Institutional Manager · CIK 0001749768
Impax Asset Management Group plc
LONDON, X0 · File #028-18939
Latest AUM
$15.98B
Positions
279
Top-10 Concentration
40.5%
Filings
12
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | Ormat Technologies Inc | ORA | -1,086,369 | -$120.0M | +$26.4M |
| NEW | Tetra Tech Inc | TTEK | +3,208,190 | +$107.6M | $0 |
| NEW | Tyler Technologies Inc | TYL | +235,136 | +$106.7M | $0 |
| ADD | American Water Works Co Inc | 030420103 | +657,849 | +$85.8M | -$15.0M |
| REDUCE | Synopsys Inc | SNPS | -179,146 | -$84.1M | -$13.4M |
| REDUCE | Oracle Corp | ORCL-PD | -431,382 | -$84.1M | -$52.0M |
| ADD | Citizens Financial Group Inc | CIA | +1,391,483 | +$81.3M | +$1.8M |
| ADD | ServiceNow Inc | NOW | +477,057 | +$73.1M | -$89.9M |
| REDUCE | RenaissanceRe Holdings Ltd | RNR-PG | -250,556 | -$70.4M | +$33.2M |
| REDUCE | Veralto Corp | VLTO | -694,352 | -$69.3M | -$25.4M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025279 pos · $15.98B
- 13F HOLDINGS REPORTQ/E Sep 2025275 pos · $17.14B
- 13F HOLDINGS REPORTQ/E Jun 2025280 pos · $17.39B
- 13F HOLDINGS REPORTQ/E Mar 2025295 pos · $16.61B
- 13F HOLDINGS REPORTQ/E Dec 2024312 pos · $22.08B
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2024315 pos · $24.57B
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2024313 pos · $25.40B
- 13F HOLDINGS REPORTQ/E Sep 2024311 pos · $25.37B
- 13F HOLDINGS REPORTQ/E Jun 2024313 pos · $24.54B
- 13F HOLDINGS REPORTQ/E Mar 2024308 pos · $26.13B
- 13F HOLDINGS REPORT (Amended)Q/E Dec 2023395 pos · $22.38B
- 13F HOLDINGS REPORTQ/E Dec 2023395 pos · $22.38B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Linde PLC | LIN | 1,841,939 | $785.4M | 6.63% |
| 2 | Microsoft Corp | MSFT | 1,591,543 | $769.7M | 6.49% |
| 3 | Xylem Inc/NY | XYL | 4,881,208 | $664.7M | 5.61% |
| 4 | NVIDIA Corp | NVDA | 3,034,256 | $565.9M | 4.77% |
| 5 | Hubbell Inc | HUBB | 820,499 | $364.4M | 3.07% |
| 6 | Agilent Technologies Inc | A | 2,595,597 | $353.2M | 2.98% |
| 7 | Pentair PLC | PNR | 3,311,159 | $344.8M | 2.91% |
| 8 | Aptiv PLC | APTV | 4,269,536 | $324.9M | 2.74% |
| 9 | Veralto Corp | VLTO | 3,145,370 | $313.8M | 2.65% |
| 10 | American Water Works Co Inc | 030420103 | 2,386,873 | $311.5M | 2.63% |
| 11 | A O Smith Corp | AOS | 4,649,544 | $311.0M | 2.62% |
| 12 | IDEX Corp | 45167R104 | 1,708,816 | $304.1M | 2.57% |
| 13 | Advanced Drainage Systems Inc | 00790R104 | 2,066,723 | $299.3M | 2.53% |
| 14 | eBay Inc | EBAY | 3,134,733 | $273.0M | 2.30% |
| 15 | RenaissanceRe Holdings Ltd | RNR-PG | 969,868 | $272.7M | 2.30% |
| 16 | Marvell Technology Inc | MRVL | 3,142,554 | $267.1M | 2.25% |
| 17 | KLA Corp | KLAC | 212,473 | $258.2M | 2.18% |
| 18 | Cintas Corp | CTAS | 1,346,262 | $253.2M | 2.14% |
| 19 | Waste Management Inc | 94106L109 | 1,009,080 | $221.7M | 1.87% |
| 20 | Applied Materials Inc | 038222105 | 854,529 | $219.6M | 1.85% |