Hologic, Inc. (HOLX)

Highly Crowded

Held by 673 of 5,944 reporting institutions (98th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

94.68%

QoQ Change

+0.73%

Total Value

$15.2T

Shares Outstanding

223.2M

Crowding AnalysisHighly Crowded

Holders673of 5,944

Avg: 68

Uncrowded98th percentileCrowded

Institutional Activity

Buy/Sell Ratio0.96x

94th percentile

345 buying358 selling

+86

New

-133

Closed

+1.6M

Net shares

Holding Period Distribution

estimate

Median: 4 QAvg: 3.6 QHolders: 673

Ownership Concentration

Top 5: 31.4%Top 10: 45.3%

BlackRock,10.7%

VANGUARD CAPITAL MANAGEMENT6.9%

STATE STREET4.7%

HBK INVESTMENTS L P4.6%

VANGUARD PORTFOLIO MANAGEMENT4.5%

Others (668)68.6%

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Conviction-Weighted Ownership

Median weight: 0.05%Avg weight: 0.88%Max: 7.53%High conviction (>1%): 1

BlackRock,

VANGUARD CAPITAL MANAGEMENT

STATE STREET

HBK INVESTMENTS L P

VANGUARD PORTFOLIO MANAGEMENT

FIL

GEODE CAPITAL MANAGEMENT,

MILLENNIUM MANAGEMENT

UBS Group AG

BALYASNY ASSET MANAGEMENT L.P.

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Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWVANGUARD CAPITAL MANAGEMENT$1.1B14.5M shr

NEWVANGUARD PORTFOLIO MANAGEMENT$727M9.6M shr

NEWMILLENNIUM MANAGEMENT$428M5.7M shr

NEWUBS Group AG$385M5.1M shr

NEWBALYASNY ASSET MANAGEMENT L.P.$357M4.7M shr

NEWHBK INVESTMENTS L P$626M8.4M shr

NEWFIL$389M5.2M shr

NEWPentwater Capital Management$316M4.2M shr

BOUGHTBlackRock$200M2.7M shr

SOLDMANUFACTURERS LIFE INSURANCE COMPANY, THE$75M1.0M shr

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Institutional Trends (8 Quarters)

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Institutional Holders

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