Crescent Biopharma ($CBIO) Insider Trading & Smart Money Activity
Crescent Biopharma, Inc. ($CBIO) has 16 insider trades on file. In the last 12 months on the open market, no insider bought and 11 insiders sold ($1.51M), net -$1.51M.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 11
- Net insider $ (12 mo)
- -$1.51M
- Congress trades (12 mo)
- 0
- 13F moves on file
- 0
- Analyst ratings on file
- 0
CBIO insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 0 | 7 · $1.23M | 0 / 0 | 0 / 0 |
| Q3 2026 | 0 | 9 · $285.50K | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All CBIO insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | McNeill JonathanPresident and COO | Sell (Open-market sale) 10b5-1 | 3.84K sh | $64.15K | — | ||||||
| Insider | Brumm Joshua TChief Executive Officer | Sell (Open-market sale) 10b5-1 | 7.84K sh | $130.96K | — | ||||||
| Insider | Scalzo Richard WilliamChief Financial Officer | Sell (Open-market sale) 10b5-1 | 568 sh | $10.17K | — | ||||||
| Insider | Pinkas JanChief Scientific Officer | Sell (Open-market sale) 10b5-1 | 658 sh | $11.78K | — | ||||||
| Insider | McNeill JonathanPresident and COO | Sell (Open-market sale) 10b5-1 | 731 sh | $13.08K | — | ||||||
| Insider | Lynch RyanTreasurer, Senior Vice President of Finance and Chief Accounting Officer. | Sell (Open-market sale) 10b5-1 | 240 sh | $4.30K | — | ||||||
| Insider | Im Ellie EunkyungChief Medical Officer | Sell (Open-market sale) 10b5-1 | 623 sh | $11.15K | — | ||||||
| Insider | Brumm Joshua TChief Executive Officer | Sell (Open-market sale) 10b5-1 | 1.61K sh | $28.82K | — | ||||||
| Insider | Bispham Barbara HarlinGeneral Counsel and Corporate Secretary. | Sell (Open-market sale) 10b5-1 | 620 sh | $11.10K | — | ||||||
| Insider | Scalzo Richard WilliamChief Financial Officer | Sell (Open-market sale) 10b5-1 | 1.11K sh | $20K | — | ||||||
| Insider | Jan PinkasChief Scientific Officer | Sell (Open-market sale) 10b5-1 | 1.29K sh | $23.17K | — | ||||||
| Insider | Jonathan McneillPresident and COO | Sell (Open-market sale) 10b5-1 | 20.55K sh | $369.68K | — | ||||||
| Insider | Ryan LynchTreasurer, Senior Vice President of Finance and Chief Accounting Officer. | Sell (Open-market sale) 10b5-1 | 465 sh | $8.37K | — | ||||||
| Insider | Im Ellie EunkyungChief Medical Officer | Sell (Open-market sale) 10b5-1 | 1.22K sh | $21.93K | — | ||||||
| Insider | Joshua BrummChief Executive Officer | Sell (Open-market sale) 10b5-1 | 42.30K sh | $761.07K | — | ||||||
| Insider | Bispham Barbara HarlinGeneral Counsel and Corporate Secretary. | Sell (Open-market sale) 10b5-1 | 1.22K sh | $21.91K | — |
1W / 1M / 6M = how CBIO moved from the trade or filing date.
Insider trading in CBIO: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| McNeill Jonathan | President and COO | 2 | -$77.23K | Sep 18, 2026 | |
| Brumm Joshua T | Chief Executive Officer | 2 | -$159.78K | Sep 18, 2026 | |
| Scalzo Richard William | Chief Financial Officer | 2 | -$30.17K | Sep 16, 2026 | |
| Im Ellie Eunkyung | Chief Medical Officer | 2 | -$33.08K | Sep 16, 2026 | |
| Bispham Barbara Harlin | General Counsel and Corporate Secretary. | 2 | -$33.01K | Sep 16, 2026 | |
| Pinkas Jan | Chief Scientific Officer | 1 | -$11.78K | Sep 16, 2026 | |
| Lynch Ryan | Treasurer, Senior Vice President of Finance and Chief Accounting Officer. | 1 | -$4.30K | Sep 16, 2026 | |
| Jan Pinkas | Chief Scientific Officer | 1 | -$23.17K | Jun 22, 2026 | |
| Jonathan Mcneill | President and COO | 1 | -$369.68K | Jun 22, 2026 | |
| Ryan Lynch | Treasurer, Senior Vice President of Finance and Chief Accounting Officer. | 1 | -$8.37K | Jun 22, 2026 | |
| Joshua Brumm | Chief Executive Officer | 1 | -$761.07K | Jun 22, 2026 |
Frequently asked questions
Are CBIO insiders buying or selling?
Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 11 insiders made 16 open-market sales worth $1.51M, a net -$1.51M.
What is the latest insider trade in CBIO?
McNeill Jonathan, President and COO filed a sell (open-market sale) of 3.84K sh worth $64.15K on Sep 18, 2026.
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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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