ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionHerold Advisors, Inc.
Latest Disclosed Ownership3,600 shares
Latest Disclosed Value $ 310,069
Herold Advisors, Inc. ownership in OGS / ONE Gas, Inc.

On May 14, 2026 - Herold Advisors, Inc. filed a 13F-HR form disclosing ownership of 3,600 shares of ONE Gas, Inc. (MX:OGS) valued at $310,069 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,600 shares of ONE Gas, Inc.. This represents a change in shares of 0.00% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ONE GAS COM 68235P108 3,600 0 0.00 310 11.51 0.0681
2026-02-17 2025-12-31 13F ONE GAS COM 68235P108 3,600 0 0.00 278 -4.47 0.0621
2025-11-13 2025-09-30 13F ONE GAS COM 68235P108 3,600 0 0.00 291 12.79 0.0675
2025-08-14 2025-06-30 13F ONE GAS COM 68235P108 3,600 -350 -8.86 259 -13.42 0.0542
2025-05-13 2025-03-31 13F ONE GAS COM 68235P108 3,950 350 9.72 299 19.68 0.0656
2025-02-14 2024-12-31 13F ONE GAS COM 68235P108 3,600 0 0.00 249 -6.74 0.0543
2024-11-14 2024-09-30 13F ONE GAS COM 68235P108 3,600 0 0.00 268 16.59 0.0582
2024-07-24 2024-06-30 13F ONE GAS COM 68235P108 3,600 -2,500 -40.98 230 -41.73 0.0532
2024-05-10 2024-03-31 13F ONE GAS COM 68235P108 6,100 -100 -1.61 394 -0.51 0.0952
2024-02-02 2023-12-31 13F ONE GAS COM 68235P108 6,200 -66 -1.05 395 -7.49 0.1093
2023-11-08 2023-09-30 13F ONE GAS COM 68235P108 6,266 66 1.06 428 -10.29 0.1302
2023-07-17 2023-06-30 13F ONE GAS COM 68235P108 6,200 -400 -6.06 476 -8.81 0.1458
2023-04-19 2023-03-31 13F ONE GAS COM 68235P108 6,600 0 0.00 523 4.61 0.1807
2023-02-14 2022-12-31 13F ONE GAS COM 68235P108 6,600 0 0.00 500 7.54 0.2116
2022-11-08 2022-09-30 13F ONE GAS INC COM COM 68235P108 6,600 0 0.00 464 -13.27 0.2231
2022-07-15 2022-06-30 13F ONE GAS INC COM COM 68235P108 6,600 0 0.00 535 -99.91 0.2384
2022-05-09 2022-03-31 13F ONE GAS INC COM COM 68235P108 6,600 0 0.00 582,384 113,646.88 0.2071
2022-01-20 2021-12-31 13F ONE GAS INC COM COM 68235P108 6,600 -950 -12.58 512 7.11 0.1989
2021-11-03 2021-09-30 13F ONE GAS INC COM COM 68235P108 7,550 7,550 478 0.1860
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.