Company profile
Crescent Biopharma, Inc. Insider Trading
CBIOEvery SEC Form 4 insider trading filing for Crescent Biopharma, Inc. (CBIO) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001253689
- Filings
- 70
- Insiders
- 43
- Last filing
- 2026-07-16
Activity summary
No insider transactions in the last 30 days. The most recent was on July 16, 2026, when Fairmount Funds Management LLC bought 853,450 shares. 70 filings from 43 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q2 23 to Q3 26. Crescent Biopharma, Inc. insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $20.0M.
90 day insight
Over the last 90 days, Crescent Biopharma, Inc. insiders bought $20.0M across 7 transactions with no open-market sales.
- Most active insider: Fairmount Funds Management LLC with 3 transactions totaling $20.0M.
- Largest single purchase: $12.4M by Fairmount Funds Management LLC on Jul 16, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 16, 2026 | Fairmount Funds Management LLC | CBIO | Purchase | 853,450 | $14.50 | $12.38M |
| Jul 16, 2026 | Fairmount Funds Management LLC | CBIO | Purchase | 525,897 | $14.50 | $7.62M |
| Jun 22, 2026 | McNeill Jonathan | CBIO | Sale10b5 | 20,549 | $17.99 | $370K |
| Jun 22, 2026 | Bispham Barbara Harlin | CBIO | Sale10b5 | 1,218 | $17.99 | $22K |
| Jun 22, 2026 | Pinkas Jan | CBIO | Sale10b5 | 1,288 | $17.99 | $23K |
45 more transactions hidden
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