Exhibit 99.1 Equillium Reports on Fourth Quarter and Full Year 2023 Financial Results and Corporate and Clinical Highlights $40.9 million cash balance at the end of 2023 expected to provide cash runway into 2H 2025 Completed enrollment of Phase 2 clinical study of EQ101 in alopecia areata: topline data expected in Q2 2024 Presented positive data from Phase 1b EQUALISE study of itolizumab in lupus nephritis patients at American Society of Nephrology (ASN) & American College of Rheumatology (ACR) meetings Ono ...

Wall Street has been roaring higher, driven by a solid earnings season, a resilient economy and a technology surge. Both the S&P 500 and Dow Jones are at all-time highs, while the tech-heavy Nasdaq Composite Index is just below its record peak.The gains have been broad-based across various segments and many stocks have more than doubled this year. We have highlighted five stocks that have a Zacks Rank #1 (Strong Buy) or 2 (Buy), a Momentum Score of B or better and saw positive earnings estimate revisions fo ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 September 30, 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: 001-38692 EQUILLIUM, INC. (Exact name of registrant as specified in its charter) Delaware 82-1554746 (State or other jurisdicti ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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, 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: 001-38692 EQUILLIUM, INC. (Exact name of registrant as specified in its charter) Delaware 82-1554746 (State or other jurisdiction of ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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: 001-38692 EQUILLIUM, INC. (Exact name of registrant as specified in its charter) | Delaware | 82-1554746 | | --- | --- | | (State o ...

Corporate Presentation Forward-Looking Statements 2 | --- | --- | --- | --- | |-----------------------------------------------------------------------------|-------------------------------------|-------------------------|-----------------------------| | | | | | | Resetting Balance, | Novel | Assets | | | Restoring Health Leveraging a deep understanding of immunology | Multi-Cytokine Inhibitors | | Partnership for itolizumab | | to pioneer new therapies for severe autoimmune and inflammatory disorders | Mult ...

Financial Performance and Funding - The company has incurred significant losses since inception and expects to continue incurring losses for the foreseeable future, potentially never achieving profitability[21] - The company requires substantial additional funding to continue the development and commercialization of its product candidates, including EQ101, EQ102, and itolizumab (EQ001)[21] Product Development and Pipeline - EQ101 is currently in a Phase 2 study for alopecia areata, while EQ102 is in a Phase 1 study for celiac disease, and itolizumab (EQ001) is in a pivotal Phase 3 study for acute graft-versus-host disease[25][28] - The product pipeline includes first-in-class immunology assets targeting unmet medical needs across various therapeutic areas, including dermatology and oncology[24] - The company is focused on opportunistically expanding its pipeline through preclinical studies and potential acquisitions of high-value therapeutic programs[28] - The company aims to build a commercial infrastructure to potentially market its products independently or through collaborations if any product candidates receive approval[28] Licensing and Agreements - The company has licensed itolizumab from Biocon and is dependent on meeting certain diligence obligations and making significant milestone payments for regulatory approval and commercialization[21] - The company has entered into an Asset Purchase Agreement with Ono, granting Ono the exclusive right to acquire itolizumab (EQ001) for a one-time upfront payment of approximately $26.4 million[29] - If Ono exercises its option, the company will receive an additional one-time payment of approximately $37.2 million, along with potential milestone payments totaling up to $101.4 million[30] - Biocon has granted the company an exclusive license to develop and commercialize itolizumab (EQ001) in the United States, Canada, Australia, and New Zealand, with an exclusive supply agreement for clinical and commercial drug products[34] - The company is obligated to pay Biocon up to $30 million in regulatory milestone payments and up to $565 million in sales milestone payments upon achieving certain sales levels[35] Clinical Studies and Results - EQ101, a first-in-class tri-specific inhibitor, has shown clinical proof-of-concept in a Phase 1/2 study for cutaneous T cell lymphoma, achieving primary safety objectives and meaningful improvements in modified severity-weighted assessment tool scores[42] - EQ102, a selective inhibitor of IL-15 and IL-21, is being developed for gastrointestinal diseases, including celiac disease, with substantial translational work supporting its potential use[44] - The Phase 1 clinical study of itolizumab (EQ001) in 37 healthy subjects demonstrated a low incidence (2/24) of low titer anti-drug antibodies and no serious adverse events reported[67] - The Phase 2 clinical study of EQ101 for alopecia areata is ongoing, with approximately 30 adult subjects dosed IV once weekly for 24 weeks at 2 mg/kg, with initial data expected in the second half of 2023[76] - The ongoing Type B study is evaluating up to 20 newly diagnosed or refractory LN patients treated with itolizumab (EQ001) at a dose of 1.6 mg/kg SC Q2W for up to 24 weeks[109] Regulatory Designations and Approvals - The company has received FDA Fast Track and Orphan Drug Designations for its product candidates, indicating potential expedited development pathways[27] - Itolizumab (EQ001) has received Fast Track designation from the FDA for aGVHD treatment and Orphan Drug designations for both prevention and treatment[91] - Itolizumab (EQ001) has received Fast Track designation from the FDA for the treatment of lupus nephritis (LN) as of December 2019[108] - The company has received Orphan Drug designations for EQ101 from both the FDA and the European Medicines Agency for the treatment of cutaneous T cell lymphoma[51] Market and Competitive Landscape - The company faces competition from major pharmaceutical and biotechnology companies, as well as smaller firms, in the development and commercialization of its product candidates[131] - There are currently no FDA-approved therapies for celiac disease, and the only treatment is a strict gluten-free diet[135] - The standard of care for acute graft-versus-host disease (aGVHD) remains corticosteroids, with no FDA-approved first-line therapies currently available[136] - The incidence of acute graft-versus-host disease (aGVHD) was estimated at approximately 5,800 patients in 2020, with a projected increase to 7,000 patients by 2030[85] Regulatory Compliance and Legal Considerations - The company must comply with various federal and state healthcare laws, including the Anti-Kickback Statute and the False Claims Act, which impose significant penalties for non-compliance[175][177] - The company is subject to data privacy regulations under HIPAA and HITECH, which impose requirements on the handling of individually identifiable health information[180] - The company is subject to various federal and state laws regarding environmental protection, which may incur significant compliance costs[201] Employment and Company Status - As of December 31, 2022, the company employed 36 full-time employees focused on research and development, operations, finance, business development, or administration[207] - The company is classified as an "emerging growth company" and will maintain this status until the earlier of December 31, 2023, or achieving total annual gross revenue of at least $1.235 billion[210] Future Expectations and Challenges - The company faces significant uncertainty regarding the coverage and reimbursement status of its product candidates post-regulatory approval[187] - The company anticipates continued downward pressure on coverage and pricing for approved products due to healthcare reforms[197] - The Inflation Reduction Act of 2022 may adversely affect the company's ability to commercialize product candidates and could lower their perceived value[193] - The company may need to conduct expensive pharmacoeconomic studies to demonstrate the cost-effectiveness of its products[190]

equillium Corporate Presentation November 2022 Forward-Looking Statements This presentation contains forward-looking statements about Equillium, Inc. (the "Company"). In some cases, you can identify forward-looking statements by the words "will," "expect," "intend," "plan," "objective," "believe," "estimate," "potential," "continue" and "ongoing," or the negative of these terms, or other comparable terminology intended to identify statements about the future. These statements are based on Company management ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 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: 001-38692 | --- | --- | |------------------------------------------------------------------------------------------------------ ...

equillium Corporate Presentation August 2022 Forward-Looking Statements This presentation contains forward-looking statements about Equillium, Inc. (the "Company"). In some cases, you can identify forward-looking statements by the words "will," "expect," "intend," "plan," "objective," "believe," "estimate," "potential," "continue" and "ongoing," or the negative of these terms, or other comparable terminology intended to identify statements about the future. These statements are based on Company management's ...