SCHEDULE 13G/A 0001021944 XXXXXXXX LIVE 2 Voting Common Stock, $0.0001 par value per share 12/31/2025 0001580560 Flywire Corporation 302492103 141 Tremont St #10 Boston MA 02111 Rule 13d-1(d) Temasek Holdings (Private) Limited U0 0 6173385 0 6173385 6173385 N 5.1 HC Fullerton Management Pte Ltd U0 0 6173385 0 6173385 6173385 N 5.1 HC Hotham Investments Pte. Ltd. U0 0 6173385 0 6173385 6173385 N 5.1 HC Ossa Investments Pte. Ltd. U0 0 6173385 0 6173385 6173385 N 5.1 CO Flywire Corporation 141 Tremont St #10, Boston, MA 02111 (i) Temasek Holdings (Private) Limited ("Temasek"); (ii) Fullerton Management Pte Ltd ("Fullerton"); (iii) Hotham Investments Pte. Ltd. ("Hotham"); and (iv) Ossa Investments Pte. Ltd. ("Ossa" and, together with Temasek, Fullerton and Hotham, the "Reporting Persons") Each of the Reporting Persons: 60B Orchard Road #06-18 The Atrium@Orchard Singapore 238891. Each of the Reporting Persons: Republic of Singapore Y As of January 28, 2026, Ossa directly owned in aggregate 6,173,385 shares of voting common stock. Ossa is a wholly-owned subsidiary of Hotham, which in turn is a wholly-owned subsidiary of Fullerton, which in turn is a wholly-owned subsidiary of Temasek. Temasek, Fullerton and Hotham, through the ownership described herein, may be deemed to beneficially own the shares of the Issuer's voting common stock directly owned by Ossa. As of January 28, 2026: Temasek, Fullerton, Hotham and Ossa: 5.1% The percentages above are based on 120,253,612 shares of the Issuer's voting common stock outstanding as of October 31, 2025, as set forth in the Issuer's quarterly report on Form 10-Q filed with the Securities and Exchange Commission on November 10, 2025. 0 6,173,385 0 6,173,385 Y Y Y Y Y Y Temasek Holdings (Private) Limited /s/ Jason Norman Lee 01/30/2026 Fullerton Management Pte Ltd /s/ Gregory Tan 01/30/2026 Hotham Investments Pte. Ltd. /s/ Lim Ming Pey 01/30/2026 Ossa Investments Pte. Ltd. /s/ Tan Yee Pin, Stanley 01/30/2026 Exhibit 99.1 - Joint Filing Agreement, dated as of February 14, 2022, by and among Temasek, Fullerton, Hotham and Ossa (incorporated by reference to Exhibit 99.1 to the Schedule 13G filed on February 14, 2022)