| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| McNeill Jonathan | Chief Operating Officer and President. Exhibit 24 - Power of Attorney | C/O CRESCENT BIOPHARMA, INC., 300 FIFTH AVENUE, WALTHAM | /s/ Barbara Bispham, as attorney-in-fact for Jonathan McNeill | 2025-06-23 | 0001824673 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | CBIO | Ordinary Shares | 134K | Jun 13, 2025 | Direct | F1, F2, F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | CBIO | Stock Option (Right to Buy) | Jun 13, 2025 | Ordinary Shares | 403K | $6.16 | Direct | F4 |
| Id | Content |
|---|---|
| F1 | Effective as of June 13, 2025 (the "Effective Time"), (i) a wholly-owned subsidiary of GlycoMimetics, Inc. ("GlycoMimetics") merged with and into Crescent Biopharma, Inc. ("Pre-Merger Crescent") with Pre-Merger Crescent continuing as a wholly owned subsidiary of GlycoMimetics and the surviving corporation of the merger (the "First Merger"), (ii) immediately thereafter, Pre-Merger Crescent merged with and into a second wholly-owned subsidiary of GlycoMimetics ("Second Merger Sub"), with Second Merger Sub being the surviving entity of the merger under the name Crescent Biopharma Operating Company, LLC (the "Second Merger" and, together with the First Merger, the "Merger"). At the Effective Time, GlycoMimetics changed its name to "Crescent Biopharma, Inc." (hereinafter, the "Issuer"). |
| F2 | This Form gives effect to the Issuer's completion of a conversion from a corporation organized under the laws of the State of Delaware (the "Delaware Corporation") to an exempted company incorporated under the laws of the Cayman Islands (the "Cayman Company"), effective as of June 16, 2025. In connection therewith, (a) each outstanding option or right to acquire shares of common stock of the Delaware Corporation continued in existence in the form of and automatically became an option or right to acquire an equal number of ordinary shares of the Cayman Company under the same terms and conditions; and (b) each outstanding restricted stock unit ("RSU") representing the right to receive shares of common stock of the Delaware Corporation was automatically converted into one RSU representing the right to receive ordinary shares of the Cayman Company under the same terms and conditions. |
| F3 | Represents RSUs of the Issuer received by the Reporting Person in the Merger in exchange for the RSUs of Pre-Merger Crescent held by the Reporting Person prior to the Merger. These RSUs will vest as to 25% on March 17, 2026 and as to 6.25% at the end of each successive three-month period thereafter through March 17, 2029, subject to the Reporting Person's continued service to the Issuer on each such vesting date. Each RSU of the Issuer represents the right to receive one share of the Issuer's ordinary shares. |
| F4 | Represents options to purchase the Issuer's ordinary shares received by the Reporting Person in the Merger in exchange for options of Pre-Merger Crescent held by the Reporting Person prior to the Merger. This option will vest as to 25% on March 17, 2026 and in equal monthly installments thereafter through March 17, 2029, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |
Chief Operating Officer and President. Exhibit 24 - Power of Attorney