Institutional Ownership
Quantum Si Inc
CUSIP 74765K113*W EXP 06/10/202QSIAWQ1 2026
Institutional Holders
6
13F filers
Shares Held
451.7K
Aggregate institutional
Institutional Value
$50.0K
Q1 2026
Net New Holders
+2
2 new · 0 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions2
Increased0
Decreased3
Sold out0
Institutional Holders
6 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Deerfield Management Company, L.P. | 333.3K | $36.2K | 0 | Held |
| 2 | Susquehanna International Group, LLP | 85.1K | $10.2K | −10.0K | Reduced |
| 3 | Jane Street Group, LLC | 16.6K | $1.8K | −396 | Reduced |
| 4 | Wolverine Asset Management LLC | 14.5K | $1.6K | +14.5K | New |
| 5 | Ubs Group AG | 2.1K | $227 | −58 | Reduced |
| 6 | Toronto Dominion Bank | 100 | $11 | +100 | New |