VivoSim Labs, INC. (VIVS)

Neutral

Institutional ownership roughly stable: -0.26% change quarter-over-quarter.

Data as of Q1 2026

Institutional Ownership

3.75%

QoQ Change

-0.26%

Total Value

$140.0M

Shares Outstanding

2.6M

Crowding AnalysisCrowded

Holders24of 5,944

Avg: 68

Uncrowded76th percentileCrowded

Institutional Activity

Buy/Sell Ratio0.9x

44th percentile

9 buying10 selling

New

-8

Closed

-6,658

Net shares

Holding Period Distribution

estimate

Median: 3 QAvg: 2.5 QHolders: 24

Ownership Concentration

Top 5: 89.0%Top 10: 99.4%

GEODE CAPITAL MANAGEMENT,37.6%

GOLDMAN SACHS GROUP16.4%

VANGUARD CAPITAL MANAGEMENT15.7%

BlackRock,12.1%

VANGUARD FIDUCIARY TRUST7.2%

Others (19)11.0%

Loading crowding analysis...

Conviction-Weighted Ownership

Median weight: 0.00%Avg weight: 0.00%Max: 0.00%High conviction (>1%): 0

GEODE CAPITAL MANAGEMENT,

GOLDMAN SACHS GROUP

VANGUARD CAPITAL MANAGEMENT

BlackRock,

VANGUARD FIDUCIARY TRUST

CITIGROUP

Tower Research Capital LLC (TRC)

UBS Group AG

SBI Securities Co.,

Allworth Financial

Loading conviction analysis...

Whale Moves Timeline (4 Quarters)

Biggest dollar-value position changes among top 10 holders

BOUGHTGEODE CAPITAL MANAGEMENT$23K16K shr

NEWGOLDMAN SACHS GROUP$23K16K shr

NEWVANGUARD CAPITAL MANAGEMENT$22K15K shr

NEWVANGUARD FIDUCIARY TRUST$10K7K shr

BOUGHTCITIGROUP$2K2K shr

NEWCITADEL ADVISORS$35K19K shr

SOLDTWO SIGMA INVESTMENTS$21K11K shr

NEWCITIGROUP$9K5K shr

BOUGHTGEODE CAPITAL MANAGEMENT$5K3K shr

BOUGHTTower Research Capital LLC (TRC)$1K687 shr

Loading whale moves...

Institutional Trends (5 Quarters)

Loading ownership trends...

Institutional Holders

Loading top holders...