Who owns Mereo BioPharma Group plc, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
EcoR1 Capital, LLC: 5,000,000 shares — Oleg Nodelman: 5,000,000 shares — EcoR1 Capital Fund Qualified, L.P.: 4,732,750 shares
BANK OF AMERICA CORP /DE/: 5.1% · 40,976,460 shares
8 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of Mereo BioPharma Group plc.
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Mereo BioPharma Group plc they hold. Together these 96 managers report 9.48% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| Rubric Capital Management LP | $4.86M | 15,307,347 | 0.04% | 1.92% | June 30, 2026 |
| 683 Capital Management, LLC | $3.74M | 11,777,856 | 0.18% | 1.48% | June 30, 2026 |
94 more institutional holders behind a free account
See every manager reporting Mereo BioPharma Group plc, how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 6 funds hold 0.08% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| iShares Genomics Immunology and Healthcare ETF | $62.4K | 0.04% | 0.03% | April 30, 2026 |
| State Street(R) SPDR(R) S&P(R) International Small Cap ETF | $42.8K | 0.00% | 0.02% | June 30, 2026 |
4 more funds behind a free account
See every fund holding Mereo BioPharma Group plc and what share of its net assets the position represents.
Sign up freeLoading...
