ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionSG Americas Securities, LLC
Latest Disclosed Ownership79,398 shares
Latest Disclosed Value $ 6,839
SG Americas Securities, LLC reports 41.97% decrease in ownership of OGS / ONE Gas, Inc.

On April 16, 2026 - SG Americas Securities, LLC filed a 13F-HR form disclosing ownership of 79,398 shares of ONE Gas, Inc. (MX:OGS) valued at $6,839 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 136,811 shares of ONE Gas, Inc.. This represents a change in shares of -41.97% 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)
2026-04-16 2026-03-31 13F ONE GAS INC COM COM 68235P108 79,398 -57,413 -41.97 7 -40.00 0.0074
2026-01-09 2025-12-31 13F ONE GAS INC COM COM 68235P108 136,811 132,942 3,436.08 11 0.0135
2025-10-23 2025-09-30 13F ONE GAS INC COM COM 68235P108 3,869 -12,159 -75.86 0 -100.00 0.0011
2025-08-08 2025-06-30 13F ONE GAS INC COM COM 68235P108 16,028 5,710 55.34 1 0.0048
2025-04-15 2025-03-31 13F ONE GAS INC COM COM 68235P108 10,318 10,318 1 0.0026
2025-01-17 2024-12-31 13F ONE GAS INC COM COM 68235P108 0 -16,863 -100.00 0 -100.00
2024-10-03 2024-09-30 13F ONE GAS INC COM COM 68235P108 16,863 7,494 79.99 1 0.0045
2024-07-12 2024-06-30 13F ONE GAS INC COM COM 68235P108 9,369 2,861 43.96 1 0.0035
2024-05-06 2024-03-31 13F ONE GAS INC COM COM 68235P108 6,508 -538 -7.64 0 0.0020
2024-01-12 2023-12-31 13F ONE GAS INC COM COM 68235P108 7,046 -28,638 -80.25 0 -100.00 0.0042
2023-10-13 2023-09-30 13F ONE GAS INC COM COM 68235P108 35,684 35,684 2 0.0279
2023-07-10 2023-06-30 13F ONE GAS INC COM COM 68235P108 0 -18,173 -100.00 0 -100.00
2023-04-28 2023-03-31 13F ONE GAS INC COM COM 68235P108 18,173 2,012 12.45 1 0.00 0.0167
2023-02-02 2022-12-31 13F ONE GAS INC COM COM 68235P108 16,161 -5,169 -24.23 1 -99.93 0.0149
2022-10-31 2022-09-30 13F ONE GAS INC COM COM 68235P108 21,330 1,782 9.12 1,501 -5.42 0.0186
2022-07-29 2022-06-30 13F ONE GAS INC COM COM 68235P108 19,548 13,892 245.62 1,587 218.04 0.0169
2022-04-29 2022-03-31 13F ONE GAS INC COM COM 68235P108 5,656 -5,415 -48.91 499 -41.91 0.0037
2022-02-07 2021-12-31 13F ONE GAS INC COM COM 68235P108 11,071 -25,207 -69.48 859 -62.64 0.0047
2021-11-01 2021-09-30 13F ONE GAS INC COM COM 68235P108 36,278 8,090 28.70 2,299 10.05 0.0108
2021-08-12 2021-06-30 13F ONE GAS INC COM COM 68235P108 28,188 14,133 100.55 2,089 93.25 0.0097
2021-05-13 2021-03-31 13F ONE GAS INC COM COM 68235P108 14,055 4,706 50.34 1,081 50.56 0.0057
2021-02-04 2020-12-31 13F ONE GAS INC COM COM 68235P108 9,349 6,598 239.84 718 277.89 0.0038
2020-11-09 2020-09-30 13F ONE GAS INC COM COM 68235P108 2,751 -3,440 -55.56 190 -60.17 0.0012
2020-07-20 2020-06-30 13F ONE GAS INC COM COM 68235P108 6,191 -5,234 -45.81 477 -50.05 0.0040
2020-04-30 2020-03-31 13F ONE GAS INC COM COM 68235P108 11,425 -977 -7.88 955 -17.67 0.0090
2020-01-28 2019-12-31 13F ONE GAS INC COM COM 68235P108 12,402 5,192 72.01 1,160 67.39 0.0106
2019-11-04 2019-09-30 13F ONE GAS INC COM COM 68235P108 7,210 167 2.37 693 8.96 0.0057
2019-07-29 2019-06-30 13F ONE GAS INC COM COM 68235P108 7,043 -6,942 -49.64 636 -48.92 0.0044
2019-04-29 2019-03-31 13F ONE GAS INC COM COM 68235P108 13,985 2,260 19.28 1,245 33.44 0.0115
2019-01-31 2018-12-31 13F ONE GAS INC COM COM 68235P108 11,725 -2,933 -20.01 933 -22.64 0.0082
2018-11-06 2018-09-30 13F ONE GAS INC COM COM 68235P108 14,658 -2,512 -14.63 1,206 -6.00 0.0089
2018-08-07 2018-06-30 13F ONE GAS INC COM COM 68235P108 17,170 7,729 81.87 1,283 105.94 0.0116
2018-05-03 2018-03-31 13F ONE GAS INC COM COM 68235P108 9,441 -22,254 -70.21 623 -73.17 0.0050
2018-01-24 2017-12-31 13F ONE GAS INC COM COM 68235P108 31,695 12,080 61.59 2,322 60.80 0.0217
2017-11-07 2017-09-30 13F ONE GAS INC COM COM 68235P108 19,615 -11,188 -36.32 1,444 -32.84 0.0127
2017-08-03 2017-06-30 13F ONE GAS INC COM COM 68235P108 30,803 10,949 55.15 2,150 60.21 0.0194
2017-05-10 2017-03-31 13F ONE GAS INC COM COM 68235P108 19,854 7,803 64.75 1,342 74.06 0.0119
2017-02-08 2016-12-31 13F ONE GAS INC COM COM 68235P108 12,051 725 6.40 771 10.14 0.0065
2017-02-08 2016-09-30 13F/A-1 ONE GAS INC COM COM 68235P108 11,326 -11,221 -49.77 700 -53.36 0.0073
2016-11-08 2016-09-30 13F ONE GAS INC COM COM 68235P108 11,326 700
2016-08-03 2016-06-30 13F ONE GAS INC COM COM 68235P108 22,547 -5,219 -18.80 1,501 -11.55 0.0107
2016-05-12 2016-03-31 13F ONE GAS INC COM COM 68235P108 27,766 14,650 111.70 1,697 157.90 0.0123
2016-02-12 2015-12-31 13F ONE GAS INC COM COM 68235P108 13,116 13,116 0.00 658 0.0047
2015-11-09 2015-09-30 13F ONE GAS INC COM COM 68235P108 0 -7,449 -100.00 0 -100.00
2015-08-06 2015-06-30 13F ONE GAS INC COM COM 68235P108 7,449 4,216 130.41 317 126.43 0.0021
2015-05-13 2015-03-31 13F ONE GAS INC COM COM 68235P108 3,233 3,233 0.00 140 0.0008
2015-02-12 2014-12-31 13F ONE GAS INC COM COM 68235P108 0 -8,540 -100.00 0 -100.00
2014-11-13 2014-09-30 13F ONE GAS INC COM COM 68235P108 8,540 -13,345 -60.98 292 -64.65 0.0017
2014-08-13 2014-06-30 13F ONE GAS INC COM COM 68235P108 21,885 11,113 103.17 826 113.44 0.0048
2014-05-14 2014-03-31 13F ONE GAS INC COM COM 68235P108 10,772 10,772 387 0.0017
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.