Mereo BioPharma Group plc (MREO) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

799,947,013Shares Outstanding
62,183,059Shares held by institutions
$18,033,087Value of institutional holdings
7.77%Institutional ownership %
56.73%Shares Changed QoQ
70No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Mereo BioPharma Group plc (NASDAQ:MREO) appears in 70 institutional 13F filings for the quarter ending December 2025.

62 Institutional Holders

62,183,059 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
Rubric Capital Management LP 31 Mar, 2026 15,307,347 0 0.00% $5,051,425.00
EcoR1 Capital, LLC 31 Mar, 2026 13,368,855 5,512,389 70.16% $4,411,722.00
683 Capital Management, LLC 31 Mar, 2026 12,000,000 -3,025,000 -20.13% $3,960,000.00
Bank Of America Corp /De/ 31 Mar, 2026 8,195,287 8,169,795 32,048.47% $2,704,445.00
Defilade Capital Management, L.P. 31 Mar, 2026 7,558,756 7,558,756 0.00% $2,494,389.00
Newtyn Management, LLC 31 Mar, 2026 7,079,056 6,854,434 3,051.54% $2,336,088.00
MILLENNIUM MANAGEMENT LLC 31 Mar, 2026 3,559,103 3,475,457 4,154.96% $1,174,504.00
Tejara Capital Ltd 31 Mar, 2026 2,037,520 -122,161 -5.66% $672,382.00
UBS Group AG 31 Mar, 2026 1,490,128 -68,803 -4.41% $491,742.00
Wealthspire Advisors, LLC 31 Mar, 2026 796,036 796,036 0.00% $262,692.00
MARSHALL WACE, LLP 31 Mar, 2026 686,987 686,987 0.00% $226,706.00
GROUP ONE TRADING LLC 31 Mar, 2026 335,827 -105,809 -23.96% $110,823.00
Rangeley Capital, LLC 31 Mar, 2026 329,200 -34,800 -9.56% $108,636.00
BlackRock, Inc. 31 Mar, 2026 302,991 -9,622 -3.08% $99,986.00
Knott David M Jr 31 Mar, 2026 300,337 0 0.00% $99,111.00
ACADIAN ASSET MANAGEMENT LLC 31 Mar, 2026 209,084 147,649 240.33% $68.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP 31 Mar, 2026 195,920 195,920 0.00% $64,654.00
TWO SIGMA INVESTMENTS, LP 31 Mar, 2026 187,839 -337,286 -64.23% $61,987.00
ADAR1 Capital Management, LLC 31 Mar, 2026 150,000 -150,000 -50.00% $49,500.00
JANE STREET GROUP, LLC 31 Mar, 2026 139,973 -216,031 -60.68% $46,191.00