JOHN G ULLMAN & ASSOCIATES INC

Position in MDU — Mdu Resources Group Inc

CIK 919530 CORNING, NY

Position in MDU

as of Mar 31, 2026 · filed May 6, 2026 Compact

Position Value

$7,803,980

+$202,502 QoQ

Shares Held

376,640

-3.3% QoQ

Ownership

0.180%

of shares outstanding

% of Portfolio

1.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Utilities · as of Mar 31, 2026

JOHN G ULLMAN & ASSOCIATES INC holds $17,778,533 across 3 Utilities - Regulated Gas names. MDU ranks #1 (43.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MDU	Mdu Resources Group Inc This page	376,640	$7,803,980
2	NJR	New Jersey Resources Corp	117,260	$6,439,919
3	BKH	Black Hills Corp /Sd/	50,924	$3,534,634

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$7,803,980	376,640	-3.3%	Shares	Sole	2026-05-06
2025-12-31	$7,601,478	389,420	-0.6%	Shares	Sole	2026-02-05
2025-09-30	$6,976,533	391,720	-0.7%	Shares	Sole	2025-11-05
2025-06-30	$6,572,930	394,297	-0.5%	Shares	Sole	2025-07-29
2025-03-31	$6,699,116	396,163	-0.4%	Shares	Sole	2025-05-06
2024-12-31	$7,168,247	397,794	-1.2%	Shares	Sole	2025-02-05
2024-09-30	—	402,782	-0.9%	Shares	Sole	2024-11-08
2024-06-30	—	406,609	-1.2%	Shares	Sole	2024-08-08
2024-03-31	—	411,568	-0.9%	Shares	Sole	2024-05-06
2023-12-31	—	415,116	-0.7%	Shares	Sole	2024-01-31
2023-09-30	—	417,866	-1.0%	Shares	Sole	2023-11-01
2023-06-30	—	422,166	+3.2%	Shares	Sole	2023-08-21
2023-03-31	—	409,201	-0.7%	Shares	Sole	2023-05-05
2022-12-31	—	412,061	-1.0%	Shares	Sole	2023-02-08
2022-09-30	—	416,029	-2.4%	Shares	Sole	2022-10-19
2022-06-30	—	426,091	-22.6%	Shares	Sole	2022-07-27
2022-03-31	—	550,352	+4.8%	Shares	Sole	2022-04-29
2021-12-31	—	524,927	-0.5%	Shares	Sole	2022-01-26
2021-09-30	—	527,827	-0.8%	Shares	Sole	2021-11-02
2021-06-30	—	532,194	-10.6%	Shares	Sole	2021-07-23
2021-03-31	—	595,336	-3.0%	Shares	Sole	2021-04-22
2020-12-31	—	613,736	+4.6%	Shares	Sole	2021-02-05
2020-09-30	—	586,886	+12.8%	Shares	Sole	2020-11-06
2020-06-30	—	520,174	+38.1%	Shares	Sole	2020-07-29
2020-03-31	—	376,664	—	Shares	Sole	2020-04-14
No filing history on record for this holder in this stock.