Expres2ion Biotech Holding Ab · OMXSTO:EXPRS2

Expres2ion Biotech Holding Ab — Q1 2025 Earnings Presentation

21 slides from Expres2ion Biotech Holding Ab's earnings presentation, May 15, 2025

  1. Slide 1: Interim Report

    Interim Report Innovati vaccines healthiet world

  2. Slide 2: Agenda

    expreSeion BIOTECH Agenda * Strategic and Financial Review ES2B-C001: Breast Cancer Program Infectious Disease Programs Update * Q&A

  3. Slide 3: Strategic and Financial

    BIOTECH Strategic and Financial

  4. Slide 4: Strategic Focus

    Strategic Focus Key strategic areas for 2025 02 Actively drive and intensify collaborative initiatives in the development of vaccines 01 Advancing our proprietary pipeline University of Oxford — Malaria VICI Disease Consortium — Niexela} ES2B-C001 University of Copenhagen — Influenza (Mucosal delive

  5. Slide 5: Development updates since Q4

    expreSeion BIOTECH Strategic Focus Development updates since Q4 R&D Leadership Transition + Dr. Max Segaard promoted to CSO and Dr. Farshad Guirakhoo becomes Senior ES2B-CO001 Protoco! Amendment [May ‘25. AdaptVac mRNA Platform May '25 conjugates (ADCs) and expand study si Modular mRNA platform boos

  6. Slide 6: Net sales and other operating income

    Net sales Other operating income 1Q23 3Q23 1Q24 3Q24 1Q25 1Q23 3Q23 1Q24 3Q24 1Q25

  7. Slide 7: Operating expenses

    expreSeion O t . t BIOTECH SEK ‘000s Operating expense R&D costs (external) Personnel costs! ie} ie} ie} —— -10.000 -10.000 -10.000 ¥0,4% -20.000 -20.000 -20.000 -30.000 -30.000 -30.000 Volatile & dependent Reduced due to cost savings; upon pipeline activities sensitive to FX and inflation -40.000 -

  8. Slide 8: Profit / loss for the period

    expreSeion BIOTECH Profit / loss for the period SEK ‘000s 1Q profit / loss 10) -3.000 -6.000 -9.000 -12.000 _ -11.440 -12.853 -1% -15.000 2024 2025

  9. Slide 9: Cash development in 2025

    expreSeion BIOTECH Cash development in 2025 SEK millions 90,0 815 80,0 70,0 58,0 60,0 -20,3 a -3,2 50,0 40,0 30,0 20,0 10,0 0,0 December 2024 Operations FX March 2025

  10. Slide 10: 1Q23 2Q23 3Q23 4Q23 1Q24 2Q24 3Q24 4Q24 1Q25

    88 82 77 76 72 69 60 58 58 1Q23 2Q23 3Q23 4Q23 1Q24 2Q24 3Q24 4Q24 1Q25

  11. Slide 11: ES2B-C001 Update

  12. Slide 12: Phase I Design

    expreSeion BIOTECH Phase | Design Open-label trial with ES2B-CO001 alone and combined with adjuvant * One site: Medical University of Vienna [currently under expansion] * Inclusion criteria: HER2-positive mBC patients, post 2nd line of treatment, ‘) zi! 7 i functioning immune system = = = = * Dose-e

  13. Slide 13: Recruitment

    expreScion BIOTECH Recruitment Steps taken to accelerate patient enrolment Protocol Enables combination with ADCs amendment filed Allows expansion of clinical trial sites to boost enrolment Targets Q3 2025 approval Vienna recruitment Agreements signed with five oncology clinics network Direct patien

  14. Slide 14: Expected Timeline

    Expected Timeline Schedule below assumes program moves directly to randomized POC Phase Il study. If a smaller Phase Il is chosen, initial costs will be lower but launch date later 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 Phase | in Patients with Breast Cancer Phase II in Patients with Brea

  15. Slide 15: 5

    5

  16. Slide 16: University of Oxford malaria vaccine candidates

    University of Oxford malaria vaccine candidates expreSeion BIOTECH Vaccines in trial Trial abbreviation Phase Sites Trial status Estimated completion Pfs48/45 in Matrix-M VAC-085 | Oxford, UK Concluded March 2025, RHS.1 in BIO-002 la Sheffield, UK Fully recruited Q4.2025 Matrix-M VAC-089 la Oxford,

  17. Slide 17: Update on other programs

    Update on other programs Largely grant-sponsored and consortium driven Mucosal influenza vaccine with University of Copenhagen + Antigen production in S2 cell lines and glyco-modified cell lines + Initiated establishment of a Xylose cell line to support production of highly immunogenic antigens ea.

  18. Slide 18: We Are a Platform-Based Vaccine Company

    expreScion BIOTECH We Are a Platform-Based Vaccine Company We develop therapeutic vaccines (immunotherapy) against cancer as well as prophylactic vaccines against major infectious diseases Target Pre-clinical DISEASE Project/Target ID Identification Pharmacology _cGMP / Tox Phase Il Collaboration Pa

  19. Slide 19: Looking forward

    expreScion BIOTECH Looking forward Key value-driving milestones expected in 2025 and beyond NA Clinical & Pipeline Data ES2B-CO01: Recruitment — First patient first visit ES2B-CO0I: Safety/tolerability readout - Phase | dose escalation data incl. MTD ES2B-CO001: Immunogenicity & early efficacy signa

  20. Slide 20: Q&A

  21. Slide 21: Disclaimer

    expreScion BIOTECH Disclaimer This presentation does not constitute or form part of any offer or invitation to purchase or subscribe for, or any offer to underwrite or otherwise acquire, any shares or any other securities in ExpreS2ion Biotech Holding AB (the "Company"). Neither shall the presentati

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