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 		$14.7K Buy
46,000
+1,600
+4% +$480 ﹤0.01% 13085
2026
Q1 		$14.7K Buy
44,400
+8,100
+22% +$3.48K ﹤0.01% 12899
2025
Q4 		$15.2K Buy
36,300
+9,800
+37% +$18.7K ﹤0.01% 12006
2025
Q3 		$54.6K Sell
26,500
-85,100
-76% -$157K ﹤0.01% 11836
2025
Q2 		$302K Buy
111,600
+23,800
+27% +$57.4K ﹤0.01% 10312
2025
Q1 		$198K Sell
87,800
-14,100
-14% -$39.9K ﹤0.01% 10944
2024
Q4 		$357K Sell
101,900
-55,200
-35% -$217K ﹤0.01% 9448
2024
Q3 		$646K Buy
157,100
+49,600
+46% +$205K ﹤0.01% 7861
2024
Q2 		$387K Sell
107,500
-57,300
-35% -$186K ﹤0.01% 8873
2024
Q1 		$544K Buy
164,800
+144,100
+696% +$488K ﹤0.01% 8303
2023
Q4 		$47.8K Buy
20,700
+6,900
+50% +$13.2K ﹤0.01% 11732
2023
Q3 		$17.8K Sell
13,800
-6,500
-32% -$8.62K ﹤0.01% 11631
2023
Q2 		$26.8K Buy
+20,300
New +$23.5K ﹤0.01% 11557
2022
Q4 		– Sell
-110,800
Closed -$95K – 13211
2022
Q3 		$95K Buy
110,800
+28,100
+34% +$34.4K ﹤0.01% 11744
2022
Q2 		$93K Buy
+82,700
New +$64.1K ﹤0.01% 11541
2022
Q1 		– Sell
-29,700
Closed -$48K – 13615
2021
Q4 		$48K Sell
29,700
-60,000
-67% -$120K ﹤0.01% 12571
2021
Q3 		$217K Buy
89,700
+33,200
+59% +$87.9K ﹤0.01% 11309
2021
Q2 		$179K Sell
56,500
-50,000
-47% -$168K ﹤0.01% 11704
2021
Q1 		$359K Buy
+106,500
New +$376K ﹤0.01% 10228

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.