MapLight (MLPT) 10% Owner Catalyst4 Buys 1.21M Shares

What Happened
Catalyst4, Inc., a reported 10% owner of MapLight Therapeutics, Inc. (MLPT), acquired a total of 1,209,225 shares between July 28–30, 2026, in purchases reported on a Form 4. The purchases consisted of: 141,088 shares at a weighted-average $10.74 ($1,515,511), 65,137 shares at $11.69 ($761,393), 3,000 shares at $12.63 ($37,890), and a block of 1,000,000 shares at $13.00 ($13,000,000). These were purchase transactions (code P), i.e., net buys — typically viewed as a more informative signal than routine selling.

Key Details

• Transaction dates: 2026-07-28 (two tranches), 2026-07-29, and 2026-07-30.
• Prices/values: weighted averages noted — see breakdown above; total cash outlay ≈ $15,314,794.
• Shares owned after transaction: not specified in the filing.
• Filing timeliness: Form 4 filed 2026-07-30 for transactions through 7/30 — not indicated as late.
• Notable footnotes:
  • F1/F3 — some reported prices are weighted averages covering multiple trades (ranges $10.295–$11.28 and $11.31–$12.00); issuer/SEC staff may request per-trade details.
  • F2 — the shares are held of record by Catalyst4, Inc.; the named Catalyst4 board members share voting/dispositive power and disclaim beneficial ownership (this is institutional ownership, not direct executive trading).

Context
This filing reports institutional purchasing by a 10% shareholder (Catalyst4), not an individual executive. Purchases coded "P" are acquisitions (open-market or private), which many investors watch as a positive signal, though the filing itself does not state motive. The weighted-average price notes mean some tranches were executed across several trades at different per-share prices; more granular trade-level pricing can be requested from the issuer or SEC staff.