Stocks/Funds/CIK 1749768

Impax Asset Management Group plc

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1749768
Assets
$14.35B
-13.6% YoY
Holdings
287
Lifetime alpha vs market
-2.16% annual
Average hold time
4.8 yr
median 5.3 yr

Quarterly history

Cum return +39% vs S&P +52% · α -13% lifetimeAUM $14.3B · peak $27.3BFlow $-1.4B (-9%)2018-092019-122021-032022-062023-092024-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-2.68%
trims when stocks drop
when a holding falls −10%+
Middle response
-5.28%
baseline attrition
Rally response
-11.20%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
LINLinde plc$849M5.9%+7.9%3.3 yr
NVDANVIDIA Corporation$635M4.4%+60.9%5.3 yr
XYLXylem Inc.$548M3.8%+1.3%7.8 yr
KLACKLA Corporation$536M3.7%+118.2%3.5 yr
MSFTMicrosoft Corporation$440M3.1%-0.6%7.8 yr
AWKAmerican Water Works Com$383M2.7%-5.4%7.8 yr
WCNWaste Connections, Inc.$344M2.4%-16.2%1.8 yr
HUBBHubbell Incorporated$335M2.3%+50.1%7.8 yr
$319M2.2%1.5 yr
VLTOVeralto Corporation$299M2.1%-9.0%2.5 yr
AOSA. O. Smith Corporation$282M2.0%+3.0%7.0 yr
VRTVertiv Holdings Co$272M1.9%+247.5%6.3 yr
WMSAdvanced Drainage System$264M1.8%+26.9%7.8 yr
CTASCintas Corporation$254M1.8%-17.0%4.8 yr
EBAYeBay Inc.$247M1.7%+36.3%7.0 yr

Portfolio composition (YoY)

Industry mix
Industrial - Machinery12.2%-3.2pp$1.75B
Semiconductors12.1%+2.4pp$1.74B
Chemicals - Specialty7.6%+1.5pp$1.09B
Electrical Equipment & Parts4.7%+2.3pp$669M
Software - Infrastructure4.5%-2.0pp$644M
Regulated Water4.1%+0.9pp$589M
Hardware, Equipment & Parts4.0%-0.4pp$576M
Construction3.8%+0.1pp$548M
Software - Application3.7%-1.4pp$535M
Medical - Diagnostics & Research3.3%-2.1pp$477M
Country
US81.8%-2.3pp
GB7.7%-0.6pp
Unknown2.5%+1.3pp
CA2.4%+1.8pp
IE1.9%-0.5pp
BR1.4%+0.3pp
BM1.3%-0.3pp
UY0.2%+0.2pp
Top 5: 21.0% · Top 10: 32.7% · Top 25: 55.5%

Winners

TickerPrev $PnLYoY %
KLAC$264M+0.31B118.2%
NVDA$456M+0.28B60.9%
HUBB$303M+0.15B50.1%
SBS$193M+0.15B80.0%
MRVL$227M+0.14B61.3%

Losers

TickerPrev $PnLYoY %
VLTO$382M-0.03B-9.0%
CTAS$195M-0.03B-17.0%
AWK$341M-0.02B-5.4%
MAS$156M-0.02B-11.5%
WCN$100M-0.02B-16.2%

Top buys this quarter · 15

WCN Waste Connections, Inc.+$266M
KLAC KLA Corporation+$223M
NVDA NVIDIA Corporation+$106M
ITRI Itron, Inc.+$75M
QXO QXO, Inc.+$67M
AWK American Water Works Company, +$59M
ECL Ecolab Inc.+$36M
MELI MercadoLibre, Inc.+$30M
WAB Westinghouse Air Brake Technol+$28M
CTAS Cintas Corporation+$27M

Top sells this quarter · 15

WM Waste Management, Inc.$205M
AMAT Applied Materials, Inc.$203M
MSFT Microsoft Corporation$149M
IEX IDEX Corporation$144M
PNR Pentair plc$139M
CARR Carrier Global Corporation$134M
RSG Republic Services, Inc.$119M
RNR RenaissanceRe Holdings Ltd.$99M
A Agilent Technologies, Inc.$86M
MRVL Marvell Technology, Inc.$82M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$14.35B287+15.41%+17.59%-2.18%-1.41B
2025-12-31$15.98B279+12.99%+17.72%-4.73%-0.85B
2025-09-30$17.14B275+8.94%+17.52%-8.58%-1.50B
2025-06-30$17.39B280+10.87%+14.94%-4.07%-1.08B
2025-03-31$16.61B295-2.77%+8.30%-11.07%-4.71B
2024-12-31$22.08B312+10.43%+24.89%-14.46%-1.98B
2024-09-30$25.40B313+31.80%+36.04%-4.24%-1.38B
2024-06-30$24.57B315+14.15%+24.49%-10.35%-0.92B
2024-03-31$26.13B308+25.05%+29.62%-4.57%-1.18B
2023-12-31$24.91B366+22.21%+26.18%-3.96%-0.40B
2023-09-30$22.38B395+18.22%+21.57%-3.34%-1.11B
2023-06-30$24.88B388+23.17%+19.42%+3.75%-0.70B
2023-03-31$23.94B391-0.62%-7.82%+7.20%-0.01B
2022-12-31$22.35B381+9.37%+7.56%+1.81%+1.07B
2022-09-30$19.46B387-1.63%-4.93%+3.30%-0.88B
2022-06-30$20.67B421-13.77%-16.11%+2.34%-0.19B