun 24, 2026 | Carpio Robert L III | 189 |
| May 12, 2026 | Chaubal Amol | 239 |
| Apr 6, 2026 | Bennett Jianqing | 302 |
| Mar 31, 2026 | Jiang Wei | 64 |
| Mar 31, 2026 | Knight Heather | 68 |
| Mar 2, 2026 | Chaubal Amol | 709 |
| Mar 2, 2026 | Batra Udit | 3,417 |
| Mar 2, 2026 | Bennett Jianqing | 410 |
| Feb 25, 2026 | BADDOUR LINDA | 23 |
| Feb 25, 2026 | FEARON RICHARD H | 23 |
| Feb 25, 2026 | KUEBLER CHRISTOPHER A | 23 |
| Feb 25, 2026 | Fraser Claire | 358 |
| Feb 25, 2026 | Vergnano Mark | 23 |
| Feb 25, 2026 | Brennan Daniel J. | 23 |
| Feb 25, 2026 | Ornskov Flemming | 336 |
| Feb 25, 2026 | Chaubal Amol | 1,455 |
| Feb 25, 2026 | Batra Udit | 5,165 |
| Feb 25, 2026 | Huang Pearl S | 23 |
| Feb 25, 2026 | Bennett Jianqing | 986 |
| Feb 25, 2026 | Jiang Wei | 23 |
| Feb 25, 2026 | Knight Heather | 23 |
| Feb 25, 2026 | Carpio Robert L III | 997 |
| Feb 5, 2026 | Chaubal Amol | 1,942 |
| Feb 5, 2026 | Batra Udit | 7,284 |
| Feb 5, 2026 | Bennett Jianqing | 1,428 |
| Feb 5, 2026 | Carpio Robert L III | 38 |
| Jan 2, 2026 | Jiang Wei | 367 |
| Jan 2, 2026 | Knight Heather | 367 |
| Jan 2, 2026 | BADDOUR LINDA | 307 |
| Jan 2, 2026 | FEARON RICHARD H | 307 |
| Jan 2, 2026 | KUEBLER CHRISTOPHER A | 307 |
| Jan 2, 2026 | Vergnano Mark | 307 |
| Jan 2, 2026 | Brennan Daniel J. | 307 |
| Jan 2, 2026 | Ornskov Flemming | 307 |
| Jan 2, 2026 | Huang Pearl S | 307 |
| Nov 5, 2025 | KUEBLER CHRISTOPHER A | 5,079 |
| Sep 30, 2025 | Jiang Wei | 73 |
| Sep 30, 2025 | Knight Heather | 78 |
| Jun 30, 2025 | Jiang Wei | 68 |
| Jun 30, 2025 | Knight Heather | 68 |
| Jun 24, 2025 | Carpio Robert L III | 134 |
| May 12, 2025 | Chaubal Amol | 239 |
| Apr 7, 2025 | Bennett Jianqing | 303 |
| Mar 31, 2025 | Jiang Wei | 53 |
| Mar 31, 2025 | Knight Heather | 53 |
| Mar 1, 2025 | Chaubal Amol | 1,076 |
| Mar 1, 2025 | Batra Udit | 4,976 |
| Mar 1, 2025 | Bennett Jianqing | 786 |
| Feb 5, 2025 | Chaubal Amol | 4,150 |
| Feb 5, 2025 | Batra Udit | 15K |
| Feb 5, 2025 | Bennett Jianqing | 3,233 |
| Feb 5, 2025 | Carpio Robert L III | 543 |
| Jan 2, 2025 | Huang Pearl S | 402 |
| Jan 2, 2025 | Jiang Wei | 400 |
| Jan 2, 2025 | Knight Heather | 391 |
| Jan 2, 2025 | BADDOUR LINDA | 319 |
| Jan 2, 2025 | FEARON RICHARD H | 319 |
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
The chart, in numbers
| Flow | Shares |
|---|---|
| Granted | 23K |
| Vested / exercised | 7,387 |
| Bought on market | 1,500 |
| Withheld for tax | 6,941 |
| Discretionary sales | 3,626 |
| Kept | 21K |
Skin in the game
Directly held shares as reported after each trade, indexed to 100 at the start of the window, up to five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
The chart, in numbers
| Insider | Start of the window | Latest reported | Indexed, start = 100 |
|---|---|---|---|
| KUEBLER CHRISTOPHER A | 14K | 18K | 126.6 |
| Bennett Jianqing | 3,178 | 6,532 | 205.5 |
| Ornskov Flemming | 3,657 | 5,271 | 144.1 |
Who holds what
the 14 largest holdings of 15| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| Batra Udit President and CEO | CEO | 33K | – | – | – | |
| KUEBLER CHRISTOPHER A Last trade Aug 6, 2026 | Director | 21K | – | $1.4M | net selling over the year: 0 months buying, 1 month selling | Aug 6, 2026 |
| Chaubal Amol SVP & Chief Financial Officer | CFO | 7,623 | – | – | – | |
| Bennett Jianqing SVP Waters Adv. Diagnostics | Officer | 6,532 | – | – | – | |
| Ornskov Flemming | Director | 5,271 | – | – | – | |
| Vergnano Mark Last trade Feb 28, 2023 | Director | 4,540 | – | – | Feb 28, 2023 | |
| Pratt Jonathan M SVP Waters Division | Officer | 3,887 | – | – | – | |
| Jiang Wei Last trade Mar 16, 2026 | Director | 3,573 | $145K | – | net buying over the year: 1 month buying, 0 months selling | Mar 16, 2026 |
| Carpio Robert L III SVP Waters Analytical Sciences | Officer | 3,426 | – | – | – | |
| FEARON RICHARD H Last trade Mar 6, 2026 | Director | 3,302 | $306K | – | net buying over the year: 1 month buying, 0 months selling | Mar 6, 2026 |
| Huang Pearl S | Director | 3,276 | – | – | – | |
| BADDOUR LINDA Last trade Mar 13, 2024 | Director | 2,899 | – | – | Mar 13, 2024 | |
| Brennan Daniel J. | Director | 1,355 | – | – | – | |
| Knight Heather | Director | 1,281 | – | – | – |
Open-market trade log
the 60 most recent of 380| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Aug 6, 2026 | KUEBLER CHRISTOPHER A (Director) 3,626 shares $397.94 +0.0% since trade filed Aug 7, 2026 | Discretionary sale | 3,626 | $397.94 | $1.4M | +0.0% | Aug 7, 2026 |
| Mar 16, 2026 | Jiang Wei (Director) 500 shares $289.46 +37.5% since trade filed Mar 18, 2026 | Open-market buy | 500 | $289.46 | $145K | +37.5% | Mar 18, 2026 |
| Mar 6, 2026 | FEARON RICHARD H (Director) 1,000 shares $306.34 +29.9% since trade filed Mar 10, 2026 | Open-market buy | 1,000 | $306.34 | $306K | +29.9% | Mar 10, 2026 |
| May 28, 2024 | FEARON RICHARD H (Director) 1,000 shares $332.90 +19.5% since trade filed May 29, 2024 | Open-market buy | 1,000 | $332.90 | $333K | +19.5% | May 29, 2024 |
| May 15, 2024 | KUEBLER CHRISTOPHER A (Director) 4,000 shares $361.64 +10.0% since trade filed May 16, 2024 | Discretionary sale | 4,000 | $361.64 | $1.4M | +10.0% | May 16, 2024 |
| Mar 13, 2024 | BADDOUR LINDA (Director) 500 shares $355.54 +11.9% since trade filed Mar 14, 2024 | Discretionary sale | 500 | $355.54 | $178K | +11.9% | Mar 14, 2024 |
| Aug 4, 2023 | KUEBLER CHRISTOPHER A (Director) 4,000 shares $291.48 +36.5% since trade filed Aug 7, 2023 | Discretionary sale | 4,000 | $291.48 | $1.2M | +36.5% | Aug 7, 2023 |
| Feb 28, 2023 | VERGNANO MARK P (Director) 3,185 shares $313.32 +27.0% since trade filed Mar 1, 2023 | Open-market buy | 3,185 | $313.32 | $998K | +27.0% | Mar 1, 2023 |
| Nov 30, 2022 | CONARD EDWARD (Director) 1,059 shares $334.70 +18.9% since trade filed Dec 8, 2022 late | Discretionary sale | 1,059 | $334.70 | $354K | +18.9% | Dec 8, 2022 late |
| May 19, 2022 | KUEBLER CHRISTOPHER A (Director) 4,000 shares $328.78 +21.0% since trade filed May 23, 2022 | Discretionary sale | 4,000 | $328.78 | $1.3M | +21.0% | May 23, 2022 |
| May 5, 2022 | Hendrickson Gary E (Director) 523 shares $335.19 +18.7% since trade filed May 9, 2022 | Discretionary sale | 523 | $335.19 | $175K | +18.7% | May 9, 2022 |
| May 5, 2022 | Hendrickson Gary E (Director) 1,237 shares $335.96 +18.5% since trade filed May 9, 2022 | Discretionary sale | 1,237 | $335.96 | $416K | +18.5% | May 9, 2022 |
| May 5, 2022 | Hendrickson Gary E (Director) 1,249 shares $337.50 +17.9% since trade filed May 9, 2022 | Discretionary sale | 1,249 | $337.50 | $422K | +17.9% | May 9, 2022 |
| May 5, 2022 | Hendrickson Gary E (Director) 1,352 shares $335.53 +18.6% since trade filed May 9, 2022 | Discretionary sale | 1,352 | $335.53 | $454K | +18.6% | May 9, 2022 |
| May 5, 2022 | Hendrickson Gary E (Director) 1,601 shares $334.51 +19.0% since trade filed May 9, 2022 | Discretionary sale | 1,601 | $334.51 | $536K | +19.0% | May 9, 2022 |
| Dec 2, 2021 | CONARD EDWARD (Director) 4,000 shares $336.01 +18.4% since trade filed Dec 3, 2021 | Discretionary sale | 4,000 | $336.01 | $1.3M | +18.4% | Dec 3, 2021 |
| Aug 18, 2021 | KUEBLER CHRISTOPHER A (Director) 3,000 shares $405.62 filed Aug 19, 2021 | Discretionary sale | 3,000 | $405.62 | $1.2M | – | Aug 19, 2021 |
| Aug 16, 2021 | BADDOUR LINDA (Director) 1,260 shares $408.99 filed Aug 17, 2021 | Discretionary sale | 1,260 | $408.99 | $515K | – | Aug 17, 2021 |
| Aug 13, 2021 | BERENDT MICHAEL J (Director) 806 shares $403.12 filed Aug 16, 2021 | Discretionary sale | 806 | $403.12 | $325K | – | Aug 16, 2021 |
| Aug 12, 2021 | BERENDT MICHAEL J (Director) 4,000 shares $398.43 filed Aug 13, 2021 | Discretionary sale | 4,000 | $398.43 | $1.6M | – | Aug 13, 2021 |
| Aug 5, 2021 | SALICE THOMAS P (Director) 3,500 shares $395.00 filed Aug 6, 2021 | Discretionary sale | 3,500 | $395.00 | $1.4M | – | Aug 6, 2021 |
| Aug 5, 2021 | SALICE THOMAS P (Director) 5,000 shares $395.00 filed Aug 6, 2021 | Discretionary sale | 5,000 | $395.00 | $2.0M | – | Aug 6, 2021 |
| May 24, 2021 | BERENDT MICHAEL J (Director) 1,161 shares $318.24 filed May 25, 2021 | Discretionary sale | 1,161 | $318.24 | $369K | – | May 25, 2021 |
| May 13, 2021 | BADDOUR LINDA (Director) 1,249 shares $314.99 filed May 14, 2021 | Discretionary sale | 1,249 | $314.99 | $393K | – | May 14, 2021 |
| Mar 5, 2021 | REED JOANN A (Director) 1,600 shares $263.31 filed Mar 8, 2021 | Discretionary sale | 1,600 | $263.31 | $421K | – | Mar 8, 2021 |
| Feb 9, 2021 | REED JOANN A (Director) 1,407 shares $282.30 filed Feb 10, 2021 | Discretionary sale | 1,407 | $282.30 | $397K | – | Feb 10, 2021 |
| Feb 9, 2021 | REED JOANN A (Director) 1,614 shares $282.51 filed Feb 10, 2021 | Discretionary sale | 1,614 | $282.51 | $456K | – | Feb 10, 2021 |
| Feb 9, 2021 | REED JOANN A (Director) 1,738 shares $282.36 filed Feb 10, 2021 | Discretionary sale | 1,738 | $282.36 | $491K | – | Feb 10, 2021 |
| Dec 4, 2020 | CONARD EDWARD (Director) 1,322 shares $236.59 filed Dec 7, 2020 | Discretionary sale | 1,322 | $236.59 | $313K | – | Dec 7, 2020 |
| Nov 12, 2020 | Carson Robert G (Officer) 2,277 shares $227.95 filed Nov 13, 2020 | Discretionary sale | 2,277 | $227.95 | $519K | – | Nov 13, 2020 |
| Nov 9, 2020 | BERENDT MICHAEL J (Director) 4,000 shares $230.10 filed Nov 10, 2020 | Discretionary sale | 4,000 | $230.10 | $920K | – | Nov 10, 2020 |
| Oct 30, 2020 | Buck Sherry (CFO) 17K shares $221.62 filed Nov 2, 2020 | Discretionary sale | 17K | $221.62 | $3.9M | – | Nov 2, 2020 |
| Aug 24, 2020 | Harrington Michael C (Officer) 5,254 shares $215.88 filed Aug 25, 2020 | Discretionary sale | 5,254 | $215.88 | $1.1M | – | Aug 25, 2020 |
| Aug 24, 2020 | Harrington Michael C (Officer) 5,600 shares $215.91 filed Aug 25, 2020 | Discretionary sale | 5,600 | $215.91 | $1.2M | – | Aug 25, 2020 |
| Aug 24, 2020 | Harrington Michael C (Officer) 14K shares $215.64 filed Aug 25, 2020 | Discretionary sale | 14K | $215.64 | $2.9M | – | Aug 25, 2020 |
| Aug 20, 2020 | Rae Elizabeth B (Officer) 6,380 shares $213.50 filed Aug 21, 2020 | Discretionary sale | 6,380 | $213.50 | $1.4M | – | Aug 21, 2020 |
| Aug 19, 2020 | King Ian (Officer) 12K shares $218.44 filed Aug 20, 2020 | Discretionary sale | 12K | $218.44 | $2.6M | – | Aug 20, 2020 |
| Aug 5, 2020 | Aleman Keeley A (Officer) 150 shares $210.47 filed Aug 6, 2020 | Discretionary sale | 150 | $210.47 | $32K | – | Aug 6, 2020 |
| Jul 31, 2020 | OConnell Christopher J (CEO) 30K shares $213.30 filed Aug 3, 2020 | Discretionary sale | 30K | $213.30 | $6.4M | – | Aug 3, 2020 |
| May 18, 2020 | Rae Elizabeth B (Officer) 5,000 shares $183.53 filed May 19, 2020 | Discretionary sale | 5,000 | $183.53 | $918K | – | May 19, 2020 |
| Feb 26, 2020 | Kim Francis (Officer) 1,471 shares $207.33 filed Feb 27, 2020 | Discretionary sale | 1,471 | $207.33 | $305K | – | Feb 27, 2020 |
| Feb 21, 2020 | Aleman Keeley A (Officer) 36 shares $216.75 filed Feb 24, 2020 | Discretionary sale | 36 | $216.75 | $8K | – | Feb 24, 2020 |
| Feb 21, 2020 | Aleman Keeley A (Officer) 115 shares $216.79 filed Feb 24, 2020 | Discretionary sale | 115 | $216.79 | $25K | – | Feb 24, 2020 |
| Feb 6, 2020 | Kim Francis (Officer) 912 shares $220.15 filed Feb 7, 2020 | Discretionary sale | 912 | $220.15 | $201K | – | Feb 7, 2020 |
| Feb 6, 2020 | Kim Francis (Officer) 1,472 shares $220.13 filed Feb 7, 2020 | Discretionary sale | 1,472 | $220.13 | $324K | – | Feb 7, 2020 |
| Feb 6, 2020 | Kim Francis (Officer) 1,827 shares $220.01 filed Feb 7, 2020 | Discretionary sale | 1,827 | $220.01 | $402K | – | Feb 7, 2020 |
| Feb 6, 2020 | Kim Francis (Officer) 2,277 shares $220.03 filed Feb 7, 2020 | Discretionary sale | 2,277 | $220.03 | $501K | – | Feb 7, 2020 |
| Jan 2, 2020 | BERENDT MICHAEL J (Director) 4,000 shares $234.93 filed Jan 3, 2020 | Discretionary sale | 4,000 | $234.93 | $940K | – | Jan 3, 2020 |
| Jan 2, 2020 | REED JOANN A (Director) 5,194 shares $234.67 filed Jan 3, 2020 | Discretionary sale | 5,194 | $234.67 | $1.2M | – | Jan 3, 2020 |
| Nov 26, 2019 | CONARD EDWARD (Director) 1,112 shares $221.97 filed Nov 27, 2019 | Discretionary sale | 1,112 | $221.97 | $247K | – | Nov 27, 2019 |
| Nov 15, 2019 | BEAUDOUIN MARK T (Officer) 762 shares $215.00 filed Nov 18, 2019 | Discretionary sale | 762 | $215.00 | $164K | – | Nov 18, 2019 |
| Nov 15, 2019 | BEAUDOUIN MARK T (Officer) 2,413 shares $215.00 filed Nov 18, 2019 | Discretionary sale | 2,413 | $215.00 | $519K | – | Nov 18, 2019 |
| Nov 13, 2019 | BEAUDOUIN MARK T (Officer) 825 shares $215.00 filed Nov 14, 2019 | Discretionary sale | 825 | $215.00 | $177K | – | Nov 14, 2019 |
| Nov 13, 2019 | King Ian (Officer) 21K shares $213.39 filed Nov 14, 2019 | Discretionary sale | 21K | $213.39 | $4.4M | – | Nov 14, 2019 |
| Nov 13, 2019 | Harrington Michael C (Officer) 7,871 shares $213.27 filed Nov 14, 2019 | Discretionary sale | 7,871 | $213.27 | $1.7M | – | Nov 14, 2019 |
| Nov 13, 2019 | Harrington Michael C (Officer) 16K shares $213.32 filed Nov 14, 2019 | Discretionary sale | 16K | $213.32 | $3.4M | – | Nov 14, 2019 |
| Nov 12, 2019 | King Ian (Officer) 2,375 shares $213.19 filed Nov 13, 2019 | Discretionary sale | 2,375 | $213.19 | $506K | – | Nov 13, 2019 |
| Nov 7, 2019 | Rae Elizabeth B (Officer) 2,674 shares $214.26 filed Nov 8, 2019 | Discretionary sale | 2,674 | $214.26 | $573K | – | Nov 8, 2019 |
| Nov 7, 2019 | Rae Elizabeth B (Officer) 7,514 shares $214.04 filed Nov 8, 2019 | Discretionary sale | 7,514 | $214.04 | $1.6M | – | Nov 8, 2019 |
| Nov 7, 2019 | Rae Elizabeth B (Officer) 19K shares $212.60 filed Nov 8, 2019 | Discretionary sale | 19K | $212.60 | $4.1M | – | Nov 8, 2019 |
“Since trade” compares with the latest insider-implied price, not a market quote: these pages are built from filings alone. A role here is the one on that day's Form 4, so somebody promoted since appears under both titles.
Filing hygiene
106 Forms 4, 3 years
0 filed late
2 amendments
1.7 avg. days to file
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.