MHR
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Matthew Hamilton Rosenberg’s Ecolab ECL Stock Holding History

Matthew Hamilton Rosenberg’s Portfolio ECL Stock Details ECL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$131K Sell
477
-25
-5% -$6.94K 0.02% 307
2026
Q2 		$140K Buy
502
+8
+2% +$2.11K 0.03% 301
2026
Q1 		$131K Sell
494
-10
-2% -$2.82K 0.03% 280
2025
Q4 		$132K Buy
504
+17
+3% +$4.53K 0.03% 284
2025
Q3 		$133K Hold
487
– – 0.03% 269
2025
Q2 		$131K Buy
487
+43
+10% +$10.9K 0.03% 280
2025
Q1 		$113K Hold
444
– – 0.03% 290
2024
Q4 		$104K Hold
444
– – 0.03% 307
2024
Q3 		$113K Hold
444
– – 0.03% 292
2024
Q2 		$105K Hold
444
– – 0.03% 288
2024
Q1 		$101K Hold
444
– – 0.03% 312
2023
Q4 		$88.1K Hold
444
– – 0.03% 332
2023
Q3 		$75.2K Hold
444
– – 0.03% 342
2023
Q2 		$82.9K Hold
444
– – 0.03% 335
2023
Q1 		$73.5K Hold
444
– – 0.02% 376
2022
Q4 		$64.6K Hold
444
– – 0.02% 399
2022
Q3 		$64K Buy
444
+34
+8% +$5.52K 0.02% 373
2022
Q2 		$65K Sell
410
-92
-18% -$15.3K 0.02% 389
2022
Q1 		$89K Buy
502
+25
+5% +$4.7K 0.03% 334
2021
Q4 		$112K Sell
477
-38
-7% -$8.59K 0.04% 276
2021
Q3 		$107K Buy
515
+28
+6% +$6.14K 0.04% 273
2021
Q2 		$100K Hold
487
– – 0.05% 252
2021
Q1 		$104K Hold
487
– – 0.06% 240
2020
Q4 		$105K Hold
487
– – 0.07% 225
2020
Q3 		$97K Hold
487
– – 0.07% 211
2020
Q2 		$97K Buy
487
+87
+22% +$16.8K 0.08% 198
2020
Q1 		$63K Buy
+400
New +$75.2K 0.06% 222

Other funds holding ECL

CAM
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.35% 1-Year Est. Return
EB
Eastern Bank Boston, Massachusetts $6.58B AUM 23.57% 1-Year Est. Return
AIM
Avity Investment Management Greenwich, Connecticut $1.6B AUM 32.15% 1-Year Est. Return
DS
Dudley & Shanley Palm Beach, Florida $629M AUM 7.61% 1-Year Est. Return
MPWT
MassMutual Private Wealth & Trust Windsor, Connecticut $3.79B AUM 19.33% 1-Year Est. Return
BST
Bath Savings Trust Bath, Maine $966M AUM 9.35% 1-Year Est. Return
CIM
Confluence Investment Management St. Louis, Missouri $5.97B AUM 5.11% 1-Year Est. Return
MSV
MN Services Vermogensbeheer The Hague, Netherlands $13.4B AUM 37.34% 1-Year Est. Return
GI
Gradient Investments Arden Hills, Minnesota $7B AUM 14.85% 1-Year Est. Return
YIA
YHB Investment Advisors West Hartford, Connecticut $1.59B AUM 21.04% 1-Year Est. Return

Matthew Hamilton Rosenberg's ECL Position: Q3 2026 in Review

Matthew Hamilton Rosenberg reduced its Ecolab (ECL) stake by 5% in Q3 2026, selling an estimated $6.94K and leaving 477 shares worth $131K. The position accounts for 0.02% of the portfolio, ranked #307.

Matthew Hamilton Rosenberg first reported a position in ECL in Q1 2020 and has held it in 27 quarters since. The position peaked at $140K in Q2 2026. 80 funds tracked by Wall St. Rank hold ECL as of Q3 2026.

  • Matthew Hamilton Rosenberg held 477 shares of Ecolab worth $131K as of Q3 2026.
  • Matthew Hamilton Rosenberg sold 25 Ecolab shares in Q3 2026, an estimated $6.94K.
  • Ecolab made up 0.02% of Matthew Hamilton Rosenberg's portfolio in Q3 2026, its #307 holding.
  • Matthew Hamilton Rosenberg first reported a position in Ecolab in Q1 2020 and has held it in 27 quarters since.
  • Matthew Hamilton Rosenberg's Ecolab position peaked at $140K in Q2 2026.
  • 80 funds tracked by Wall St. Rank held Ecolab as of Q3 2026.

Based on Matthew Hamilton Rosenberg's 13F filing for Q3 2026, filed 5 Oct 2026.