Institutional shares held 99.9 Million
2.23M calls
179K puts
Total value of holdings $182M
$4.06M calls
$325K puts
Market Cap $227M
124,986,000 Shares Out.
Institutional ownership 79.93%
# of Institutions 96


Latest Institutional Activity in MREO

Top Purchases

Q3 2025
Morgan Stanley Shares Held: 3.35M ($6.09M)
Q3 2025
Abrdn PLC Shares Held: 5.54M ($10.1M)
Q3 2025
Citadel Advisors LLC Shares Held: 3.17M ($5.77M)
Q3 2025
Ubs Asset Management Americas Inc Shares Held: 1.91M ($3.47M)
Q3 2025
Blue Owl Capital Holdings LP Shares Held: 1.25M ($2.28M)

Top Sells

Q3 2025
Janus Henderson Group PLC Shares Held: 16.3M ($29.6M)
Q3 2025
Alkeon Capital Management LLC Shares Held: 3.7M ($6.73M)
Q3 2025
Renaissance Technologies LLC Shares Held: 591K ($1.08M)
Q3 2025
Mangrove Partners Shares Held: 7.79M ($14.2M)
Q3 2025
Goldman Sachs Group Inc Shares Held: 2.36M ($4.3M)

About MREO

Mereo BioPharma Group plc, a biopharmaceutical company, develops and commercializes therapeutics for the treatment of oncology and rare diseases in the United Kingdom and internationally. Its lead product candidate, etigilimab (OMP-313M32), an antibody T-cell immunoreceptor with Ig and ITIM domains, which is in Phase 1b clinical trial for the treatment of tumor. The company is also developing Navicixizumab (OMP-305B83), which has completed Phase 1b clinical trials for the treatment of the late line ovarian cancer; Acumapimod (BCT-197), a p38 MAP kinase inhibitor that is in Phase II clinical trials to treat acute exacerbations of chronic obstructive pulmonary disease; and Leflutrozole (BGS-649), an oral aromatase inhibitor for the treatment of hypogonadotropic hypogonadism. In addition, it develops rare disease product candidates, including Setrusumab (BPS-804), a novel antibody for the treatment of osteogenesis imperfecta; and Alvelestat (MPH-966), an oral small molecule that is in Phase II clinical trial to treat Alpha-1 antitrypsin deficiency. The company has a collaboration with The University of Texas MD Anderson Cancer Center to evaluate anti-TIGIT therapeutic antibody candidate, etigilimab. Mereo BioPharma Group plc was incorporated in 2015 and is based in London, the United Kingdom.


Insider Transactions at MREO

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Last 12 Months Summary

Buy / Acquisition
0 Shares
From 0 Insiders
Sell / Disposition
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From 0 Insiders

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