Gossamer Bio (GOSS) Proxy Filing summary

Executive summary

• Annual meeting scheduled for June 25, 2025, to be held virtually for shareholder participation.

• Proxy materials, including the Notice of Meeting and Annual Report, are available online, with options for paper or email copies upon request.

Voting matters and shareholder proposals

• Shareholders will vote on the election of three Class I directors: Thomas Daniel, Sandra Milligan, and Steven Nathan.

• Proposal to ratify Ernst & Young LLP as independent auditors for the fiscal year ending December 31, 2025.

• Advisory vote on executive compensation for named executive officers.

• Proposal to approve the amendment and restatement of the 2019 Incentive Award Plan.

Board of directors and corporate governance

• Board recommends voting FOR all four proposals on the agenda.