Morgan Stanley
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Morgan Stanley’s Quantum-Si Incorporated QSI Stock Holding History

Morgan Stanley’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 		$286K Buy
323,482
+193,542
+149% +$184K ﹤0.01% 5797
2026
Q1 		$101K Sell
129,940
-270,054
-68% -$280K ﹤0.01% 6160
2025
Q4 		$440K Buy
399,994
+128,994
+48% +$210K ﹤0.01% 5573
2025
Q3 		$382K Sell
271,000
-18,913
-7% -$27.3K ﹤0.01% 5619
2025
Q2 		$568K Buy
289,913
+2,425
+0.8% +$3.59K ﹤0.01% 5408
2025
Q1 		$345K Sell
287,488
-3,192,980
-92% -$6.12M ﹤0.01% 5500
2024
Q4 		$9.4M Buy
3,480,468
+3,174,221
+1,036% +$3.72M ﹤0.01% 3461
2024
Q3 		$270K Buy
306,247
+135,712
+80% +$132K ﹤0.01% 5637
2024
Q2 		$179K Sell
170,535
-57,132
-25% -$91.6K ﹤0.01% 5732
2024
Q1 		$449K Sell
227,667
-15,608
-6% -$27.3K ﹤0.01% 5360
2023
Q4 		$489K Sell
243,275
-27,792
-10% -$42.4K ﹤0.01% 5307
2023
Q3 		$450K Buy
271,067
+7,970
+3% +$19.2K ﹤0.01% 5218
2023
Q2 		$471K Sell
263,097
-437
-0.2% -$685 ﹤0.01% 5246
2023
Q1 		$464K Buy
263,534
+118,774
+82% +$234K ﹤0.01% 5300
2022
Q4 		$265K Buy
144,760
+37,004
+34% +$95.3K ﹤0.01% 5553
2022
Q3 		$297K Buy
107,756
+12,354
+13% +$39.5K ﹤0.01% 5535
2022
Q2 		$221K Sell
95,402
-7,620
-7% -$29.2K ﹤0.01% 5850
2022
Q1 		$481K Buy
103,022
+18,486
+22% +$90.1K ﹤0.01% 5425
2021
Q4 		$665K Buy
84,536
+5,128
+6% +$38.6K ﹤0.01% 5379
2021
Q3 		$662K Buy
79,408
+15,781
+25% +$155K ﹤0.01% 5326
2021
Q2 		$780K Buy
63,627
+57,052
+868% +$598K ﹤0.01% 5230
2021
Q1 		$78K Buy
+6,575
New +$79.5K ﹤0.01% 6143

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

Morgan Stanley's QSI Position: Q2 2026 in Review

Morgan Stanley increased its Quantum-Si Incorporated (QSI) stake by 149% in Q2 2026, buying an estimated $184K and bringing the position to 323,482 shares worth $286K. The position accounts for ﹤0.01% of the portfolio, ranked #5797.

Morgan Stanley first reported a position in QSI in Q1 2021 and has held it in 22 quarters since. The position peaked at $9.4M in Q4 2024. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

  • Morgan Stanley held 323,482 shares of Quantum-Si Incorporated worth $286K as of Q2 2026.
  • Morgan Stanley bought 193,542 Quantum-Si Incorporated shares in Q2 2026, an estimated $184K.
  • Quantum-Si Incorporated made up ﹤0.01% of Morgan Stanley's portfolio in Q2 2026, its #5797 holding.
  • Morgan Stanley first reported a position in Quantum-Si Incorporated in Q1 2021 and has held it in 22 quarters since.
  • Morgan Stanley's Quantum-Si Incorporated position peaked at $9.4M in Q4 2024.
  • 141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Morgan Stanley's 13F filing for Q2 2026, filed 13 Aug 2026.