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Maplight Therapeutics (MPLT)10% owner bought ~$92.5M

Catalyst4, 10% owner at Maplight Therapeutics, bought ~$92.5M of Maplight Therapeutics shares.

~$92.5M
Approx. value · 5.44M sh @ $17.00
19.7M
Holds after · shares reported
Traded
Oct 28, 2025
Filed
Oct 29, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Oct 26, 2025Company filing · Form 8-K · Unregistered shares, Bylaws or charterSold new shares without registering them, and changed its bylaws, charter or fiscal year (and 1 more item)
  2. Oct 28, 2025 · this disclosureInsider10% owner purchased ~$92.5M of MPLT shares in the open market

What came next

  1. Oct 28, 2025Insider10% owner purchased ~$16.2M of MPLT shares in the open market
  2. Dec 4, 2025Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
  3. Jan 9, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
  4. Jan 28, 2026Insider · 1 personInsiders: 2 sales (~$122K)
  5. Jan 29, 2026InsiderDirector sold ~$394K of MPLT shares in the open market
  6. Jan 30, 2026InsiderDirector sold ~$120K of MPLT shares in the open market
  7. Feb 2, 2026InsiderDirector sold ~$127K of MPLT shares in the open market
  8. Feb 3, 2026InsiderDirector sold ~$18 of MPLT shares in the open market
  9. Feb 10, 2026Insider · 2 peopleInsiders: 1 purchase (~$253K), 1 sale (~$120K)
  10. Feb 11, 2026InsiderDirector sold ~$4.3K of MPLT shares in the open market
  11. Feb 13, 2026InsiderDirector sold ~$221K of MPLT shares in the open market
  12. Feb 18, 2026Insider · Their first buy on recordDirector purchased ~$186K of MPLT shares in the open market
  13. Feb 19, 2026InsiderDirector purchased ~$78K of MPLT shares in the open market
  14. Feb 20, 2026Insider · 2 peopleInsiders: 1 purchase (~$177K), 1 sale (~$40K)
  15. Feb 23, 2026Insider · 1 personInsiders: 2 sales (~$207K)
  16. Feb 24, 2026InsiderDirector sold ~$13K of MPLT shares in the open market
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Maplight Therapeutics

For Maplight Therapeutics, OQRO holds 52 insider filings (SEC Form 4 or Form 144) and 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MPLT page.

Other recent filings by Catalyst4, Inc., 10% owner

The full history of Catalyst4, Inc., 10% owner is on the profile page.

How this filing works

Other disclosures at Maplight Therapeutics

Everything OQRO holds on this company is on its MPLT page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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