ECL — ECOLAB INC

Ownership history in MassMutual Private Wealth & Trust, FSB  ·  47 quarters on record

AI Ownership Summary

MassMutual Private Wealth & Trust, FSB reported ECOLAB INC (ECL) in 47 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.7% in 2025 Q1. The latest visible filing shows ECL at 0.69% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this ECL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was MassMutual Private Wealth & Trust, FSB's position in ECOLAB INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

ECL was reported at 0.69% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.7% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

ECL stock page MassMutual Private Wealth & Trust, FSB fund profile MassMutual Private Wealth & Trust, FSB full holdings
How MassMutual Private Wealth & Trust, FSB held ECL — position size vs. price
% of Fund (quarterly)    ECL price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED 94,946 -604 -0.6% 0.69% $25.3M 2026-04-13 $275.20
2025 Q4 REDUCED 95,550 -1,809 -1.9% 0.65% $25.1M 2026-01-07 $268.03
2025 Q3 REDUCED 97,359 -44 -0.0% 0.68% $26.7M 2025-10-22 $274.49
2025 Q2 ADDED 97,403 +1,365 +1.4% 0.70% $26.2M 2025-07-09 $266.10
2025 Q1 ADDED 96,038 +3,399 +3.7% 0.70% $24.3M 2025-04-01 $251.66
2024 Q4 ADDED 92,639 +3,080 +3.4% 0.61% $21.7M 2025-01-16 $236.08
2024 Q3 ADDED 89,559 +3,117 +3.6% 0.65% $22.9M 2024-10-02 $250.06
2024 Q2 ADDED 86,442 +619 +0.7% 0.62% $20.6M 2024-07-02 $231.50
2024 Q1 ADDED 85,823 +3,772 +4.6% 0.62% $19.8M 2024-04-09 $221.29
2023 Q4 ADDED 82,051 +1,155 +1.4% 0.55% $16.3M 2024-01-03 $191.73
37 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ECL

As of 2026 Q1 — sorted by position size

WORMSER FRERES GESTION 5.7% DUDLEY & SHANLEY, INC. 3Y 7Y 4.57% McCollum Christoferson Group LLC 3Y 7Y 3.81% Ayrshire Capital Management LLC 3Y 2.98% M. Kraus & Co 3Y 7Y 2.85% AVITY INVESTMENT MANAGEMENT INC. 3Y 7Y 2.62% Bath Savings Trust Co 3Y 7Y 2.19% Palisade Asset Management, LLC 3Y 7Y 2.05% HOWLAND CAPITAL MANAGEMENT LLC 3Y 7Y 1.9% EPIQ PARTNERS, LLC 3Y 1.89%

FAQ About MassMutual Private Wealth & Trust, FSB and ECL

These are the practical questions this page is built to answer before you even open the full history table.

How long has MassMutual Private Wealth & Trust, FSB reported owning ECL?

MassMutual Private Wealth & Trust, FSB reported ECL across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported ECL position in MassMutual Private Wealth & Trust, FSB's portfolio?

The largest reported portfolio weight for ECL was 0.70% in 2025 Q1.

What is the latest reported ECL position on this page?

The most recent filing on this page is 2026 Q1, when MassMutual Private Wealth & Trust, FSB reported 94,946 shares, equal to 0.69% of portfolio, with an estimated market value of $25.3M.

What does the chart on this ECL ownership page compare?

The chart compares MassMutual Private Wealth & Trust, FSB's quarterly ECL portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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