Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ECL held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 22.8M | $6.07B | +1.0% | 8.075% | 0.11% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 16.5M | $4.40B | — | 5.850% | 0.11% |
| 3 | STATE STREET CORP | 11.2M | $2.99B | +1.1% | 3.974% | 0.10% |
| 4 | MORGAN STANLEY | 7.8M | $2.07B | -1.2% | 2.759% | 0.12% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.3M | $1.68B | — | 2.237% | 0.09% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 6.0M | $1.61B | +6.3% | 2.121% | 0.10% |
| 7 | BILL & MELINDA GATES FOUNDATION TRUST | 5.2M | $1.39B | 0.0% | 1.848% | 4.38% |
| 8 | Aristotle Capital Management, LLC | 3.7M | $986.5M | -4.6% | 1.313% | 2.06% |
| 9 | UBS ASSET MANAGEMENT AMERICAS INC | 3.6M | $948.6M | +2.8% | 1.263% | 0.20% |
| 10 | ROYAL BANK OF CANADA | 3.5M | $930.3M | -0.9% | 1.238% | 0.16% |
| 11 | Pictet Asset Management Holding SA | 3.3M | $866.8M | -15.6% | 1.154% | 0.93% |
| 12 | Capital Research Global Investors | 3.1M | $817.3M | +131.2% | 1.088% | 0.13% |
| 13 | NORTHERN TRUST CORP | 2.8M | $739.6M | -2.5% | 0.984% | 0.10% |
| 14 | Invesco Ltd. | 2.6M | $692.1M | -0.5% | 0.921% | 0.11% |
| 15 | FRANKLIN RESOURCES INC | 2.5M | $667.6M | -4.0% | 0.889% | 0.16% |
| 16 | Amundi | 2.4M | $641.6M | +3.8% | 0.854% | 0.17% |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.2M | $596.9M | +58.8% | 0.795% | 0.32% |
| 18 | GOLDMAN SACHS GROUP INC | 2.0M | $534.5M | -2.8% | 0.711% | 0.06% |
| 19 | BANK OF AMERICA CORP /DE/ | 2.0M | $523.3M | -12.0% | 0.697% | 0.04% |
| 20 | Legal & General Group Plc | 1.9M | $516.3M | -6.8% | 0.687% | 0.12% |
| 21 | FMR LLC | 1.8M | $478.9M | +2.9% | 0.637% | 0.03% |
| 22 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 1.8M | $478.3M | -21.5% | 0.637% | 0.47% |
| 23 | NORDEA INVESTMENT MANAGEMENT AB | 1.8M | $457.7M | +2.4% | 0.623% | 0.43% |
| 24 | Swedbank AB | 1.7M | $457.2M | +5.5% | 0.609% | 0.48% |
| 25 | JANUS HENDERSON GROUP PLC | 1.7M | $452.5M | +6.9% | 0.602% | 0.22% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ECL — a direct measure of their conviction.
Filings activity in ECL during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,658 | +1.4% | 72.68% | 4.06 pp | $54.48B | 5.3% |
| Q4 2025 | 1,635 | +3.6% | 76.74% | 1.22 pp | $57.52B | 1.6% |
| Q3 2025 | 1,578 | 1.1% | 77.96% | 10.80 pp | $58.44B | 12% |
| Q2 2025 | 1,595 | +1.5% | 88.76% | +16.70 pp | $66.53B | +23% |
| Q1 2025 | 1,572 | +4.1% | 72.06% | +5.80 pp | $54.02B | +8.8% |
| Q4 2024 | 1,510 | +3.9% | 66.26% | 5.06 pp | $49.67B | 7.1% |
| Q3 2024 | 1,454 | +3.0% | 71.32% | 3.04 pp | $53.46B | 4.1% |
| Q2 2024 | 1,411 | — | 74.36% | — | $55.74B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 10, 2026 | Doukeris Michel D | Buy | 8K | $258.00 | $2.0M |
Quick answers to the most common questions about buying ECL stock.
Based on Q1 2026 13F filings, institutional ownership of Ecolab Inc. stands at 72.7%, held across 1,658 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of ECL, with approximately 22,807,096 shares worth $6.07B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of ECL, including BILL & MELINDA GATES FOUNDATION TRUST.
Our composite Smart Money Score for ECL is 40 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
172 institutions opened new positions in ECL during Q1 2026, while 149 fully exited. 981 added to existing positions and 493 trimmed.
ECL institutional ownership fell by 4.06 percentage points quarter-over-quarter, with a net change of +23 holders.
The top 10 institutions account for 42.3% of all reported 13F value in ECL, and the top 25 account for 58.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ecolab Inc. (ECL) Institutional Ownership