X0306 4 2021-08-05 0 0001863294 DA32 Life Science Tech Acquisition Corp. DALS 0001831802 ARCH Venture Fund XI, L.P. 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 1 Member of 10% owner group 0001847567 ARCH Venture Partners XI, L.P. 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 0 0001847601 ARCH Venture Partners XI, LLC 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 0 0001219042 NELSEN ROBERT 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 0 0001569248 Burow Kristina 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 0 0001229592 GILLIS STEVEN 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK NY 10010 0 0 1 0 Class B Common Stock, par value $0.0001 per share 2021-08-05 4 J 0 701250 0.00 D Class A Common Stock 701250 4465000 I Through DA32 Sponsor LLC The shares of Class B Common Stock are convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Shares" in the Issuer's Registration Statement on Form S-1 (File No. 333-257679) (the "Registration Statement") and have no expiration date. On August 5, 2021, DA32 Sponsor LLC ("Sponsor") forfeited 701,250 shares of Class B Common Stock to the Issuer for no consideration in connection with the underwriters' election to forfeit their overallotment option on August 4, 2021. The forfeiture was not within the Reporting Persons' control as it occurred exclusively due to the underwriters' decision not to exercise the overallotment option and occurred shortly after the Issuer filed the final statutory prospectus for the initial public offering (the "IPO") disclosing all material information about the Issuer and the IPO. 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 A Common Stock and Class B Common Stock 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. 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. See Exhibit 99.1 - Joint Filer Information, which is incorporated herein by reference and describes in further detail the relationships of the Reporting Persons to the Issuer. Henrikki Harsu, Attorney-in-Fact: Power of Attorney, which is hereby incorporated by reference to Exhibit 24.1, 24.2, 24.3, 24.4, 24.5 and 24.6 to a Form 3 with regard to DA32 Life Science Tech Acquisition Corp. filed with the Securities and Exchange Commission on July 27, 2021 by ARCH Venture Fund XI, L.P., ARCH Venture Partners XI, L.P., ARCH Venture Partners XI, LLC, Kristina Burow, Robert Nelsen and Steven Gillis. /s/ Henrikki Harsu, Attorney-in-Fact for ARCH Venture Fund XI, L.P. 2021-08-09 /s/ Henrikki Harsu, Attorney-in-Fact for ARCH Venture Partners XI, L.P. 2021-08-09 /s/ Henrikki Harsu, Attorney-in-Fact for ARCH Venture Partners XI, LLC 2021-08-09 /s/ Henrikki Harsu, Attorney-in-Fact for Robert Nelsen 2021-08-09 /s/ Henrikki Harsu, Attorney-in-Fact for Kristina Burow 2021-08-09 /s/ Henrikki Harsu, Attorney-in-Fact for Steven Gillis 2021-08-09