# Crescent Biopharma, Inc. (CBIO) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/cbio

> 10 non-derivative transactions: 1 purchase ($12.4M), 9 sales ($286K). CIK 1253689.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-18 | McNeill Jonathan | Officer | S | 3839.0 | 16.71 | 134588.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062700/0001628280-26-062700-index.htm |
| 2026-09-18 | Brumm Joshua T | Director, Officer | S | 7837.0 | 16.71 | 271765.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062701/0001628280-26-062701-index.htm |
| 2026-09-16 | McNeill Jonathan | Officer | S | 731.0 | 17.9 | 138427.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062700/0001628280-26-062700-index.htm |
| 2026-09-16 | Brumm Joshua T | Director, Officer | S | 1610.0 | 17.9 | 279602.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062701/0001628280-26-062701-index.htm |
| 2026-09-16 | Bispham Barbara Harlin | Officer | S | 620.0 | 17.9 | 18710.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062703/0001628280-26-062703-index.htm |
| 2026-09-16 | Scalzo Richard William | Officer | S | 568.0 | 17.9 | 19730.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062705/0001628280-26-062705-index.htm |
| 2026-09-16 | Im Ellie Eunkyung | Officer | S | 623.0 | 17.9 | 21446.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062706/0001628280-26-062706-index.htm |
| 2026-09-16 | Pinkas Jan | Officer | S | 658.0 | 17.9 | 21581.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062707/0001628280-26-062707-index.htm |
| 2026-09-16 | Lynch Ryan | Officer | S | 240.0 | 17.9 | 13631.0 | https://www.sec.gov/Archives/edgar/data/1253689/000162828026062709/0001628280-26-062709-index.htm |
| 2026-07-16 | Fairmount Healthcare Fund II L.P. / Kiselak Tomas / Fairmount Funds Management LLC / Harwin Peter Evan | Director, TenPercentOwner | P | 853450.0 | 14.5 | 3601316.0 | https://www.sec.gov/Archives/edgar/data/1253689/000110465926085113/0001104659-26-085113-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

---
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.
API: https://sec-api.dev/docs · ChatGPT app: https://chatgpt.com/plugins/plugin_asdk_app_6ae0ef2436ac8191941dae8a4d732669 · Free key: https://sec-api.dev/sign-up