Carmen Chang - 10 Mar 2026 Form 4 Insider Report for Korro Bio, Inc. (KRRO)

Role
10%+ Owner
Signature
/s/ Zachary Bambach, attorney-in-fact
Issuer symbol
KRRO
Transactions as of
10 Mar 2026
Net transactions value
+$2,300,881
Form type
4
Filing time
12 Mar 2026, 20:15:12 UTC
Previous filing
11 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Chang Carmen 10%+ Owner 2855 SAND HILL ROAD, MENLO PARK /s/ Zachary Bambach, attorney-in-fact 12 Mar 2026 0001746342

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KRRO Common Stock Purchase $2,300,881 +207,100 +19% $11.11 1,297,893 10 Mar 2026 See Note 2 F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction KRRO Pre-Funded Warrants Purchase +242,945 $11.11 242,945 10 Mar 2026 Common Stock 242,945 $0.001000 See Note 2 F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Carmen Chang is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Acquired from the Issuer on March 10, 2026 pursuant to a Subscription Agreement dated March 9, 2026.
F2 The Reporting Person is a manager of NEA 17 GP, LLC, which is the sole general partner of NEA Partners 17, L.P. ("NEA Partners 17"). NEA Partners 17 is the sole general partner of New Enterprise Associates 17, L.P. ("NEA 17"), the direct beneficial owner of the securities. The Reporting Person disclaims beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the securities held by NEA 17 in which the Reporting Person has no pecuniary interest.
F3 The Pre-Funded Warrants are exercisable at any time after their issuance; provided, however, that the Pre-Funded Warrants may not be exercised to the extent such exercise would cause the number of shares of the Issuer's Common Stock owned by the holder (together with its affiliates and certain other related parties) to exceed 9.99% of the total number of shares of the Issuer's Common Stock immediately after giving effect to such exercise, which percentage may be increased or decreased at the option of the holder upon 61 days' prior notice to the Issuer, not to exceed 19.99%.