ONE Gas, Inc. (OGS)

Highly Crowded

Held by 402 of 5,944 reporting institutions (96th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

85.31%

QoQ Change

-2.37%

Total Value

$4.4T

Shares Outstanding

62.8M

Crowding AnalysisHighly Crowded

Holders402of 5,944

Avg: 68

Uncrowded96th percentileCrowded

Institutional Activity

Buy/Sell Ratio1.23x

89th percentile

211 buying171 selling

+64

New

-43

Closed

-1,300,541

Net shares

Holding Period Distribution

estimate

Median: 4 QAvg: 4 QHolders: 402

Ownership Concentration

Top 5: 40.9%Top 10: 57.5%

BlackRock,17.0%

VANGUARD PORTFOLIO MANAGEMENT6.7%

AMERICAN CENTURY COMPANIES6.3%

STATE STREET5.7%

VANGUARD CAPITAL MANAGEMENT5.2%

Others (397)59.1%

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Conviction-Weighted Ownership

Median weight: 0.03%Avg weight: 0.22%Max: 1.84%High conviction (>1%): 1

BlackRock,

VANGUARD PORTFOLIO MANAGEMENT

AMERICAN CENTURY COMPANIES

STATE STREET

VANGUARD CAPITAL MANAGEMENT

WELLINGTON MANAGEMENT GROUP LLP

T. Rowe Price Investment Management,

GEODE CAPITAL MANAGEMENT,

ALLIANCEBERNSTEIN L.P.

Energy Income Partners,

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Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWVANGUARD PORTFOLIO MANAGEMENT$309M3.6M shr

NEWVANGUARD CAPITAL MANAGEMENT$239M2.8M shr

SOLDWELLINGTON MANAGEMENT GROUP LLP$51M595K shr

BOUGHTBlackRock$30M345K shr

SOLDALLIANCEBERNSTEIN L.P.$14M185K shr

NEWGOLDMAN SACHS GROUP$108M1.4M shr

NEWEnergy Income Partners$102M1.3M shr

SOLDWELLINGTON MANAGEMENT GROUP LLP$77M991K shr

BOUGHTBlackRock$31M399K shr

SOLDAMERICAN CENTURY COMPANIES$24M314K shr

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Institutional Trends (8 Quarters)

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Institutional Holders

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