Verastem, Inc. (VSTM)

Accumulating

Strong institutional accumulation: ownership increased +5.67% quarter-over-quarter.

Data as of Q1 2026

Institutional Ownership

93.22%

QoQ Change

+5.67%

Total Value

$431.0B

Shares Outstanding

87.8M

Crowding AnalysisCrowded

Holders153of 5,944

Avg: 68

Uncrowded90th percentileCrowded

Institutional Activity

Buy/Sell Ratio2.17x

79th percentile

113 buying52 selling

+40

New

-26

Closed

+5.0M

Net shares

Holding Period Distribution

estimate

Median: 2 QAvg: 2.5 QHolders: 153

Ownership Concentration

Top 5: 32.6%Top 10: 51.8%

RTW INVESTMENTS,8.0%

BlackRock,7.6%

Deep Track Capital,7.0%

ARMISTICE CAPITAL,5.6%

Nantahala Capital Management,4.4%

Others (148)67.4%

Loading crowding analysis...

Conviction-Weighted Ownership

Median weight: 0.39%Avg weight: 1.45%Max: 8.85%High conviction (>1%): 2

Nantahala Capital Management,

STATE STREET

VANGUARD CAPITAL MANAGEMENT

Stonepine Capital Management,

Foresite Capital Management VI

MILLENNIUM MANAGEMENT

Loading conviction analysis...

Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWNantahala Capital Management$19M3.6M shr

NEWVANGUARD CAPITAL MANAGEMENT$18M3.3M shr

NEWMILLENNIUM MANAGEMENT$13M2.4M shr

BOUGHTBlackRock$8M1.4M shr

BOUGHTARMISTICE CAPITAL$6M1.1M shr

NEWDeep Track Capital$44M5.7M shr

NEWPolar Capital Holdings$30M3.9M shr

NEWARMISTICE CAPITAL$27M3.5M shr

BOUGHTRTW INVESTMENTS$9M1.1M shr

BOUGHTBlackRock$8M1.0M shr

Loading whale moves...

Institutional Trends (8 Quarters)

Loading ownership trends...

Institutional Holders

Loading top holders...