MapLight Therapeutics, Inc. (MPLT) Institutional Ownership Changes & 13F Activity
MapLight Therapeutics, Inc. (MPLT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Price T Rowe Associates Inc, Paradigm Biocapital Advisors Lp, Adar1 Capital Management, Llc, Freestone Grove Partners Lp, and Millennium Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +7,040 | — | 7,040 | $252.31K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Buy | +25,751 | — | 25,751 | $922.92K | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -918 | -86.4% | 144 | $5.16K | Q2 2026 | Aug 24, 2026 |
| Price T Rowe Associates Inc | Buy | +1,310,227 | +1162.5% | 1,422,935 | $51.00M | Q2 2026 | Aug 14, 2026 |
| Paradigm Biocapital Advisors Lp | Buy | +685,852 | — | 685,852 | $24.58M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Sell | -348,412 | -92.9% | 26,497 | $949.65K | Q2 2026 | Aug 14, 2026 |
| Freestone Grove Partners Lp | Sell | -145,045 | -46.2% | 168,912 | $6.05M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +128,841 | — | 128,841 | $4.62M | Q2 2026 | Aug 14, 2026 |
| Boxer Capital Management, Llc | Buy | +75,000 | — | 75,000 | $2.69M | Q2 2026 | Aug 14, 2026 |
| Superstring Capital Management Lp | Sell | -66,707 | -34.7% | 125,432 | $4.50M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +63,792 | — | 63,792 | $2.29M | Q2 2026 | Aug 14, 2026 |
| Lazard Asset Management Llc | Sell | -61,934 | -43.6% | 80,082 | $2.87M | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +51,983 | — | 51,983 | $1.86M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -46,561 | -2.3% | 1,948,312 | $69.83M | Q2 2026 | Aug 14, 2026 |
| Jain Global Llc | Buy | +45,551 | — | 45,551 | $1.63M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +35,595 | +188.6% | 54,464 | $1.95M | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Buy | +35,000 | — | 35,000 | $1.25M | Q2 2026 | Aug 14, 2026 |
| Weiss Asset Management Lp | Buy | +33,094 | — | 33,094 | $1.19M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Sell | -24,328 | -15.1% | 136,818 | $4.90M | Q2 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Sell | -20,209 | -0.7% | 2,781,728 | $99.70M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +14,658 | +142.9% | 24,919 | $893.10K | Q2 2026 | Aug 14, 2026 |
| Rafferty Asset Management, Llc | Buy | +13,853 | — | 13,853 | $496.49K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +7,186 | +124.1% | 12,975 | $465.02K | Q2 2026 | Aug 14, 2026 |
| Stempoint Capital Lp | Buy | +6,906 | +6.9% | 106,906 | $3.83M | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Buy | +6,455 | — | 6,455 | $231.35K | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +5,729 | — | 5,729 | $205.33K | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Buy | +5,709 | +12.4% | 51,917 | $1.86M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -5,100 | -36.2% | 8,998 | $322.49K | Q2 2026 | Aug 14, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Sell | -2,650 | -29.2% | 6,411 | $227.29K | Q2 2026 | Aug 14, 2026 |
| Metlife Investment Management, Llc | Sell | -2,445 | -25.0% | 7,353 | $263.53K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about MPLT activity
Which institutional owners are buying MPLT?
Institutional owners buying MPLT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MPLT activity?
"Buy" means an investor increased their reported position in MPLT compared to the prior reporting period. This reflects growing exposure to MapLight Therapeutics, Inc. (MPLT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MPLT increasing?
Institutional interest in MPLT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.