Seagate Technology Holdings plc (STX)

Highly Crowded

Held by 1,388 of 5,944 reporting institutions (99th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

88.05%

QoQ Change

-5.83%

Total Value

$76.1T

Shares Outstanding

224.2M

Crowding AnalysisHighly Crowded

Holders1,388of 5,944

Avg: 68

Uncrowded99th percentileCrowded

Institutional Activity

Buy/Sell Ratio1.26x

99th percentile

795 buying631 selling

+305

New

-125

Closed

-8,086,978

Net shares

Holding Period Distribution

estimate

Median: 3 QAvg: 3.2 QHolders: 1,388

Ownership Concentration

Top 5: 31.3%Top 10: 46.7%

BlackRock,7.2%

VANGUARD CAPITAL MANAGEMENT7.2%

Sanders Capital,6.5%

VANGUARD PORTFOLIO MANAGEMENT5.6%

STATE STREET4.7%

Others (1383)68.7%

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Conviction-Weighted Ownership

Median weight: 0.16%Avg weight: 0.76%Max: 6.02%High conviction (>1%): 1

BlackRock,

VANGUARD CAPITAL MANAGEMENT

Sanders Capital,

VANGUARD PORTFOLIO MANAGEMENT

STATE STREET

FMR

JPMORGAN CHASE &

Capital Research Global Investors

GEODE CAPITAL MANAGEMENT,

JANE STREET GROUP,

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Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWVANGUARD CAPITAL MANAGEMENT$5.5B14.2M shr

NEWVANGUARD PORTFOLIO MANAGEMENT$4.3B11.1M shr

NEWFMR$3.2B8.2M shr

NEWJANE STREET GROUP$1.9B4.8M shr

SOLDSanders Capital$1.7B4.3M shr

SOLDJPMORGAN CHASE$1.9B6.9M shr

NEWDZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$1.5B5.4M shr

NEWGEODE CAPITAL MANAGEMENT$1.3B4.9M shr

BOUGHTBlackRock$474M1.7M shr

SOLDCapital Research Global Investors$462M1.7M shr

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Institutional Trends (8 Quarters)

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Institutional Holders

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