HENNESSY ADVISORS INC

Position in OGS — ONE Gas, Inc.

CIK 1145255 NOVATO, CA

Position in OGS

as of Mar 31, 2026 · filed Apr 21, 2026 Compact

Position Value

$6,552,339

+$675,546 QoQ

Shares Held

76,075

0.0% QoQ

Ownership

0.121%

of shares outstanding

% of Portfolio

0.24%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Utilities · as of Mar 31, 2026

HENNESSY ADVISORS INC holds $93,703,023 across 12 Utilities - Regulated Gas names. OGS ranks #5 (7.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ATO	Atmos Energy Corp	143,286	$26,467,789
2	NI	Nisource Inc.	358,481	$16,726,723
3	UGI	Ugi Corp /Pa/	346,152	$12,606,855
4	SWX	Southwest Gas Holdings, Inc.	90,417	$7,857,237
5	OGS	ONE Gas, Inc. This page	76,075	$6,552,339
6	NJR	New Jersey Resources Corp	106,134	$5,828,879
7	SR	Spire Inc	52,241	$4,729,900
8	MDU	Mdu Resources Group Inc	179,707	$3,723,529

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,552,339	76,075	0.0%	Shares	Sole	2026-04-21
2025-12-31	$5,876,793	76,075	-3.5%	Shares	Sole	2026-01-27
2025-09-30	$6,384,142	78,875	-13.0%	Shares	Sole	2025-10-20
2025-06-30	$6,515,905	90,675	+2.4%	Shares	Sole	2025-07-21
2025-03-31	$6,695,384	88,575	+0.9%	Shares	Sole	2025-04-16
2024-12-31	$6,078,418	87,775	+2.8%	Shares	Sole	2025-01-15
2024-09-30	$6,353,607	85,375	-3.7%	Shares	Sole	2024-10-16
2024-06-30	$5,661,898	88,675	+1.7%	Shares	Sole	2024-07-23
2024-03-31	$5,625,402	87,175	-2.6%	Shares	Sole	2024-04-16
2023-12-31	$5,701,347	89,475	-2.6%	Shares	Sole	2024-01-18
2023-09-30	$6,273,225	91,875	-0.4%	Shares	Sole	2023-10-18
2023-06-30	$7,087,642	92,275	-4.0%	Shares	Sole	2023-07-17
2023-03-31	$7,612,022	96,075	0.0%	Shares	Sole	2023-04-14
2022-12-31	$7,274,799	96,075	-8.8%	Shares	Sole	2023-01-20
2022-09-30	$7,417,346	105,375	0.0%	Shares	Sole	2022-11-08
2022-06-30	$8,555,396	105,375	-6.4%	Shares	Sole	2022-08-12
2022-03-31	$9,933,618	112,575	-1.1%	Shares	Sole	2022-05-12
2021-12-31	$8,835,561	113,875	-14.6%	Shares	Sole	2022-01-25
2021-09-30	$8,451,973	133,375	-3.3%	Shares	Sole	2021-10-12
2021-06-30	$10,219,295	137,875	-2.8%	Shares	Sole	2021-07-28
2021-03-31	$10,911,606	141,875	-1.2%	Shares	Sole	2021-04-19
2020-12-31	$11,022,252	143,575	-16.8%	Shares	Sole	2021-01-25
2020-09-30	$11,909,400	172,575	-10.1%	Shares	Sole	2020-10-16
2020-06-30	$14,783,968	191,875	-3.0%	Shares	Sole	2020-07-20
2020-03-31	$16,546,307	197,875	—	Shares	Sole	2020-04-14
No filing history on record for this holder in this stock.