Which hedge funds own MPLT? MAPLIGHT THERAPEUTICS INC, Q2 2026 13F holders
20 tracked hedge funds disclosed a position in MPLT (MAPLIGHT THERAPEUTICS INC) in their Q2 2026 13F filings, worth $114.3m in total. The largest holder by portfolio weight is 5AM Venture Management, LLC at 11.8% of its book. 9 opened a new position this quarter: Paradigm Biocapital Advisors LP, Boxer Capital Management, LLC, Jain Global LLC, Trexquant Investment LP. 5 exited: Tetragon Partners GP Ltd, Vestal Point Capital, LP, RA Capital Management, L.P..
- 20
- Holders Tracked managers whose filing for the quarter reports a long equity position in the security.
- 9
- New this quarter Holders whose previous filing (at most two quarters earlier) did not report the security.
- 5
- Exited this quarter Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
- $38.4m
- Inflow, new holders Combined value of the positions the new holders reported for the quarter.
- $16.8m
- Outflow, exits Combined value the exiting managers reported for the security in their previous filing.
- $114m
- Combined value Sum of the holders' reported positions in the security.
- 1.6%
- Share of managers holding Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.
Holders, Q2 2026
| 5AM Venture Management, LLC Hedge fund | 11.8% | 0.0% | held |
| Superstring Capital Management LP Hedge fund | 2.8% | −35% | reduced |
| DAFNA Capital Management LLC Hedge fund | 1.2% | 0.0% | held |
| Stempoint Capital LP Hedge fund | 0.7% | +6.9% | added |
| Paradigm Biocapital Advisors LP Hedge fund | 0.5% | – | new |
| Boxer Capital Management, LLC Hedge fund | 0.2% | – | new |
| Seven Grand Managers, LLC Hedge fund | 0.1% | 0.0% | held |
| Burkehill Global Management, LP Hedge fund | 0.10% | 0.0% | held |
| Baker Bros. Advisors LP Hedge fund | 0.07% | 0.0% | held |
| ADAR1 Capital Management, LLC Hedge fund | 0.04% | −93% | reduced |
| Freestone Grove Partners LP Hedge fund | 0.04% | −46% | reduced |
| Jain Global LLC Hedge fund | 0.02% | – | new |
| Trexquant Investment LP Hedge fund | 0.01% | – | new |
| Ghisallo Capital Management LLC Hedge fund | 0.01% | 0.0% | held |
| Weiss Asset Management LP Hedge fund | 0.01% | – | new |
| Millennium Management LLC Hedge fund | 0.0% | – | new |
| Citadel Advisors LLC Hedge fund | 0.0% | – | new |
| Renaissance Technologies LLC Hedge fund | 0.0% | – | new |
| Two Sigma Investments, LP Hedge fund | 0.0% | −36% | reduced |
| Marshall Wace, LLP Hedge fund | 0.0% | – | new |
Exited since the previous filing
| Tetragon Partners GP Ltd | 0.4% | $2.3m |
| Vestal Point Capital, LP | 0.2% | $8.5m |
| RA Capital Management, L.P. | 0.05% | $5.0m |
| Tudor Investment Corp ET AL | 0.0% | $747k |
| Walleye Capital LLC | 0.0% | $235k |
Ownership over time
Who discovered MPLT first? Beta
| 5AM Venture Management, LLC high conviction | Q2 2026 | +4.9 pts |
| Superstring Capital Management LP | Q1 2026 | +2.1 pts |
| DAFNA Capital Management LLC | Q4 2025 | +0.7 pts |
Split-adjusted quarter-end prices, excluding dividends. They describe the stock while each manager held it, not the return it earned.