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BLAIR WILLIAM & CO/IL

Position in ECL — Ecolab Inc.

CIK 902367 CHICAGO, IL

Position in ECL

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$238,014,851
+$7,532,197 QoQ
Shares Held
854,294
-1.4% QoQ
Ownership
0.305%
of shares outstanding
% of Portfolio
0.72%
of 13F equity value
Holder Rank
#50
of 1,701 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 63% Shared 0% None 37%

Common Shares in ECL Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

BLAIR WILLIAM & CO/IL holds $462,890,523 across 17 Specialty Chemicals names. ECL ranks #1 (51.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ECL
Ecolab Inc.
This page
854,294 $238,014,851

All Filings in ECL

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $238,014,851 854,294
2026-03-31 $230,482,654 866,411
2025-12-31 $225,208,294 857,871
2025-09-30 $217,484,001 794,143
2025-06-30 $216,941,232 805,156
2025-03-31 $206,398,998 814,133
2024-12-31 $197,774,046 844,034
2024-09-30 $221,820,235 868,759
2024-06-30 $210,951,300 886,350
2024-03-31 $207,810,461 900,002
2023-12-31 $180,507,624 910,046
2023-09-30 $160,430,270 947,050
2023-06-30 $176,834,448 947,209
2023-03-31 $154,980,276 936,267
2022-12-31 $134,274,587 922,469
2022-09-30 $133,639,335 925,352
2022-06-30 $141,464,581 920,035
2022-03-31 $211,107,318 1,195,669
2021-12-31 $301,404,985 1,284,816
2021-09-30 $262,425,601 1,257,912
2021-06-30 $288,872,719 1,402,499
2021-03-31 $288,092,194 1,345,785
2020-12-31 $274,479,488 1,268,624
2020-09-30 $239,169,910 1,196,807
2020-06-30 $212,828,950 1,069,761
2020-03-31 $156,180,461 1,002,249