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Mereo BioPharma Group plc

MREO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001719714

No open-market purchases or sales by Mereo BioPharma Group plc insiders were filed in the last 90 days; 60 institutions reported holding it in 13F filings for Q2 2026, worth $18.0M in total; no superinvestor holds it.

13F holders, Q1 2023

Institutional positions in Mereo BioPharma Group plc as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
58
−3 vs. Q4 2022
Shares held
60.8M
−763.0K (−1.2%) vs. Q4 2022
Total value
$43.0M
−$3.16M (−6.8%) vs. Q4 2022
New holders
7
15 more added
Sold out
10
14 more reduced

Compare with Q4 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MREO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2023: 58 institutions
Q1 2021: 67 institutionsQ2 2021: 72 institutionsQ3 2021: 63 institutionsQ4 2021: 73 institutionsQ1 2022: 60 institutionsQ2 2022: 64 institutionsQ3 2022: 63 institutionsQ4 2022: 61 institutionsQ1 2023: 58 institutionsQ2 2023: 53 institutionsQ3 2023: 56 institutionsQ4 2023: 64 institutionsQ1 2024: 80 institutionsQ2 2024: 79 institutionsQ3 2024: 77 institutionsQ4 2024: 91 institutionsQ1 2025: 90 institutionsQ2 2025: 86 institutionsQ3 2025: 84 institutionsQ4 2025: 70 institutionsQ1 2026: 63 institutionsQ2 2026: 60 institutions
Value heldQ1 2023: $43.0M
Q1 2021: $304.5MQ2 2021: $284.4MQ3 2021: $212.2MQ4 2021: $145.7MQ1 2022: $99.9MQ2 2022: $82.7MQ3 2022: $58.5MQ4 2022: $46.2MQ1 2023: $43.0MQ2 2023: $84.3MQ3 2023: $90.4MQ4 2023: $181.4MQ1 2024: $277.3MQ2 2024: $361.9MQ3 2024: $434.8MQ4 2024: $403.1MQ1 2025: $250.3MQ2 2025: $267.8MQ3 2025: $206.7MQ4 2025: $25.8MQ1 2026: $24.9MQ2 2026: $18.0M
Institutions holding MREO and their total value by quarter
QuarterHoldersValue
Q2 202660$18.0M
Q1 202663$24.9M
Q4 202570$25.8M
Q3 202584$206.7M
Q2 202586$267.8M
Q1 202590$250.3M
Q4 202491$403.1M
Q3 202477$434.8M
Q2 202479$361.9M
Q1 202480$277.3M
Q4 202364$181.4M
Q3 202356$90.4M
Q2 202353$84.3M
Q1 202358$43.0M
Q4 202261$46.2M
Q3 202263$58.5M
Q2 202264$82.7M
Q1 202260$99.9M
Q4 202173$145.7M
Q3 202163$212.2M
Q2 202172$284.4M
Q1 202167$304.5M

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding Mereo BioPharma Group plc; share changes are against Q4 2022.

Institutions holding MREO in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada29$00.00%−1−3.3%Reduced
US Bancorp13$90.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC48$340.00%00.0%Unchanged
Wells Fargo & Company229$1620.00%−1−0.4%Reduced
New England Capital Financial Advisors LLC300$2130.00%00.0%Unchanged
BNP Paribas Arbitrage, SA561$3970.00%00.0%Unchanged
Sit Investment Associates Inc970$1.00K0.00%00.0%Unchanged
Allworth Financial LP1,500$1.06K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.4,000$2.83K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.7,000$4.95K0.00%+3,000+75.0%Added
Group One Trading, L.P.8,130$5.75K0.00%−36,944−82.0%Reduced
Morgan Stanley9,019$6.38K0.00%−18,430−67.1%Reduced
CSS LLC10,735$7.59K0.00%00.0%Unchanged
Golden State Equity Partners14,400$10.2K0.01%+14,400New
Level Four Advisory Services, LLC20,000$14.1K0.00%00.0%Unchanged
Bank of America Corp21,183$15.0K0.00%−46,347−68.6%Reduced
Resources Investment Advisors, LLC.21,962$15.5K0.00%+21,962New
Oppenheimer & Co Inc24,000$17.0K0.00%00.0%Unchanged
Centiva Capital, LP25,000$17.8K0.00%00.0%Unchanged
Creative Planning38,320$27.1K0.00%+12,500+48.4%Added
Susquehanna International Group, LLP43,089$30.5K0.00%+29,989+228.9%Added
PFG Investments, LLC47,500$33.6K0.01%+47,500New
HSBC Holdings PLC58,217$40.9K0.00%00.0%Unchanged
Bessemer Group Inc58,000$41.0K0.00%00.0%Unchanged
SEI Investments Co58,718$41.5K0.00%+58,718New
Worth Venture Partners, LLC76,513$54.1K0.03%+76,513New
Clear Harbor Asset Management, LLC80,754$57.1K0.01%−3,246−3.9%Reduced
Forefront Analytics, LLC83,700$59.2K0.03%+10,200+13.9%Added
Jane Street Group, LLC91,093$64.4K0.00%−101,869−52.8%Reduced
UBS Group AG96,157$68.0K0.00%−32,384−25.2%Reduced
Geode Capital Management, LLC96,630$68.3K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC160,600$113.5K0.00%+4,600+2.9%Added
Privium Fund Management (UK) Ltd177,200$131.1K0.10%00.0%Unchanged
Acadian Asset Management LLC191,899$134.0K0.00%+191,899New
Barclays PLC190,007$134.3K0.00%+23,366+14.0%Added
Primecap Management Co296,530$209.6K0.00%−700−0.2%Reduced
Formidable Asset Management, LLC331,914$234.0K0.05%+43,834+15.2%Added
Toroso Investments, LLC331,914$235.0K0.01%+18,786+6.0%Added
JPMorgan Chase & Co427,133$302.0K0.00%+281,874+194.0%Added
Boothbay Fund Management, LLC427,403$302.1K0.01%+427,403New
J. Goldman & Co LP607,500$429.4K0.02%+297,000+95.7%Added
Renaissance Technologies LLC915,909$647.0K0.00%−341,460−27.2%Reduced
DAFNA Capital Management LLC1,096,513$775.1K0.23%00.0%Unchanged
Citigroup Inc1,130,650$799.3K0.00%+1,129,103+72,986.6%Added
Monaco Asset Management SAM1,316,245$930.5K0.42%−733,416−35.8%Reduced
Tekla Capital Management LLC1,551,082$1.10M0.04%00.0%Unchanged
683 Capital Management, LLC2,000,000$1.41M0.13%+1,875,000+1,500.0%Added
Clearline Capital LP2,052,709$1.45M0.22%00.0%Unchanged
Boxer Capital, LLC2,250,000$1.59M0.08%00.0%Unchanged
Goldman Sachs Group Inc2,262,785$1.60M0.00%−31,981−1.4%Reduced
Alkeon Capital Management LLC2,385,600$1.69M0.01%+250,000+11.7%Added
Tejara Capital Ltd2,435,806$1.72M0.88%+247,200+11.3%Added
Millennium Management LLC2,505,630$1.77M0.00%+1,194,281+91.1%Added
Citadel Advisors LLC3,047,960$2.15M0.00%−14,372−0.5%Reduced
Rock Springs Capital Management LP6,244,897$4.41M0.11%00.0%Unchanged
Suvretta Capital Management, LLC7,364,438$5.21M0.25%00.0%Unchanged
OrbiMed Advisors LLC7,747,891$5.48M0.11%−2,857,631−26.9%Reduced
Rubric Capital Management LP10,366,120$7.33M0.29%00.0%Unchanged
Artal Group S.A.0$00.00%−1,500,000−100.0%Sold out
Octagon Capital Advisors LP0$00.00%−1,000,000−100.0%Sold out
Ergoteles LLC0$00.00%−132,784−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−72,740−100.0%Sold out
Envestnet Asset Management Inc0$00.00%−37,367−100.0%Sold out
Virtu Financial LLC0$00.00%−19,745−100.0%Sold out
TCWP LLC0$00.00%−19,000−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−15,129−100.0%Sold out
Simplex Trading, LLC0$00.00%−6,190−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−358−100.0%Sold out