DUFF & PHELPS INVESTMENT MANAGEMENT CO

CIK

765443

City

CHICAGO

State / Country

IL

Stock

WMS — Advanced Drainage Systems, Inc.

Top Portfolio Positions

144 positions · $9,533,458,290 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio	Open
WELL	Welltower Inc. Real Estate	2,632,540	$520,479,483	5.46%
EQIX	Equinix Inc Real Estate	472,583	$463,244,759	4.86%
PLD	Prologis, Inc. Real Estate	2,989,856	$395,199,165	4.15%
DLR	Digital Realty Trust, Inc. Real Estate	1,546,930	$278,772,254	2.92%
VTR	Ventas, Inc. Real Estate	2,611,874	$213,599,055	2.24%
SRE	Sempra Utilities	2,086,667	$202,761,431	2.13%
XEL	Xcel Energy Inc Utilities	2,424,903	$192,634,293	2.02%
NEE	Nextera Energy Inc Utilities	1,921,380	$178,457,774	1.87%
ETR	Entergy Corp /De/ Utilities	1,532,230	$172,161,362	1.81%
CNP	Centerpoint Energy Inc Utilities	3,866,699	$166,886,728	1.75%

Portfolio Trend

25 quarters · across all stocks

Holdings in WMS

Compact Export CSV

Shares Held

Position Value (USD)

15 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$19,147,324	139,629	+0.0%	Shares	Sole	2026-04-28
2025-12-31	$20,219,136	139,606	+2.2%	Shares	Sole	2026-01-26
2025-09-30	$18,940,594	136,558	+7.5%	Shares	Sole	2025-11-13
2025-06-30	$14,596,179	127,078	-17.3%	Shares	Sole	2025-08-11
2025-03-31	$16,687,988	153,594	-3.7%	Shares	Sole	2025-05-13
2024-12-31	$18,429,414	159,424	+4.2%	Shares	Sole	2025-02-12
2024-09-30	$24,038,250	152,954	+28.3%	Shares	Sole	2024-11-15
2024-06-30	$19,118,488	119,200	0.0%	Shares	Sole	2024-08-15
2024-03-31	$20,531,008	119,200	0.0%	Shares	Sole	2024-05-14
2023-12-31	$16,764,288	119,200	-4.8%	Shares	Sole	2024-02-05
2023-09-30	$14,251,516	125,200	-10.7%	Shares	Sole	2023-11-13
2023-06-30	$15,951,956	140,200	-24.3%	Shares	Sole	2023-08-03
2023-03-31	$15,595,692	185,200	+27.5%	Shares	Sole	2023-05-10
2022-12-31	$11,902,044	145,200	0.0%	Shares	Sole	2023-02-08
2022-09-30	$18,058,524	145,200	—	Shares	Sole	2022-11-14
No 13F history on record for this holder in this stock.