Instil Bio, Inc. · NASDAQ:TIL

Instil Bio — Investor Presentation (August 2024)

15 slides from Instil Bio's investor presentation, Aug 15, 2024

  1. Slide 1: SYN-2510 Program Overview August 2024

    SYN-2510 Program Overview August 2024 Nasdaq: TIL │ www.instilbio.com

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements 2 This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “anticipates,” “believes,” “expects,” "expected,” “exploring,” “future,” “intends,” “may,” “plans,” “potential,” “projects,” an

  3. Slide 3: Potential best-in-class PD-L1xVEGF bispecific in multiple solid tumor indications

    Potential best-in-class PD-L1xVEGF bispecific in multiple solid tumor indications 3 Phase 1 RightsIndication TNBC: triple-negative breast cancer; HCC: hepatocellular carcinoma; RCC: renal cell carcinoma; HR+ BC: hormone receptor positive breast cancer; NSCLC: non-small cell lung cancer IIT: investig

  4. Slide 4: Key features of SYN-2510, bispecific PD-L1xVEGF antibody

    Key features of SYN-2510, bispecific PD-L1xVEGF antibody 4 Differentiated design • VEGF trap • ADCC-enhanced Collaboration with ImmuneOnco (HKEX:1541) • In China, opportunity to leverage proof-of- concept data generation and accelerate clinical development Combination of validated oncology mechanism

  5. Slide 5: Key Competitor Landscape

    5 Key Competitor Landscape Anti-PD-L1 VHH Silenced Fc (LALA) Anti-VEGF-A Anti-VEGF-A Anti-PD-1 Anti-PD-L1 VEGF Trap ADCC- enhanced SYN-2510 BNT327 (Biotheus / BioNTech) Ivonescimab (Akeso / Summit) VEGF binding VEGF-A, VEGF-B, PLGF VEGF-A VEGF-A PD-1 or PD-L1 PD-L1 PD-L1 PD-1 ADCC Enhanced ADCC None

  6. Slide 6: PD-1xVEGF bispecific ivonescimab has demonstrated superior outcomes when added to standard of care

    PD-1xVEGF bispecific ivonescimab has demonstrated superior outcomes when added to standard of care 6 • Ivonescimab (PD-1xVEGF bispecific) + chemo outperforms chemo alone in 2L EGFRm+ NSCLC • Setting where Keytruda® failed* • Approved in 2L EGFRm NSCLC in China Source: Summit Therapeutics ASCO 2024 P

  7. Slide 7: PD-1xVEGF bispecific ivonescimab has demonstrated superiority vs Keytruda

    PD-1xVEGF bispecific ivonescimab has demonstrated superiority vs Keytruda® 7 • Ivonescimab (PD-1xVEGF bispecific) monotherapy outperforms Keytruda® monotherapy in 1L NSCLC • First randomized phase 3 trial reported of a regimen outperforming standard-of- care Keytruda® Source: Summit Therapeutics pre

  8. Slide 8: PD-L1xVEGF bispecific BNT327 has demonstrated compelling evidence of activity in multiple solid tumors

    PD-L1xVEGF bispecific BNT327 has demonstrated compelling evidence of activity in multiple solid tumors 8 • BNT327 has demonstrated high ORR % and deep responses in patients with NSCLC, small cell lung cancer (SCLC) and triple- negative breast cancer (TNBC) Source: BioNTech Q2 2024 earnings presentat

  9. Slide 9: SYN-2510: potential best-in-class PD-L1xVEGF bispecific

    SYN-2510: potential best-in-class PD-L1xVEGF bispecific 9 VEGF receptor trap binds multiple VEGF receptor ligands beyond VEGF-A for broader anti- angiogenic activity ADCC-enhanced antibody designed to induce direct killing of immune- suppressive PD-L1+ tumor cells

  10. Slide 10: SYN-2510 binds multiple VEGF receptor ligands

    SYN-2510 binds multiple VEGF receptor ligands 10 VEGF receptor trap binds multiple VEGF receptor ligands beyond VEGF-A for broader anti- angiogenic activity Avastin® SYN-2510 0.00010.001 0.01 0.1 1 10 100 1000 0 1 2 3 4 5 Concentration (nM) O D 4 5 0 VEGF-A VEGF-B VEGF-C VEGF-D PIGF 0.00010.001 0.01

  11. Slide 11: SYN-2510 has enhanced ADCC activity

    SYN-2510 has enhanced ADCC activity 11 ADCC-enhanced antibody designed to induce direct killing of immune- suppressive PD-L1+ tumor cells SYN-2510 ADCC SYN-2510 SYN-25 Atezolizumab Avastin Source: ImmuneOnco internal data on file

  12. Slide 12: SYN-2510 achieved multiple responses in patients with prior PD-1 inhibitor during dose escalation

    SYN-2510 achieved multiple responses in patients with prior PD-1 inhibitor during dose escalation 12 Thymus adenosqumous carcinomaSquamous NSCLC Squamous NSCLC Thymus adenosquamous carcinoma SYN-2510 completed dose escalation up to 20 mg/kg Q2W with a manageable safety profile and no observed dose-l

  13. Slide 13: ImmuneOnco collaboration provides opportunity to accelerate global clinical development of SYN-2510

    ImmuneOnco collaboration provides opportunity to accelerate global clinical development of SYN-2510 • Collaboration with ImmuneOnco (HKEX:1541), a Hong Kong-listed biotech developing SYN-2510/IMM2510 in China • Potential opportunities to utilize ImmuneOnco’s clinical dataset: ▪ Proof-of-concept in t

  14. Slide 14: Recent (Q2'24 Earnings PR)

    Recent Corporate Update (Q2’24 Earnings PR) 14

  15. Slide 15: Thank you

    Thank you Investor Relations (972) 499-3350 investorrelations@instilbio.com

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