ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership288,893 shares
Latest Disclosed Value $ 24,882,356
Legal & General Group Plc reports 7.61% decrease in ownership of OGS / ONE Gas, Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 288,893 shares of ONE Gas, Inc. (MX:OGS) valued at $24,882,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 312,694 shares of ONE Gas, Inc.. This represents a change in shares of -7.61% 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)
2026-05-08 2026-03-31 13F ONE GAS COM 68235P108 288,893 -23,801 -7.61 24,882 3.01 0.0031
2026-02-09 2025-12-31 13F ONE GAS COM 68235P108 312,694 -30,499 -8.89 24,156 -13.04 0.0054
2025-11-13 2025-09-30 13F ONE GAS COM 68235P108 343,193 -24,061 -6.55 27,778 5.26 0.0062
2025-08-12 2025-06-30 13F ONE GAS COM 68235P108 367,254 19,261 5.53 26,391 0.33 0.0066
2025-05-15 2025-03-31 13F ONE GAS COM 68235P108 347,993 4,805 1.40 26,305 10.68 0.0072
2025-02-13 2024-12-31 13F ONE GAS COM 68235P108 343,188 -7,460 -2.13 23,766 -8.93 0.0063
2025-02-28 2024-09-30 13F/A-2 ONE GAS COM 68235P108 350,648 -55 -0.02 26,095 16.54 0.0069
2024-11-14 2024-09-30 13F/A-1 ONE GAS COM 68235P108 359,007 1,418 26,717 0.0056
2024-11-14 2024-09-30 13F ONE GAS COM 68235P108 359,007 1,418 26,717 0.0028
2025-05-29 2024-06-30 13F/A-1 ONE GAS COM 68235P108 350,703 -28,003 -7.39 22,392 -8.37 0.0063
2024-08-14 2024-06-30 13F ONE GAS COM 68235P108 357,589 -21,117 22,832 0.0051
2025-05-29 2024-03-31 13F/A-2 ONE GAS COM 68235P108 378,706 -4,227 -1.10 24,438 0.15 0.0070
2024-07-01 2024-03-31 13F/A-1 ONE GAS COM 68235P108 378,706 -4,227 24,438 0.0057
2024-05-14 2024-03-31 13F ONE GAS COM 68235P108 378,706 -4,227 24,438 0.0029
2025-05-29 2023-12-31 13F/A-1 ONE GAS COM 68235P108 382,933 22,668 6.29 24,400 -0.80 0.0076
2024-02-15 2023-12-31 13F ONE GAS COM 68235P108 382,933 22,668 24,400 0.0063
2023-11-14 2023-09-30 13F ONE GAS COM 68235P108 360,265 -1,332 -0.37 24,599 -11.44 0.0086
2023-08-14 2023-06-30 13F ONE GAS COM 68235P108 361,597 4,802 1.35 27,774 -1.75 0.0090
2023-05-15 2023-03-31 13F ONE GAS COM 68235P108 356,795 8,229 2.36 28,269 7.10 0.0101
2023-02-14 2022-12-31 13F ONE GAS COM 68235P108 348,566 5,413 1.58 26,393 9.27 0.0101
2022-11-14 2022-09-30 13F ONE GAS COM 68235P108 343,153 -48,749 -12.44 24,154 -24.09 0.0094
2022-08-22 2022-06-30 13F ONE GAS COM 68235P108 391,902 -38,646 -8.98 31,819 -16.25 0.0113
2022-05-16 2022-03-31 13F ONE GAS COM 68235P108 430,548 -21,724 -4.80 37,991 8.26 0.0116
2022-02-14 2021-12-31 13F ONE GAS COM 68235P108 452,272 14,337 3.27 35,091 26.44 0.0106
2021-11-15 2021-09-30 13F ONE GAS COM 68235P108 437,935 24,541 5.94 27,752 -9.43 0.0090
2021-08-12 2021-06-30 13F ONE GAS COM 68235P108 413,394 -17,927 -4.16 30,641 -7.63 0.0102
2021-05-17 2021-03-31 13F ONE GAS COM 68235P108 431,321 7,791 1.84 33,173 2.02 0.0124
2021-02-12 2020-12-31 13F ONE GAS COM 68235P108 423,530 -8,610 -1.99 32,515 9.03 0.0127
2020-11-13 2020-09-30 13F ONE GAS COM 68235P108 432,140 22,935 5.60 29,822 -5.41 0.0133
2020-08-14 2020-06-30 13F ONE GAS COM 68235P108 409,205 14,165 3.59 31,529 -4.55 0.0152
2020-05-14 2020-03-31 13F ONE GAS COM 68235P108 395,040 15,183 4.00 33,033 -7.06 0.0193
2020-02-13 2019-12-31 13F ONE GAS COM 68235P108 379,857 17,510 4.83 35,543 8.63 0.0169
2019-08-14 2019-06-30 13F ONE GAS COM 68235P108 362,347 63,884 21.40 32,720 23.14 0.0176
2019-05-15 2019-03-31 13F ONE GAS COM 68235P108 298,463 14,066 4.95 26,572 17.38 0.0152
2019-02-15 2018-12-31 13F ONE GAS COM 68235P108 284,397 16,797 6.28 22,638 2.82 0.0175
2018-11-20 2018-09-30 13F ONE GAS COM 68235P108 267,600 591 0.22 22,018 10.33 0.0158
2018-08-10 2018-06-30 13F ONE GAS COM 68235P108 267,009 24,496 10.10 19,956 24.64 0.0154
2018-05-17 2018-03-31 13F ONE GAS COM 68235P108 242,513 17,021 7.55 16,011 -3.08 0.0122
2018-02-13 2017-12-31 13F ONE GAS COM 68235P108 225,492 10,867 5.06 16,520 4.49 0.0120
2017-11-09 2017-09-30 13F ONE GAS COM 68235P108 214,625 16,578 8.37 15,810 14.36 0.0119
2017-08-03 2017-06-30 13F ONE GAS COM 68235P108 198,047 12,542 6.76 13,825 10.23 0.0112
2017-05-12 2017-03-31 13F ONE GAS COM 68235P108 185,505 2,833 1.55 12,542 7.32 0.0106
2017-02-13 2016-12-31 13F ONE GAS COM 68235P108 182,672 21,080 13.05 11,687 16.93 0.0109
2016-10-12 2016-09-30 13F ONE GAS COM 68235P108 161,592 17,704 12.30 9,995 4.50 0.0101
2016-08-16 2016-06-30 13F ONE GAS COM 68235P108 143,888 -12,098 -7.76 9,565 0.29 0.0101
2016-05-16 2016-03-31 13F ONE GAS COM 68235P108 155,986 4,175 2.75 9,537 25.11 0.0106
2016-02-16 2015-12-31 13F ONE GAS COM 68235P108 151,811 1,622 1.08 7,623 12.05 0.0086
2015-11-13 2015-09-30 13F ONE GAS COM 68235P108 150,189 -1,964 -1.29 6,803 5.08 0.0083
2015-07-31 2015-06-30 13F ONE GAS COM 68235P108 152,153 29,227 23.78 6,474 21.85 0.0076
2015-05-14 2015-03-31 13F ONE GAS COM 68235P108 122,926 5,948 5.08 5,313 10.02 0.0064
2015-02-20 2014-12-31 13F/A-1 ONE GAS COM 68235P108 116,978 68,420 140.90 4,829 189.68 0.0057
2015-02-17 2014-12-31 13F ONE GAS COM 68235P108 116,978 68,420 4,829 0.0059
2014-11-14 2014-09-30 13F ONE GAS COM 68235P108 48,558 -152,655 -75.87 1,667 -78.05 0.0020
2014-08-13 2014-06-30 13F ONE GAS COM 68235P108 201,213 400 0.20 7,596 5.28 0.0089
2014-05-14 2014-03-31 13F ONE GAS COM 68235P108 200,813 200,813 7,215 0.0088
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.