ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionAllianz Asset Management GmbH
Latest Disclosed Ownership79,754 shares
Latest Disclosed Value $ 6,869,212
Allianz Asset Management GmbH reports 57.53% increase in ownership of OGS / ONE Gas, Inc.

On May 11, 2026 - Allianz Asset Management GmbH filed a 13F-HR form disclosing ownership of 79,754 shares of ONE Gas, Inc. (MX:OGS) valued at $6,869,212 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 50,628 shares of ONE Gas, Inc.. This represents a change in shares of 57.53% 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 79,754 29,126 57.53 6,869 75.63 0.0072
2026-02-11 2025-12-31 13F ONE GAS COM 68235P108 50,628 -52,422 -50.87 3,911 -53.11 0.0040
2025-11-04 2025-09-30 13F ONE GAS COM 68235P108 103,050 19,522 23.37 8,341 38.95 0.0093
2025-07-28 2025-06-30 13F ONE GAS COM 68235P108 83,528 -104,547 -55.59 6,002 -57.78 0.0072
2025-05-05 2025-03-31 13F ONE GAS COM 68235P108 188,075 157,375 512.62 14,217 568.99 0.0186
2025-02-03 2024-12-31 13F ONE GAS COM 68235P108 30,700 30,700 2,126 0.0028
2024-11-13 2024-09-30 13F ONE GAS COM 68235P108 0 -20,500 -100.00 0 -100.00
2024-08-13 2024-06-30 13F ONE GAS COM 68235P108 20,500 20,500 1,309 0.0019
2024-02-12 2023-12-31 13F ONE GAS COM 68235P108 0 -8,100 -100.00 0 -100.00
2023-11-13 2023-09-30 13F ONE GAS COM 68235P108 8,100 -100 -1.22 553 -12.08 0.0009
2023-08-14 2023-06-30 13F ONE GAS COM 68235P108 8,200 -23,304 -73.97 630 -74.80 0.0011
2023-05-11 2023-03-31 13F ONE GAS COM 68235P108 31,504 -20,961 -39.95 2,496 -37.16 0.0044
2023-02-13 2022-12-31 13F ONE GAS COM 68235P108 52,465 6,471 14.07 3,973 22.71 0.0077
2022-11-08 2022-09-30 13F ONE GAS COM 68235P108 45,994 -60,429 -56.78 3,237 -62.53 0.0066
2022-08-12 2022-06-30 13F ONE GAS COM 68235P108 106,423 83,124 356.77 8,640 320.23 0.0082
2022-05-13 2022-03-31 13F ONE GAS COM 68235P108 23,299 -22,208 -48.80 2,056 -41.77 0.0015
2022-02-11 2021-12-31 13F ONE GAS COM 68235P108 45,507 18,973 71.50 3,531 110.05 0.0025
2021-11-10 2021-09-30 13F ONE GAS COM 68235P108 26,534 247 0.94 1,681 -13.71 0.0013
2021-08-16 2021-06-30 13F ONE GAS COM 68235P108 26,287 2,741 11.64 1,948 7.56 0.0017
2021-05-13 2021-03-31 13F ONE GAS COM 68235P108 23,546 -347,494 -93.65 1,811 -93.64 0.0018
2021-02-16 2020-12-31 13F ONE GAS COM 68235P108 371,040 -31,525 -7.83 28,485 2.53 0.0281
2020-11-13 2020-09-30 13F ONE GAS COM 68235P108 402,565 177,271 78.68 27,781 60.04 0.0323
2020-08-14 2020-06-30 13F ONE GAS COM 68235P108 225,294 -17,362 -7.15 17,359 -14.45 0.0201
2020-05-14 2020-03-31 13F ONE GAS COM 68235P108 242,656 -87,111 -26.42 20,291 -34.24 0.0272
2020-02-13 2019-12-31 13F ONE GAS COM 68235P108 329,767 230,199 231.20 30,857 222.43 0.0282
2019-11-13 2019-09-30 13F ONE GAS COM 68235P108 99,568 16,121 19.32 9,570 27.01 0.0094
2019-08-08 2019-06-30 13F ONE GAS COM 68235P108 83,447 -1,093 -1.29 7,535 0.11 0.0070
2019-05-13 2019-03-31 13F ONE GAS COM 68235P108 84,540 19,942 30.87 7,527 46.38 0.0075
2019-04-02 2018-12-31 13F/A-1 ONE GAS COM 68235P108 64,598 1,421 2.25 5,142 -1.08 0.0056
2019-02-13 2018-12-31 13F ONE GAS COM 68235P108 64,598 1,421 5,142
2019-04-09 2018-09-30 13F/A-1 ONE GAS COM 68235P108 63,177 63,177 5,198 0.0047
2018-11-13 2018-09-30 13F ONE GAS COM 68235P108 63,177 63,177 5,198
2019-04-09 2018-06-30 13F/A-1 ONE GAS COM 68235P108 0 -29,482 -100.00 0 -100.00
2019-04-09 2018-03-31 13F/A-2 ONE GAS COM 68235P108 29,482 -9,996 -25.32 1,946 -32.71 0.0019
2018-05-23 2018-03-31 13F/A-1 ONE GAS COM 68235P108 29,482 0 1,946 0.0019
2018-05-14 2018-03-31 13F ONE GAS COM 68235P108 29,482 -9,996 1,946
2019-04-17 2017-12-31 13F/A-1 ONE GAS COM 68235P108 39,478 29,482 294.94 2,892 292.93 0.0023
2018-02-13 2017-12-31 13F ONE GAS COM 68235P108 39,478 29,482 2,892
2019-04-17 2017-09-30 13F/A-1 ONE GAS COM 68235P108 9,996 -19,813 -66.47 736 -64.62 0.0006
2017-11-13 2017-09-30 13F ONE GAS COM 68235P108 9,996 -19,813 736
2019-04-17 2017-06-30 13F/A-1 ONE GAS COM 68235P108 29,809 -1,176 -3.80 2,080 -0.67 0.0020
2017-08-14 2017-06-30 13F ONE GAS COM 68235P108 29,809 -1,176 2,080
2019-04-17 2017-03-31 13F/A-1 ONE GAS COM 68235P108 30,985 -14,654 -32.11 2,094 -28.26 0.0021
2017-05-15 2017-03-31 13F ONE GAS COM 68235P108 30,985 -14,654 2,094
2019-04-17 2016-12-31 13F/A-2 ONE GAS COM 68235P108 45,639 12,326 37.00 2,919 41.56 0.0026
2017-03-14 2016-12-31 13F/A-1 ONE GAS COM 68235P108 45,639 0 2,919 0.0026
2017-02-13 2016-12-31 13F ONE GAS COM 68235P108 45,639 2,919
2019-04-17 2016-09-30 13F/A-1 ONE GAS COM 68235P108 33,313 26,754 407.90 2,062 371.85 0.0020
2016-11-14 2016-09-30 13F ONE GAS COM 68235P108 33,313 26,754 2,062
2017-01-24 2016-06-30 13F/A-1 ONE GAS COM 68235P108 6,559 6,559 0.00 437 0.0005
2016-08-12 2016-06-30 13F ONE GAS COM 68235P108 6,559 437
2024-05-23 2016-03-31 13F/A-1 ONE GAS COM 68235P108 0 -75,317 -100.00 0 -100.00
2016-05-13 2016-03-31 13F ONE GAS COM 68235P108 0 -75,317 0
2017-01-24 2015-12-31 13F/A-1 ONE GAS COM 68235P108 75,317 21,617 40.26 3,809 56.43 0.0043
2016-02-16 2015-12-31 13F ONE GAS COM 68235P108 75,317 3,809
2017-01-24 2015-09-30 13F/A-2 ONE GAS COM 68235P108 53,700 -934,733 -94.57 2,435 -94.21 0.0029
2015-11-20 2015-09-30 13F/A-1 ONE GAS COM 68235P108 53,700 0 2,435 0.0025
2015-11-13 2015-09-30 13F ONE GAS COM 68235P108 53,700 2,435
2015-09-22 2015-06-30 13F/A-1 ONE GAS COM 68235P108 988,433 -30,329 -2.98 42,068 -4.48 0.0450
2015-08-14 2015-06-30 13F ONE GAS COM 68235P108 988,433 42,068
2017-01-24 2015-03-31 13F/A-1 ONE GAS COM 68235P108 1,018,762 -501,483 -32.99 44,041 -29.72 0.0503
2015-05-15 2015-03-31 13F ONE GAS COM 68235P108 1,018,762 44,041,081
2015-02-17 2014-12-31 13F ONE GAS COM 68235P108 1,520,245 -1,318,510 -46.45 62,664 -35.55 0.0697
2014-11-14 2014-09-30 13F ONE GAS COM 68235P108 2,838,755 223,511 8.55 97,227 -1.52 0.1172
2014-08-13 2014-06-30 13F ONE GAS COM 68235P108 2,615,244 -243,901 -8.53 98,726 -3.90 0.1239
2014-05-28 2014-03-31 13F/A-1 ONE GAS COM 68235P108 2,859,145 2,859,145 102,729 0.1235
2014-05-14 2014-03-31 13F ONE GAS COM 68235P108 2,859,145 102,729 0.1235
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.