Mdu Resources Group Inc (MDU)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	25,788,314	$436,080,382	0.01%
2.	Allspring Global Investments Holdings, Llc	2,276,045	$38,533,441	0.07%
3.	Bank Of New York Mellon Corp	2,022,319	$34,197,420	0.01%
4.	Hennessy Advisors Inc	1,977,407	$33,437,952	1.11%
5.	Massachusetts Financial Services Co	1,012,435	$17,120,276	0.01%