Ecolab ECL Insider Ownership

NYSE ECL

$288.19 +0.03 (+0.01%)

As of: Oct 21, 2026 · 3:59 PM EDT

Insider Holdings by Owner

30.38Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

21.54%

▼-0.0044% pp QoQ

Shares Held by Insiders

60.47Mn

filed for Sep 2026

▼-0.02% QoQ

Shares Outstanding

280.70Mn

280,700,000 shares

Direct Holdings

418.63K

Indirect: 60.06Mn

Net Shares Traded (QoQ)

-12.46K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

In the last 12 months, insiders at Ecolab made open-market purchases of $3.93 million (14.99K shares) and open-market sales of $27.15 million (95.82K shares).

A count shows 4 insiders buying ECL stock on the open market over the past 12 months and 10 insiders selling.
Among Ecolab's insiders, the largest open-market purchases in the past 12 months were by Michel D. Doukeris (Director), totaling $2 million (7.75K shares), most recently on June 10, 2026.
Meanwhile, the largest open-market sales of ECL in the past 12 months were by Christophe Beck (Chairman, President & CEO), totaling $16.83 million (59.58K shares), most recently on August 18, 2026.
Ecolab's latest insider trade on the open market was a purchase of 3.69K shares for $1.02 million by Eric Mark Green (Director) on September 11, 2026.
Away from the open market, ECL insiders received 56.44K shares in stock awards, acquired 108.33K shares through option exercises and conversions, gave up 33.53K shares to cover taxes or exercise prices and gave away 404 shares as gifts over the last 12 months.
Business Quant data puts insider holdings in ECL at 60.47Mn shares across insiders' latest Form 4 filings, or 21.54% of the 280.7Mn shares outstanding; that total is down 0.02% from 60.49Mn shares at the end of Q2 2026 and down 0.01% from 60.48Mn shares at the end of Q3 2025.
By type of ownership, ECL insiders hold 0.69% of their shares directly (418.63K shares) and 99.31% indirectly (60.06Mn shares).
Per Business Quant, 30 insiders of ECL hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
ECL's largest insider holders by reported holdings are William H. Gates III (10% owner, 60.05Mn shares), Christophe Beck (Chairman, President & CEO, 72.93K shares) and John J. Zillmer (Director, 49.54K shares).
Of the shares held by ECL insiders, 99.30% belong to William H. Gates III.
In the past year, 25 insiders of Ecolab submitted 109 Form 4 filings reporting trades, awards or other transactions.
The insider data for ECL reflects Form 4 filings through October 2, 2026.

Form 4 Holdings

Insiders Holding ECL

Insiders 41

Shares held 30.38Mn

Of outstanding 10.82%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	William H Iii Gates	TenPercentOwner	0	29,178,741	29,178,741	96.0%	22 Nov, 2024
2	Douglas M Jr Baker	Exec Chairman Of The Board	617,066	0	617,066	2.0%	25 Feb, 2022
3	Christophe Beck	Chairman, President Ceo	72,932	0	72,932	0.2%	20 Aug, 2026
4	John J Zillmer	Director	49,540	0	49,540	0.2%	02 Oct, 2026
5	Michael C. Mccormick	Evp Corporate Affairs	47,067	0	47,067	0.2%	17 Aug, 2022
6	Barbara Beck	Director	32,849	0	32,849	0.1%	02 Apr, 2024
7	Darrell R Brown	Co Coo Global Markets	32,733	0	32,733	0.1%	10 Jun, 2026
8	Timothy P Mulhere	Evp Pres Global Inst	30,640	0	30,640	0.1%	04 May, 2022
9	Arthur J Higgins	Director	26,866	0	26,866	0.1%	02 Apr, 2025
10	Laurie M Marsh	Evp Human Resources	25,810	0	25,810	0.1%	21 Feb, 2025
11	David Maclennan	Director	25,625	0	25,625	0.1%	02 Oct, 2026
12	Victoria Reich	Director	25,377	0	25,377	0.1%	02 Apr, 2026
13	Jeffrey M Ettinger	Director	20,063	0	20,063	0.1%	04 Apr, 2023
14	Michael Larson	Director	19,326	0	19,326	0.1%	02 Oct, 2026
15	Scott D Kirkland	Chief Financial Officer	17,524	0	17,524	0.1%	31 Jul, 2026
16	Larry L Berger	Evp Chief Technical Officer	17,385	0	17,385	0.1%	27 Feb, 2025
17	Angela M Busch	Evp Corp Strat Bus Dev	16,888	0	16,888	0.1%	19 Mar, 2024
18	Suzanne M Vautrinot	Director	11,960	0	11,960	0.0%	02 Oct, 2026
19	Tracy B Mckibben	Director	11,821	0	11,821	0.0%	02 Oct, 2026
20	Gregory B Cook	Co Coo Global Businesses	11,673	0	11,673	0.0%	11 Aug, 2026
21	Elizabeth A Simermeyer	Evp Pres Hc Life Sci	10,504	0	10,504	0.0%	25 Feb, 2022
22	Shari L Ballard	Director	9,973	0	9,973	0.0%	02 Oct, 2026
23	Jennifer J Bradway	Svp Corporate Controller	9,603	0	9,603	0.0%	04 Aug, 2026
24	Michel D Doukeris	Director	8,590	0	8,590	0.0%	02 Oct, 2026
25	Eric Mark Green	Director	8,234	0	8,234	0.0%	02 Oct, 2026
26	Boo Alexander A. De	Evp Pres Global Markets	7,971	0	7,971	0.0%	20 Feb, 2026
27	Lionel L Iii Nowell	Director	6,922	0	6,922	0.0%	02 Oct, 2026
28	Nicholas J. Alfano	Evp Pres Global Water	5,948	0	5,948	0.0%	20 Feb, 2026
29	Machiel Duijser	Evp Csco	5,601	0	5,601	0.0%	21 Feb, 2025
30	Nicolas A Granucci	Evp Pres Global Pest	4,901	0	4,901	0.0%	27 Feb, 2024
31	Gail Peterson	Evp Global Mktg Comms	2,530	0	2,530	0.0%	23 Feb, 2024
32	Lanesha Minnix	Evp, Gc Secretary	1,866	0	1,866	0.0%	01 Aug, 2023
33	Gergely Sved	Evp Pres Hc Life Sci	1,477	0	1,477	0.0%	23 Feb, 2024
34	Judson Althoff	Director	1,407	0	1,407	0.0%	02 Oct, 2026
35	Margeaux King	Evp Human Resources	1,147	0	1,147	0.0%	25 Feb, 2026
36	Benjamin M. Clark	Evp Global Supply Chain	1,083	0	1,083	0.0%	15 Jun, 2026
37	Jandeen M Boone	Evp, Gc Secretary	944	0	944	0.0%	20 Feb, 2026
38	Harpreet Saluja	Evp Corp Strat Bus Dev	924	0	924	0.0%	05 Dec, 2025
39	Marion K. Gross	Director	730	0	730	0.0%	02 Oct, 2026
40	Julie Whalen	Director	604	0	604	0.0%	02 Oct, 2026
41	Alexandra M A Hlila	Evp Gm Global Pest	379	0	379	0.0%	20 Feb, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

4,173 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
30 Sep, 2026	Michel D Doukeris	Director	Acquired A	131	$0.00	$0	8,590	Direct
30 Sep, 2026	Michael Larson	Director	Acquired A	131	$0.00	$0	19,326	Direct
30 Sep, 2026	Suzanne M Vautrinot	Director	Acquired A	131	$0.00	$0	11,960	Direct
30 Sep, 2026	John J Zillmer	Director	Acquired A	131	$0.00	$0	49,540	Direct
30 Sep, 2026	Shari L Ballard	Director	Acquired A	131	$0.00	$0	9,842	Direct
30 Sep, 2026	Tracy B Mckibben	Director	Acquired A	131	$0.00	$0	11,821	Direct
30 Sep, 2026	Julie Whalen	Director	Acquired A	131	$0.00	$0	604	Direct
30 Sep, 2026	Lionel L Iii Nowell	Director	Acquired A	131	$0.00	$0	6,922	Direct
30 Sep, 2026	Marion K. Gross	Director	Acquired A	131	$0.00	$0	730	Direct
30 Sep, 2026	Eric Mark Green	Director	Acquired A	131	$0.00	$0	8,089	Direct
30 Sep, 2026	Judson Althoff	Director	Acquired A	131	$0.00	$0	1,407	Direct
30 Sep, 2026	David Maclennan	Director	Acquired A	131	$0.00	$0	25,579	Direct
30 Sep, 2026	David Maclennan	Director	Acquired A	46	$276.36	$12.81K	25,625	Direct
30 Sep, 2026	Eric Mark Green	Director	Acquired A	145	$276.36	$40.00K	8,234	Direct
30 Sep, 2026	Shari L Ballard	Director	Acquired A	131	$276.36	$36.25K	9,973	Direct
11 Sep, 2026	Eric Mark Green	Director	Acquired P	3,370	$276.58	$932.06K	7,627	Direct
11 Sep, 2026	Eric Mark Green	Director	Acquired P	320	$277.29	$88.73K	7,947	Direct
18 Aug, 2026	Christophe Beck	Chairman, President Ceo	Disposed S	17,862	$280.14	$5.00Mn	72,932	Direct
11 Aug, 2026	Gregory B Cook	Co Coo Global Businesses	Disposed S	4,567	$285.13	$1.30Mn	11,673	Direct
03 Aug, 2026	Jennifer J Bradway	Svp Corporate Controller	Acquired M	6,457	—	—	12,548	Direct

Showing 1 to 20 of 4,173 transactions