SCM
MRSN

Sio Capital Management’s Mersana Therapeutics MRSN Stock Holding History

Sio Capital Management’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
2021
Q3 		– Sell
-6,290
Closed -$2.14M – 76
2021
Q2 		$2.14M Hold
6,290
– – 0.53% 54
2021
Q1 		$2.54M Sell
6,290
-1,108
-15% -$537K 0.52% 60
2020
Q4 		$4.92M Sell
7,398
-4,273
-37% -$2.38M 1.01% 31
2020
Q3 		$5.43M Sell
11,671
-3,200
-22% -$1.62M 1.08% 32
2020
Q2 		$8.7M Buy
14,871
+8,221
+124% +$2.81M 2.54% 10
2020
Q1 		$969K Hold
6,650
– – 0.32% 50
2019
Q4 		$953K Buy
+6,650
New +$486K 0.23% 60

Other funds holding MRSN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
SCM
Sarissa Capital Management Greenwich, Connecticut $178M AUM 118.43% 1-Year Est. Return
BG
Bellevue Group Kuesnacht, Switzerland $4.75B AUM 68.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
RSCM
Rock Springs Capital Management Baltimore, Maryland $2.05B AUM 161.37% 1-Year Est. Return
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return

Sio Capital Management's MRSN Position: Q3 2021 in Review

Sio Capital Management sold out of Mersana Therapeutics (MRSN) in Q3 2021, closing a stake of 6,290 shares — an estimated $2.14M sold.

Sio Capital Management first reported a position in MRSN in Q4 2019 and held it in 7 quarters. The position peaked at $8.7M in Q2 2020. 109 funds tracked by Wall St. Rank hold MRSN as of Q3 2021.

  • Sio Capital Management reported no remaining Mersana Therapeutics position as of Q3 2021 after selling out during the quarter.
  • Sio Capital Management sold 6,290 Mersana Therapeutics shares in Q3 2021, an estimated $2.14M.
  • Sio Capital Management first reported a position in Mersana Therapeutics in Q4 2019 and held it in 7 quarters.
  • Sio Capital Management's Mersana Therapeutics position peaked at $8.7M in Q2 2020.
  • 109 funds tracked by Wall St. Rank held Mersana Therapeutics as of Q3 2021.

Based on Sio Capital Management's 13F filing for Q3 2021, filed 15 Nov 2021.