MEREO BIOPHARMA GROUP PLC

PublicCIK: 1719714
MREONASDAQ
13F Filings

Institutional Holders

MEREO BIOPHARMA GROUP PLCMREO— Latest position per institution from SEC 13F filings

15

Institutional holders

130.95M

Total shares held

153.58M

Estimated value

6.55M

Avg. position size

1

JANUS HENDERSON GROUP LTD.

CIK 1274173

Shares

16.29M

Value

33.64M

Filed

Sep 30, 2025

2

RUBRIC CAPITAL MANAGEMENT LP

CIK 1687509

Shares

15.31M

Value

4.86M

Filed

Jun 30, 2026

3

683 CAPITAL MANAGEMENT, LLC

CIK 1404574

Shares

11.78M

Value

3.74M

Filed

Jun 30, 2026

4

FRAZIER LIFE SCIENCES MANAGEMENT, L.P.

CIK 1892134

Shares

9.44M

Value

19.45M

Filed

Sep 30, 2025

5

BANK OF AMERICA CORP /DE/

CIK 70858

Shares

8.20M

Value

2.60M

Filed

Jun 30, 2026

6

MANGROVE PARTNERS IM, LLC

CIK 1535392

Shares

7.79M

Value

16.05M

Filed

Sep 30, 2025

7

ORBIMED ADVISORS LLC

CIK 1055951

Shares

7.75M

Value

5.48M

Filed

Mar 31, 2023

8

DEFILADE CAPITAL MANAGEMENT, L.P.

CIK 2088557

Shares

7.56M

Value

2.40M

Filed

Jun 30, 2026

9

DEERFIELD MANAGEMENT COMPANY, L.P.

CIK 1009258

Shares

6.71M

Value

18.19M

Filed

Jun 30, 2025

10

SCHONFELD STRATEGIC ADVISORS LLC

CIK 1665241

Shares

6.09M

Value

2.54M

Filed

Dec 31, 2025

11

ABERDEEN GROUP PLC

CIK 1716774

Shares

5.54M

Value

11.41M

Filed

Sep 30, 2025

12

ROCK SPRINGS CAPITAL MANAGEMENT LP

CIK 1595725

Shares

4.57M

Value

9.42M

Filed

Sep 30, 2025

13

CLEARLINE CAPITAL LP

CIK 1600136

Shares

3.83M

Value

7.90M

Filed

Sep 30, 2025

14

ALKEON CAPITAL MANAGEMENT LLC

CIK 1230239

Shares

3.70M

Value

7.62M

Filed

Sep 30, 2025

15

MILLENNIUM MANAGEMENT LLC

CIK 1273087

Shares

3.56M

Value

1.17M

Filed

Mar 31, 2026

16

BAKER BROS. ADVISORS LP

CIK 1263508

Shares

3.55M

Value

4.69M

Filed

Jun 30, 2023

17

NEWTYN MANAGEMENT, LLC

CIK 1569241

Shares

3M

Value

953.10K

Filed

Jun 30, 2026

18

BOXER CAPITAL, LLC

CIK 1465837

Shares

2.25M

Value

2.97K

Filed

Jun 30, 2023

19

TEJARA CAPITAL LTD

CIK 1879713

Shares

2.04M

Value

647.32K

Filed

Jun 30, 2026

20

DIADEMA PARTNERS LP

CIK 2026172

Shares

2M

Value

833.19K

Filed

Dec 31, 2025

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.