MEREO BIOPHARMA GROUP PLC (MREO) is held by 32 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BANK OF AMERICA CORP /DE/ as of Q1 2026.

Are institutions buying or selling MREO?

In Q1 2026, 13 institutions opened or increased positions in MEREO BIOPHARMA GROUP PLC while 22 reduced or exited — a net selling quarter.

What is the Smart Money Verdict on MREO?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for MEREO BIOPHARMA GROUP PLC.

How many hedge funds hold MREO?

32 institutional investors report holding MEREO BIOPHARMA GROUP PLC (MREO) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into MREO?

As of Q1 2026, tracked institutions in MEREO BIOPHARMA GROUP PLC show 13 buyers versus 22 sellers — net outflows.

MEREO BIOPHARMA GROUP PLC

MREO·589492107·US·ADR·Healthcare - Biotechnology-13D/G

Holders

Avg rating(9 Elite)

$5.4M

Total Value

37% (43)

Fund Consensus

13 buying - 22 selling

Smart Money Verdict

View all

Held by 32 funds

9 elite

Who's Trading

ActivistECEcoR1 Capital, LLC8.4%May 15, 2026

Activist

BANK OF AMERICA CORP /DE/5.1%May 14, 2026

Activist

JANUS HENDERSON GROUP PLC0.0%Feb 17, 2026

ActivistNVNorthpond Ventures, LP0.0%Feb 17, 2026

ActivistFLFrazier Life Sciences Public Fund, L.P.0.0%Feb 13, 2026

Activist68683 Capital Management, LLC8.2%Jan 6, 2026

ActivistMIMangrove Partners IM, LLC4.9%Nov 14, 2025

ActivistRSRock Springs Capital Management LP4.2%May 15, 2025

ActivistADAdage Capital Management, L.P.1.1%May 12, 2025

View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BANK OF AMERICA CORP /DE/	Increased	8.2M(+320x)	$2.7M	0.0%	-18.25%	42
MILLENNIUM MANAGEMENT LLC	Increased	3.6M(+4155.0%)	$1.2M	0.0%	-27.95%	41
UBS Group AG	Decreased	1.5M(-4.4%)	$491,742	0.0%	-80.39%	0
WAWealthspire Advisors, LLC	New	796,036	$262,692	0.0%	-17.07%	32
MWMARSHALL WACE, LLP	New	686,987	$226,706	0.0%	-17.07%	32
GROUP ONE TRADING LLC	Decreased	335,827(-24.0%)	$110,823	0.0%	-67.65%	0
BlackRock, Inc.	Decreased	302,991(-3.1%)	$99,986	0.0%	-89.29%	0
SUSQUEHANNA INTERNATIONAL GROUP, LLP	New	195,920	$64,654	0.0%	-17.07%	32
TWO SIGMA INVESTMENTS, LP	Decreased	187,839(-64.2%)	$61,987	0.0%	-85.12%	0
JANE STREET GROUP, LLC	Decreased	139,973(-60.7%)	$46,191	0.0%	-87.07%	0
STATE STREET CORP	Increased	133,379(+2.1%)	$44,015	0.0%	-87.18%	14
GEODE CAPITAL MANAGEMENT, LLC	Unchanged	92,534	$30,536	0.0%	-89.24%	0
XTX Topco Ltd	New	84,469	$27,875	0.0%	-17.07%	27
CACaption Management, LLC	Increased	64,064(+28.1%)	$21,141	0.0%	-83.14%	23
RENAISSANCE TECHNOLOGIES LLC	Decreased	48,400(-75.1%)	$15,972	0.0%	-79.80%	0
Centiva Capital, LP	Unchanged	25,000	$8,250	0.0%	-74.81%	0
EGEngineers Gate Manager LP	Decreased	23,954(-51.9%)	$7,905	0.0%	-8.11%	0
JPMORGAN CHASE & CO	New	21,848	$6,904	0.0%	-17.07%	25
RHUMBLINE ADVISERS	Increased	19,572(+2.2%)	$6,452	0.0%	-75.01%	11
OneDigital Investment Advisors LLC	Unchanged	18,300	$6,039	0.0%	-64.40%	0