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OGS · ONE Gas, Inc. · Shareholders & Ownership

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$78.36 +0.43 (+0.55%) At close · Oct 26
Market Cap
$4.90B
Shares
62.86M
Volume · Oct 26 609.1K Avg daily vol (3M) 560.1K

Every disclosed holder of OGS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns OGS

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 58,375,208 92.87%
Insiders (Forms 3, 4, 5) 677,600 1.08%
13D/G-only blocks 0 0.00%
Remaining 3,803,462 6.05%
Registered funds (N-PORT, not summed) 32,125,020 51.11%

Shares outstanding: 62,856,270, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of OGS

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
9,099,077
1.1
iShares Core S&P Mid-Cap ETF
Fund S000004307 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,145,847
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,638,254
1.3
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
603,769
1.4
iShares S&P Mid-Cap 400 Value ETF
Fund S000004309 · Registered fund · Jun 30, 2026
iShares Trust, not summed
314,422
1.5
iShares Core Dividend Growth ETF
Fund S000045648 · Registered fund · Jul 31, 2026
iShares Trust, not summed
196,188
2
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,716,434
3
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
3,543,229
3.1
Mid Cap Value Fund
Fund S000005779 · Registered fund · Jun 30, 2026
American Century Capital Portfolios, Inc., not summed
1,026,872
3.2
Equity Income Fund
Fund S000005776 · Registered fund · Jun 30, 2026
American Century Capital Portfolios, Inc., not summed
909,140
3.3
Value Fund
Fund S000005782 · Registered fund · Jun 30, 2026
American Century Capital Portfolios, Inc., not summed
170,215
3.4
Utilities Fund
Fund S000005982 · Registered fund · Jun 30, 2026
American Century Quantitative Equity Funds, Inc., not summed
61,392
4
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
3,268,798
4.1
STATE STREET CORP
13G CIK 93751 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,268,798
4.2
State Street(R) SPDR(R) S&P(R) Dividend ETF
Fund S000006981 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
610,574
4.3
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
Fund S000006986 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
317,676
4.4
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Value ETF
Fund S000006988 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
96,395
4.5
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
20,521
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,821,399
6
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,991,022
7
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,957,673
8
T. Rowe Price Investment Management, Inc.
13F CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,858,002
9
Energy Income Partners, LLC
13F CIK 1388814 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,763,956
9.1
EIP Growth and Income Fund
Fund S000013896 · Registered fund · Jul 31, 2026
EIP Investment Trust, not summed
28,125
10
ALLIANCEBERNSTEIN L.P.
13F CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,484,889
10.1
AB Discovery Value Fund
Fund S000010412 · Registered fund · Jun 30, 2026
AB TRUST, not summed
282,604
10.2
AB Small Cap Value Portfolio
Fund S000045542 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
86,621
10.3
AB Discovery Value Portfolio
Fund S000010436 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
85,326
10.4
Small Cap Core Portfolio
Fund S000051867 · Registered fund · Jun 30, 2026
Bernstein Fund Inc, not summed
56,064
10.5
Tax-Aware Overlay A Portfolio
Fund S000027648 · Registered fund · Jun 30, 2026
BERNSTEIN SANFORD C FUND INC, not summed
2,814
11
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,440,205
12
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,119,752
12.1
AQR Managed Futures Strategy HV Fund
Fund S000041117 · Registered fund · Jun 30, 2026
AQR Funds, not summed
29,512
12.2
AQR Managed Futures Strategy Fund
Fund S000027214 · Registered fund · Jun 30, 2026
AQR Funds, not summed
18,120
12.3
AQR Trend Total Return Fund
Fund S000074759 · Registered fund · Jun 30, 2026
AQR Funds, not summed
5,122
12.4
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
5,064
12.5
AQR MS Fusion HV Fund
Fund S000093174 · Registered fund · Jun 30, 2026
AQR Funds, not summed
1,428
13
EARNEST PARTNERS LLC
13F CIK 1102578 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,110,347
14
Boston Trust Walden Corp
13F CIK 1534866 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,045,444
15
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,030,076
15.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
248,106
15.2
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
196,078
15.3
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
104,301
15.4
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
74,126
15.5
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
66,666
16
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,022,683
16.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
198
17
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
911,800
18
NORGES BANK
13F CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
879,121
19
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
845,290
19.1
Small Cap Value Fund
Fund S000001246 · Registered fund · Jun 30, 2026
Northern Funds, not summed
45,370
19.2
Mid Cap Index Fund
Fund S000001273 · Registered fund · Jun 30, 2026
Northern Funds, not summed
40,839
19.3
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
32,244
19.4
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
14,596
19.5
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
3,792
20
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
807,222
20.1
Goldman Sachs Small Cap Value Fund
Fund S000009323 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
89,430
20.2
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
15,649
20.3
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
3,796
21
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
794,066
22
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
766,365
22.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
287,663
22.2
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
183,730
22.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
154,760
22.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
49,001
22.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
37,926
23
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
730,608
23.1
BNY Mellon US Small Cap Core Equity ETF
Fund S000067262 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
2,417
24
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
719,197
25
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
718,962
25.1
Franklin Utilities Fund
Fund S000006758 · Registered fund · Jun 30, 2026
Franklin Custodian Funds, not summed
700,000
25.2
Franklin Small Cap Enhanced ETF
Fund S000097279 · Registered fund · Jun 30, 2026
Franklin Templeton ETF Trust, not summed
1,911
26
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
693,785
26.1
Victory Market Neutral Income Fund
Fund S000037769 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
172,786
26.2
VictoryShares US Small Mid Cap Value Momentum ETF
Fund S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
162,634
26.3
Victory Integrity Small-Cap Value Fund
Fund S000046393 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
107,080
26.4
VictoryShares US Small Cap High Div Volatility Wtd ETF
Fund S000049908 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
51,370
26.5
Victory Small Cap Stock Fund
Fund S000012914 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
17,440
27
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
650,349
28
ExodusPoint Capital Management, LP
13F CIK 1736225 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
627,285
29
DUFF & PHELPS INVESTMENT MANAGEMENT CO
13F CIK 765443 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
576,000
30
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
572,032
30.1
First Trust North American Energy Infrastructure Fund
Fund S000033458 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
1,160,632
30.2
First Trust Value Line Dividend Index Fund
Fund S000013817 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
410,087
30.3
FT Energy Income Partners Enhanced Income ETF
Fund S000083823 · Registered fund · May 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
134,596
30.4
First Trust Morningstar Dividend Leaders Index Fund
Fund S000010976 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
100,497
30.5
FT Energy Income Partners Strategy ETF
Fund S000077877 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
87,607
31
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
571,048
32
Harbor Small Cap Value Fund
Fund S000000689 · Registered fund · Jul 31, 2026
HARBOR FUNDS, not summed
514,445
33
SILVERCREST ASSET MANAGEMENT GROUP LLC
13F CIK 1232395 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
496,116
34
CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC
13F CIK 1033984 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
483,805
35
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
465,930
36
VANGUARD UTILITIES INDEX FUND
Fund S000004445 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
417,625
37
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
416,335
38
ProShare Advisors LLC
13F CIK 1357955 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
405,848
38.1
ProShares S&P MidCap 400 Dividend Aristocrats ETF
Fund S000047884 · Registered fund · May 31, 2026
ProShares Trust, not summed
302,710
38.2
ProShares Russell 2000 Dividend Growers ETF
Fund S000047885 · Registered fund · May 31, 2026
ProShares Trust, not summed
71,745
38.3
ProShares DJ Brookfield Global Infrastructure ETF
Fund S000040181 · Registered fund · May 31, 2026
ProShares Trust, not summed
4,781
38.4
ProShares Russell 2000 High Income ETF
Fund S000087688 · Registered fund · May 31, 2026
ProShares Trust, not summed
2,821
38.5
ProShares UltraPro Russell2000
Fund S000024921 · Registered fund · May 31, 2026
ProShares Trust, not summed
2,231
39
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
398,960
39.1
Nuveen Quant Small Cap Equity Fund
Fund S000005386 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
140,090
39.2
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
82,886
39.3
Nuveen ESG Small-Cap ETF
Fund S000055815 · Registered fund · Jul 31, 2026
NuShares ETF Trust, not summed
60,678
39.4
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
55,179
39.5
Nuveen Small Cap Value Fund
Fund S000005570 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
30,993
40
Point72 Asset Management, L.P.
13F CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
393,090
41
Rockefeller Capital Management L.P.
13F CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
392,527
41.1
Rockefeller US Small Cap Core Fund
Fund S000080973 · Registered fund · Aug 31, 2026
Trust for Professional Managers, not summed
34,793
42
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
13F CIK 912938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
369,339
42.1
MFS New Discovery Value Fund
Fund S000032712 · Registered fund · May 31, 2026
MFS SERIES TRUST XIII, not summed
255,683
42.2
MFS New Discovery Value Portfolio
Fund S000023374 · Registered fund · Jun 30, 2026
MFS VARIABLE INSURANCE TRUST III, not summed
4,431
42.3
MFS Global Alternative Strategy Fund
Fund S000019515 · Registered fund · Jul 31, 2026
MFS Series Trust XV, not summed
585
43
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
307,802
44
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
299,800
44.1
Invesco S&P MidCap Low Volatility ETF
Fund S000030966 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
122,259
44.2
Invesco S&P MidCap Value with Momentum ETF
Fund S000003057 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
63,791
44.3
Invesco RAFI US 1000 ETF
Fund S000011995 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
16,389
44.4
Invesco S&P MidCap 400 Revenue ETF
Fund S000064595 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
13,236
44.5
Invesco S&P Midcap 400 QVM Multi-Factor ETF
Fund S000072319 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
7,597
45
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
299,768
46
GIBSON JOHN WILLIAM
Insider CIK 1239209 · Jun 3, 2026
Director, issuer-wide
292,670
47
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
291,441
47.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
697,733
47.2
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
310,863
47.3
VIP Mid Cap Portfolio
Fund S000007734 · Registered fund · Jun 30, 2026
Variable Insurance Products Fund III, not summed
224,800
47.4
Fidelity SAI Small-Mid Cap Momentum Index Fund
Fund S000050321 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
183,303
47.5
Strategic Advisers U.S. Total Stock Fund
Fund S000084926 · Registered fund · May 31, 2026
Fidelity Rutland Square Trust II, not summed
162,446
48
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
280,660
49
Bridge Builder Small/Mid Cap Value Fund
Fund S000048337 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
260,451
50
VANGUARD HIGH DIVIDEND YIELD INDEX FUND
Fund S000014011 · Registered fund · Jul 31, 2026
VANGUARD WHITEHALL FUNDS, not summed
249,990

73 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

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Key facts CIK 1587732 CUSIP 68235P108 13F (30d) 73 filings 73 filers Visit website Investor relations