ONE GAS INC (OGS) Institutional Shareholders
ONE GAS INC (OGS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $4.57B in OGS holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of OGS tracked by InsiderSet, reporting ownership valued at approximately $785.08M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $707.79M, representing an estimated loss of -9.85% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed OGS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, American Century Companies Inc, and several other long-term asset managers with concentrated positions in ONE GAS INC (OGS).
This page ranks the largest institutional OGS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
416
Total Reported Value
$4.57B
Largest Holder
Blackrock, Inc.
Largest Position
$785.08M
Insider Transactions (90d)
12
Latest Filing Quarter
Q2 2026
New Institutional Positions
67
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 9,115,076 | $785,081,496 | $707,785,651 | -$77,295,845 | -9.85% | |
| Vanguard Portfolio Management Llc | 0.02% | 3,589,993 | $309,206,097 | $278,762,956 | -$30,443,141 | -9.85% | |
| American Century Companies Inc | 0.15% | 3,375,393 | $290,722,725 | $262,099,266 | -$28,623,459 | -9.85% | |
| State Street Corp | 0.01% | 3,036,885 | $261,566,905 | $235,814,120 | -$25,752,785 | -9.85% | |
| Vanguard Capital Management Llc | 0.01% | 2,776,005 | $239,097,311 | $215,556,788 | -$23,540,523 | -9.85% | |
| Wellington Management Group Llp | 0.04% | 2,605,303 | $224,394,748 | $202,301,778 | -$22,092,970 | -9.85% | |
| Geode Capital Management, Llc | 0.01% | 1,580,865 | $136,182,488 | $122,754,167 | -$13,428,321 | -9.86% | |
| Alliancebernstein L.P. | 0.04% | 1,515,835 | $117,098,254 | $117,704,588 | +$606,334 | +0.52% | |
| Energy Income Partners, Llc | 1.84% | 1,331,076 | $114,645,576 | $103,358,051 | -$11,287,525 | -9.85% | |
| Earnest Partners Llc | 0.41% | 1,153,128 | $99,318,915 | $89,540,389 | -$9,778,526 | -9.85% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,011,383 | $87,111,014 | $78,533,890 | -$8,577,124 | -9.85% | |
| Goldman Sachs Group Inc | 0.01% | 944,791 | $81,374,843 | $73,363,021 | -$8,011,822 | -9.85% | |
| Boston Trust Walden Corp | 0.61% | 1,045,444 | $80,572,369 | $81,178,727 | +$606,358 | +0.75% | |
| Morgan Stanley | 0.00% | 883,599 | $76,104,447 | $68,611,462 | -$7,492,985 | -9.85% | |
| Qube Research & Technologies Ltd | 0.11% | 866,242 | $74,609,423 | $67,263,691 | -$7,345,732 | -9.85% | |
| Bank Of New York Mellon Corp | 0.01% | 763,877 | $65,792,694 | $59,315,049 | -$6,477,645 | -9.85% | |
| Charles Schwab Investment Management Inc | 0.01% | 755,452 | $65,067,081 | $58,660,848 | -$6,406,233 | -9.85% | |
| Northern Trust Corp | 0.01% | 728,867 | $62,777,315 | $56,596,523 | -$6,180,792 | -9.85% | |
| Franklin Resources Inc | 0.02% | 720,187 | $62,029,707 | $55,922,521 | -$6,107,186 | -9.85% | |
| Nuveen, Llc | 0.02% | 705,333 | $60,750,331 | $54,769,107 | -$5,981,224 | -9.85% | |
| Victory Capital Management Inc | 0.04% | 644,166 | $55,482,018 | $50,019,490 | -$5,462,528 | -9.85% | |
| First Trust Advisors Lp | 0.03% | 552,351 | $47,573,984 | $42,890,055 | -$4,683,929 | -9.85% | |
| Silvercrest Asset Management Group Llc | 0.33% | 529,160 | $45,576,854 | $41,089,274 | -$4,487,580 | -9.85% | |
| Duff & Phelps Investment Management Co | 0.42% | 576,000 | $44,392,320 | $44,726,400 | +$334,080 | +0.75% | |
| Bank Of America Corp | 0.00% | 503,289 | $43,348,246 | $39,080,391 | -$4,267,855 | -9.85% | |
| Aqr Capital Management Llc | 0.02% | 506,101 | $43,231,158 | $39,298,743 | -$3,932,415 | -9.10% | |
| Proshare Advisors Llc | 0.05% | 411,249 | $35,420,876 | $31,933,485 | -$3,487,391 | -9.85% | |
| Vanguard Fiduciary Trust Co | 0.01% | 391,412 | $33,712,316 | $30,393,142 | -$3,319,174 | -9.85% | |
| Rockefeller Capital Management L.P. | 0.06% | 391,067 | $33,682,685 | $30,366,353 | -$3,316,332 | -9.85% | |
| Deutsche Bank Ag\ | 0.01% | 373,703 | $32,187,040 | $29,018,038 | -$3,169,002 | -9.85% | |
| Cbre Investment Management Listed Real Assets Llc | 0.47% | 371,334 | $31,982,997 | $28,834,085 | -$3,148,912 | -9.85% | |
| Massachusetts Financial Services Co | 0.01% | 369,339 | $28,464,957 | $28,679,173 | +$214,216 | +0.75% | |
| Squarepoint Ops Llc | 0.06% | 303,744 | $26,161,471 | $23,585,722 | -$2,575,749 | -9.85% | |
| Invesco Ltd. | 0.00% | 302,487 | $26,053,205 | $23,488,116 | -$2,565,089 | -9.85% | |
| Legal & General Group Plc | 0.01% | 288,893 | $24,882,356 | $22,432,541 | -$2,449,815 | -9.85% | |
| Exoduspoint Capital Management, Lp | 0.22% | 254,712 | $21,938,345 | $19,778,387 | -$2,159,958 | -9.85% | |
| D. E. Shaw & Co., Inc. | 0.02% | 254,669 | $21,934,641 | $19,775,048 | -$2,159,593 | -9.85% | |
| Ubs Group Ag | 0.00% | 222,049 | $19,125,081 | $17,242,105 | -$1,882,976 | -9.85% | |
| Rhumbline Advisers | 0.01% | 201,803 | $17,381,265 | $15,670,003 | -$1,711,262 | -9.85% | |
| Gabelli Funds Llc | 0.11% | 190,800 | $16,433,604 | $14,815,620 | -$1,617,984 | -9.85% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 189,893 | $16,355,485 | $14,745,191 | -$1,610,294 | -9.85% | |
| Man Group Plc | 0.03% | 184,926 | $15,927,676 | $14,359,504 | -$1,568,172 | -9.85% | |
| Tidal Investments Llc | 0.04% | 157,188 | $13,538,602 | $12,205,648 | -$1,332,954 | -9.85% | |
| Retirement Systems Of Alabama | 0.04% | 174,265 | $13,430,604 | $13,531,677 | +$101,073 | +0.75% | |
| California Public Employees Retirement System | 0.01% | 152,127 | $13,102,699 | $11,812,662 | -$1,290,037 | -9.85% | |
| Wells Fargo & Company/Mn | 0.00% | 149,712 | $12,894,751 | $11,625,137 | -$1,269,614 | -9.85% | |
| Point72 Asset Management, L.P. | 0.02% | 146,802 | $12,644,056 | $11,399,175 | -$1,244,881 | -9.85% | |
| Crossmark Global Holdings, Inc. | 0.15% | 151,342 | $11,663,928 | $11,751,706 | +$87,778 | +0.75% | |
| Principal Financial Group Inc | 0.01% | 134,825 | $11,612,477 | $10,469,161 | -$1,143,316 | -9.85% | |
| Tudor Investment Corp Et Al | 0.06% | 129,599 | $11,162,362 | $10,063,362 | -$1,099,000 | -9.85% |
Frequently asked questions about OGS
Who owns the most OGS stock?
The largest holders of OGS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ONE GAS INC (OGS).
Is OGS widely held by superinvestors?
Many widely followed stocks like OGS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly OGS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.