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Jefferies Financial Group’s Quantum-Si Incorporated QSI Stock Holding History

Jefferies Financial Group’s Portfolio QSI Stock Details QSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-12,300
Closed -$14.8K – 1719
2025
Q1 		$14.8K Buy
+12,300
New +$23.6K ﹤0.01% 1547

Other funds holding QSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Jefferies Financial Group's QSI Position: Q3 2025 in Review

Jefferies Financial Group sold out of Quantum-Si Incorporated (QSI) in Q3 2025, closing a stake of 20,000 shares — an estimated $39.2K sold.

Jefferies Financial Group first reported a position in QSI in Q3 2024 and held it in 3 quarters. The position peaked at $99.6K in Q1 2025. 125 funds tracked by Wall St. Rank hold QSI as of Q3 2025.

  • Jefferies Financial Group reported no remaining Quantum-Si Incorporated position as of Q3 2025 after selling out during the quarter.
  • Jefferies Financial Group sold 20,000 Quantum-Si Incorporated shares in Q3 2025, an estimated $39.2K.
  • Jefferies Financial Group first reported a position in Quantum-Si Incorporated in Q3 2024 and held it in 3 quarters.
  • Jefferies Financial Group's Quantum-Si Incorporated position peaked at $99.6K in Q1 2025.
  • 125 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q3 2025.

Based on Jefferies Financial Group's 13F filing for Q3 2025, filed 13 Nov 2025.