MEREO BIOPHARMA GROUP PLC (MREO): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in MREO · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
5
13F filers
Aggregate Value
$635K
Across holders
Last Price
$0.29
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity3 increased1 reduced1 exited
Full exits: MILLENNIUM MANAGEMENT LLC
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 1.32M | $419K | 66.0% | 0.0% | Added | +$359K | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 444K | $141K | 22.2% | 0.0% | Added | +$98K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 180K | $58K | 9.1% | 0.0% | Reduced | $-331K | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 52K | $17K | 2.6% | 0.0% | Added | +$1K | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 2K | $635 | 0.1% | 0.0% | Unchanged | +$0 | Q2 2026 |
Added
Hedge Fund
$419K· 66.0% of total· 0.0% port· 1.32M sh· +$359K QoQ· Q2 2026
Added
Hedge Fund
$141K· 22.2% of total· 0.0% port· 444K sh· +$98K QoQ· Q2 2026
Reduced
Hedge Fund
$58K· 9.1% of total· 0.0% port· 180K sh· $-331K QoQ· Q2 2026
Added
Hedge Fund
$17K· 2.6% of total· 0.0% port· 52K sh· +$1K QoQ· Q2 2026
Unchanged
Hedge Fund
$635· 0.1% of total· 0.0% port· 2K sh· +$0 QoQ· Q2 2026
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