Company profile
CytomX Therapeutics, Inc. Insider Trading
CTMXEvery SEC Form 4 insider trading filing for CytomX Therapeutics, Inc. (CTMX) 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
- 0001501989
- Filings
- 93
- Insiders
- 16
- Last filing
- 2026-08-03
Activity summary
No insider transactions in the last 30 days. The most recent was on August 3, 2026, when Alejandra Carvajal bought 100,000 shares. 93 filings from 16 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. CytomX 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 $1.2M.
90 day insight
Over the last 90 days, CytomX Therapeutics, Inc. insiders bought $0 across 3 transactions with no open-market sales.
- Most active insider: Alejandra Carvajal with 2 transactions totaling $0.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 3, 2026 | Alejandra Carvajal | CTMX | Award | 100,000 | — | — |
| Aug 3, 2026 | Alejandra Carvajal | CTMX | Award | 450,000 | — | — |
| Jul 24, 2026 | Charles S. Fuchs | CTMX | Award | 118,000 | — | — |
| Jun 17, 2026 | Halley E Gilbert | CTMX | Award | 59,000 | — | — |
| Jun 17, 2026 | Zhen Su | CTMX | Award | 59,000 | — | — |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of CytomX 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 →