Catalyst4, Inc. - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Catalyst4, Inc. has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $107.81M.
Profile
Catalyst4, Inc. is a corporate entity that reports beneficial ownership of shares in MapLight Therapeutics, Inc. (MPLT) under U.S. securities law. It has submitted 1 SEC insider filing since 2025, most recently in October 2025.
| Filer type | Company |
|---|---|
| Role | 10% Owner |
| Notability | 20/100 |
Board memberships
- MapLight Therapeutics, Inc.
Trading Pattern
InsiderAlpha's records for Catalyst4, Inc. go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. The typical open-market purchase is $21.56M (5 buys totaling $107.81M). The largest single buy on record is $92.50M of MPLT in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Catalyst4, Inc. has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- 10% Owner at MapLight Therapeutics, Inc. (MPLT) - 1 filing, 2026
- Insider at MapLight Therapeutics, Inc. (MPLT) - 1 filing, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-30 | MPLT | MapLight Therapeutics, Inc. | P - Open-market purchase | 1.00M | $13.00 | $13.00M |
| 2026-07-30 | MPLT | MapLight Therapeutics, Inc. | P - Open-market purchase | 3.0K | $12.63 | $38K |
| 2026-07-30 | MPLT | MapLight Therapeutics, Inc. | P - Open-market purchase | 65.1K | $11.69 | $761K |
| 2026-07-30 | MPLT | MapLight Therapeutics, Inc. | P - Open-market purchase | 141.1K | $10.74 | $1.52M |
| 2025-10-29 | MPLT | MapLight Therapeutics, Inc. | P - Open-market purchase | 5.44M | $17.00 | $92.50M |
| 2025-10-29 | MPLT | MapLight Therapeutics, Inc. | J - Other acquisition / disposition | 14.26M | - |
Companies - Last 90 Days
- MapLight Therapeutics, Inc. (MPLT) - 1 filing, last 2026-07-30
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Catalyst4, Inc. has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Novo Holdings A/S - $16.20M of MPLT open-market activity in the last 12 months
- Christopher A. Kroeger - $12.54M of MPLT open-market activity in the last 12 months
- Jonathan Gillis - $3.56M of MPLT open-market activity in the last 12 months
- Erin Pennock Foff - $3.38M of MPLT open-market activity in the last 12 months
- Anatol Kreitzer - $2.78M of MPLT open-market activity in the last 12 months
- James Woodruff Lillie - $2.28M of MPLT open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- CDR Channel Holdings II, L.P.
- CF GROUP MANAGEMENT INC
- Dirkson R. Charles
- Jorey Chernett
- John W. Childs
- Mahesh Choudhury
- Jonathan H. Cohen
- Ryan Cohen
Frequently Asked Questions
What is Catalyst4, Inc.?
Catalyst4, Inc. is a corporate entity that reports beneficial ownership of shares in MapLight Therapeutics, Inc. (MPLT) under U.S. securities law. It has submitted 1 SEC insider filing since 2025, most recently in October 2025.…
How many SEC Form 4 filings has Catalyst4, Inc. submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Catalyst4, Inc. been buying or selling stock?
Recorded transactions: 5 open-market purchases ($107.81M) and 0 open-market sales across all tracked filings.
Where can I see all of Catalyst4, Inc.'s SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Catalyst4, Inc. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.