JY
MREO

Jeff Yass’s Mereo BioPharma MREO Stock Holding History

Jeff Yass’s Portfolio MREO Stock Details MREO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$67.8K Buy
213,270
+17,350
+9% +$5.2K ﹤0.01% 12709
2026
Q1 		$64.7K Buy
+195,920
New +$84.1K ﹤0.01% 12547
2025
Q4 		– Sell
-493,378
Closed -$939K – 13132
2025
Q3 		$1.02M Buy
493,378
+131,836
+36% +$243K ﹤0.01% 7323
2025
Q2 		$980K Buy
361,542
+187,164
+107% +$452K ﹤0.01% 7485
2025
Q1 		$392K Sell
174,378
-217,212
-55% -$614K ﹤0.01% 9442
2024
Q4 		$1.37M Buy
391,590
+5,160
+1% +$20.3K ﹤0.01% 6177
2024
Q3 		$1.59M Sell
386,430
-453,834
-54% -$1.88M ﹤0.01% 5768
2024
Q2 		$3.02M Sell
840,264
-779,363
-48% -$2.52M ﹤0.01% 4288
2024
Q1 		$5.34M Buy
1,619,627
+1,443,999
+822% +$4.89M ﹤0.01% 3535
2023
Q4 		$406K Buy
175,628
+72,358
+70% +$138K ﹤0.01% 9153
2023
Q3 		$133K Buy
+103,270
New +$137K ﹤0.01% 10673
2023
Q2 		– Sell
-43,089
Closed -$50K – 12743
2023
Q1 		$30.5K Buy
43,089
+29,989
+229% +$27K ﹤0.01% 11903
2022
Q4 		$9.82K Sell
13,100
-38,825
-75% -$31.9K ﹤0.01% 11939
2022
Q3 		$45K Sell
51,925
-15,154
-23% -$18.5K ﹤0.01% 12269
2022
Q2 		$75K Buy
+67,079
New +$52K ﹤0.01% 11718
2022
Q1 		– Sell
-61,937
Closed -$80.1K – 13614
2021
Q4 		$99K Buy
61,937
+23,355
+61% +$46.7K ﹤0.01% 12159
2021
Q3 		$93K Buy
38,582
+17,453
+83% +$46.2K ﹤0.01% 12106
2021
Q2 		$67K Buy
21,129
+5,175
+32% +$17.4K ﹤0.01% 12234
2021
Q1 		$54K Buy
+15,954
New +$56.4K ﹤0.01% 12016

Other funds holding MREO

RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
DCM
Defilade Capital Management Emeryville, California $747M AUM
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
TC
Tejara Capital London, United Kingdom $243M AUM 9.84% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Jeff Yass's MREO Position: Q2 2026 in Review

Jeff Yass increased its Mereo BioPharma (MREO) stake by 8.9% in Q2 2026, buying an estimated $5.2K and bringing the position to 213,270 shares worth $67.8K. The position accounts for ﹤0.01% of the portfolio, ranked #12709.

Jeff Yass first reported a position in MREO in Q1 2021 and has held it in 19 quarters since. The position peaked at $5.34M in Q1 2024. 61 funds tracked by Wall St. Rank hold MREO as of Q2 2026.

  • Jeff Yass held 213,270 shares of Mereo BioPharma worth $67.8K as of Q2 2026.
  • Jeff Yass bought 17,350 Mereo BioPharma shares in Q2 2026, an estimated $5.2K.
  • Mereo BioPharma made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #12709 holding.
  • Jeff Yass first reported a position in Mereo BioPharma in Q1 2021 and has held it in 19 quarters since.
  • Jeff Yass's Mereo BioPharma position peaked at $5.34M in Q1 2024.
  • 61 funds tracked by Wall St. Rank held Mereo BioPharma as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.