MPLT · Insider trading · 13F holders · Congress trades
MapLight Therapeutics, Inc. (MPLT)
Who is buying and selling MPLT: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 12
- Insider buys, 90 days
- $50.1M
- Insider sales, 90 days
- $1.5M
- Congress trades, 12 months
- 0
MPLT at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 7 MPLT insiders filed 1 open-market purchase worth $50.1M and 8 sales worth $1.5M on SEC Form 4; 2 of the sales were pre-planned under Rule 10b5-1.
- 12 13F filers hold MPLT among their 50 largest positions, worth $454.1M combined. The biggest bets by portfolio weight are Nan Fung Group Holdings Ltd (26.5%), Fcpm III Services B.v. (15.4%) and 5AM Venture Management, LLC (11.8%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in MPLT.
- MPLT last closed at $7.72 on Oct 29, 2026.
MPLT insider trading
Between Aug 1, 2026 and Oct 29, 2026, 7 MPLT insiders filed 1 open-market purchase worth $50.1M and 8 sales worth $1.5M on SEC Form 4; 2 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 16, 2026 | Kroeger Christopher A. | Chief Executive Officer, Director | Sale | 73,691 | $8.08 | $595K | SEC |
| Oct 16, 2026 | Foff Erin Pennock | Chief Medical Officer | Sale | 15,355 | $8.08 | $124K | SEC |
| Oct 16, 2026 | Kreitzer Anatol | Chief Discovery Officer | Sale | 12,248 | $7.84 | $96K | SEC |
| Oct 16, 2026 | Lillie James Woodruff | Chief Scientific Officer | Sale | 11,513 | $8.08 | $93K | SEC |
| Oct 16, 2026 | Gillis Jonathan | CAO and Interim CFO | Sale | 10,167 | $8.08 | $82K | SEC |
| Oct 16, 2026 | Hanson Kristopher | General Counsel | Sale | 9,020 | $8.08 | $73K | SEC |
| Sep 18, 2026 | Hanson Kristopher | General Counsel | Sale10b5-1 | 16,509 | $11.67 | $193K | SEC |
| Aug 18, 2026 | Catalyst4, Inc. | 10% Owner | Buy | 4,400,000 | $11.38 | $50.1M | SEC |
| Aug 4, 2026 | Lillie James Woodruff | Chief Scientific Officer | Sale10b5-1 | 22,082 | $12.54 | $277K | SEC |
Who owns MPLT? Hedge funds and superinvestors
12 13F filers hold MPLT among their 50 largest positions, worth $454.1M combined. The biggest bets by portfolio weight are Nan Fung Group Holdings Ltd (26.5%), Fcpm III Services B.v. (15.4%) and 5AM Venture Management, LLC (11.8%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Novo Holdings A/sInvestment manager | 7.7% | $132.1M | 3,686,622 | +0.0% shares | Q2 2026 |
| Fcpm III Services B.v.Hedge fund | 15.4% | $115.6M | 3,226,400 | +0.0% shares | Q2 2026 |
| Nan Fung Group Holdings LtdInvestment manager | 26.5% | $34.8M | 971,253 | +0.0% shares | Q2 2026 |
| 5AM Venture Management, LLCVenture capital | 11.8% | $34.0M | 950,011 | +0.0% shares | Q2 2026 |
| SanofiCorporation | 6.1% | $32.7M | 912,041 | +0.0% shares | Q2 2026 |
| Blue Owl Capital Holdings LPHedge fund | 4.0% | $26.2M | 729,929 | -27.4% shares | Q2 2026 |
| Paradigm Biocapital Advisors LPHedge fund | 0.5% | $24.6M | 685,852 | New | Q2 2026 |
| Pivotal bioVenture Partners Investment Advisor LLCVenture capital | 7.1% | $21.9M | 611,446 | -0.0% shares | Q2 2026 |
| Velan Capital Investment Management LPHedge fund | 10.8% | $17.7M | 492,893 | +0.0% shares | Q2 2026 |
| DAFNA Capital Management LLCHedge fund | 1.2% | $6.1M | 171,006 | +0.0% shares | Q2 2026 |
| Superstring Capital Management LPHedge fund | 2.8% | $4.5M | 125,432 | -34.7% shares | Q2 2026 |
| Stempoint Capital LPHedge fund | 0.7% | $3.8M | 106,906 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 12). Screen MPLT in the grand portfolio →
MPLT stock trades by members of Congress
No member of Congress has disclosed a trade in MPLT.
MPLT questions and answers
Are insiders buying MPLT stock?
Between Aug 1, 2026 and Oct 29, 2026, 7 MPLT insiders filed 1 open-market purchase worth $50.1M and 8 sales worth $1.5M on SEC Form 4; 2 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own MPLT?
12 13F filers hold MPLT among their 50 largest positions, worth $454.1M combined. The biggest bets by portfolio weight are Nan Fung Group Holdings Ltd (26.5%), Fcpm III Services B.v. (15.4%) and 5AM Venture Management, LLC (11.8%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
Has Congress traded MPLT?
No member of Congress has disclosed a trade in MPLT.
Who is the largest holder of MPLT?
Among 13F filers, Novo Holdings A/s reports the largest MPLT position, $132.1M (3,686,622 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Nan Fung Group Holdings Ltd's: 26.5% of its portfolio.
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