Company profile
CG Oncology, Inc. Insider Trading
CGONEvery SEC Form 4 insider trading filing for CG Oncology, Inc. (CGON) 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
- Biological Products, (No Diagnostic Substances)
- CIK
- 0001991792
- Filings
- 75
- Insiders
- 18
- Last filing
- 2026-09-15
Activity summary
Recent insider activity is bullish. Over the last 30 days, 2 insiders purchased shares (net $600). Buying was led by Leonard E Post.
Three year balance
Buy and sell value by quarter, Q1 24 to Q3 26. CG Oncology, Inc. insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $50.1M.
90 day insight
Over the last 90 days, CG Oncology, Inc. insiders bought $648K across 10 transactions with no open-market sales.
- Most active insider: Leonard E Post with 12 transactions totaling $573K.
- Largest single purchase: $24.8M by Brian Guan-Chyun Liu on Jun 25, 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 |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Leonard E Post | CGON | Option Exercise | 1,000 | $0.60 | $600 |
| Sep 15, 2026 | Leonard E Post | CGON | Option Exercise | 1,000 | — | — |
| Sep 15, 2026 | Leonard E Post | CGON | Sale10b5 | 1,000 | $72.98 | $73K |
| Aug 14, 2026 | Leonard E Post | CGON | Option Exercise | 1,000 | $0.60 | $600 |
| Aug 14, 2026 | Leonard E Post | CGON | Option Exercise | 1,000 | — | — |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of CG Oncology, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →