SEC 13F Intelligence

Foresite Capital Management IV, LLC / QSI

Foresite Capital Management IV, LLC’s Quantum Si Inc Position

Does Foresite Capital Management IV, LLC own Quantum Si Inc (QSI)? Not currently — the last reported position was 1.77M shares worth $3M in Q1 2023; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$3M
Q1 2023
Shares
1.77M
% of Portfolio
+1.62%
Quarters Held
8
position exited

Position History QSI

Reported value by quarter
Q2 ’21: $55MQ2 ’21Q3 ’21: $37MQ3 ’21Q4 ’21: $35MQ4 ’21Q1 ’22: $21MQ1 ’22Q2 ’22: $4MQ2 ’22Q3 ’22: $5MQ3 ’22Q4 ’22: $3MQ4 ’22Q1 ’23: $3MQ1 ’23filingsflow.com
QuarterSharesValue% of Portfolio
Q1 20231.77M$3M+1.62%
Q4 20221.77M$3M+1.38%
Q3 20221.77M$5M+1.57%
Q2 20221.77M$4M+1.11%
Q1 20224.46M$21M+5.84%
Q4 20214.46M$35M+7.23%
Q3 20214.46M$37M+5.48%
Q2 20214.46M$55M+7.40%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Foresite Capital Management IV, LLC’s full portfolio or all institutional holders of QSI.