ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionNomura Asset Management Co Ltd
Latest Disclosed Ownership710 shares
Latest Disclosed Value $ 61,152
Nomura Asset Management Co Ltd ownership in OGS / ONE Gas, Inc.

On May 11, 2026 - Nomura Asset Management Co Ltd filed a 13F-HR form disclosing ownership of 710 shares of ONE Gas, Inc. (MX:OGS) valued at $61,152 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 710 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)
2026-05-11 2026-03-31 13F ONE GAS COM 68235P108 710 0 0.00 61 12.96 0.0002
2026-02-10 2025-12-31 13F ONE GAS COM 68235P108 710 -7,053 -90.85 55 -91.40 0.0001
2025-11-12 2025-09-30 13F ONE GAS COM 68235P108 7,763 0 0.00 628 12.75 0.0016
2025-08-11 2025-06-30 13F ONE GAS COM 68235P108 7,763 0 0.00 558 -4.95 0.0015
2025-05-12 2025-03-31 13F ONE GAS COM 68235P108 7,763 7,053 993.38 587 1,095.92 0.0018
2025-02-12 2024-12-31 13F ONE GAS COM 68235P108 710 0 0.00 49 -5.77 0.0001
2024-11-15 2024-09-30 13F ONE GAS COM 68235P108 710 210 42.00 53 67.74 0.0002
2024-08-14 2024-06-30 13F ONE GAS COM 68235P108 500 0 0.00 32 -3.12 0.0001
2024-05-13 2024-03-31 13F ONE GAS COM 68235P108 500 0 0.00 32 3.23 0.0001
2024-02-09 2023-12-31 13F ONE GAS COM 68235P108 500 0 0.00 32 -8.82 0.0001
2023-11-03 2023-09-30 13F ONE GAS COM 68235P108 500 0 0.00 34 -10.53 0.0002
2023-08-14 2023-06-30 13F ONE GAS COM 68235P108 500 0 0.00 38 -2.56 0.0002
2025-01-10 2023-03-31 13F/A-1 ONE GAS COM 68235P108 500 0 0.00 40 5.41 0.0002
2023-05-11 2023-03-31 13F ONE GAS COM 68235P108 500 0 40 0.0002
2025-01-10 2022-12-31 13F/A-1 ONE GAS COM 68235P108 500 0 0.00 38 5.71 0.0002
2023-02-14 2022-12-31 13F ONE GAS COM 68235P108 500 0 38 0.0002
2025-01-10 2022-09-30 13F/A-3 ONE GAS COM 68235P108 500 0 0.00 35 -12.50 0.0002
2022-11-14 2022-09-30 13F/A-2 ONE GAS COM 68235P108 500 0 35 0.0002
2022-11-10 2022-09-30 13F/A-1 ONE GAS COM 68235P108 500 0 35 0.0002
2022-11-10 2022-09-30 13F ONE GAS COM 68235P108 500 0 35 0.0001
2025-01-10 2022-06-30 13F/A-1 ONE GAS COM 68235P108 500 0 0.00 41 -9.09 0.0003
2022-08-12 2022-06-30 13F ONE GAS COM 68235P108 500 0 41 0.0003
2025-01-10 2022-03-31 13F/A-1 ONE GAS COM 68235P108 500 0 0.00 44 15.79 0.0002
2022-05-13 2022-03-31 13F ONE GAS COM 68235P108 500 0 44 0.0002
2025-01-10 2021-12-31 13F/A-2 ONE GAS COM 68235P108 500 0 0.00 39 22.58 0.0002
2022-02-01 2021-12-31 13F ONE GAS COM 68235P108 500 0 39 0.0002
2025-01-10 2021-09-30 13F/A-2 ONE GAS COM 68235P108 500 500 32 0.0002
2021-11-12 2021-09-30 13F ONE GAS COM 68235P108 500 500 32 0.0002
2022-11-22 2020-09-30 13F/A-1 ONE GAS COM 68235P108 0 -250 -100.00 0 -100.00
2020-11-12 2020-09-30 13F ONE GAS COM 68235P108 0 -250 0
2020-08-13 2020-06-30 13F ONE GAS COM 68235P108 250 250 19 0.0002
2020-02-13 2019-12-31 13F ONE GAS COM 68235P108 0 -250 -100.00 0 -100.00
2019-11-13 2019-09-30 13F ONE GAS COM 68235P108 250 -270 -51.92 24 -48.94 0.0002
2019-08-13 2019-06-30 13F ONE GAS COM 68235P108 520 520 47 0.0005
2017-08-14 2017-06-30 13F ONE GAS COM 68235P108 0 -360 -100.00 0 -100.00
2017-06-28 2017-03-31 13F/A-1 ONE GAS COM 68235P108 360 0 0.00 24 4.35 0.0003
2017-05-12 2017-03-31 13F ONE GAS COM 68235P108 360 24
2017-02-14 2016-12-31 13F ONE GAS COM 68235P108 360 360 23 0.0004
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.