Mereo Biopharma Group PLC

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Mereo Biopharma Group PLC
TickerMREO
CIK #0001719714
CUSIP589492107
SectorLife Sciences - Pharmaceutical Preparations
AddressOne Cavendish Place Fourth Floor, London, W1G0QF
Source [EDGAR]
CIK Filing 2011 - 2025
[0001719714] 10-K
[0001719714] 10-Q
[0001719714] 3
[0001719714] 4
[0001719714] 6-K
[0001719714] 8-K
[0001719714] D
[0001719714] SC 13D
[0001719714] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Northpond Ventures LP Mereo Biopharma Group PLC [2025-06-11] 0.0
Frazier Life Sciences Public Fund LP Mereo Biopharma Group PLC [2025-04-04] 0.0
Janus Henderson Group PLC Mereo Biopharma Group PLC [2024-07-11] 5.2
Mangrove Partners IM LLC Mereo Biopharma Group PLC [2024-02-14] 6.24
Adage Capital Partners GP LLC Mereo Biopharma Group PLC [2024-02-05] 7.17
Soleus Private Equity Fund III LP Mereo Biopharma Group PLC [2023-07-26] 2.8
Rubric Capital Management LP Mereo Biopharma Group PLC [2022-05-26] 12.82
Rock Springs Capital Management LP Mereo Biopharma Group PLC [2022-02-15] 5.13
Rubric Capital Management LP Mereo Biopharma Group PLC [2021-12-02] 10.38
Point72 Asset Management LP Mereo Biopharma Group PLC [2021-03-01] 6.4
Suvretta Capital Management LLC Mereo Biopharma Group PLC [2021-02-19] 5.9
Baker Bros Advisors LP Mereo Biopharma Group PLC [2021-02-16] 11.4
OrbiMed Advisors LLC Mereo Biopharma Group PLC [2021-02-12] 5.33
Citadel Advisors LLC Mereo Biopharma Group PLC [2020-07-10] 8.9
Aspire Capital Fund LLC Mereo Biopharma Group PLC [2020-07-02] 6.11
Vivo Capital IX LLC Mereo Biopharma Group PLC [2020-06-12] 1.5
BlackRock Inc Mereo Biopharma Group PLC [2020-03-09] 13.2
Boxer Capital LLC Mereo Biopharma Group PLC [2020-03-02] 0.0
Mereo Biopharma Group PLC OncoMed Pharmaceuticals Inc [2018-12-17] 10.7
Form 3/4/5 Filer 2011 - 2025
Mereo BioPharma Group plc
Jenkins Annalisa
Bender Jeremy
Shames Daniel
Jacquet Pierre
Yoskowitz Marc J
Pakianathan Deepika
Ekblom Anders
Wyzga Michael S
Hughes-Wilson Alexandra
Lewicki John A.
Fox Christine Ann
Sermon Charles
Scots-Knight Denise
Rubric Capital Management LP
Rosen David Efraim
Roberts Justin Hunter
Form 13F Holdings
Firm Period DFND Voting Shares
Janus Henderson Group PLC [2025-06-30] DFND 0 17,688,592
Rubric Capital Management LP [2025-06-30] SOLE 15,307,347 15,307,347
Frazier Life Sciences Management LP [2025-06-30] SOLE 9,440,112 9,440,112
Mangrove Partners IM LLC [2025-06-30] SOLE 8,636,485 8,636,485
Deerfield Management Company LP [2025-06-30] DFND 6,710,429 6,710,429
Alkeon Capital Management LLC [2025-06-30] SOLE 4,698,100 4,698,100
Rock Springs Capital Management LP [2025-06-30] SOLE 4,465,292 4,465,292
683 Capital Management LLC [2025-06-30] DFND 4,350,000 4,350,000
Clearline Capital LP [2025-06-30] SOLE 3,618,163 3,618,163
Goldman Sachs Group Inc [2025-06-30] DFND 3,090,068 3,090,068
Aberdeen Group plc [2025-06-30] DFND 3,028,872 3,028,872
Tejara Capital Ltd [2025-06-30] SOLE 2,430,437 2,430,437
Renaissance Technologies LLC [2025-06-30] SOLE 1,480,471 1,480,471
FMR LLC [2025-06-30] DFND 1,478,500 1,478,500
Diadema Partners LP [2025-06-30] SOLE 1,357,000 1,357,000
Millennium Management LLC [2025-06-30] SOLE 595,673 1,037,373
Citadel Advisors LLC [2025-06-30] DFND 922,659 922,659
Schonfeld Strategic Advisors LLC [2025-06-30] SOLE 909,640 909,640
Morgan Stanley [2025-06-30] DFND 783,358 785,377
Marshall Wace LLP [2025-06-30] OTR 0 767,744
Atle Fund Management AB [2025-06-30] SOLE 2,072,882 764,901
Two Sigma Investments LP [2025-06-30] SOLE 659,158 659,158
Caption Management LLC [2025-06-30] SOLE 635,099 635,099
Susquehanna International Group LLP [2025-06-30] OTR 361,542 606,742
Soleus Capital Management LP [2025-06-30] SOLE 599,711 599,711
Jane Street Group LLC [2025-06-30] DFND 469,141 496,141
Artia Global Partners LP [2025-06-30] SOLE 475,361 475,361
BlackRock, Inc. [2025-06-30] SOLE 451,007 455,365
Hudson Bay Capital Management LP [2025-06-30] SOLE 450,000 450,000
Bank of America Corp /DE/ [2025-06-30] DFND 0 438,661
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