Yang Rick 4

What Happened
Rick Yang (reported as a 10% owner/manager) acquired a total of 450,045 securities of Korro Bio on March 10, 2026. He purchased 207,100 shares of common stock at $11.11 each for $2,300,881, and 242,945 pre-funded warrants at $11.11 each for $2,698,876 — total consideration $4,999,757. The purchases were made from the issuer pursuant to a Subscription Agreement dated March 9, 2026. Both transactions are coded as P (purchase).

Key Details

• Transaction date(s): March 10, 2026. Filing date: March 12, 2026 (Form 4) — appears timely.
• Prices and amounts: 207,100 common shares @ $11.11 = $2,300,881; 242,945 pre-funded warrants @ $11.11 = $2,698,876.
• Total acquired: 450,045 securities; total paid ≈ $4,999,757 (~$5.0M).
• Shares owned after transaction: not specified in the provided filing excerpt.
• Footnotes of note:
  • F1: Acquisitions were from the issuer under a Subscription Agreement dated Mar 9, 2026.
  • F2: Reporting person is a manager of NEA 17 GP, LLC (the GP structure described); the filing disclaims beneficial ownership of securities held by NEA 17 in which the reporting person has no pecuniary interest.
  • F3: The pre-funded warrants are exercisable into common stock subject to a 9.99% ownership cap (holder may increase this cap to up to 19.99% with prior notice).
• Transaction code: P = Purchase. The second line reflects a derivative (pre-funded warrant) acquisition, not a sale.

Context
Pre-funded warrants are purchased now and can be exercised into shares later; here they carry an ownership cap to avoid crossing specified percentage thresholds. This filing documents acquisitions (purchases), which investors often view as a more meaningful sign than routine sales, but the Form 4 does not state the buyer’s motive. The F2 structure indicates the reported interest involves an investment vehicle/manager relationship rather than only a personal, direct holding.