Company profile
C4 Therapeutics, Inc. Insider Trading
CCCCEvery SEC Form 4 insider trading filing for C4 Therapeutics, Inc. (CCCC) 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
- 0001662579
- Filings
- 131
- Insiders
- 21
- Last filing
- 2026-09-18
Activity summary
No discretionary insider buying or selling in the last 30 days. The 2 transactions filed were grants, option exercises or other non-open-market activity.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. C4 Therapeutics, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $222K.
90 day insight
Over the last 90 days, C4 Therapeutics, Inc. insiders filed 6 Form 4 transactions, none of which were open-market purchases or sales.
- Most active insider: Leonard Reyno with 2 transactions totaling $30K.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
Showing 5 of 50 transactions. The most significant are picked first.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | Kendra Adams | CCCC | Option Exercise | 6,250 | — | — |
| Sep 18, 2026 | Kendra Adams | CCCC | Tax Withholding | 2,775 | $3.39 | $9K |
| Jul 10, 2026 | Leonard Reyno | CCCC | Option Exercise | 15,325 | — | — |
| Jul 10, 2026 | Leonard Reyno | CCCC | Tax Withholding | 7,397 | $4.06 | $30K |
| Jan 16, 2026 | Leonard Reyno | CCCC | Sale | 10,000 | $2.22 | $22K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Institutional Ownership
Top 13F-HR holders of C4 Therapeutics, 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 →