X0609 4 2026-01-30 0 0001489993 Mobia Medical, Inc. MOBI 0001256742 HARRINGTON WILLIAM T false 2802 FLINTROCK TRACE, SUITE 226 AUSTIN TX 78738 1 0 1 0 0 Common Stock 2026-05-11 4 C 0 284324 A 284324 I See Footnote Common Stock 2026-05-11 4 C 0 264746 A 264746 I See Footnote Common Stock 2026-05-11 4 C 0 1455726 A 1740050 I See Footnote Common Stock 2026-05-11 4 C 0 872770 A 1137516 I See Footnote Common Stock 2026-05-11 4 P 0 266666 15 A 2006716 I See Footnote Common Stock 2026-05-11 4 P 0 266667 15 A 1404183 I See Footnote Convertible Notes 2026-01-30 4 A 0 3411892.25 3411892.25 A Common Stock 284324 3411892.25 I See Footnote Convertible Notes 2026-01-30 4 A 0 3176955.03 3176955.03 A Common Stock 264746 3176955.03 I See Footnote Stock Option 15 2026-05-07 4 A 0 31520 0 A 2036-05-07 Common Stock 31520 31520 D Convertible Notes 2026-05-11 4 C 0 3411892.25 D Common Stock 284324 0 I See Footnote Convertible Notes 2026-05-11 4 C 0 3176955.03 D Common Stock 264746 0 I See Footnote Series E-2 Preferred Stock 2026-05-11 4 C 0 3930352 D Common Stock 1128438 0 I See Footnote Series F Preferred Stock 2026-05-11 4 C 0 1139946 D Common Stock 327288 0 I See Footnote Series F Preferred Stock 2026-05-11 4 C 0 3039860 D Common Stock 872770 0 I See Footnote The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes. The securities are held by Osage University Partners III, LP ("OUP III"). Osage University GP III, LLC ("OUP III GP") is the general partner of OUP III. The Reporting Person is a manager of OUP III GP and may be deemed to share voting and dispositive power over the shares held by OUP III. Each of OUP III GP and the Reporting Person disclaims beneficial ownership over the securities held by OUP III, except to the extent of their pecuniary interests therein, if any. The securities are held by Osage University Partners IV, LP ("OUP IV"). Osage University GP IV, LLC ("OUP IV GP") is the general partner of OUP IV. The Reporting Person is a manager of OUP IV GP and may be deemed to share voting and dispositive power over the shares held by OUP IV. Each of OUP IV GP and the Reporting Person disclaims beneficial ownership over the securities held by OUP IV, except to the extent of their pecuniary interests therein, if any. Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms. This transaction occurred prior to the Issuer's registration of a class of equity securities under Section 12 of the Securities Exchange Act of 1934, as amended, in connection with the Offering, and is reported herein pursuant to Rule 16a-2(a). The stock option will vest in three substantially equal installments on the first three anniversaries of the grant date. /s/ Chase Leavitt, Attorney-in-Fact 2026-05-11