RI
MRUS

RTW Investments’s Merus MRUS Stock Holding History

RTW Investments’s Portfolio MRUS Stock Details MRUS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-2,025,277
Closed -$191M – 99
2025
Q3 		$191M Sell
2,025,277
-1,975,276
-49% -$129M 2.35% 12
2025
Q2 		$210M Sell
4,000,553
-168,840
-4% -$7.94M 3% 12
2025
Q1 		$175M Hold
4,169,393
– – 2.68% 14
2024
Q4 		$175M Hold
4,169,393
– – 2.65% 15
2024
Q3 		$208M Hold
4,169,393
– – 3.01% 13
2024
Q2 		$247M Buy
4,169,393
+60,000
+1% +$2.91M 3.82% 7
2024
Q1 		$185M Buy
4,109,393
+1,735,768
+73% +$70.4M 2.73% 12
2023
Q4 		$65.3M Buy
2,373,625
+376,861
+19% +$8.8M 1.02% 26
2023
Q3 		$47.1M Buy
1,996,764
+945,871
+90% +$22.9M 0.99% 27
2023
Q2 		$27.7M Buy
+1,050,893
New +$23M 0.53% 33
2022
Q1 		– Sell
-196,231
Closed -$6.24M – 115
2021
Q4 		$6.24M Buy
+196,231
New +$5.54M 0.09% 89

Other funds holding MRUS

DekaBank Deutsche Girozentrale
DekaBank Deutsche Girozentrale Frankfurt, Germany $59.2B AUM 26.02% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return
BIG
Brooklyn Investment Group Brooklyn, New York $3.2B AUM 26.32% 1-Year Est. Return
NAM
NTV Asset Management Charleston, West Virginia $1.02B AUM 31.16% 1-Year Est. Return
FFA
Farther Finance Advisors San Francisco, California $12.8B AUM 26.53% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return
EWA
EverSource Wealth Advisors Birmingham, Alabama $2.97B AUM 28.72% 1-Year Est. Return
PA
Parallel Advisors San Francisco, California $6.56B AUM 32.24% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

RTW Investments's MRUS Position: Q4 2025 in Review

RTW Investments sold out of Merus (MRUS) in Q4 2025, closing a stake of 2,025,277 shares — an estimated $191M sold.

RTW Investments first reported a position in MRUS in Q4 2021 and held it in 11 quarters. The position peaked at $247M in Q2 2024. 10 funds tracked by Wall St. Rank hold MRUS as of Q4 2025.

  • RTW Investments reported no remaining Merus position as of Q4 2025 after selling out during the quarter.
  • RTW Investments sold 2,025,277 Merus shares in Q4 2025, an estimated $191M.
  • RTW Investments first reported a position in Merus in Q4 2021 and held it in 11 quarters.
  • RTW Investments's Merus position peaked at $247M in Q2 2024.
  • 10 funds tracked by Wall St. Rank held Merus as of Q4 2025.

Based on RTW Investments's 13F filing for Q4 2025, filed 17 Feb 2026.