X0508 4 2023-07-28 0001863294 DA32 Life Science Tech Acquisition Corp. DALS 0001831802 ARCH Venture Fund XI, L.P. 8755 WEST HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001847567 ARCH Venture Partners XI, L.P. 8755 WEST HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001847601 ARCH Venture Partners XI, LLC 8755 WEST HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001219042 NELSEN ROBERT 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001569248 Burow Kristina 8755 W. HIGGINS ROAD,SUITE 1025 CHICAGO IL 60631 0 0 1 0 0001229592 GILLIS STEVEN C/O ARCH VENTURE PARTNERS 8755 WEST HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 0 0 1 0 0 Class A Common Stock 2023-07-28 4 J 0 1600000 D 0 D Class A Common Stock 650000 I Through DA32 Sponsor LLC On July 28, 2023, the Issuer redeemed all of its outstanding shares of Class A common stock that were publicly traded for a redemption price of approximately $10.31 per share. This Form 4 is filed jointly by ARCH Venture Fund XI, L.P. ("AVF"), ARCH Venture Partners XI, L.P. ("AVP LP"), ARCH Venture Partners XI, LLC ("AVP LLC"), Kristina Burow, Robert Nelsen and Steven Gillis (collectively, the "Reporting Persons"). Keith Crandell has direct ownership of the Issuer's Class B Common Stock, as well as indirect pecuniary ownership of the Issuer's Class B Common Stock and shares of Class A common stock purchased in a private placement and is filing his own Form 4 separately. Burow, Crandell, Nelsen and Gillis comprise the investment committee of AVP LLC (the AVP X Committee Members). Each of the Reporting Persons is a member of a Section 13(d) group. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of such Reporting Person's pecuniary interest therein. DA32 Sponsor LLC ("Sponsor") owns 650,000 shares of Class A common stock purchased in a private placement concurrently with the Issuer's initial public offering. As a managing member of Sponsor, AVF may be deemed to beneficially own the securities owned directly by Sponsor. As the sole general partner of AVF, AVP LP may be deemed to beneficially own the securities owned directly by Sponsor. As the sole general partner of AVP LP, AVP LLC may be deemed to beneficially own securities owned directly by Sponsor. As the members of the investment committee, each of the AVP X Committee Members may be deemed to beneficially own securities owned directly by Sponsor. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of such Reporting Person's pecuniary interest therein. /s/ Mark McDonnell, Attorney-in-Fact for ARCH Venture Fund XI, L.P. 2023-08-10 /s/ Mark McDonnell, Attorney-in-Fact for ARCH Venture Partners XI, L.P. 2023-08-10 /s/ Mark McDonnell, Attorney-in-Fact for ARCH Venture Partners XI, LLC 2023-08-10 /s/ Mark McDonnell, Attorney-in-Fact for Robert Nelsen 2023-08-10 /s/ Mark McDonnell, Attorney-in-Fact for Kristina Burow 2023-08-10 /s/ Mark McDonnell, Attorney-in-Fact for Steven Gillis 2023-08-10