ATO β€” Atmos Energy Corp.

Ownership history in ALBERT D MASON INC  Β·  31 quarters on record

AI Ownership Summary

ALBERT D MASON INC reported Atmos Energy Corp. (ATO) in 31 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 1.37% in 2025 Q3. The latest visible filing shows ATO at 1.36% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this ATO ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ALBERT D MASON INC's position in Atmos Energy Corp., and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

ATO was reported at 1.36% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.37% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How ALBERT D MASON INC held ATO β€” position size vs. price
% of Fund (quarterly)    ATO price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 9 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 12,325 +8 +0.1% 1.36% $2.1M 2026-02-14 (Est.) $178.26
2025 Q3 ADDED 12,317 +3,832 +45.2% 1.37% $2.1M 2025-10-15 $177.18
2025 Q2 REDUCED 8,485 -1,568 -15.6% 0.95% $1.3M 2025-07-29 $153.56
2025 Q1 ADDED 10,053 +188 +1.9% 1.06% $1.6M 2025-04-16 $152.91
2024 Q4 ADDED 9,865 +77 +0.8% 0.92% $1.4M 2025-01-15 $137.21
2024 Q3 REDUCED 9,788 -68 -0.7% 0.87% $1.4M 2024-10-22 $137.23
2024 Q2 ADDED 9,856 +31 +0.3% 0.78% $1.1M 2024-07-16 $117.56
2024 Q1 ADDED 9,825 +72 +0.7% 0.72% $1.2M 2024-04-24 $113.22
2023 Q4 REDUCED 9,753 -13 -0.1% 0.75% $1.1M 2024-01-03 $111.82
22 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding ATO

As of 2026 Q1 β€” sorted by position size

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FAQ About ALBERT D MASON INC and ATO

These are the practical questions this page is built to answer before you even open the full history table.

How long has ALBERT D MASON INC reported owning ATO?

ALBERT D MASON INC reported ATO across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported ATO position in ALBERT D MASON INC's portfolio?

The largest reported portfolio weight for ATO was 1.37% in 2025 Q3.

What is the latest reported ATO position on this page?

The most recent filing on this page is 2025 Q4, when ALBERT D MASON INC reported 12,325 shares, equal to 1.36% of portfolio, with an estimated market value of $2.1M.

What does the chart on this ATO ownership page compare?

The chart compares ALBERT D MASON INC's quarterly ATO portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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