0001832038 2021-01-01 2021-12-31 0001832038 2022-03-24 0001832038 2021-06-30 shares iso4217:USD false FY 0001832038 MA 10-K/A true 2021-12-31 --12-31 2021 false 001-40703 Adagio Therapeutics, Inc. DE 85-1403134 1601 Trapelo Road Suite 178 Waltham 02451 781 819-0080 Common Stock, $0.0001 par value per share ADGI NASDAQ No No Yes Yes Non-accelerated Filer true true false false 0 109675173 <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: &quot;Times New Roman&quot;; text-align: center;"><div style="font-weight:bold;display:inline;">DOCUMENTS INCORPORATED BY REFERENCE </div></div> <div style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">None. </div> PricewaterhouseCoopers LLP Boston, MA 238