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CytomX Therapeutics Inc (CTMX) Insider Trading

Total insider buys:
  • $7,816,720.00
Total insider sells:
  • $51,713,192.57
Most recent insider trade:
  • March 17, 2026
Most active insider trader:
  • Sean A Mccarthy
Trader NameDateTitleAmountPriceTypeTotal Value
April 2, 2018CFO3,000$28.12Sell$84,360.00
March 26, 2018Director5,000$31.93Sell$159,650.00
March 2, 2018Director16,181$30.00Sell$485,430.00
March 2, 2018CFO33,000$29.99Sell$989,670.00
March 2, 2018Insider16,160$30.00Sell$484,800.00
Feb. 28, 2018Insider23,840$30.00Sell$715,200.00
Feb. 28, 2018Director3,819$30.00Sell$114,570.00
Feb. 1, 2018CFO2,548$26.69Sell$68,006.12
Jan. 5, 2018Director10,000$25.01Sell$250,100.00
Jan. 5, 2018Insider6,526$25.01Sell$163,215.26
Jan. 2, 2018Insider13,052$21.04Sell$274,614.08
Jan. 2, 2018CFO2,500$21.11Sell$52,775.00
Dec. 26, 2017Director5,000$22.29Sell$111,450.00
Dec. 1, 2017CFO2,500$20.58Sell$51,450.00
Dec. 1, 2017Insider14,340$20.60Sell$295,404.00
Nov. 1, 2017CFO2,500$20.00Sell$50,000.00
Nov. 1, 2017CEO14,342$19.86Sell$284,832.12
Oct. 4, 2017Major Shareholder24,777$24.34Sell$603,072.18
Oct. 4, 2017Insider48,368$24.34Sell$1,177,277.12
Oct. 4, 2017Director10,000$24.27Sell$242,700.00
Oct. 4, 2017CEO19,120$24.13Sell$461,365.60
Oct. 2, 2017CFO2,500$18.10Sell$45,250.00
Oct. 2, 2017Insider9,562$18.57Sell$177,566.34
Sept. 26, 2017Director5,000$17.30Sell$86,500.00
Sept. 19, 2017Major Shareholder20,000$18.00Sell$360,000.00
Sept. 1, 2017Insider9,930$17.32Sell$171,987.60
Sept. 1, 2017CFO2,500$17.17Sell$42,925.00
Aug. 31, 2017Insider18,756$17.50Sell$328,230.00
Aug. 9, 2017CFO2,500$15.00Sell$37,500.00
Aug. 9, 2017Insider4,781$15.00Sell$71,715.00
July 3, 2017CFO2,500$15.47Sell$38,675.00
July 3, 2017Insider4,781$15.52Sell$74,201.12
June 29, 2017Major Shareholder15,000$16.00Sell$240,000.00
June 26, 2017Director5,000$14.61Sell$73,050.00
June 26, 2017Insider4,481$15.00Sell$67,215.00
June 5, 2017Insider300$15.00Sell$4,500.00
May 1, 2017Insider4,781$15.70Sell$75,061.70
April 12, 2017Major Shareholder28,357$16.36Sell$463,920.52
April 4, 2017Insider9,562$17.22Sell$164,657.64
March 27, 2017Major Shareholder1,650,000$17.39Sell$28,693,500.00
March 20, 2017Insider14,343$19.60Sell$281,122.80
March 20, 2017CFO21,517$19.81Sell$426,251.77
March 3, 2017Insider14,343$15.00Sell$215,145.00
Nov. 28, 2016Director38,459$11.56Sell$444,586.04
Nov. 22, 2016Director42,550$11.71Sell$498,260.50
Nov. 21, 2016Director45,324$11.61Sell$526,211.64
Nov. 16, 2016Director51,581$11.50Sell$593,181.50
Nov. 15, 2016Director33,064$11.48Sell$379,574.72
Nov. 14, 2016Director86,270$11.16Sell$962,773.20
Nov. 9, 2016Director13,730$11.03Sell$151,441.90
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  • Insiders are both buying and selling CytomX Therapeutics Inc stock.

  • The insider traders at CytomX Therapeutics Inc are: Sean A Mccarthy, Debanjan Ray, Ix L.P. Canaan, Frederick W Gluck, Lloyd A Rowland, Christopher Ogden, Marcia Belvin, Timothy M Shannon, Robert I Tepper, Jeffrey B Landau, Yu-Waye Chu, Carlos Campoy, Rachel Humphrey, Amy C Peterson, Robert C Goeltz II, James E Flynn, Rock Ventures Lp Third, Elaine V Jones, Sean A. Mccarthy, Cynthia J Ladd, Kevin P Starr, and William Michael Kavanaugh

  • The most active insider trader at CytomX Therapeutics Inc is Sean A Mccarthy with 32 trades.

  • Rock Ventures Lp Third has sold the most CytomX Therapeutics Inc stock with a total value of $57,387,000.00.

  • James E Flynn has bought the most CytomX Therapeutics Inc stock with a total value of $15,000,000.00.

  • The most recent insider trade for CytomX Therapeutics Inc was on March 17, 2026.

  • The single biggest insider buy for CytomX Therapeutics Inc was from James E Flynn with a total value of $7,500,000.00 on Oct. 14, 2015.

  • The single biggest insider sell for CytomX Therapeutics Inc was from Rock Ventures Lp Third with a total value of $28,693,500.00 on March 27, 2017.