Margaret Dugan $ONC SEC Form 4 Insider Trading

Margaret Dugan has filed a total of 1 insider trades in $ONC since 2021. Their most recent trade was a sale of 212 shares, made on May 22, 2026. Their largest trade was a sale of 212 shares, made on May 22, 2026. We estimate that they now own 73,164 shares of $ONC, worth an estimated $23.8 million.

Insider Trading at $ONC

There have been a total of 238 insider trades reported at $ONC since 2021, with 0 shares purchased and 1.8 million shares sold. The most active insider traders in $ONC stock have been John Oyler, Xiaobin Wu, and Chan Henry Lee. The most recent trade was a sale of 1,669 shares reported by Chan Henry Lee (SVP, General Counsel), made on Jul 22, 2026.

$ONC Executives and Stock Owners with Insider Trades

• John Oyler, Chief Executive Officer

• Xiaobin Wu, President and COO

• Chan Henry Lee, SVP, General Counsel

• Lai Wang, Global Head of R&D

• Titus B. Ball, Principal Accounting Officer

• Lai Wang, President, Global Head of R&D

• Aaron Rosenberg, Chief Financial Officer

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.