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MRSN
Ameriprise’s
Mersana Therapeutics
MRSN
Stock Holding History
Ameriprise’s Portfolio
MRSN Stock Details
MRSN Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2025
Q1
–
Sell
-2,133
Closed
-$76.3K
–
4107
2024
Q4
$76.3K
Buy
2,133
+307
+17%
+$15.9K
﹤0.01%
3979
2024
Q3
$86.3K
Buy
1,826
+4
+0.2%
+$176
﹤0.01%
3847
2024
Q2
$91.5K
Buy
1,822
+1,106
+154%
+$80K
﹤0.01%
3782
2024
Q1
$80.2K
Sell
716
-924
-56%
-$91.9K
﹤0.01%
3793
2023
Q4
$95.1K
Buy
+1,640
New
+$66K
﹤0.01%
3820
2023
Q3
–
Sell
-22,891
Closed
-$1.88M
–
3936
2023
Q2
$1.88M
Buy
+22,891
New
+$3.35M
﹤0.01%
2901
2023
Q1
–
Sell
-1,082
Closed
-$158K
–
4007
2022
Q4
$158K
Sell
1,082
-13
-1%
-$2.2K
﹤0.01%
3746
2022
Q3
$185K
Buy
+1,095
New
+$178K
﹤0.01%
3725
2021
Q1
–
Sell
-337
Closed
-$225K
–
3877
2020
Q4
$225K
Buy
+337
New
+$187K
﹤0.01%
3596
2019
Q4
–
Sell
-779
Closed
-$31K
–
3743
2019
Q3
$31K
Sell
779
-816
-51%
-$59.3K
﹤0.01%
3679
2019
Q2
$161K
Buy
+1,595
New
+$188K
﹤0.01%
3613
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$5.7T AUM
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1-Year Est. Return
SSA
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$12.3B AUM
37.17%
1-Year Est. Return
AQR Capital Management
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$218B AUM
29.41%
1-Year Est. Return
RSCM
Rock Springs Capital Management
Baltimore, Maryland
$1.7B AUM
93.03%
1-Year Est. Return
VA
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$2.68B AUM
422.73%
1-Year Est. Return
SCM
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$849M AUM
470.8%
1-Year Est. Return
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$70.5B AUM
36%
1-Year Est. Return
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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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