13F INSTITUTION · CIK 0001749768 · 2026-Q2 · filed Aug 11, 2026

Impax Asset Management Group

IMPAX ASSET MANAGEMENT GROUP PLC
$15.4B
13F long value · 2026-Q2
Positions284
CategoryAsset Manager
Quarters tracked8
● #403 of 581 by 13F value
Size rank 4/10
4 NEW25 ADD12 2×+32 TRIM5 NEAR EXIT2 EXIT
Snapshot
Impax Asset Management Group's 13F portfolio at a glance — size, concentration and this quarter's activity.
13F value (AUM)
$15.4B
Positions
284 (18 unmapped)
Top 100 weight
89.8%
Quarters tracked
8
Latest 13F filed
Aug 11, 2026
New positions
4
Exits / near-exits
7
13F value by quarter
Total reported long value each quarter — fund flows plus market moves.
$25.4B
2024-Q3
$22.1B
2024-Q4
$16.6B
2025-Q1
$17.4B
2025-Q2
$17.1B
2025-Q3
$16.0B
2025-Q4
$14.3B
2026-Q1
$15.4B
2026-Q2
Top holdings — 2026-Q2
The fund's largest reported positions. The 100 shown cover 89.8% of the portfolio.
TickerIssuerWeightValueSharesSince 2026-Q2
KLAC KLA Corp4.9%$749.0M2.5M+529.7%
NVDA NVIDIA Corp4.8%$744.9M3.7M+15.4%
— Linde PLC4.8%$736.6M1.4M—
XYL Xylem Inc/NY3.4%$528.3M4.5M+4.5%
MSFT Microsoft Corp3.3%$503.8M1.4M+37.5%
AWK American Water Works Co Inc3.1%$471.5M3.6M+0.3%
VLTO Veralto Corp3.0%$459.9M5.2M-1.7%
CTAS Cintas Corp2.7%$410.5M2.4M—
WCN Waste Connections Inc2.1%$329.9M2.0M-3.1%
SBS Cia de Saneamento Basico do Es2.0%$302.4M52.3M+489.8%
WMS Advanced Drainage Systems Inc1.9%$289.7M1.8M—
ECL Ecolab Inc1.8%$275.4M988.4K-3.9%
HUBB Hubbell Inc1.7%$254.7M486.9K+6.1%
— Aptiv PLC1.6%$250.9M4.1M—
VRT Vertiv Holdings Co1.6%$244.3M729.5K-3.7%
Quarterly changes — 2026-Q2
What Impax Asset Management Group opened, added, trimmed and exited this quarter, largest dollar moves first.
ActionTickerIssuerPrev sharesCurr sharesChangeValue Δ
TRIMKLACKLA Corp363.8K2.5M-31.8%+$213.4M
NEAR EXITEBAYeBay Inc2.7M491.8K-81.9%-$192.2M
2×+APHAmphenol Corp344.5K1.2M+246.9%+$167.2M
ADDVLTOVeralto Corp3.4M5.2M+53.6%+$161.4M
ADDCTASCintas Corp1.5M2.4M+60.5%+$156.1M
NEWBMIBadger Meter Inc—945.7K—+$140.3M
NEAR EXITZTSZoetis Inc1.3M220.4K-83.2%-$139.1M
2×+DEDeere & Co18.5K230.1K+1141.8%+$135.5M
TRIMAOSA O Smith Corp4.3M2.8M-34.2%-$105.6M
2×+NEENextEra Energy Inc45.3K1.2M+2495.4%+$99.0M
Conviction over time
Portfolio weight of the current top long holdings, quarter by quarter — rising weight = growing conviction.
KLAC 4.9%
NVDA 4.8%
XYL 3.4%
MSFT 3.3%
AWK 3.1%
VLTO 3.0%
CTAS 2.7%
WCN 2.1%
SBS 2.0%