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RhumbLine Advisers’s
Quantum-Si Incorporated
QSI
Stock Holding History
RhumbLine Advisers’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
Q1
$149K
Sell
193,068
-527
-0.3%
-$546
﹤0.01%
3246
2025
Q4
$213K
Sell
193,595
-26,370
-12%
-$42.9K
﹤0.01%
3156
2025
Q3
$310K
Buy
219,965
+15,998
+8%
+$23.1K
﹤0.01%
2973
2025
Q2
$400K
Buy
203,967
+53,994
+36%
+$79.9K
﹤0.01%
2822
2025
Q1
$180K
Buy
149,973
+1,027
+0.7%
+$1.97K
﹤0.01%
3158
2024
Q4
$402K
Buy
148,946
+5,298
+4%
+$6.21K
﹤0.01%
2808
2024
Q3
$127K
Sell
143,648
-1,551
-1%
-$1.51K
﹤0.01%
3436
2024
Q2
$152K
Buy
145,199
+465
+0.3%
+$745
﹤0.01%
3376
2024
Q1
$285K
Buy
144,734
+3,963
+3%
+$6.92K
﹤0.01%
3011
2023
Q4
$283K
Sell
140,771
-2,069
-1%
-$3.15K
﹤0.01%
3006
2023
Q3
$237K
Buy
142,840
+4,088
+3%
+$9.85K
﹤0.01%
3062
2023
Q2
$248K
Buy
138,752
+2,330
+2%
+$3.65K
﹤0.01%
3122
2023
Q1
$240K
Buy
136,422
+1,808
+1%
+$3.57K
﹤0.01%
2689
2022
Q4
$246K
Buy
134,614
+2,018
+2%
+$5.2K
﹤0.01%
2735
2022
Q3
$365K
Buy
132,596
+7,503
+6%
+$24K
﹤0.01%
2638
2022
Q2
$290K
Buy
+125,093
New
+$479K
﹤0.01%
2774
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1-Year Est. Return
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$1.91T AUM
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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