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Rothschild Investment LLC’s Quantum-Si Incorporated QSI Stock Holding History

Rothschild Investment LLC’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
2026
Q2 		$1.27K Sell
1,436
-252
-15% -$240 ﹤0.01% 2958
2026
Q1 		$1.31K Buy
1,688
+1,618
+2,311% +$1.68K ﹤0.01% 2754
2025
Q4 		$77 Buy
+70
New +$114 ﹤0.01% 3237
2024
Q3 		– Sell
-75
Closed -$79 – 2963
2024
Q2 		$79 Buy
+75
New +$120 ﹤0.01% 2769

Other funds holding QSI

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Rothschild Investment LLC's QSI Position: Q2 2026 in Review

Rothschild Investment LLC reduced its Quantum-Si Incorporated (QSI) stake by 15% in Q2 2026, selling an estimated $240 and leaving 1,436 shares worth $1.27K. The position accounts for ﹤0.01% of the portfolio, ranked #2958.

Rothschild Investment LLC first reported a position in QSI in Q2 2024 and has held it in 4 quarters since. The position peaked at $1.31K in Q1 2026. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

  • Rothschild Investment LLC held 1,436 shares of Quantum-Si Incorporated worth $1.27K as of Q2 2026.
  • Rothschild Investment LLC sold 252 Quantum-Si Incorporated shares in Q2 2026, an estimated $240.
  • Quantum-Si Incorporated made up ﹤0.01% of Rothschild Investment LLC's portfolio in Q2 2026, its #2958 holding.
  • Rothschild Investment LLC first reported a position in Quantum-Si Incorporated in Q2 2024 and has held it in 4 quarters since.
  • Rothschild Investment LLC's Quantum-Si Incorporated position peaked at $1.31K in Q1 2026.
  • 141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Rothschild Investment LLC's 13F filing for Q2 2026, filed 6 Aug 2026.