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Ionis Pharmaceuticals Inc (IONS) Insider Trading

Total insider buys:
  • $25,659,000.00
Total insider sells:
  • $215,745,018.98
Most recent insider trade:
  • Sept. 9, 2025
Most active insider trader:
  • Stanley T Crooke
Trader NameDateTitleAmountPriceTypeTotal Value
Jan. 19, 2016CFO1,899$41.46Sell$78,732.54
Jan. 19, 2016insider872$41.46Sell$36,153.12
Jan. 5, 2016CEO5,500$62.10Sell$341,550.00
Jan. 4, 2016CEO11,000$61.05Sell$671,550.00
Jan. 4, 2016COO809$61.05Sell$49,389.45
Jan. 4, 2016SVP127$61.00Sell$7,747.00
Dec. 16, 2015SVP7,909$57.41Sell$454,055.69
Dec. 1, 2015SVP1,000$61.50Sell$61,500.00
Nov. 11, 2015Director6,875$64.18Sell$441,237.50
Nov. 10, 2015SVP5,000$64.00Sell$320,000.00
Nov. 6, 2015SVP5,000$56.00Sell$280,000.00
Nov. 3, 2015SVP1,000$51.95Sell$51,950.00
Oct. 23, 2015CEO44,000$43.85Sell$1,929,400.00
Oct. 2, 2015COO12,436$40.75Sell$506,767.00
July 6, 2015COO6,218$57.01Sell$354,488.18
July 6, 2015CEO5,000$57.01Sell$285,050.00
July 1, 2015CEO6,175$57.56Sell$355,433.00
July 1, 2015COO6,218$57.56Sell$357,908.08
June 8, 2015SVP7,600$66.22Sell$503,272.00
April 7, 2015CEO22,377$63.07Sell$1,411,317.39
April 7, 2015COO5,565$63.07Sell$350,984.55
March 24, 2015SVP15,000$70.61Sell$1,059,150.00
March 19, 2015CFO10,000$73.33Sell$733,300.00
March 19, 2015SVP30,525$74.85Sell$2,284,796.25
March 2, 2015Director7,000$65.97Sell$461,790.00
Jan. 27, 2015CEO11,000$72.93Sell$802,230.00
Jan. 16, 2015SVP1,543$67.96Sell$104,862.28
Jan. 16, 2015COO4,093$67.96Sell$278,160.28
Jan. 16, 2015CFO1,291$67.96Sell$87,736.36
Jan. 16, 2015CEO9,054$67.96Sell$615,309.84
Jan. 9, 2015CEO11,000$73.57Sell$809,270.00
Jan. 7, 2015CEO22,000$67.04Sell$1,474,880.00
Jan. 2, 2015COO11,200$62.12Sell$695,744.00
Jan. 2, 2015SVP1,500$62.12Sell$93,180.00
Dec. 1, 2014SVP1,500$51.21Sell$76,815.00
Nov. 3, 2014SVP1,500$46.17Sell$69,255.00
Oct. 30, 2014COO11,071$45.12Sell$499,523.52
Oct. 23, 2014CEO14,600$42.22Sell$616,412.00
Oct. 3, 2014CEO36,000$38.52Sell$1,386,720.00
Oct. 1, 2014SVP1,500$38.04Sell$57,060.00
Oct. 1, 2014CEO20,000$37.91Sell$758,200.00
Aug. 27, 2014SVP5,000$40.53Sell$202,650.00
Aug. 13, 2014CEO15,500$35.45Sell$549,475.00
Aug. 12, 2014SVP1,500$35.00Sell$52,500.00
Aug. 1, 2014CEO16,000$30.53Sell$488,480.00
July 31, 2014SVP79$31.50Sell$2,488.50
July 1, 2014CEO17,500$35.57Sell$622,475.00
July 1, 2014SVP1,500$35.33Sell$52,995.00
June 23, 2014SVP11,200$36.78Sell$411,936.00
June 19, 2014CEO11,000$35.10Sell$386,100.00
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  • Insiders are both buying and selling Ionis Pharmaceuticals Inc stock.

  • The insider traders at Ionis Pharmaceuticals Inc are: Stanley T Crooke, Patrick R O'neil, Brett P Monia, B Lynne Parshall, C Frank Bennett, Joseph Klein III, Elizabeth L Hougen, Richard S Geary, Eric Swayze, Frederick T Muto, Joseph H Wender, Stanley Crooke, Stanley T. Crooke, Spencer R Berthelsen, Sarah Boyce, Eugene Schneider, Joseph Wender, Brett Monia, Brian Birchler, Patrick R. O'neil, Richard Geary, Michael R Hayden, Allene M Diaz, Ionis Pharmaceuticals Inc, Elizabeth L. Hougen, Onaiza Cadoret-Manier, Brett P. Monia, Shannon L Devers, Breaux Castleman, and Joseph Baroldi

  • The most active insider trader at Ionis Pharmaceuticals Inc is Stanley T Crooke with 63 trades.

  • Stanley T Crooke has sold the most Ionis Pharmaceuticals Inc stock with a total value of $66,110,239.88.

  • Ionis Pharmaceuticals Inc has bought the most Ionis Pharmaceuticals Inc stock with a total value of $50,000,000.00.

  • The most recent insider trade for Ionis Pharmaceuticals Inc was on Sept. 9, 2025.

  • The single biggest insider buy for Ionis Pharmaceuticals Inc was from Ionis Pharmaceuticals Inc with a total value of $25,000,000.00 on July 19, 2017.

  • The single biggest insider sell for Ionis Pharmaceuticals Inc was from Brett P Monia with a total value of $12,294,060.48 on Sept. 3, 2025.