Who owns MapLight Therapeutics 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.
Nan Fung Group Holdings Limited: 5.5% · 2,915,874 shares — NF Investment Holdings Limited: 5.5% · 2,911,774 shares — Nan Fung Life Sciences Holdings Limited: 2.4% · 1,283,052 shares
Catalyst4, Inc.: 49.9% · 27,536,011 shares — Robert Brown: 49.9% · 27,536,011 shares — Ekemini Riley: 49.9% · 27,536,011 shares
3 more 5% stakes behind a free account
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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 MapLight Therapeutics Inc they hold. Together these 128 managers report 63.84% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| NOVO HOLDINGS A/S | $132M | 3,686,622 | 7.67% | 8.11% | June 30, 2026 |
| FCPM III SERVICES B.V. | $116M | 3,226,400 | 15.41% | 7.10% | June 30, 2026 |
126 more institutional holders behind a free account
See every manager reporting MapLight Therapeutics 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 123 funds hold 13.63% 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 |
|---|---|---|---|---|
| T. Rowe Price Small-Cap Stock Fund, Inc. | $22.4M | 0.24% | 1.38% | June 30, 2026 |
| T. Rowe Price Small-Cap Value Fund, Inc. | $21.7M | 0.21% | 1.33% | June 30, 2026 |
121 more funds behind a free account
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