Institutional Ownership
Quantum Si Inc
CUSIP 74765K105COM CL AQSIQ1 2026
Institutional Holders
152
13F filers
Shares Held
53.34M
Aggregate institutional
Institutional Value
$41.18M
Q1 2026
Net New Holders
+19
39 new · 20 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions39
Increased40
Decreased37
Sold out20
Institutional Holders
152 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | 13.41M | $10.38M | +360.9K | Added |
| 2 | Ark Investment Management LLC | 6.88M | $5.32M | −142.7K | Reduced |
| 3 | Amova Asset Management Americas, Inc. | 4.39M | $3.43M | −299.1K | Reduced |
| 4 | Sumitomo Mitsui Trust Group, Inc. | 4.39M | $3.40M | −299.1K | Reduced |
| 5 | Geode Capital Management, LLC | 3.84M | $2.97M | −279.3K | Reduced |
| 6 | State Street Corp | 3.77M | $2.92M | +208.0K | Added |
| 7 | Aqr Capital Management LLC | 2.39M | $1.85M | +2.31M | Added |
| 8 | Ubs Group AG | 1.70M | $1.32M | +253.0K | Added |
| 9 | Susquehanna International Group, LLP | 1.46M | $1.13M | −863.2K | Reduced |
| 10 | Northern Trust Corp | 1.26M | $975.8K | −947.2K | Reduced |
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