BlackRock
MRUS

BlackRock’s Merus MRUS Stock Holding History

BlackRock’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
-2,172,015
Closed -$204M – 5602
2025
Q3 		$204M Buy
2,172,015
+1,121,073
+107% +$73M ﹤0.01% 1652
2025
Q2 		$55.3M Sell
1,050,942
-640,927
-38% -$30.1M ﹤0.01% 2393
2025
Q1 		$71.2M Buy
1,691,869
+104,708
+7% +$4.57M ﹤0.01% 2188
2024
Q4 		$66.7M Sell
1,587,161
-58,248
-4% -$2.8M ﹤0.01% 2291
2024
Q3 		$82.2M Buy
1,645,409
+119,660
+8% +$6.25M ﹤0.01% 2195
2024
Q2 		$90.3M Buy
1,525,749
+57,825
+4% +$2.8M ﹤0.01% 2085
2024
Q1 		$66.1M Buy
1,467,924
+38,031
+3% +$1.54M ﹤0.01% 2291
2023
Q4 		$39.3M Sell
1,429,893
-36,043
-2% -$842K ﹤0.01% 2629
2023
Q3 		$34.6M Buy
1,465,936
+280,116
+24% +$6.79M ﹤0.01% 2625
2023
Q2 		$31.2M Buy
1,185,820
+584,094
+97% +$12.8M ﹤0.01% 2765
2023
Q1 		$11.1M Sell
601,726
-31,435
-5% -$548K ﹤0.01% 3255
2022
Q4 		$9.8M Buy
633,161
+112,031
+21% +$1.97M ﹤0.01% 3405
2022
Q3 		$10.4M Sell
521,130
-18,398
-3% -$439K ﹤0.01% 3406
2022
Q2 		$12.2M Buy
539,528
+2,728
+0.5% +$57K ﹤0.01% 3405
2022
Q1 		$14.2M Sell
536,800
-160,822
-23% -$4.31M ﹤0.01% 3386
2021
Q4 		$22.2M Buy
697,622
+418,306
+150% +$11.8M ﹤0.01% 3211
2021
Q3 		$6.14M Buy
279,316
+27,740
+11% +$595K ﹤0.01% 3873
2021
Q2 		$5.3M Buy
251,576
+172,036
+216% +$3.8M ﹤0.01% 3854
2021
Q1 		$1.66M Buy
79,540
+11,156
+16% +$257K ﹤0.01% 4349
2020
Q4 		$1.2M Sell
68,384
-6,007
-8% -$88.8K ﹤0.01% 4172
2020
Q3 		$893K Buy
74,391
+2,534
+4% +$32.7K ﹤0.01% 4144
2020
Q2 		$1.16M Buy
+71,857
New +$1.04M ﹤0.01% 4011
2020
Q1 		– Sell
-1,410
Closed -$20K – 5038
2019
Q4 		$20K Sell
1,410
-4,982
-78% -$80.1K ﹤0.01% 4655
2019
Q3 		$114K Sell
6,392
-2,481
-28% -$40.7K ﹤0.01% 4423
2019
Q2 		$130K Hold
8,873
– – ﹤0.01% 4429
2019
Q1 		$131K Buy
+8,873
New +$113K ﹤0.01% 4332
2017
Q2 		– Sell
-200
Closed -$5K – 5077
2017
Q1 		$5K Buy
+200
New +$5.11K ﹤0.01% 4793

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

BlackRock's MRUS Position: Q4 2025 in Review

BlackRock sold out of Merus (MRUS) in Q4 2025, closing a stake of 2,172,015 shares — an estimated $204M sold.

BlackRock first reported a position in MRUS in Q1 2017 and held it in 27 quarters. The position peaked at $204M in Q3 2025. 10 funds tracked by Wall St. Rank hold MRUS as of Q4 2025.

  • BlackRock reported no remaining Merus position as of Q4 2025 after selling out during the quarter.
  • BlackRock sold 2,172,015 Merus shares in Q4 2025, an estimated $204M.
  • BlackRock first reported a position in Merus in Q1 2017 and held it in 27 quarters.
  • BlackRock's Merus position peaked at $204M in Q3 2025.
  • 10 funds tracked by Wall St. Rank held Merus as of Q4 2025.

Based on BlackRock's 13F filing for Q4 2025, filed 12 Feb 2026.