# EDGAR Filing Document

**Accession Number:** 0001253689
**File Stem:** 9999999995-26-000704
**Filing Date:** 2026-3
**Character Count:** 1390
**Document Hash:** 34ace5aa5500d644fd5aa798910bc5d9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-000704.hdr.sgml**: 20260304

**ACCESSION NUMBER**: 9999999995-26-000704

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260303

**DATE AS OF CHANGE**: 20260304

**EFFECTIVENESS DATE**: 20260303

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CRESCENT BIOPHARMA, INC.
- **CENTRAL INDEX KEY:** 0001253689
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-292600
- **FILM NUMBER:** 26718703

**BUSINESS ADDRESS:**
- **STREET 1:** 300 FIFTH AVENUE
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451
- **BUSINESS PHONE:** 617-430-5595

**MAIL ADDRESS:**
- **STREET 1:** 300 FIFTH AVENUE
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GLYCOMIMETICS INC
- **DATE OF NAME CHANGE:** 20030711

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** March 3, 2026

**Accession Number:** 0001628280-26-013540

**Form Type:** POS AM

---

**CIK:** 0001253689

**Company Name:** CRESCENT BIOPHARMA, INC.

**File Number:** 333-292600