Eton Pharmaceuticals : Investor Day and Fourth Quarter 2024 Earnings Presentation (ab9253)

ETON

2025 INVESTOR DAY

March 18, 2025

Agenda

Today's Speakers

SEAN BRYNJELSEN

JAMES GRUBER

DAVID KREMPA

IPEK ERDOGAN-TRINKAUS

Chief Executive Officer

Chief Financial Officer

Chief Business Officer

Chief Commercial Officer

Reviewing Eton's Transformational Six Months

Our Vision

To build a leading ultra-raredisease company

with a relentless commitment to patients and innovative therapies.

Patients First

Ultra-Rare Focus

The Greatest Number of

New Therapies Achievable

Clearing the path for

Making the greatest

Rapidly growing our

better patient access and

impact where it matters

portfolio to bring more

therapy experience

the most - and too rare

innovative treatments

for big pharma

to patients

Transformational 6 Months

Expanded portfolio, delivered record revenue, strong commercial launch momentum

Acquired 2 High

Added 3 Attractive

Exceptional

Value Commercial

Pipeline Assets

Execution Across

Products

(Amglidia®,

All Functions

(Increlex®, Galzin®)

ET-700, ET-800)

Acquired

Reported record 3Q

Galzin

product revenue and

Closed

Galzin

commercial

Reported

reached GAAP

launch

Signed

profitability

Acquired

acquisition

Launched

Positive

record Q4

Increlex

of Increlex

new metabolic

product sales

ET-600 clinical

acquisition

Amglidia

sales force

study results

OCT 3

NOV 12

NOV 25

DEC 19

DEC 30

JAN 2

MAR 3

MAR 14

MAR 18

3 Pillar Growth Strategy

Eton was successfully built with a three-pillar strategy and is well positioned to sustain the momentum

Organic Growth of

Existing Products

Track Record

16 straight quarters of sequential revenue growth (driven by Alkindi Sprinkle and Carglumic Acid)

Outlook

Attractive long-term growth opportunities for Increlex, Galzin, and Alkindi Sprinkle

Internal Pipeline

Products

Track Record

Developed ET-400 internally

Outlook

Additional high-value programs in late-stage development (ET-600, ET-700, ET-800, Amglidia®, Zeneo®)

External Acquisitions

And Licensing

Track Record

Executed high-ROI acquisitions of Increlex, Galzin, Carglumic Acid, and Alkindi Sprinkle

Outlook

Well positioned to continue acquiring strategically and financially attractive products. Strong balance sheet with significant access to capital.

Eton's commercial strategy is designed to

effectively meet the distinct needs of ultra-rare patient populations

Concentrated prescriber bases | Small number of specialists within pediatric endocrinology and metabolics enables highly targeted, efficient sales force coverage and marketing efforts

Meaningful partnerships with patient advocacy groups | Through deep collaboration, Eton supports patient and caregiver communities to drive awareness, promote education, and enhance patient resources

Strategic collaboration with key thought leaders and professional societies | Advisory boards and joint initiatives to engage with healthcare professionals and societies leading therapeutic advancements

Eton Cares patient support program for all Rx products | $0 co-payfor eligible patients, quick-startand bridge programs, nurse hotline, monthly patient check-in,and exclusive distribution through high-touchspecialty pharmacy

Built one of the broadest ultra rare disease portfolios in the industry

1

CMC Development

Phase III/Pivotal Study

Increlex® - Severe Primary Insulin-Like Growth Factor

1 Deficiency

2

Alkindi Sprinkle® - Pediatric Adrenal Insufficiency

3

Galzin® - Wilson disease

4

Carglumic Acid - Hyperammonemia

5

PKU GoLike® - Phenylketonuria

6

Betaine Anhydrous - Homocystinuria

7

Nitisinone - Hereditary Tyrosinemia Type 1 (HT-1)

8

ET-400

- Pediatric Adrenal Insufficiency

9

ET-600

- Diabetes Insipidus

10

Amglidia® - Neonatal Diabetes

11

ET-700

- Wilson disease

12

ET-800

- Endocrinology

13 Zeneo® - Adrenal Crisis

PEDIATRIC ENDOCRINOLOGY

METABOLIC

NDA Submission

Commercial

Disclosing for

First Time

ADDED IN THE LAST 6 MONTHS

13

Products

7

Commercial

Products

6

Pipeline

Programs

Disclaimer

Eton Pharmaceuticals Inc. published this content on March 18, 2025, and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on March 19, 2025 at 06:04:03.623.