ONE Gas, Inc.
DE ˙ DB ˙ US68235P1084
65,50 € ↓ -1,50 (-2,24%)
2026-06-04
DEL PRIS
SecurityDE:OG9 / ONE Gas, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership0 shares
Ownership 0.00%
Vanguard Group Inc ownership in OG9 / ONE Gas, Inc.

2026-03-27 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of ONE Gas, Inc. (DE:OG9). This represents 0.0 percent ownership of the company. In their previous filing dated 2025-07-29 , Vanguard Group Inc had reported owning 6,573,724 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-03-27 2026-03-27 13G/A 6,573,724 0 -100.00 0.00 -100.00
2025-07-29 2025-07-29 13G/A 6,412,557 6,573,724 2.51 10.52 -9.00
2024-02-13 2024-02-13 13G/A 6,246,071 6,412,557 2.67 11.56 0.17
2023-02-09 2023-02-09 13G/A 5,824,796 6,246,071 7.23 11.54 6.16
2022-02-10 2022-02-10 13G/A 5,349,711 5,824,796 8.88 10.87 8.16
2021-06-10 2021-06-10 13G/A 5,148,084 5,349,711 3.92 10.05 3.61
2021-02-10 2021-02-10 13G/A 5,329,001 5,148,084 -3.39 9.70 -3.96
2020-02-12 2020-02-12 13G/A 5,296,428 5,329,001 0.61 10.10 0.30
2019-03-11 2019-03-11 13G/A 5,214,348 5,296,428 1.57 10.07 1.51
2019-02-11 2019-02-11 13G/A 4,878,283 5,214,348 6.89 9.92 6.32
2018-02-09 2018-02-09 13G/A 4,969,260 4,878,283 -1.83 9.33 -1.89
2017-02-10 2017-02-10 13G/A 3,873,350 4,969,260 28.29 9.51 28.17
2016-02-11 2016-02-11 13G/A 3,873,350 7.42
2015-02-11 2015-02-11 13G 3,238,542 6.22

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F ONE GAS COM 68235P108 6,489,014 -53,601 -0.82 501,276 -5.34 0.0073
2025-11-07 2025-09-30 13F ONE GAS COM 68235P108 6,542,615 -31,109 -0.47 529,559 12.10 0.0079
2025-08-11 2025-06-30 13F ONE GAS COM 68235P108 6,573,724 155,734 2.43 472,388 -2.63 0.0076
2025-05-09 2025-03-31 13F ONE GAS COM 68235P108 6,417,990 147,186 2.35 485,136 11.72 0.0088
2025-02-11 2024-12-31 13F ONE GAS COM 68235P108 6,270,804 41,933 0.67 434,253 -6.32 0.0076
2024-11-13 2024-09-30 13F ONE GAS COM 68235P108 6,228,871 47,206 0.76 463,553 17.44 0.0083
2024-08-13 2024-06-30 13F ONE GAS COM 68235P108 6,181,665 58,230 0.95 394,699 -0.11 0.0076
2024-05-10 2024-03-31 13F ONE GAS COM 68235P108 6,123,435 -289,122 -4.51 395,145 -3.29 0.0078
2024-03-11 2023-12-31 13F/A-1 ONE GAS COM 68235P108 6,412,557 10,390 0.16 408,608 -6.53 0.0089
2024-02-14 2023-12-31 13F ONE GAS COM 68235P108 6,412,557 10,390 408,608 0.0078
2023-12-18 2023-09-30 13F/A-1 ONE GAS COM 68235P108 6,402,167 27,831 0.44 437,140 -10.72 0.0107
2023-11-14 2023-09-30 13F ONE GAS COM 68235P108 6,402,167 27,831 437,140 0.0019
2023-08-14 2023-06-30 13F ONE GAS COM 68235P108 6,374,336 10,555 0.17 489,613 -2.89 0.0116
2023-07-14 2023-03-31 13F/A-1 ONE GAS COM 68235P108 6,363,781 117,710 1.88 504,202 6.61 0.0128
2023-05-15 2023-03-31 13F ONE GAS COM 68235P108 6,363,781 117,710 504,202 0.0128
2023-02-10 2022-12-31 13F ONE GAS COM 68235P108 6,246,071 124,139 2.03 472,952 9.75 0.0129
2022-11-14 2022-09-30 13F ONE GAS COM 68235P108 6,121,932 83,328 1.38 430,923 -12.11 0.0127
2022-08-12 2022-06-30 13F ONE GAS COM 68235P108 6,038,604 145,270 2.46 490,274 -5.72 0.0138
2022-05-13 2022-03-31 13F ONE GAS COM 68235P108 5,893,334 68,538 1.18 520,027 15.06 0.0123
2022-02-14 2021-12-31 13F ONE GAS COM 68235P108 5,824,796 97,032 1.69 451,945 24.51 0.0103
2021-11-12 2021-09-30 13F ONE GAS COM 68235P108 5,727,764 346,519 6.44 362,968 -9.00 0.0090
2021-08-13 2021-06-30 13F ONE GAS COM 68235P108 5,381,245 86,693 1.64 398,857 -2.05 0.0099
2021-05-14 2021-03-31 13F ONE GAS COM 68235P108 5,294,552 146,468 2.85 407,204 3.03 0.0110
2021-02-12 2020-12-31 13F ONE GAS COM 68235P108 5,148,084 88,537 1.75 395,218 13.19 0.0115
2020-11-16 2020-09-30 13F ONE GAS COM 68235P108 5,059,547 -300,367 -5.60 349,160 -15.45 0.0116
2020-08-14 2020-06-30 13F ONE GAS COM 68235P108 5,359,914 -96,952 -1.78 412,982 -9.49 0.0146
2020-05-15 2020-03-31 13F ONE GAS COM 68235P108 5,456,866 127,865 2.40 456,302 -8.49 0.0194
2020-02-14 2019-12-31 13F ONE GAS COM 68235P108 5,329,001 746 0.01 498,635 -2.63 0.0170
2019-11-14 2019-09-30 13F ONE GAS COM 68235P108 5,328,255 7,252 0.14 512,099 6.58 0.0190
2019-08-14 2019-06-30 13F ONE GAS COM 68235P108 5,321,003 -20,480 -0.38 480,487 1.04 0.0181
2019-05-15 2019-03-31 13F ONE GAS COM 68235P108 5,341,483 127,135 2.44 475,552 14.57 0.0187
2019-02-14 2018-12-31 13F ONE GAS COM 68235P108 5,214,348 163,493 3.24 415,062 -0.13 0.0186
2018-12-13 2018-09-30 13F/A-2 ONE GAS COM 68235P108 5,050,855 36,615 0.73 415,584 10.89 0.0162
2018-11-23 2018-09-30 13F/A-1 ONE GAS COM 68235P108 5,050,855 0 415,584 0.0162
2018-11-14 2018-09-30 13F ONE GAS COM 68235P108 5,050,855 36,615 415,584
2018-08-14 2018-06-30 13F ONE GAS COM 68235P108 5,014,240 128,609 2.63 374,764 16.19 0.0157
2018-05-15 2018-03-31 13F ONE GAS COM 68235P108 4,885,631 7,348 0.15 322,550 -9.75 0.0141
2018-02-14 2017-12-31 13F ONE GAS COM 68235P108 4,878,283 109,365 2.29 357,383 1.77 0.0156
2017-11-14 2017-09-30 13F ONE GAS COM 68235P108 4,768,918 -41,793 -0.87 351,184 4.57 0.0164
2017-08-24 2017-06-30 13F/A-1 ONE GAS COM 68235P108 4,810,711 -262,211 -5.17 335,836 -2.07 0.0165
2017-08-11 2017-06-30 13F ONE GAS COM 68235P108 4,810,711 -262,211 335,836
2017-05-12 2017-03-31 13F ONE GAS COM 68235P108 5,072,922 103,662 2.09 342,929 7.90 0.0176
2017-02-14 2016-12-31 13F ONE GAS COM 68235P108 4,969,260 221,105 4.66 317,834 8.24 0.0177
2016-11-14 2016-09-30 13F ONE GAS COM 68235P108 4,748,155 101,868 2.19 293,625 -5.10 0.0172
2016-08-10 2016-06-30 13F ONE GAS COM 68235P108 4,646,287 246,193 5.60 309,396 15.08 0.0192
2016-05-13 2016-03-31 13F ONE GAS COM 68235P108 4,400,094 526,744 13.60 268,845 38.35 0.0174
2016-02-08 2015-12-31 13F ONE GAS COM 68235P108 3,873,350 130,906 3.50 194,327 14.55 0.0131
2015-11-12 2015-09-30 13F/A-1 ONE GAS COM 68235P108 3,742,444 100,086 2.75 169,646 9.44 0.0072
2015-11-12 2015-09-30 13F/A-1 ONE GAS COM 68235P108 3,742,444 100,086 169,646 0.0072
2015-08-13 2015-06-30 13F ONE GAS COM 68235P108 3,642,358 184,926 5.35 155,019 3.72 0.0105
2015-05-15 2015-03-31 13F/A-1 ONE GAS COM 68235P108 3,457,432 218,890 6.76 149,465 11.96 0.0101
2015-05-14 2015-03-31 13F ONE GAS COM 68235P108 3,457,432 149,465
2015-02-12 2014-12-31 13F ONE GAS COM 68235P108 3,238,542 68,196 2.15 133,493 22.94 0.0096
2014-11-12 2014-09-30 13F ONE GAS COM 68235P108 3,170,346 14,930 0.47 108,585 -8.84 0.0085
2014-08-11 2014-06-30 13F ONE GAS COM 68235P108 3,155,416 107,864 3.54 119,116 8.78 0.0094
2014-05-13 2014-03-31 13F ONE GAS COM 68235P108 3,047,552 3,047,552 109,498 0.0092
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.