SEI Investments
MRSN

SEI Investments’s Mersana Therapeutics MRSN Stock Holding History

SEI Investments’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
Q2 		– Sell
-2,781
Closed -$23.9K – 2870
2025
Q1 		$23.9K Hold
2,781
– – ﹤0.01% 2733
2024
Q4 		$99.4K Buy
+2,781
New +$144K ﹤0.01% 2585
2023
Q2 		– Sell
-1,159
Closed -$119K – 2730
2023
Q1 		$119K Buy
+1,159
New +$163K ﹤0.01% 2560
2022
Q4 		– Sell
-812
Closed -$137K – 2626
2022
Q3 		$137K Buy
812
+122
+18% +$19.8K ﹤0.01% 2531
2022
Q2 		$80K Buy
+690
New +$64.9K ﹤0.01% 2584
2018
Q3 		– Sell
-1
Closed -$1K – 3079
2018
Q2 		$1K Buy
+1
New +$439 ﹤0.01% 3489

Other funds holding MRSN

NI
Nextech Invest Zurich, Switzerland $1.42B AUM 304.47% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SSA
Schonfeld Strategic Advisors New York $12.3B AUM 37.17% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
RSCM
Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
SCM
Silverarc Capital Management Boston, Massachusetts $849M AUM 470.8% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return