Autolus Therapeutics : Presentation - (260409 autl corporate presentation april 2026)

AUTL

Published on 04/13/2026 at 09:00 am EDT

Developing Next Generation Programmed T Cell Therapies

April 2026

For Investor communication only. Not for use in product promotion.

Autolus.com

Autolus is positioned for value creation

Obe-cel product franchise supports multiple growth opportunities

Initial Indication: Adult r/r B-ALL

Strong Execution in First Year of Launch

Pipeline expansion opportunities

grow future commercial potential in new indications

$74.3 million

Achieved CAR T market leadership in r/r B-ALL

Significant opportunity to grow overall CAR T market in adult r/r B-ALL

Physician interest to pursue investigator sponsored trials in 1stline ALL

Opportunity to establish a pipeline in a product with recent data presentations supporting potentially pivotal Phase 2 clinical trials with obe-cel in

lupus nephritis and pediatric ALL

Commercial and pipeline opportunities supported by proven manufacturing and product delivery capabilities and established authorized treatment centers

Autolus is a leader in CAR T manufacturing & product delivery

Executing on manufacturing and product delivery in the first year of launch:

3

Manufacturing Life Cycle Strategy: Opportunities for Innovation to Improve Margins

1

2

Optimizing the current manufacturing process and operating model

Enhancing automation opportunities on our existing process

Developing next-generation manufacturing platform with a step change in the cost and capacity profile

AUTOLUS' FIRST APPROVED PRODUCT

AUCATZYL®

A potentially best-in-class, standalone CD19 CAR T cell therapy

AUCATZYL® now approved in US, UK and EU

AUCATZYL indicated for the treatment of adults with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (B-ALL)

Highly active, fast off-rate CD19 CAR T therapy with a well managed safety profile1- approved in US, UK, EU

First and currently only approved CAR T therapy with customized, tumor-burden guided dosing - no FDA REMS obligation

Established infrastructure for manufacturing and commercialization

Commercial presence in more than 70 US centers

NICE determined AUCATZYL to be cost effective, UK* launched in January 2026

Approval in EU† in 2025; pricing and reimbursement evaluation ongoing on a country-by-country basis

1Roddie C, et al "Obecabtagene autoleucel in B-cell acute lymphoblastic leukemia" N Engl J Med 2024; DOI: 10.1056/NEJMoa2406526; *Conditional marketing authorization, † European Commission (EC) 6

conditional approval

Strong first year of U.S. AUCATZYL® launch

2026 Expectations

AUCATZYL Net Product Revenue

$120-$135 million

Shift to positive gross margin in 2026 based on increasing volumes and improved manufacturing plant operation

Treatment center activation (67 as of 12/31/25)

Positive physician and patient experience

Reliable manufacture and delivery of product

AUCATZYL geographic growth opportunities in ALL

UK Launch Q1 2026

Expansion

Conditional marketing authorization in the UK received April 2025

Successful NICE pricing and reimbursement process Nov 2025

AUCATZYL available in routine commissioning in NHS Dec 2025

EU market access -pending

European Commission (EC) conditional approval received July 2025

Ongoing country-by-country evaluation of pricing and reimbursement decisions to assess feasibility of market entry; no anticipated EU sales in 2026

Exploration of alternate market access mechanisms in 2026

We believe AUCATZYL® has a unique mechanism of action

Clinical data show increased activity and reduced toxicity

Fast off-rate

CAT19 fast off-rate binder²

CD8-derived hinge region/ transmembrane domain2

4-1BB co-stimulatory domain1,4 Shown to enhance CAR T-cell expansion and reduce exhaustion compared with CD28 CARs in preclinical studies

107

106

105

104

FMC63

HD37

B4

4G7

Other CD19 Binders

Obe-cel Binder

CAT

On-Rate: Ka[M-1S-1]

10-4 10-3 10-2 10-1

Potential for improved potency, reduced toxicity

Off Rate: Kd[S-1]

Shorter half-life of interaction compared to binders used in other approved products

AUCATZYL® = 9.8 seconds

Kymriah® = 21 minutes

CD3Ɀ activation domain¹

Avoided over-activation

of CAR T cells

→ Reduced toxicities

Increased CAR T peak expansion → Improved peak activity and

persistence

Avoided exhaustion

of CAR T-cells

→ Improved engraftment Improved persistence

References:1. AUCATZYL. Prescribing Information. Autolus, Inc. 2024. 2. Ghorashian S, Kramer AM, Onuoha S, et al. Enhanced CAR T cell expansion and prolonged persistence in pediatric patients with ALL treated with a low-affinity CD19 CAR. Nat Med. 2019;25:1408-

AUCATZYL was approved based on results from the FELIX trial

FELIX Phase 1b/2

Cohort IA

≥5% BM blast

Cohort IB

<5% BM blast MRD+

Cohort IIA

≥5% BM blast

Open-label, multinational, single-arm Phase 1b/2 trial in adult patients with R/R B-ALL1-2; largest CAR T cell therapy trial in R/R B-ALL to date (N=153 enrolled)

Conducted during COVID-19 pandemic with highly immune compromised patients

Cohort IIB

<5% BM blast MRD+

Cohort IIC Isolated EMD at screening

High ORR, encouraging EFS/OS and favorable tolerability with low levels of high-grade CRS and ICANS

Patients (N)

Ph1b/2 pooled1

Enrolled

153

Infused

127

Timely and reliable clinical product supply and logistics despite COVID-19 pandemic restrictions

Across all Phase 1b/2 cohorts, 40% of responders in ongoing remission without subsequent stem cell transplant/other therapy1

Survival outcomes suggesting potential of long-term plateau1

FELIX trial published in New England Journal of Medicine1

Favourable response rate and tolerability, despite challenging patient population

High overall response rate with deep molecular responses

Durable responses, particularly in patients with a low-to-intermediate bone marrow burden

Excellent tolerability profile

Very low rates of high-grade immunotoxicities

No high-grade events in low disease burden patients

Response by disease status at lymphodepletion

Overall Remission Rate (CR/CRi)

All patients (n=127)

77%

Morphological disease (n=91)

75%

Measurable residual disease (n=29)

96%

Isolated extramedullary disease (n=7)

71%

Safety by disease burden at lymphodepletion

Grade ≥3 CRS

Grade ≥3 ICANS

All patients (n=127)

2%

7%

>75% Blasts (n=40)

2%

12%

5-75% Blasts (n=51)

4%

8%

<5% Blasts (n=36)

0%

0%

Data continue to show long term remissions in r/r adult B-ALL

At 24 months, overall survival probability was 46.0%

Duration of response: median 42.6 months at last data cut

More than half of patients still in remission at 24 months

Expanding the

obe-cel opportunity

Deep value program with potentially broad applicability

Pipeline supports growth with multiple development opportunities

Product

Indication

Target

Preclinical

Phase 1

Phase 2/Pivotal

Approved

Status

AUCATZYL®

(obe-cel)

Adult ALL

CD19

FDA, MHRA^& EC

approved†

obe-cel

Pediatric ALL

CD19

Currently enrolling

obe-cel

Lupus Nephritis

CD19

Currently enrolling

obe-cel

Progressive Multiple Sclerosis CD19

Currently enrolling

Product

Indication

Target

Preclinical

Phase 1

Status

AUTO8*

Multiple Myeloma

CD19 & BCMA

Currently enrolling

AUTO8*

Light Chain Amyloidosis

CD19 & BCMA

Currently enrolling

AUTO1/22*

Pediatric ALL

CD19 & CD22

Currently enrolling

15

^Conditional marketing authorization; † European Commission (EC) conditional approval; *UCL Collaboration Oncology Autoimmune / B-cell mediated

Growing the obe-cel franchise commercial opportunity

Robust clinical database and demonstrated commercial capabilities position Autolus for efficient path in new indications

Significant Market Opportunity

Graphic is illustrative, not to scale

Adult r/r B-ALL

Approved

Pediatric r/r B-ALL

Phase 2

Refractory Lupus Nephritis

Phase 2

Progressive MS

Phase 1

Hem Oncology Autoimmune

1. Based on National Cancer Institue SEER estimates and internal analysis; 2. Clarivate/DRG Epidemiology, Arthritis Rheumatol. 2023 Apr;75(4):567-573, Arthritis & Rheumatology. 2017;69(10):2006-2017; 3. GlobalData MS Market Forecast 2020-2030 April 2023; 16

Pediatric r/r B-ALL development strategy

CATULUS trial is currently enrolling; data expected at end of 2027

Regenerative Medicine Advanced Therapy (RMAT) designation supports development pathway

Development Rationale: High Unmet Medical Need

Obe-cel aims to include all

patients post-frontline therapy, including first line high-risk relapsed patients

Kymriah approved for

refractory and 2ndrelapse patients - excluding first line high-risk relapsed patients

Data reported at ASH

2025 annual meeting

ORR of 95%, CRR of 91%

Low rates of high-grade

CRS and ICANS

Collaboration with

Children's Oncology Group (COG)

Ages 0 - 18 and a minimum weight of 6 kg

Single weight-based infusion of 1 million cells per kg

International study (US,

UK, SP)

30 patients, SAT

CATULUS Phase 2

CATULUS Phase 1

Complete

CATULUS Phase 1 data support progressing into Phase 2

Safety profile of obe-cel in pediatric patients consistent with that previously reported in adults

*One patient experienced both Grade 3 CRS and Grade 3 ICANS.

‡Time to onset (days) = [(Date of start of Any grade/Grade≥3 CRS/ICANS − Date of first obe-cel infusion) +1].

B-ALL, B-cell acute lymphoblastic leukemia; CRS, cytokine release syndrome; ICANS, immune effector cell-associated neurotoxicity syndrome; IVIG, intravenous immunoglobulin

Ghorashian et. al. ASH 2025 Annual Meeting

CATULUS data demonstrate promising initial efficacy in pediatric patients

At median follow-up of 8.8 months in pediatric r/r B-ALL patients: ORR was 95.5%; CR was achieved in 90.9%

Swimmer plot showing disease assessments in the B-ALL cohort

MOA and commercial capabilities are key differentiators in AID

Obe-cel is the only CD19 CAR approved in other indications that is now being tested for autoimmune disease

Autolus Potential Advantage

Favorable tolerability to drive acceptability in non-oncology indications

Supports differentiated approach and potential for obe-cel in autoimmune disease areas

Deep cut into the CD19+ B cells and plasma blasts

Robust, economical and scalable manufacturing and established commercial infrastructure

Potential for accelerated clinical program

FDA-approved CAR-T therapy, with existing safety database, now in development for autoimmune indications

oduct

Disclaimer

Autolus Therapeutics plc published this content on April 13, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 13, 2026 at 12:59 UTC.