Ginkgo Bioworks Holdings, Inc.

21. Subsequent Events

On February 26, 2026, the Company entered into a definitive Stock Purchase Agreement (the “Stock Purchase Agreement”) to sell substantially all of the operations comprising its Biosecurity segment (the “Biosecurity Business”) to a newly formed entity (“Tower Biosecurity Holdings, Inc.”). Under the terms of the agreement, the Company will contribute the Biosecurity Business to Tower Biosecurity Holdings, Inc. in exchange for approximately 20% equity interest of the total issued and outstanding equity of Tower Biosecurity Holdings, Inc. as of closing. The transaction is expected to close in the first half of 2026, subject to customary closing conditions.

Upon closing, the Company expects to present the Biosecurity Business as discontinued operations in its consolidated financial statements and to recast prior period amounts to conform to this presentation. The transaction was approved by the Company's Board of Directors in February 2026, and, accordingly, the assets and liabilities of the Biosecurity Business are not reflected as held for sale as of December 31, 2025 and the accompanying consolidated financial statements do not reflect the effects of this transaction.