Financial Performance - As of September 30, 2023, total assets decreased to $133.194 million from $180.435 million as of December 31, 2022, representing a decline of approximately 26.2%[17] - Cash and cash equivalents decreased to $19.158 million from $56.958 million, a reduction of about 66.4%[17] - Total operating expenses for the three months ended September 30, 2023, were $19.363 million, compared to $18.860 million for the same period in 2022, reflecting an increase of 2.7%[19] - The net loss for the three months ended September 30, 2023, was $18.374 million, slightly higher than the net loss of $18.370 million for the same period in 2022[19] - The company reported a net loss per common share of $0.45 for the three months ended September 30, 2023, compared to $0.60 for the same period in 2022[19] - Total stockholders' equity decreased to $123.581 million as of September 30, 2023, down from $169.317 million as of December 31, 2022, a decline of approximately 27.0%[17] - The company reported a comprehensive loss of $18.310 million for the three months ended September 30, 2023, compared to a comprehensive loss of $18.433 million for the same period in 2022[19] - For the nine months ended September 30, 2023, the net loss was $54,322 thousand, compared to a net loss of $50,451 thousand for the same period in 2022, representing an increase in loss of approximately 3.4%[27] Cash Flow and Liquidity - Cash and cash equivalents, along with marketable securities, totaled $121.4 million as of September 30, 2023, which is expected to fund operating expenses for more than 12 months[30] - The net cash used in operating activities for the nine months ended September 30, 2023, was $48,620 thousand, an increase from $42,020 thousand in the same period of 2022[27] - The company reported net cash provided by investing activities of $10,749 thousand for the nine months ended September 30, 2023, compared to a net cash used of $81,524 thousand in the same period of 2022[27] - The company reported a net decrease in cash and cash equivalents of $37,800 thousand for the nine months ended September 30, 2023, compared to a decrease of $123,623 thousand in the same period of 2022[27] - The company expects existing cash and marketable securities to fund operations into Q1 2025, but anticipates significant expenses and operating losses as product candidates advance through clinical development[103][104] Research and Development - Research and development expenses increased to $13.288 million for the three months ended September 30, 2023, from $12.110 million in the same period of 2022, marking an increase of 9.7%[19] - The company plans to increase research and development expenses significantly as it continues to develop product candidates and conduct clinical trials[82] - Research and development expenses for Q3 2023 were $13.3 million, an increase of $1.2 million (9.7%) compared to $12.1 million in Q3 2022[89] - For the nine months ended September 30, 2023, research and development expenses totaled $37.6 million, a significant increase of $7.7 million (25.7%) from $29.9 million in the same period of 2022[94] Clinical Development - The company has two clinical stage programs: RLYB212 and RLYB116, targeting severe and rare diseases[29] - RLYB212, an anti-HPA-1a antibody, achieved proof-of-concept in a Phase 1b study, demonstrating a ≥ 90% reduction in mean platelet elimination half-life compared to placebo[59] - The company expects to initiate a Phase 2 dose confirmation study for RLYB212 in the second half of 2024, targeting pregnant women at higher risk of FNAIT[61] - RLYB116, a novel C5 inhibitor, is currently in a Phase 1 multiple ascending dose study, with initial data expected to be reported in Q4 2023[65] - Clinical data from the Phase 1 study of RLYB116 showed that doses of 100 mg and 300 mg resulted in over 99% reductions in free C5 concentrations[66] Capital Requirements and Future Funding - The company expects to raise substantial additional capital to fund the development and commercialization of its product candidates, if approved[30] - The company will require significant additional capital to fund operations and may raise funds through equity offerings, debt financings, and collaborations[139] - The company anticipates incurring substantial additional costs associated with regulatory filings and marketing approvals once product candidates complete development[107] Regulatory and Market Challenges - The regulatory approval process for product candidates is lengthy and unpredictable, with no guarantee of success[189] - The company has never obtained marketing approval for any product candidate, which could significantly harm its business and profitability[196] - The company may face challenges transitioning from a research and development focus to supporting commercial activities[144] - The company may face various regulatory actions, including fines or market withdrawals, if it fails to comply with regulatory requirements[215] Competition and Market Position - The company faces significant competition from biotechnology and pharmaceutical companies, which could adversely affect its operating results if it fails to compete effectively[203] - RLYB116 faces competition from established treatments such as Soliris and Ultomiris marketed by AstraZeneca for conditions like PNH and gMG[203] - The company believes RLYB212 could be a first-in-class antibody for the prevention of FNAIT, with no direct mechanistic-based clinical competition currently existing[203] Operational Risks - The ongoing COVID-19 pandemic may cause delays and disruptions to preclinical studies and clinical trials, potentially impacting the company's ability to obtain regulatory approvals[160] - The company has encountered limited disruptions to its manufacturing and supply chain due to COVID-19, but significant disruptions could materially impact its operations[162] - Patient enrollment for clinical trials is challenging, especially for rare diseases, which may lead to increased costs and delays in product development[179]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 _____________________________________ FORM 10-Q _____________________________________ (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 For the transition period from ______________ to ______________ Commission File Number: 001-40693 RALLYBIO CORPORATION (Exact Name of Registrant as Specified in its Charter) ____________________________________ ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-40693 RALLYBIO CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 85-10837 ...

Gelsen et d., Rapick Ind Compiete Clearanta: Of HPA-ico Nismatched Platelets In A Human Model Of Fetal Ara Nescratol Allanmure in Tromborgtoperio By A Nyaerimmune Plasmo De International Society on Thrombosis and Hemostasis 2021 Congress, July 17-21, 2021. Abstract #PB0969 Study Design Prospective, non-interventional, multinational natural history study conducted at ~ 20 sites in US/EU ~26-30 Weeks | --- | --- | |-------------------------|-------| | | | | ■ C5 is a proven target | | 20 21 23 ENPP1: Target T ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Delaware 85-1083789 (State or other jurisdiction of incorporation or organization) 234 Church Street, Suite 1020 New Haven, CT 06510 (Address of principal executive offices) (Zip Code) OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE T ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Delaware 85-1083789 (State or other jurisdiction of incorporation or organization) For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-40693 RALLYB ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-40693 (I.R.S. Employer Identification No.) Registrant's telephone number, including area code: (203) ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-40693 RALLYBIO CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 85-10837 ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 001-40693 RALLYBIO CORPORATION (Exact name of Registrant as specified in its Charter) Delaware 85-1083789 (State or other jurisdiction of ...

Rallybio | --- | --- | --- | --- | |--------------------|-------------------------------------------|-------|---------------------------------| | | | | M A R C H 2 0 2 2 | | | TAKING A | | | | | DEVASTATING DISEASE - AND DEVASTATING IT. | | | | We're going there. | | | Rallybio Corporate Presentation | Forward Looking Statements 2 Forward-Looking Statements–This presentation contains forward-looking statements that are based on management's beliefs and assumptions and on information currently available to m ...