X0306 4 2020-12-08 0 0001816613 Markforged Holding Corp MKFG 0001554599 Hartz Kevin C/O MARKFORGED HOLDING CORPORATION 480 PLEASANT STREET WATERTOWN MA 02472 1 1 0 0 Chief Executive Officer Class B Ordinary Shares 2020-12-08 4 D 0 443700 0.004 D Class A Common Shares 443700 1774800 I See footnotes Class B Ordinary Shares 2020-12-08 4 D 0 39150 0.004 D Class A Common Shares 39150 156600 I See footnotes Class B Ordinary Shares 2020-12-08 4 D 0 39150 0.004 D Class A Common Shares 39150 156600 I See footnotes Warrant to Purchase Class A Ordinary Shares (right to buy) 11.50 2020-12-08 4 D 0 267750 2.00 D Class A Common Shares 267750 803250 I See footnotes Warrant to Purchase Class A Ordinary Shares (right to buy) 11.50 2020-12-08 4 D 0 23625 2.00 D Class A Common Shares 23625 70875 I See footnotes Warrant to Purchase Class A Ordinary Shares (right to buy) 11.50 2020-12-08 4 D 0 23625 2.00 D Class A Common Shares 23625 70875 I See footnotes The shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination. Prior to the date of the transactions in this report, the Reporting Person transferred his membership interest in A-Star LLC, the Issuer's sponsor and the direct owner of the securities reported herein ("A-Star"), to the trusts described in the footnotes below. The total number of securities that the Reporting Person may be deemed to beneficially own did not change as a result of these transfers. On December 8, 2020, A-Star admitted an additional member, in connection with which membership interests were transferred at the original purchase cost of the underlying securities. The Reporting Person disclaims beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly. Reflects the proportionate amount of securities the Reporting Person may be deemed to beneficially own in his capacity as co-trustee of the Hartz Family Revocable Trust, which is a member of A-Star. Reflects the proportionate amount of securities the Reporting Person may be deemed to beneficially own in his capacity as trustee of The Kevin Earnest Hartz 2020 Annuity Trust U/A/D, which is a member of A-Star. Reflects the proportionate amount of securities the Reporting Person may be deemed to beneficially own in connection with his spouse being a trustee of The Julia D. Hartz 2020 Annuity Trust U/A/D, which is a member of A-Star. The warrants are exercisable for shares of Class A ordinary shares beginning on the later of 30 days after the closing of the Issuer's initial business combination and the first anniversary of its initial public offering and expire on the fifth anniversary of the Issuer's initial business combination. /s/ Stephen Karp, Attorney-in-Fact 2022-02-25