MREO

MEREO BIOPHARMA GROUP PL-ADR
USCUSIP 589492107
Institutional Owners
25
+3 QoQ
13F Value Held
$29.9M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)10 adding · 10 trimming
Insider net (180d)+$0
Price history not yet available for MREO.

Top institutional holders

25 13F filers
#FundPosition valueSharesLast moveAs of
1MANGROVE PARTNERS IM, LLC
$16.0M
7.79MReducedQ3 2025
2Rubric Capital Management LP
$5.1M
15.31MHeldQ1 2026
3EcoR1 Capital, LLC
$4.4M
13.37MAddedQ1 2026
4683 Capital Management, LLC
$4.0M
12.00MReducedQ1 2026
5Point72 Asset Management, L.P.
$160K
59.2KAddedQ2 2025
6GROUP ONE TRADING LLC
$111K
335.8KReducedQ1 2026
7STATE STREET CORP
$44K
133.4KAddedQ1 2026
8CITADEL ADVISORS LLC
$22K
67.8KReducedQ1 2026
9Caption Management, LLC
$21K
64.1KAddedQ1 2026
10StoneX Group Inc.
$12K
36.9KNewQ1 2026
11Centiva Capital, LP
$8K
25.0KHeldQ1 2026
12Engineers Gate Manager LP
$8K
24.0KReducedQ1 2026
13GAMMA Investing LLC
$6K
19.3KAddedQ1 2026
14IHT Wealth Management, LLC
$5K
15.0KNewQ1 2026
15MML INVESTORS SERVICES, LLC
$4K
12.2KHeldQ1 2026
16Arax Advisory Partners
$1K
4.0KHeldQ1 2026
17Rockefeller Capital Management L.P.
$833
2.0KNewQ4 2025
18MAI Capital Management
$102
309HeldQ1 2026
19SBI Securities Co., Ltd.
$38
114NewQ1 2026
20Sound Income Strategies, LLC
$22
66NewQ1 2026

Fund activity — latest quarter

Opened (NEW)
5
funds
Added
5
funds
Reduced
5
funds
Exited
5
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

22 funds+20 since Q4 2021
01122Q4 2021Q3 2022Q4 2023Q3 2024Q2 2025Q1 2026
funds holding aggregate valuelatest $14M

Funds that own MREO also own

CompanyCo-held byCombined value
Amazon.com IncAMZN19 funds$84.2B
Eli Lilly & CoLLY19 funds$33.8B
Unitedhealth Group IncUNH19 funds$12.8B
Capital One Financial CorpCOF19 funds$5.3B
Microsoft CorpMSFT18 funds$117.4B
Alphabet Inc Cl AGOOGL18 funds$67.6B
Broadcom LtdAVGO18 funds$61.1B
Tesla IncTSLA18 funds$43.7B
Visa Inc Cl AV18 funds$25.8B
Caterpillar IncCAT18 funds$25.2B
Costco Wholesale CorpCOST18 funds$18.8B
Advanced Micro Devices IncAMD18 funds$15.8B

Ranked by how many of MREO's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MREO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.