MAPLIGHT THERAPEUTICS INC (MPLT)
Institutional ownership reported to the SEC as of Q3 2026, across 4 quarters.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| MARKET STREET WEALTH MANAGEMENT ADVISORS LLC | $143.9K | 14,124 | 0.02% | 3q | HELD |
| Farther Finance Advisors, LLC | $2.9K | 282 | 0.00% | 4q | +135.0%+$1.7K |
| GAMMA Investing LLC | $1.9K | 190 | 0.00% | 3q | +54.5% |
| CoreCap Advisors, LLC | $92 | 9 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-20 | 13G | Nan Fung Group Holdings Limitedwith 9 co-filers | 5.5% |
| 2026-08-18 | 13D/A | Catalyst4, Inc.with 3 co-filers | 49.9% |
| 2026-08-03 | 13D/A | Catalyst4, Inc.with 3 co-filers | 47.9% |
| 2026-07-31 | 13D/A | Novo Holdings A/S | 4.9% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-18 | Kroeger Christopher A. | Chief Executive Officer | Sold | 118,235 | $3.2M ×2 |
| 2026-07-16 | Kroeger Christopher A. | Chief Executive Officer | Sold | 69,082 | $2.5M ×3 |
| 2026-07-15 | Kroeger Christopher A. | Chief Executive Officer | Sold | 61,778 | $2.3M ×3 |
| 2026-04-27 | GILLIS JONATHAN | CAAO and PAO | Sold | 51,900 | $1.5M ×3 |
| 2026-04-27 | Kreitzer Anatol | Chief Discovery Officer | Sold | 45,422 | $1.3M ×3 |
| 2026-07-15 | Foff Erin Pennock | Chief Medical Officer | Sold | 28,455 | $1.0M ×5 |
| 2026-05-08 | Kroeger Christopher A. | Chief Executive Officer | Sold | 34,411 | $952.8K ×3 |
| 2026-05-06 | Lillie James Woodruff | Chief Scientific Officer | Sold | 24,811 | $713.6K ×2 |
| 2026-07-17 | GILLIS JONATHAN | CAO and Interim CFO | Sold | 18,469 | $694.5K ×3 |
| 2026-05-06 | Foff Erin Pennock | Chief Medical Officer | Sold | 24,052 | $691.7K ×2 |
| 2026-05-06 | Kroeger Christopher A. | Chief Executive Officer | Sold | 23,701 | $681.6K ×2 |
| 2026-07-17 | Kreitzer Anatol | Chief Discovery Officer | Sold | 17,173 | $645.7K ×3 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 4 | $148.8K | 14,605 | 1 | 2 | 0 | 0.0% |
| Q2 2026 | 108 | $979.1M | 27,277,515 | 40 | 20 | 29 | 0.2% |
| Q1 2026 | 81 | $504.3M | 24,807,645 | 18 | 26 | 13 | 0.0% |
| Q4 2025 | 74 | $454.3M | 25,864,891 | 74 | 0 | 0 | 0.0% |