ONE GAS

OGS • NYSE

ONE GAS is a regulated gas company in the utilities sector on NYSE, led by Christopher P. Sighinolfi, with a market cap of $4.6B. As of Q3 2025, 93% of shares are held by 385 institutional investors, with BlackRock, Inc. as the largest holder at 13.95%.

Chief Executive OfficerChristopher P. Sighinolfi

Market Cap$4.6B

Regulated Gas

Utilities

Employees3.9K

Websiteonegas.com

Country

United States of America

Overview

Overview of institutional ownership in OGS as of Q3 2025 with a market cap of $4.9B

All Institutions

Institutions: 385
Value Held: $4.5B
Shares Held: 55.6M
Avg Position: $11.7M
Median Position: $613.6K

Hedge Funds

Hedge Funds: 33
Value Held: $158.9M
Shares Held: 2.0M
Avg Position: $4.8M
Median Position: $911.4K

Ownership Breakdown

Institutional (non-HF)

89.35%

$4.3B

Hedge Funds

3.27%

$158.9M

Retail & Other

7.38%

$358.5M

Based on market cap of $4.9B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in OGS as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$677.5M 0.01% of portfolio	13.95% 8.4M shares	Q1 2014 Held for 11y 8m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$529.6M 0.01% of portfolio	10.90% 6.5M shares	Q1 2014 Held for 11y 8m	$6.69T
WELLINGTON MANAGEMENT CO LLP Long Only Manager	Jean Marie Hynes CEO	$339.2M 0.06% of portfolio	6.99% 4.2M shares	Q1 2022 Held for 3y 8m	$571.21B
A AMERICAN CENTURY COMPANIES INC Institution	-	$308.9M 0.16% of portfolio	6.36% 3.8M shares	Q1 2014 Held for 11y 8m	$195.93B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$245.9M 0.01% of portfolio	5.06% 3.0M shares	Q1 2014 Held for 11y 8m	$2.88T
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$165.9M 0.10% of portfolio	3.42% 2.0M shares	Q3 2022 Held for 3y 2m	$161.58B
ALLIANCEBERNSTEIN L.P. Long Only Manager	Seth Perry Bernstein CEO	$138.2M 0.04% of portfolio	2.85% 1.7M shares	Q1 2014 Held for 11y 8m	$317.45B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$120.6M 0.01% of portfolio	2.48% 1.5M shares	Q1 2014 Held for 11y 8m	$1.57T
EARNEST PARTNERS LLC Long Only Manager	Paul Ernest Viera CEO	$101.8M 0.44% of portfolio	2.10% 1.3M shares	Q2 2024 Held for 1y 5m	$23.1B
B BTIM Corp. Institution	-	$84.8M 0.62% of portfolio	1.75% 1.0M shares	Q3 2014 Held for 11y 2m	$13.6B

Net Capital Flow

Institutional buying and selling activity for OGS in Q3 2025

Traded: −$47.1M
Buyers: 182
Sellers: 159
Total Bought: +$217.9M
Total Sold: −$265.0M
Avg Position: $10.8M

Biggest Buyers

Institution	Net Bought	Current Position
GOLDMAN SACHS GROUP INC Institution	+$26.8M +331.3K shares	$82.4M 1.0M shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	+$16.9M +208.5K shares	$18.2M 225.3K shares
A AMERICAN CENTURY COMPANIES INC Institution	+$16.4M +202.2K shares	$308.9M 3.8M shares
D D. E. Shaw & Co., Inc. Institution	+$15.4M +190.3K shares	$15.9M 196.3K shares
Energy Income Partners, LLC Long Only Manager	+$12.4M +153.8K shares	$68.5M 846.2K shares
BANK OF AMERICA CORP /DE/ Institution	+$11.8M +146.2K shares	$39.7M 490.4K shares
M Man Group plc Institution	+$10.7M +131.6K shares	$10.7M 131.6K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	+$10.3M +127.1K shares	$13.1M 161.7K shares
ALLIANCEBERNSTEIN L.P. Long Only Manager	+$8.9M +110.3K shares	$138.2M 1.7M shares
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager	+$6.9M +85.4K shares	$6.9M 85.4K shares

Biggest Sellers

Institution	Net Sold	Current Position
Marshall Wace LLP Institution	−$18.6M −230.2K shares	$2.1M 26.2K shares
MORGAN STANLEY RIA/Wealth	−$18.3M −226.5K shares	$62.6M 773.9K shares
V VIRGINIA RETIREMENT SYSTEMS ET AL Institution	−$18.3M −226.5K shares	$3.1M 38.4K shares
B BlackRock, Inc. Institution	−$13.2M −162.6K shares	$677.5M 8.4M shares
C Cubist Systematic Strategies, LLC Institution	−$13.0M −160.6K shares	$5.4M 67.0K shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	−$11.6M −143.1K shares	$339.2M 4.2M shares
Q Qube Research & Technologies Ltd Institution	−$10.6M −131.6K shares	$3.1M 37.8K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$9.3M −115.5K shares	$13.2M 163.6K shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$7.9M −97.7K shares	$15.9M 196.4K shares
Burkehill Global Management, LP Hedge Fund•Event Driven	−$7.2M −100.0K shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited OGS in Q3 2025

New Positions: 15
New Value: $7.9M
Exited Positions: 31
Exited Value: $27.3M

New Positions

Institution	Position Value
Aristotle Capital Boston, LLC Long Only Manager	$6.0M 73.6K shares
Bridgewater Associates, LP Hedge Fund•Global Macro	$590.5K 7.3K shares
AIGEN INVESTMENT MANAGEMENT, LP Hedge Fund•Long/Short	$555.2K 6.9K shares
IEQ CAPITAL, LLC RIA/Wealth	$323.8K 4.0K shares
Empirical Financial Services, LLC RIA/Wealth	$237.0K 2.9K shares
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	$210.7K 2.6K shares
CHILTON CAPITAL MANAGEMENT LLC RIA/Wealth	$8.3K 103.0 shares
Triumph Capital Management RIA/Wealth	$8.1K 100.0 shares
R Root Financial Partners, LLC RIA/Wealth	$6.2K 77.0 shares
Quent Capital, LLC Hedge Fund•Long/Short	$2.5K 31.0 shares

Exited Positions

Institution	Previous Position
Burkehill Global Management, LP Hedge Fund•Event Driven	$7.2M 100.0K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$4.7M 65.8K shares
LEUTHOLD WEEDEN CAPITAL MANAGEMENT Long Only Manager	$3.1M 42.5K shares
Jain Global LLC Hedge Fund•Multi-Strategy	$3.0M 41.8K shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy	$1.8M 24.7K shares
OCCUDO QUANTITATIVE STRATEGIES LP Hedge Fund•Market Neutral	$1.3M 17.6K shares
Aster Capital Management Ltd RIA/Wealth	$1.0M 14.3K shares
K KEMPEN CAPITAL MANAGEMENT N.V. Institution	$924.1K 12.9K shares
B Bridgefront Capital, LLC Hedge Fund•Quant	$792.5K 11.0K shares
D Dynamic Technology Lab Private Ltd Institution	$584.9K 8.1K shares

Options Activity

Institutions with the largest Call and Put options positions in OGS as of Q3 2025

Call Positions: 3
Call Value: $1.3M
Put Positions: 3
Put Value: $1.0M

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$947.0K 117.0 contracts
W WOLVERINE TRADING, LLC Institution	$307.0K 38.0 contracts
Walleye Trading LLC RIA/Wealth	- - contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$582.8K 72.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$461.4K 57.0 contracts
Walleye Trading LLC RIA/Wealth	- - contracts

Most Committed Institutions

Institutions with OGS as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
A Ausbil Investment Management Ltd Long Only Manager	Mark Gregory Knight CEO	2.14% $4.0M	0.08% 50.3K shares	Q2 2025 Held for 5 months	$187.5M
S Sprinkle Financial Consultants LLC RIA/Wealth	Sean Gary Sprinkle Managing Partner	1.64% $2.9M	0.06% 36.2K shares	Q4 2023 Held for 1y 11m	$178.0M
Energy Income Partners, LLC Long Only Manager	James Jarvis Murchie CEO	1.32% $68.5M	1.41% 846.2K shares	Q4 2019 Held for 5y 11m	$5.2B
G Greenland Capital Management LP Hedge Fund•Multi-Strategy	Michael J Englander CEO	0.95% $6.1M	0.13% 75.1K shares	Q1 2023 Held for 2y 8m	$641.9M
B BTIM Corp. Institution	-	0.62% $84.8M	1.75% 1.0M shares	Q3 2014 Held for 11y 2m	$13.6B
Jackson Creek Investment Advisors LLC Long Only Manager	Mark Frederick Jaeger Managing Partner	0.56% $1.9M	0.04% 23.8K shares	Q3 2025 Held for 2 months	$345.2M
DUFF & PHELPS INVESTMENT MANAGEMENT CO Real Assets	George Robert Aylward Chairman	0.53% $46.6M	0.96% 576.0K shares	Q4 2015 Held for 9y 11m	$8.8B
EARNEST PARTNERS LLC Long Only Manager	Paul Ernest Viera CEO	0.44% $101.8M	2.10% 1.3M shares	Q2 2024 Held for 1y 5m	$23.1B
Longboard Asset Management, LP Long Only Manager	Cole Mcallister Wilcox CEO	0.42% $260.8K	0.01% 3.2K shares	Q2 2025 Held for 5 months	$62.3M
M Meiji Yasuda Asset Management Co Ltd. Institution	-	0.40% $8.5M	0.17% 104.9K shares	Q1 2024 Held for 1y 8m	$2.1B

Hedge Fund Spotlight

Discover hedge funds investing in OGS

Magnetar Financial LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerDavid Jay Snyderman

Portfolio Value: $15.4B
Positions: 724
Last Reported: Q3 2025

Sector Allocation

Position in ONE GAS

Market Value: $460.3K
Shares Held: 5.7K
Portfolio Weight: 0.00%
Owned Since: 2025-Q1

Top Holding	Sector	Market Value	Weight
1 CoreWeave, Inc. CRWV	Software - Infrastructure Technology	$11.2B	72.75%
2 Norfolk Southern NSC	Railroads Industrials	$107.6M	0.70%
3 CyberArk Software CYBR	Software - Infrastructure Technology	$102.1M	0.66%