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HENNESSY ADVISORS INC

Position in ATO — Atmos Energy Corp

CIK 1145255 NOVATO, CA

Position in ATO

as of Mar 31, 2026 · filed Apr 21, 2026
Position Value
$26,467,789
+$2,264,364 QoQ
Shares Held
143,286
-0.8% QoQ
Ownership
0.086%
of shares outstanding
% of Portfolio
0.97%
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")%

Common Shares in ATO Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Gas

Utilities · as of Mar 31, 2026

HENNESSY ADVISORS INC holds $93,703,023 across 12 Utilities - Regulated Gas names. ATO ranks #1 (28.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ATO
Atmos Energy Corp
This page
143,286 $26,467,789

All Filings in ATO

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $26,467,789 143,286
2025-12-31 $24,203,425 144,386
2025-09-30 $25,285,684 148,086
2025-06-30 $25,318,115 164,286
2025-03-31 $24,854,299 160,786
2024-12-31 $24,077,833 172,886
2024-09-30 $24,521,986 176,786
2024-06-30 $21,951,896 188,186
2024-03-31 $21,787,206 183,286
2023-12-31 $22,853,857 197,186
2023-09-30 $21,703,573 204,886
2023-06-30 $23,824,803 204,786
2023-03-31 $24,841,222 221,086
2022-12-31 $25,539,184 227,886
2022-09-30 $26,061,989 255,886
2022-06-30 $29,985,180 267,486
2022-03-31 $29,273,377 244,986
2021-12-31 $26,882,515 256,586
2021-09-30 $25,162,225 285,286
2021-06-30 $26,150,185 272,086
2021-03-31 $26,421,221 267,286
2020-12-31 $26,871,751 281,586
2020-09-30 $27,136,662 283,886
2020-06-30 $30,181,303 303,086
2020-03-31 $31,662,903 319,086