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 		$55.5K Sell
173,500
-30,100
-15% -$9.03K ﹤0.01% 12793
2026
Q1 		$67.2K Sell
203,600
-454,200
-69% -$195K ﹤0.01% 12532
2025
Q4 		$276K Buy
657,800
+507,500
+338% +$966K ﹤0.01% 10139
2025
Q3 		$310K Buy
150,300
+16,700
+13% +$30.8K ﹤0.01% 10036
2025
Q2 		$362K Buy
133,600
+40,600
+44% +$98K ﹤0.01% 9910
2025
Q1 		$209K Buy
93,000
+36,700
+65% +$104K ﹤0.01% 10837
2024
Q4 		$197K Sell
56,300
-135,700
-71% -$533K ﹤0.01% 10743
2024
Q3 		$789K Buy
192,000
+99,000
+106% +$410K ﹤0.01% 7374
2024
Q2 		$335K Sell
93,000
-26,100
-22% -$84.5K ﹤0.01% 9198
2024
Q1 		$393K Buy
119,100
+72,600
+156% +$246K ﹤0.01% 9074
2023
Q4 		$107K Sell
46,500
-55,300
-54% -$106K ﹤0.01% 11267
2023
Q3 		$131K Sell
101,800
-179,800
-64% -$239K ﹤0.01% 10690
2023
Q2 		$372K Buy
281,600
+248,400
+748% +$288K ﹤0.01% 9002
2023
Q1 		$23.6K Buy
+33,200
New +$29.9K ﹤0.01% 12003
2022
Q4 		– Sell
-23,900
Closed -$21K – 13210
2022
Q3 		$21K Sell
23,900
-23,500
-50% -$28.8K ﹤0.01% 12587
2022
Q2 		$53K Buy
47,400
+1,200
+3% +$930 ﹤0.01% 11947
2022
Q1 		$52K Buy
+46,200
New +$59.7K ﹤0.01% 12297
2021
Q4 		– Sell
-39,100
Closed -$95K – 13610
2021
Q3 		$95K Sell
39,100
-31,500
-45% -$83.4K ﹤0.01% 12097
2021
Q2 		$224K Sell
70,600
-2,000
-3% -$6.71K ﹤0.01% 11353
2021
Q1 		$245K Buy
+72,600
New +$257K ﹤0.01% 11030

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.