Impax Asset Management Group plc
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 30, 2024), Impax Asset Management Group plc reported 308 stock positions worth $26.1 billion. Its top holding was Microsoft (MSFT) at 4.9% of the portfolio, followed by Linde (LIN, 4.8%) and American Water Works (AWK, 3.1%). Compared with Q4 2023, it opened 6 new positions, sold out of 64, added to 75 and reduced 154. The biggest buy was a new position in Renaissancere (RNR) and the biggest sale Aptiv Irish (APTV, shares −4%).
- Most Recent 13F
- Q2 2026
- Location
- LONDON, X0
- CIK
- 0001749768
- Portfolio Value
- $26.1B (Q1 2024)
- SEC Filing
- 0001749768-24-000011 ↗ filed Apr 30, 2024
Holdings Value
Holdings 308 stocks · $26.1B
| MSFT Microsoft Corp. | 4.91% | 3,050,129 | $1.3B | Add +0.1% |
| LIN Linde PLC | 4.76% | 2,683,023 | $1.2B | Reduce -4.7% |
| AWK American Water Works Co. Inc. | 3.11% | 6,654,512 | $812.4M | Add +19.1% |
| PNR Pentair PLC | 3.01% | 9,235,762 | $787.7M | Reduce -6.7% |
| CTAS Cintas Corp. | 2.34% | 890,726 | $611.1M | Reduce -20.9% |
| MA Mastercard Inc. Class A | 2.16% | 1,174,226 | $564.1M | Reduce -1.9% |
| AMAT Applied Materials Inc. | 2.14% | 2,715,821 | $559.3M | Add +4.3% |
| APTV Aptiv Irish Holdings Ltd. filed as APTIV PLC | 2.12% | 6,967,885 | $554.4M | Reduce -4.2% |
| TEL Te Connectivity Ltd. | 2.06% | 3,712,027 | $538.5M | Reduce -1.7% |
| IEX Idex Corp. | 1.83% | 1,962,332 | $478.8M | Reduce -10.4% |
| URI United Rentals Inc. | 1.66% | 603,614 | $434.7M | Reduce -26.4% |
| TMO Thermo Fisher Scientific Inc. | 1.56% | 704,952 | $408.7M | Reduce -6.5% |
| WMS Advanced Drainage Systems Inc. | 1.56% | 2,378,482 | $408.7M | Reduce -12.1% |
| DHR Danaher Corp. | 1.51% | 1,581,878 | $394.2M | Add +1.9% |
| VLTO Veralto Corp. | 1.50% | 4,433,319 | $392.5M | Add +4.7% |
| WM Waste Management Inc. | 1.42% | 1,737,194 | $370.3M | Reduce -6.0% |
| MSCI MSCI Inc. | 1.38% | 645,566 | $361.0M | Add +9.8% |
| HDB HDFC Bank Ltd.-ADR | 1.37% | 6,405,453 | $357.7M | Add +11.0% |
| RSG Republic Services Inc. | 1.36% | 1,852,635 | $354.7M | Reduce -8.9% |
| IQV Iqvia Holdings Inc. | 1.32% | 1,370,646 | $345.9M | Add +2.1% |
| CDNS Cadence Design SYS Inc. | 1.30% | 1,093,289 | $339.7M | Reduce -9.0% |
| V Visa Inc. Class A | 1.29% | 1,211,748 | $337.6M | Reduce -0.7% |
| WTS Watts Water Technologies-A | 1.29% | 1,583,817 | $335.9M | Reduce -0.9% |
| A Agilent Technologies Inc. | 1.26% | 2,271,370 | $330.5M | Reduce -3.9% |
| MRSH Marsh & McLennan Cos | 1.18% | 1,503,752 | $309.0M | Add +8.6% |
| ADI Analog Devices Inc. | 1.17% | 1,550,344 | $306.0M | Reduce -2.1% |
| BSX Boston Scientific Corp. | 1.17% | 4,465,066 | $305.1M | Add +2.8% |
| ZWS Zurn Elkay Water Solutions C | 1.15% | 9,005,126 | $300.8M | Reduce -11.2% |
| AOS Smith (a.o.) Corp. | 1.11% | 3,249,211 | $290.7M | Reduce -8.0% |
| RNR Renaissancere Holdings Ltd. | 1.07% | 1,190,845 | $279.3M | New |
| SBS Cia Saneamento Basico DE-ADR filed as COMPANHIA DE SANEAMENTO BASI | 1.04% | 16,174,743 | $271.4M | Reduce -10.8% |
| ADSK Autodesk Inc. | 1.02% | 1,018,830 | $265.3M | Reduce -1.6% |
| MTD Mettler-Toledo International | 1.01% | 198,512 | $264.3M | Add +2.9% |
| TXN Texas Instruments Inc. | 1.00% | 1,495,112 | $260.5M | Reduce -3.5% |
| CARR Carrier Global Corp. | 0.98% | 4,410,205 | $256.4M | Add +33.4% |
| XYL Xylem Inc. | 0.98% | 1,971,822 | $254.8M | Reduce -0.2% |
| HUBB Hubbell Inc. | 0.95% | 600,073 | $249.1M | Reduce -11.3% |
| WAT Waters Corp. | 0.94% | 714,371 | $245.9M | Reduce -4.1% |
| BDX Becton Dickinson and Co. | 0.93% | 985,782 | $243.3M | Add +7.2% |
| ORCL Oracle Corp. | 0.91% | 1,900,191 | $238.3M | Add +452.5% |
| VMI Valmont Industries | 0.82% | 941,368 | $214.9M | Add +17.3% |
| ANSS Ansys Inc. | 0.80% | 600,614 | $208.5M | Add +2.6% |
| PTC PTC Inc. | 0.79% | 1,093,229 | $205.3M | Reduce -11.7% |
| MAS Masco Corp. | 0.78% | 2,595,851 | $204.8M | Reduce -15.6% |
| TT Trane Technologies PLC | 0.78% | 675,389 | $202.8M | Reduce -30.6% |
| ECL Ecolab Inc. | 0.77% | 870,440 | $201.0M | Reduce -13.4% |
| STE Steris PLC | 0.76% | 887,134 | $198.7M | Reduce -8.1% |
| RYN Rayonier Inc. | 0.74% | 5,810,831 | $192.3M | Reduce -11.5% |
| LFUS Littelfuse Inc. | 0.72% | 781,259 | $188.4M | Add +6.5% |
| COO The Cooper Cos Inc. | 0.70% | 1,800,912 | $182.3M | Add +5.3% |
| ORA Ormat Technologies Inc. | 0.69% | 2,718,302 | $179.0M | Add +3.0% |
| TRMB Trimble Inc. | 0.67% | 2,747,478 | $176.0M | Reduce -37.1% |
| CHE Chemed Corp. | 0.65% | 265,969 | $170.7M | Add +2.7% |
| DAR Darling Ingredients Inc. | 0.63% | 3,575,540 | $165.6M | Reduce -5.7% |
| MPWR Monolithic Power Systems Inc. | 0.63% | 243,682 | $164.2M | Reduce -19.2% |
| SRCL Stericycle Inc. | 0.63% | 3,125,394 | $163.6M | Reduce -0.4% |
| CGNX Cognex Corp. | 0.62% | 3,839,595 | $162.9M | Add +35.1% |
| CCK Crown Holdings Inc. | 0.59% | 1,947,565 | $154.4M | Reduce -3.3% |
| ACM Aecom | 0.57% | 1,517,137 | $148.8M | No change |
| GNRC Generac Holdings Inc. | 0.56% | 1,163,291 | $145.9M | Add +0.6% |
| MWA Mueller Water Products Inc. Class A | 0.55% | 8,982,587 | $144.5M | Reduce -27.8% |
| GPK Graphic Packaging Holding Co. | 0.55% | 4,928,943 | $142.9M | Reduce -13.5% |
| ALTR Altair Engineering Inc. Class A | 0.54% | 1,659,449 | $142.1M | Reduce -12.7% |
| SITE Siteone Landscape Supply Inc. | 0.54% | 811,628 | $141.7M | Reduce -11.3% |
| AAPL Apple Inc. | 0.54% | 824,139 | $141.3M | Reduce -18.1% |
| LII Lennox International Inc. | 0.54% | 289,926 | $141.0M | Reduce -9.4% |
| GOOGL Alphabet Inc. Class A | 0.49% | 842,466 | $127.2M | Add +8.3% |
| IFF Intl Flavors & Fragrances filed as INTERNATIONAL FLAVORS&FRAGRA | 0.48% | 1,467,171 | $126.2M | Reduce -8.0% |
| KLAC KLA Corp. | 0.48% | 180,131 | $125.8M | Add +0.0% |
| RGEN Repligen Corp. | 0.48% | 681,020 | $124.5M | Reduce -25.4% |
| NVDA Nvidia Corp. | 0.47% | 137,263 | $124.0M | Add +530.1% |
| CLH Clean Harbors Inc. | 0.43% | 565,614 | $112.6M | Add +0.6% |
| BMI Badger Meter Inc. | 0.41% | 669,246 | $107.7M | Reduce -1.5% |
| FELE Franklin Electric Co. Inc. | 0.41% | 991,250 | $105.9M | No change |
| MKC McCormick & Co.-Non VTG SHRS | 0.36% | 1,240,572 | $95.3M | Add +16.7% |
| AZEK The Azek Co. Inc. | 0.35% | 1,842,444 | $91.7M | Reduce -9.7% |
| MRK Merck & Co. Inc. | 0.32% | 635,446 | $83.8M | Reduce -22.9% |
| JPM JPMorgan Chase & Co. | 0.31% | 408,572 | $81.8M | Add +1.2% |
| DIS The Walt Disney Co. filed as DISNEY WALT CO | 0.31% | 661,430 | $80.9M | Reduce -4.5% |
| VOYA Voya Financial Inc. | 0.29% | 1,042,620 | $77.1M | Reduce -0.8% |
| ABT Abbott Laboratories | 0.29% | 676,082 | $76.8M | Reduce -22.8% |
| VRT Vertiv Holdings Co. Class A | 0.27% | 858,594 | $70.1M | Reduce -50.7% |
| PG The Procter & Gamble Co. | 0.26% | 422,524 | $68.6M | Reduce -2.1% |
| HRI Herc Holdings Inc. filed as HERC HLDGS INC | 0.26% | 399,592 | $66.6M | Reduce -17.8% |
| CRM Salesforce Inc. | 0.25% | 219,736 | $66.2M | Reduce -1.8% |
| SEDG Solaredge Technologies Inc. | 0.25% | 935,102 | $66.0M | Reduce -2.0% |
| CSL Carlisle Cos Inc. | 0.24% | 159,631 | $62.6M | Reduce -20.4% |
| BALL Ball Corp. | 0.23% | 877,695 | $59.1M | Reduce -7.3% |
| DCI Donaldson Co. Inc. | 0.22% | 793,294 | $58.6M | Reduce -7.6% |
| NOW ServiceNow Inc. | 0.22% | 75,383 | $57.5M | Reduce -14.6% |
| CME Cme Group Inc. | 0.21% | 259,153 | $55.8M | Reduce -4.2% |
| FERG Ferguson Jersey Ltd. | 0.21% | 254,778 | $55.7M | Reduce -13.1% |
| HLT Hilton Worldwide Holdings Inc. | 0.21% | 257,305 | $54.9M | Reduce -3.2% |
| MRVL Marvell Technology Inc. | 0.21% | 769,608 | $54.5M | Reduce -1.1% |
| CVS CVS Health Corp. | 0.20% | 659,428 | $52.6M | Reduce -10.1% |
| TREX Trex Company Inc. | 0.19% | 509,594 | $50.8M | Reduce -26.7% |
| TGT Target Corp. | 0.19% | 278,354 | $49.3M | Reduce -14.3% |
| CL Colgate-Palmolive Co. | 0.19% | 542,738 | $48.9M | Reduce -10.7% |
| LOW Lowe's Cos Inc. | 0.18% | 184,850 | $47.1M | Reduce -1.1% |
| AVTR Avantor Inc. | 0.18% | 1,826,049 | $46.7M | Reduce -1.1% |
Portfolio Sells Q4 2023 → Q1 2024
| APTV Aptiv Irish Holdings Ltd. | Reduce -4.2% | 2.12% | −0.50 |
| CTAS Cintas Corp. | Reduce -20.9% | 2.34% | −0.38 |
| TRMB Trimble Inc. | Reduce -37.1% | 0.67% | −0.26 |
| AAPL Apple Inc. | Reduce -18.1% | 0.54% | −0.24 |
| URI United Rentals Inc. | Reduce -26.4% | 1.66% | −0.22 |
| RGEN Repligen Corp. | Reduce -25.4% | 0.48% | −0.18 |
| TT Trane Technologies PLC | Reduce -30.6% | 0.78% | −0.18 |
| CWT California Water Service Grp | Reduce -45.2% | 0.15% | −0.17 |
| MWA Mueller Water Products Inc. Class A | Reduce -27.8% | 0.55% | −0.17 |
| FISV Fiserv Inc. | Sold out | 0.00% | −0.16 |
| CCK Crown Holdings Inc. | Reduce -3.3% | 0.59% | −0.15 |
| RYN Rayonier Inc. | Reduce -11.5% | 0.74% | −0.14 |
| SYY Sysco Corp. | Reduce -94.2% | 0.01% | −0.14 |
| MPWR Monolithic Power Systems Inc. | Reduce -19.2% | 0.63% | −0.13 |
| DAR Darling Ingredients Inc. | Reduce -5.7% | 0.63% | −0.12 |
| SEDG Solaredge Technologies Inc. | Reduce -2.0% | 0.25% | −0.10 |
| ALTR Altair Engineering Inc. Class A | Reduce -12.7% | 0.54% | −0.09 |
| ABT Abbott Laboratories | Reduce -22.8% | 0.29% | −0.09 |
| STE Steris PLC | Reduce -8.1% | 0.76% | −0.09 |
| ADI Analog Devices Inc. | Reduce -2.1% | 1.17% | −0.09 |
| PTC PTC Inc. | Reduce -11.7% | 0.79% | −0.08 |
| IEX Idex Corp. | Reduce -10.4% | 1.83% | −0.08 |
| VRT Vertiv Holdings Co. Class A | Reduce -50.7% | 0.27% | −0.07 |
| SBS Cia Saneamento Basico DE-ADR | Reduce -10.8% | 1.04% | −0.07 |
| TEL Te Connectivity Ltd. | Reduce -1.7% | 2.06% | −0.07 |
| TXN Texas Instruments Inc. | Reduce -3.5% | 1.00% | −0.06 |
| AGCO Agco Corp. | Reduce -39.6% | 0.09% | −0.06 |
| AOS Smith (a.o.) Corp. | Reduce -8.0% | 1.11% | −0.06 |
| A Agilent Technologies Inc. | Reduce -3.9% | 1.26% | −0.05 |
| SITE Siteone Landscape Supply Inc. | Reduce -11.3% | 0.54% | −0.05 |
| WBA Walgreens Boots Alliance Inc. | Sold out | 0.00% | −0.05 |
| CE Celanese Corp. | Reduce -93.4% | 0.00% | −0.05 |
| WTS Watts Water Technologies-A | Reduce -0.9% | 1.29% | −0.05 |
| ZWS Zurn Elkay Water Solutions C | Reduce -11.2% | 1.15% | −0.04 |
| WAT Waters Corp. | Reduce -4.1% | 0.94% | −0.04 |
| MAS Masco Corp. | Reduce -15.6% | 0.78% | −0.04 |
| EQIX Equinix Inc. | Reduce -78.4% | 0.01% | −0.04 |
| MRK Merck & Co. Inc. | Reduce -22.9% | 0.32% | −0.04 |
| TMO Thermo Fisher Scientific Inc. | Reduce -6.5% | 1.56% | −0.04 |
| GOOG Alphabet Inc. Class C | Reduce -27.4% | 0.11% | −0.04 |
| TREX Trex Company Inc. | Reduce -26.7% | 0.19% | −0.04 |
| IFF Intl Flavors & Fragrances | Reduce -8.0% | 0.48% | −0.04 |
| HRI Herc Holdings Inc. | Reduce -17.8% | 0.26% | −0.03 |
| LII Lennox International Inc. | Reduce -9.4% | 0.54% | −0.03 |
| NBIX Neurocrine Biosciences Inc. | Reduce -54.5% | 0.03% | −0.03 |
| ECL Ecolab Inc. | Reduce -13.4% | 0.77% | −0.03 |
| CVS CVS Health Corp. | Reduce -10.1% | 0.20% | −0.03 |
| NOW ServiceNow Inc. | Reduce -14.6% | 0.22% | −0.03 |
| VRTX Vertex Pharmaceuticals Inc. | Reduce -19.6% | 0.11% | −0.03 |
| LULU Lululemon Athletica Inc. | Reduce -31.8% | 0.03% | −0.03 |
Portfolio Buys Q4 2023 → Q1 2024
| RNR Renaissancere Holdings Ltd. | New | 1.07% | +1.07 |
| ORCL Oracle Corp. | Add +452.5% | 0.91% | +0.77 |
| AMAT Applied Materials Inc. | Add +4.3% | 2.14% | +0.45 |
| NVDA Nvidia Corp. | Add +530.1% | 0.47% | +0.43 |
| MSFT Microsoft Corp. | Add +0.1% | 4.91% | +0.31 |
| CARR Carrier Global Corp. | Add +33.4% | 0.98% | +0.22 |
| BSX Boston Scientific Corp. | Add +2.8% | 1.17% | +0.16 |
| AWK American Water Works Co. Inc. | Add +19.1% | 3.11% | +0.15 |
| CGNX Cognex Corp. | Add +35.1% | 0.62% | +0.15 |
| MRSH Marsh & McLennan Cos | Add +8.6% | 1.18% | +0.13 |
| ULTA Ulta Beauty Inc. | Add +211.2% | 0.16% | +0.11 |
| VLTO Veralto Corp. | Add +4.7% | 1.50% | +0.11 |
| IQV Iqvia Holdings Inc. | Add +2.1% | 1.32% | +0.08 |
| MKC McCormick & Co.-Non VTG SHRS | Add +16.7% | 0.36% | +0.07 |
| MTD Mettler-Toledo International | Add +2.9% | 1.01% | +0.07 |
| VMI Valmont Industries | Add +17.3% | 0.82% | +0.07 |
| DHR Danaher Corp. | Add +1.9% | 1.51% | +0.07 |
| ROIV Roivant Sciences Ltd. | New | 0.06% | +0.06 |
| KLAC KLA Corp. | Add +0.0% | 0.48% | +0.06 |
| GOOGL Alphabet Inc. Class A | Add +8.3% | 0.49% | +0.05 |
| COO The Cooper Cos Inc. | Add +5.3% | 0.70% | +0.05 |
| MSCI MSCI Inc. | Add +9.8% | 1.38% | +0.05 |
| CHE Chemed Corp. | Add +2.7% | 0.65% | +0.05 |
| CLH Clean Harbors Inc. | Add +0.6% | 0.43% | +0.04 |
| SHLS Shoals Technologies Group -A | New | 0.04% | +0.04 |
| JPM JPMorgan Chase & Co. | Add +1.2% | 0.31% | +0.04 |
| BDX Becton Dickinson and Co. | Add +7.2% | 0.93% | +0.03 |
| OMC Omnicom Group | Add +1997.0% | 0.03% | +0.03 |
| CMI Cummins Inc. | Add +882.5% | 0.03% | +0.03 |
| CDW CDW Corp. | Add +1034.2% | 0.03% | +0.03 |
| BAH Booz Allen Hamilton Holdings | Add +560.2% | 0.03% | +0.03 |
| WTW Willis Towers Watson PLC | Add +1108.3% | 0.03% | +0.03 |
| GIS General Mills Inc. | Add +198.3% | 0.04% | +0.03 |
| KEY Keycorp | Add +15.1% | 0.16% | +0.03 |
| MAR Marriott International Class A | Add +261.8% | 0.04% | +0.03 |
| ETSY Etsy Inc. | Add +3756.5% | 0.03% | +0.03 |
| NFLX Netflix Inc. | Add +73.5% | 0.05% | +0.02 |
| ENPH Enphase Energy Inc. | Add +63.0% | 0.08% | +0.02 |
| SWAV Shockwave Medical Inc. | Add +5.3% | 0.05% | +0.02 |
| CSCO Cisco Systems Inc. | Add +84.2% | 0.04% | +0.02 |
| JNJ Johnson & Johnson | Add +36.5% | 0.07% | +0.02 |
| WY Weyerhaeuser Co. | Add +15.8% | 0.14% | +0.02 |
| AVGO Broadcom Inc. | Add +15.6% | 0.07% | +0.02 |
| ADC Agree Realty Corp. | Add +75.0% | 0.05% | +0.02 |
| USFD US Foods Holding Corp. | Add +11.7% | 0.07% | +0.01 |
| BMY Bristol-Myers Squibb Co. | Add +35.9% | 0.05% | +0.01 |
| LGND Ligand Pharmaceuticals | Add +24.4% | 0.07% | +0.01 |
| EXPE Expedia Group Inc. | Add +631.2% | 0.01% | +0.01 |
| HAS Hasbro Inc. | Add +257.1% | 0.01% | +0.01 |
| PANW Palo Alto Networks Inc. | Add +15.0% | 0.15% | +0.01 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 284 | $15.4B | KLAC, NVDA, LIN, XYL, MSFT |
| Q1 2026 | 287 | $14.3B | LIN, NVDA, XYL, KLAC, MSFT |
| Q4 2025 | 279 | $16.0B | LIN, MSFT, XYL, NVDA, HUBB |
| Q3 2025 | 275 | $17.1B | LIN, MSFT, XYL, NVDA, VLTO |
| Q2 2025 | 280 | $17.4B | LIN, MSFT, XYL, NVDA, PNR |
| Q1 2025 | 295 | $16.6B | LIN, MSFT, XYL, NVDA, PNR |
| Q4 2024 | 312 | $22.1B | MSFT, LIN, NVDA, XYL, AWK |
| Q3 2024Amended | 313 | $25.4B | MSFT, LIN, AWK, PNR, NVDA |
| Q2 2024Amended | 315 | $24.6B | MSFT, LIN, AWK, PNR, AMAT |
| Q1 2024 | 308 | $26.1B | MSFT, LIN, AWK, PNR, CTAS |