March 18, 2026

Client

Example Biotech

[CLIENT COMPANY ADDRESS]

Jane Doe

aragen

Proposal for Example Biotech

Dear Example Biotech,

On behalf of Aragen, I am pleased to submit our comprehensive proposal request for Cell Line Development and manufacturing of AB-101 in CHO-GS. Our proposal has been carefully aligned to your technical and commercial requirements and currently covers 1 mapped work packages.

We have mapped our full proposal and timeline to correspond to your requested work packages, milestones, and deliverables. Our end-to-end workflow provides transparent, milestone-based pricing, detailed Gantt timelines, and coordinated partner activities where outsourced scope is required.

Reference template: Gene-to-GMP mAb in CHO-GS.

Proposal strengths:

  • A fully integrated solution across research, development, and manufacturing tailored for mAb programs with 1 planned stages.
  • A robust program management framework with milestone-based governance and schedule visibility through a weekly execution grid.
  • A clear approach to intellectual property, data ownership, and operational transparency for stage-gated development.
  • Transparent cost structure, including staged pricing and pass-through estimates for external services and materials.
  • Integrated vendor oversight for optional outsourced fill-finish while maintaining the primary Aragen program cadence.

Proposal Snapshot

Project code: CD-XXXXX-XXX; PS-XXXXX-XXX; GMP-XXXXX-XXX***
Execution mode: Rules-based
Activated modules: 0
Commercial value: $0
Page 1Confidential | March 18, 2026

Proposal for Example Biotech

Cell Line Development of AB-101 in CHO-GS and cGMP manufacturing

Aragen Project Code: CD-XXXXX-XXX; PS-XXXXX-XXX; GMP-XXXXX-XXX***

March 18, 2026

aragen

Key Notes and Assumptions

  1. Aragen would execute cell line development and integrated downstream activities for AB-101 in CHO-GS.
  2. The current commercial and timeline view assumes a 50 L stage-gated batch strategy with aligned analytical and process-development handoffs.
  3. Material costs and outsourced activities remain non-binding until final vendor scope and the release/stability panel are confirmed.
  4. Where Aragen outsources the DP fill-finish, the packaged product is assumed to return for stability handling and coordinated release support.
Page 2Confidential | March 18, 2026

Pricing summary:

Service, material, and outsource line items are aligned to the activated work packages.

aragen
TaskService FeeMaterial Cost (non-binding estimate)Outsource Fee (non-binding estimate)
Grand total$0$0$0
Page 3Confidential | March 18, 2026

Timeline: (please see Excel for higher resolution)

This preview mirrors the proposal’s weekly grid and will expand further in the exported document.

aragen
WeeksTask123456789101112
Page 4Confidential | March 18, 2026

Work plan for Stable CHO Cell Line Development

aragen

Aragen will host a project kick off meeting to confirm goals, project-specific requirements, timeline, communication protocol, and procedures for change. A process review for addressable events that may affect timeline or budget will be discussed and documented.

At agreed upon intervals during the conduct of the work, Aragen will communicate progress and updates through recurring meetings and written draft reports.

Gene Synthesis
Transfection
Screening of stable pool
Single Cell Printing / Imaging
Top clone evaluation in SF
Stability study / Bioreactor evaluation
Safety freeze bank
RCB banking and RCB Testing

Flow chart of main steps of cell line development project

Page 5Confidential | March 18, 2026

S.1 Work Plan for CLD:

aragen
Page 6Confidential | March 18, 2026

IV. Others

aragen

All applicable taxes, including withholding taxes, will be borne by Example Biotech. Taxes are not included in the service or material cost estimates and will be invoiced as incurred.

There are no royalties, milestone payments, or other fees due Aragen other than the fee outlined in this proposal. Payments, once made, are non-refundable unless otherwise stated in the final agreement.

Aragen will use its reasonable best efforts to achieve the technical and timing goals described in the proposal, however achievement of those goals may not be within Aragen’s sole control and cannot be guaranteed.

Documentation generated as part of the scope will be provided in Aragen’s standard electronic formats unless otherwise agreed in writing.

For Example Biotech:

Signature

Name

Title

Date

For Aragen Bioscience, Inc.:

Signature

Name

Title

Date

Page 7Confidential | March 18, 2026