Latest Institutional Transactions on Mereo Biopharma Group PLC (MREO)
This table provides information on the latest institutional transactions involving Mereo Biopharma Group PLC (MREO) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Dec 02, 2025
Q3 2025
|
Allworth Financial LP
|
SELL
|
- |
-64- 3.91% |
$97.3 - $188
|
1.57K
$2.86K
|
|
|
Nov 21, 2025
Q3 2025
|
Forefront Analytics, LLC
West Conshohocken, PA |
BUY
|
- |
14K+ 73.37% |
$21.3K - $41.3K
|
33.2K
$60.4K
|
|
|
Nov 19, 2025
Q3 2025
|
Caitong International Asset Management Co., LTD
Hong Kong, K3 |
BUY
|
- |
3.93K+ 86.53% |
$5.98K - $11.6K
|
8.48K
$15.4K
|
|
|
Nov 14, 2025
Q3 2025
|
Mangrove Partners
New York, NY |
SELL
|
- |
-846K- 9.79% |
$1.29M - $2.49M
|
7.79M
$14.2M
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
97.6K+ 67.5% |
$148K - $287K
|
242K
$441K
|
|
|
Nov 14, 2025
Q3 2025
|
Caption Management, LLC
Oklahoma City, OK |
SELL
|
- |
-7.69K- 3.89% |
$11.7K - $22.6K
|
190K
$346K
|
|
|
Nov 14, 2025
Q3 2025
|
Caption Management, LLC
Oklahoma City, OK |
SELL
|
CALL |
-57K- 13.03% |
$86.6K - $168K
|
381K
$693K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
132K+ 36.46% |
$200K - $388K
|
493K
$898K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
SELL
|
PUT |
-85.1K- 76.25% |
$129K - $250K
|
26.5K
$48.2K
|
|
|
Nov 14, 2025
Q3 2025
|
Rock Springs Capital Management LP
Baltimore, MD |
BUY
|
- |
105K+ 2.36% |
$160K - $310K
|
4.57M
$8.32M
|
|
|
Nov 14, 2025
Q3 2025
|
Nomura Holdings Inc
Tokyo, M0 |
SELL
|
- |
-21.2K- 16.96% |
$32.2K - $62.3K
|
104K
$189K
|
|
|
Nov 14, 2025
Q3 2025
|
683 Capital Management, LLC
New York, NY |
BUY
|
- |
525K+ 12.07% |
$798K - $1.54M
|
4.88M
$8.87M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
SELL
|
- |
-258K- 43.34% |
$392K - $759K
|
338K
$614K
|
|
|
Nov 14, 2025
Q3 2025
|
Rockefeller Capital Management L.P.
New York, NY |
BUY
|
- |
2KNew |
$3.04K - $5.88K
|
2K
$3.64K
|
|
|
Nov 14, 2025
Q3 2025
|
Ubs Asset Management Americas Inc
Chicago, IL |
BUY
|
- |
1.91MNew |
$2.9M - $5.61M
|
1.91M
$3.47M
|
|
|
Nov 14, 2025
Q3 2025
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
BUY
|
- |
300+ 5.58% |
$456 - $882
|
5.68K
$10.3K
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
9.39K+ 45.42% |
$14.3K - $27.6K
|
30.1K
$54.7K
|
|
|
Nov 14, 2025
Q3 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
87.8K+ 195.27% |
$133K - $258K
|
133K
$242K
|
|
|
Nov 14, 2025
Q3 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
34.9KNew |
$53K - $102K
|
34.9K
$63.4K
|
|
|
Nov 14, 2025
Q3 2025
|
Janus Henderson Group PLC
London, X0 |
SELL
|
- |
-1.4M- 7.91% |
$2.13M - $4.11M
|
16.3M
$29.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Federation Des Caisses Desjardins Du Quebec
Levis, A8 |
BUY
|
- |
21.3KNew |
$32.3K - $62.5K
|
21.3K
$38.7K
|
|
|
Nov 14, 2025
Q3 2025
|
Diadema Partners LP
Morristown, NJ |
BUY
|
CALL |
203K+ 15.38% |
$308K - $596K
|
1.52M
$2.77M
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
429K+ 65.07% |
$652K - $1.26M
|
1.09M
$1.98M
|
|
|
Nov 14, 2025
Q3 2025
|
Scientech Research LLC
Jersey City, NJ |
BUY
|
- |
10.1KNew |
$15.4K - $29.8K
|
10.1K
$18.4K
|
|
|
Nov 14, 2025
Q3 2025
|
Schonfeld Strategic Advisors LLC
New York, NY |
BUY
|
- |
823K+ 90.48% |
$1.25M - $2.42M
|
1.73M
$3.15M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
SELL
|
PUT |
-231K- 80.01% |
$351K - $679K
|
57.7K
$105K
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
SELL
|
PUT |
-44.5K- 44.59% |
$67.6K - $131K
|
55.3K
$101K
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
2.41M+ 316.96% |
$3.66M - $7.09M
|
3.17M
$5.77M
|
|
|
Nov 14, 2025
Q3 2025
|
Cantor Fitzgerald, L. P.
New York, NY |
SELL
|
- |
-233K- 67.93% |
$354K - $685K
|
110K
$200K
|
|
|
Nov 14, 2025
Q3 2025
|
Clearline Capital LP
New York, NY |
BUY
|
- |
216K+ 5.97% |
$328K - $635K
|
3.83M
$6.98M
|
|
|
Nov 14, 2025
Q3 2025
|
Logos Global Management LP
San Francisco, CA |
BUY
|
- |
500KNew |
$760K - $1.47M
|
500K
$910K
|
|
|
Nov 14, 2025
Q3 2025
|
Xtx Topco LTD
London, X0 |
BUY
|
- |
122K+ 175.5% |
$185K - $358K
|
191K
$348K
|
|
|
Nov 14, 2025
Q3 2025
|
Aquatic Capital Management LLC
Chicago, IL |
BUY
|
- |
26.8K+ 99.45% |
$40.7K - $78.7K
|
53.7K
$97.8K
|
|
|
Nov 14, 2025
Q3 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
5New |
$7.6 - $14.7
|
5
$9.1
|
|
|
Nov 14, 2025
Q3 2025
|
Soleus Capital Management, L.P.
Greenwich, CT |
SELL
|
- |
-300K- 50.02% |
$456K - $882K
|
300K
$545K
|
|
|
Nov 14, 2025
Q3 2025
|
Virtu Financial LLC
New York, NY |
BUY
|
- |
16KNew |
$24.3K - $47K
|
16K
$29.1K
|
|
|
Nov 14, 2025
Q3 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
2.56M+ 326.08% |
$3.89M - $7.53M
|
3.35M
$6.09M
|
|
|
Nov 14, 2025
Q3 2025
|
Goldman Sachs Group Inc
New York, NY |
SELL
|
- |
-726K- 23.5% |
$1.1M - $2.13M
|
2.36M
$4.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of America Corp
Charlotte, NC |
SELL
|
- |
-39- 0.01% |
$59.3 - $115
|
439K
$798K
|
|
|
Nov 13, 2025
Q3 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
SELL
|
- |
-890K- 60.09% |
$1.35M - $2.62M
|
591K
$1.08M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
597K+ 159.88% |
$908K - $1.76M
|
971K
$1.77M
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
BUY
|
- |
256KNew |
$390K - $754K
|
256K
$467K
|
|
|
Nov 13, 2025
Q3 2025
|
Hudson Bay Capital Management LP
Greenwich, CT |
SELL
|
- |
-185K- 41.11% |
$281K - $544K
|
265K
$482K
|
|
|
Nov 13, 2025
Q3 2025
|
Wealthspire Advisors, LLC
New York, NY |
BUY
|
- |
1.03KNew |
$1.56K - $3.02K
|
1.03K
$1.87K
|
|
|
Nov 13, 2025
Q3 2025
|
Virtus Investment Advisers, Inc.
Hartford, CT |
BUY
|
- |
7.11K+ 21.01% |
$10.8K - $20.9K
|
40.9K
$74.5K
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
CALL |
5.2K+ 19.26% |
$7.9K - $15.3K
|
32.2K
$58.6K
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
205K+ 82.82% |
$311K - $602K
|
452K
$823K
|
|
|
Nov 13, 2025
Q3 2025
|
Alkeon Capital Management LLC
New York, NY |
SELL
|
- |
-1M- 21.29% |
$1.52M - $2.94M
|
3.7M
$6.73M
|
|
|
Nov 12, 2025
Q3 2025
|
Dld Asset Management, LP
New York, NY |
BUY
|
CALL |
94K+ 376.0% |
$143K - $276K
|
119K
$217K
|
|
|
Nov 12, 2025
Q3 2025
|
Knott David M Jr
Syosset, NY |
SELL
|
- |
-19K- 5.95% |
$28.9K - $55.9K
|
300K
$547K
|
|