Who owns Third Harmonic Bio, Inc., 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.
Nantahala Capital Management, LLC: 0.0% · 0 shares — Wilmot B. Harkey: 0.0% · 0 shares — Daniel Mack: 0.0% · 0 shares
EcoR1 Capital, LLC: 0.0% · 0 shares — Oleg Nodelman: 0.0% · 0 shares — EcoR1 Capital Fund Qualified, L.P.: 0.0% · 0 shares
4 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of Third Harmonic Bio, Inc..
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 Third Harmonic Bio, Inc. they hold. Together these 4 managers report 0.05% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| RHUMBLINE ADVISERS | $107K | 19,980 | 0.00% | 0.04% | June 30, 2026 |
| GAMMA Investing LLC | $2.46K | 458 | 0.00% | 0.00% | June 30, 2026 |
2 more institutional holders behind a free account
See every manager reporting Third Harmonic Bio, Inc., 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 92 funds hold 5.63% 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 |
|---|---|---|---|---|
| Morgan Stanley Pathway Small-Mid Cap Equity ETF | $4.66K | 0.00% | 0.00% | February 28, 2026 |
| VANGUARD RUSSELL 2000 INDEX FUND | $3.6K | 0.00% | 0.27% | February 28, 2026 |
90 more funds behind a free account
See every fund holding Third Harmonic Bio, Inc. and what share of its net assets the position represents.
Sign up freeLoading...
