Insider tradingForm 4
CRESCENT BIOPHARMA, INC. (CBIO) Insider Trading
9 open-market trades reported since Sep 18, 2026: 0 purchases worth $0 and 9 sales worth $286K.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Joshua T. Brumm | CEO | 0 | $0 | 2 | $160K |
| Jonathan McNeill | COO | 0 | $0 | 2 | $77K |
| Jan Pinkas | Chief Scientific Officer | 0 | $0 | 1 | $12K |
| Ellie Eunkyung Im | Chief Medical Officer | 0 | $0 | 1 | $11K |
| Barbara Harlin Bispham | See Remarks | 0 | $0 | 1 | $11K |
| Richard William Scalzo | CFO | 0 | $0 | 1 | $10K |
| Ryan Lynch | See Remarks | 0 | $0 | 1 | $4K |
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Sep 18 | Joshua T. BrummCEO | ▼ SELL10b5-1 | $131K | |
| Sep 18 | Jonathan McNeillCOO | ▼ SELL10b5-1 | $64K | |
| Sep 18 | Joshua T. BrummCEO | ▼ SELL10b5-1 | $29K | |
| Sep 18 | Jonathan McNeillCOO | ▼ SELL10b5-1 | $13K | |
| Sep 18 | Jan PinkasChief Scientific Officer | ▼ SELL10b5-1 | $12K | |
| Sep 18 | Ellie Eunkyung ImChief Medical Officer | ▼ SELL10b5-1 | $11K | |
| Sep 18 | Barbara Harlin BisphamSee Remarks | ▼ SELL10b5-1 | $11K | |
| Sep 18 | Richard William ScalzoCFO | ▼ SELL10b5-1 | $10K | |
| Sep 18 | Ryan LynchSee Remarks | ▼ SELL10b5-1 | $4K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings