Stockholders' equity | 9. Stockholders’ equity Common Stock On December 8, 2021, the stockholders of the Company approved an amendment (the “Charter Amendment”) to the Company’s Amended and Restated Certificate of Incorporation to increase the total number of authorized shares of common stock of the Company from 10,000,000 to 40,000,000, which became effective on December 17, 2021. On December 7, 2022, the stockholders of the Company approved another amendment to the Company’s Amended and Restated Certificate of Incorporation to increase the number of authorized shares of common stock from 40,000,000 to 160,000,000. The Charter Amendment was filed with the Secretary of State of the State of Delaware and became effective December 9, 2022. On July 26, 2023, the Company effected a 1-for-17 Warrants On December 6, 2019, investors were issued 4 Purchase Warrants that were exercisable into 12,600 fully paid shares of common stock should the Purchase Warrants be exercised in full (“Purchase Warrants”). The exercise price for the Purchase Warrants is US$178.50 per share issued on exercise of a Purchase Warrant. The Purchase Warrants are exercisable, in whole or in part, any time from the date of issue until the fifth anniversary of the date of issue (December 6, 2024). On April 22, 2020, the Company issued 2,201 shares of common stock in connection with a cashless exercise of Purchase Warrants exercisable for 6,300 shares of common stock. The Company did not have an effective registration statement registering the resale of the Warrant Shares by the Holder at the time the Holder wanted to exercise the warrant; therefore, the Holder carried out a cashless exercise. The formula for conducting a cashless exercise was outlined in the Warrant agreement. Based on this formula, the Holder would have been entitled to receive 6,300 shares of common stock if they had exercised the Purchase Warrants for cash. Because of the cashless exercise, the holder received 2,201 shares. On September 15, 2022, we closed an underwritten public offering in which we issued and sold (i) 1,037,520 shares of the Company’s common stock, (ii) 12,171,628 pre-funded On October 17, 2022 and October 27, 2022, investors exercised 117,939 and 9,804 pre-funded On August 11, 2023 we closed an underwritten public offering in which we sold 875,949 shares of common stock, 15,126,226 pre-funded pre-funded pre-funded pre-funded 30-day additional common warrants. The underwriter partially exercised this option and purchased additional common warrants. These additional shares are included in the total sold on August 11, 2023. Net proceeds from the offering, including the impact of the underwriter’s partial exercise of its option and net of underwriting discounts, commissions, and other offering expenses, totaled $ On October 17, 2023 an investor exercised 25,000 pre-funded pre-funded As of March 31, 2024, there were 33,299,080 warrants outstanding. The activity related to warrants for the three and nine months ended March 31, 2024, is summarized, after giving effect to the Reverse Stock Split, as follows: Common Weighted- Outstanding at July 1, 2023 2,348,039 $ 1.92 Pre-funded 15,126,226 $ 0.0001 Common warrants issued August 11, 2023 16,002,175 $ 3.86 Outstanding at September 30, 2023 33,476,440 $ 1.98 Pre-funded 25,000 $ 0.0001 Series 2 warrants exercised 20,000 $ 1.93 Outstanding and exercisable at December 31, 2023 33,431,440 $ 1.98 Pre-funded 132,360 $ 0.001 Outstanding and exercisable at March 31, 2024 33,299,080 $ 1.99 Equity Incentive Plan Employee Share Option Plan In connection with its re-domiciliation re-domiciliation Re-domiciliation, Equity and Incentive Compensation Plan On December 9, 2020, the Company’s stockholders approved the Company’s 2020 Equity and Incentive Compensation Plan (the “2020 Plan”). The 2020 Plan provides for the grant of various equity awards. Currently, only stock options are outstanding under the 2020 Plan. Each option when exercised entitles the option holder to one share of the Company’s common stock. Options are exercisable on or before an expiry date, do not carry any voting or dividend rights, and are not transferable except on death of the option holder or in certain other limited circumstances. Employee stock options vest in increments of one-third Non-employee one-third On December 8, 2021, the Company’s stockholders approved an amendment to the 2020 Plan, which increased the number of shares of the Company’s common stock reserved under the 2020 Plan to 108,823 (as adjusted for the Reverse Stock Split). For the fiscal year ended June 30, 2023, our named executive officers (“NEO’s”) were each granted equity incentive awards under the 2020 Plan. On December 6, 2023, the Company’s stockholders approved an amendment to the 2020 Plan, which increased the number of shares of the Company’s common stock reserved under the 2020 Plan to 1,204,537. Equity Awards The activity related to equity awards, which are comprised of stock options during the nine months ended March 31, 2024 is summarized as follows: Stock Weighted- Weighted- Aggregate Outstanding at June 30, 2023 107,993 $ 31.88 8.96 years $ 11,888 Granted 1,076,538 $ 5.01 9.91 years — Expired (1,800 ) $ 470.37 — — Forfeited (353 ) $ 74.18 — — Outstanding at March 31, 2024 1,182,378 $ 6.73 9.76 years $ 353,286 Exercisable at March 31, 2024 36,984 $ 57.30 6.78 years $ 1,685 Share-Based Compensation Expense The classification of share-based compensation expense is summarized as follows: Three Months Nine Months March 31, (US$’000) 2024 2023 2024 2023 Research and development $ 45 $ 27 $ 112 $ 87 General and administrative 147 44 264 238 Total share-based compensation expense $ 192 $ 71 $ 376 $ 325 As of March 31, 2024, there was $4.7 million of unrecognized share-based compensation expense related to stock options issued under the Share Option Plan and the 2020 Plan, which is expected to be recognized over a weighted average period of 2.9 years. |