ECL · Insider Trading

Ecolab, Inc.

Every open-market purchase and sale reported by ECL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
5
code P
Sales
2
code S
Reporting Insiders
25
current holders
ECL — Recent Form 4 Transactions (latest 2026-10-02)
FiledInsiderRole TypeSharesValue
2026-10-02 Lionel L Nowell III Director A +131 —
2026-10-02 Michael Larson Director A +131 —
2026-10-02 Marion K. Gross Director A +131 —
2026-10-02 John J Zillmer Director A +131 —
2026-10-02 Julie Whalen Director A +131 —
2026-10-02 David MacLennan Director A +177 +$12.81K
2026-10-02 Judson Althoff Director A +131 —
2026-10-02 Suzanne M Vautrinot Director A +131 —
2026-10-02 Michel D Doukeris Director A +131 —
2026-10-02 Eric Mark Green Director A +275 +$40.00K
2026-10-02 Shari L Ballard Director A +262 +$36.25K
2026-10-02 Tracy B McKibben Director A +131 —
2026-09-14 Eric Mark Green Director Buy +3,690 +$1.02M
2026-08-20 Christophe Beck CHAIRMAN, PRESIDENT & CEO Sell −17,862 −$5.00M
2026-08-11 Gregory B Cook Co-COO - Global Businesses Sell −4,567 −$1.30M
2026-08-05 Jennifer J Bradway SVP & CORPORATE CONTROLLER MIXED +3,512 −$820.87K
2026-07-31 Scott D Kirkland CHIEF FINANCIAL OFFICER MIXED +615 −$462.13K
2026-07-02 Julie Whalen Director A +130 —
2026-07-02 John J Zillmer Director A +130 —
2026-07-02 Lionel L Nowell III Director A +130 —
2026-07-02 Marion K. Gross Director A +130 —
2026-07-02 Tracy B McKibben Director A +130 —
2026-07-02 Suzanne M Vautrinot Director A +130 —
2026-07-02 Michel D Doukeris Director A +130 —
2026-07-02 Shari L Ballard Director A +260 +$36.25K
2026-07-02 Judson Althoff Director A +130 —
2026-07-02 Eric Mark Green Director A +273 +$40.00K
2026-07-02 David MacLennan Director A +176 +$12.81K
2026-07-02 Michael Larson Director A +130 —
2026-06-15 Benjamin M. Clark EVP - Global Supply Chain Buy +1,000 +$263.83K
2026-06-11 Michel D Doukeris Director Buy +7,750 +$2.00M
2026-06-10 Darrell R Brown Co-COO - Global Markets MIXED — −$1.43M
2026-05-27 Suzanne M Vautrinot Director MIXED — −$265.97K
2026-05-19 Judson Althoff Director A — —
2026-05-19 Shari L Ballard Director A — —
2026-05-19 Michel D Doukeris Director A — —
2026-05-19 Eric Mark Green Director A — —
2026-05-19 Marion K. Gross Director A — —
2026-05-19 Michael Larson Director A — —
2026-05-19 David MacLennan Director A — —
2026-05-19 Tracy B McKibben Director A — —
2026-05-19 Lionel L Nowell III Director A — —
2026-05-19 Suzanne M Vautrinot Director A — —
2026-05-19 Julie Whalen Director A — —
2026-05-19 John J Zillmer Director A — —
2026-05-14 David MacLennan Director Buy +1,000 +$250.65K
2026-05-06 Gregory B Cook Co-COO - Global Businesses MIXED +4,567 −$987.49K
2026-05-05 David MacLennan Director Buy +800 +$205.53K
2026-04-02 Judson Althoff Director A +137 —
2026-04-02 Shari L Ballard Director A +275 +$36.25K
ECL — Current Insider Holders
InsiderRole Shares HeldValue
CASCADE INVESTMENT, L.L.C. 10%+ Owner 30,326,627 $8.76B
William H Gates III 10%+ Owner 29,248,741 $8.45B
Christophe Beck CHAIRMAN, PRESIDENT & CEO 74,687 $21.58M
John J Zillmer Director 49,540 $14.31M
Darrell R Brown Co-COO - Global Markets 42,733 $12.35M
Arthur J Higgins Director 26,741 $7.73M
Victoria Reich Director 26,376 $7.62M
David MacLennan Director 26,334 $7.61M
Laurie M Marsh EVP - HUMAN RESOURCES 25,809 $7.46M
Larry L Berger EVP & CHIEF TECHNICAL OFFICER 25,623 $7.40M
Michael Larson Director 19,326 $5.58M
Scott D Kirkland CHIEF FINANCIAL OFFICER 19,001 $5.49M
Gregory B Cook Co-COO - Global Businesses 15,297 $4.42M
Jennifer J Bradway SVP & CORPORATE CONTROLLER 12,547 $3.62M
Suzanne M Vautrinot Director 11,960 $3.46M
Tracy B McKibben Director 11,820 $3.41M
Shari L Ballard Director 9,841 $2.84M
Michel D Doukeris Director 8,590 $2.48M
Nicholas J. Alfano EVP & PRES - GLOBAL WATER 8,404 $2.43M
Eric Mark Green Director 8,089 $2.34M
Alexander A. De Boo EVP & PRES - GLOBAL MARKETS 7,970 $2.30M
Lionel L Nowell III Director 6,922 $2.00M
Machiel Duijser EVP & CSCO 6,425 $1.86M
Margeaux King EVP - Human Resources 1,674 $483.60K
Judson Althoff Director 1,407 $406.49K
ECL Insider Trading FAQ
Who are the insiders at ECL?
25 officers, directors and 10%+ beneficial owners currently report holdings in ECL via SEC Form 4.
Are ECL insiders buying or selling?
Across the 50 most recent Form 4 filings for ECL, 5 were open-market purchases (code P) and 2 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is ECL insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent ECL filing is dated 2026-10-02.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the ECL quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.