Ecolab Inc. (ECL) Shareholders & Insider Trades
Ecolab shareholders at a glance
The largest holder of Ecolab stock is Cascade Investment LLC, with 29.2 million shares (10.41% of the company), worth about $8.26 billion as of September 25, 2026. The 10 largest holders together own 42.8%.
In Q2 2026, 1,760 institutional holdings reports listed shares worth $67.40 billion.
Insiders reported 100 transactions in the last two years: 11 sales worth $15.03 million and 4 purchases. The newest one on file is from May 13, 2026 (Maclennan David W, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 13, 2026.
Ecolab Inc.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Ecolab shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Cascade Investment LLC | 29.2 million | 10.41% | $8.3B |
| Vanguard Capital Management LLC | 16.5 million | 5.90% | $4.7B |
| BlackRock Advisors LLC | 15.3 million | 5.45% | $4.3B |
| JPMorgan Investment Management, Inc. | 14.6 million | 5.21% | $4.1B |
| State Street Corporation | 11.8 million | 4.20% | $3.3B |
| Eaton Vance Management | 7.8 million | 2.79% | $2.2B |
| BlackRock Life Ltd. | 7.4 million | 2.63% | $2.1B |
| Vanguard Portfolio Management LLC | 6.3 million | 2.25% | $1.8B |
| Geode Capital Management LLC | 6.0 million | 2.14% | $1.7B |
| Gates Foundation Trust | 5.2 million | 1.86% | $1.5B |
As of September 25, 2026.
Ecolab institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 1,760 | – | $67.4B |
| Q1 2026 | 1,752 | 222.0 million | $59.0B |
| Q4 2025 | 1,723 | 230.0 million | $60.2B |
| Q3 2025 | 1,677 | 228.0 million | $62.5B |
| Q2 2025 | 1,682 | 232.0 million | $61.9B |
| Q1 2025 | 1,664 | 227.0 million | $57.2B |
| Q4 2024 | 1,619 | 222.0 million | $52.1B |
| Q3 2024 | 1,555 | 219.0 million | $55.7B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Ecolab insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Maclennan David W | May 13, 2026 | Director | Purchase at price 250.65 per share. | $250,650 |
| Cook Gregory B | May 4, 2026 | Officer | -- | – |
| Maclennan David W | May 4, 2026 | Director | Purchase at price 256.91 per share. | $205,530 |
| Vautrinot Suzanne M. | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Whalen Julie Patenaude | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Nowell Lionel L Iii | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Mckibben Tracy B. | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Reich Victoria J | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Althoff Judson | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Gross Marion K | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Doukeris Michel | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Zillmer John J | Mar 31, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
Newest 12 of 100 insider transactions in the last two years.
Questions and answers
Who owns the most Ecolab stock?
Cascade Investment LLC, with 10.41% of the company (as of September 25, 2026). Next: Vanguard Capital Management LLC (5.90%) and BlackRock Advisors LLC (5.45%).
How many institutions own Ecolab stock?
1,760 institutional holdings reports listed Ecolab shares in Q2 2026 worth $67.40 billion.
Are Ecolab insiders buying or selling the stock?
In the last two years insiders reported 11 sales and 4 purchases (100 transactions in all); the newest on file is from May 13, 2026.
