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Ionis Pharmaceuticals Inc (IONS) Insider Trading

Total insider buys:
  • $25,659,000.00
Total insider sells:
  • $273,991,656.12
Most recent insider trade:
  • April 2, 2026
Most active insider trader:
  • Stanley T Crooke
Trader NameDateTitleAmountPriceTypeTotal Value
Jan. 16, 2015SVP1,543$67.96Sell$104,862.28
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
June 10, 2014CEO11,000$33.46Sell$368,060.00
June 2, 2014Director10,000$28.59Sell$285,900.00
April 2, 2014CEO8,800$43.65Sell$384,120.00
Jan. 30, 2014COO89,510$49.49Sell$4,429,849.90
Jan. 24, 2014Director10,313$48.66Sell$501,830.58
Jan. 22, 2014Director10,000$50.98Sell$509,800.00
Jan. 22, 2014SVP22,200$50.05Sell$1,111,110.00
Jan. 16, 2014COO1,641$47.08Sell$77,258.28
Jan. 16, 2014CEO3,527$47.08Sell$166,051.16
Jan. 8, 2014SVP15,000$40.45Sell$606,750.00
Jan. 8, 2014CEO12,500$40.05Sell$500,625.00
Jan. 2, 2014CEO31,500$39.35Sell$1,239,525.00
Dec. 26, 2013COO37,811$40.91Sell$1,546,848.01
Dec. 24, 2013COO70,000$41.49Sell$2,904,300.00
Dec. 20, 2013Director19,731$39.58Sell$780,952.98
Dec. 5, 2013SVP10,000$39.92Sell$399,200.00
Nov. 26, 2013Director10,000$36.63Sell$366,300.00
Sept. 20, 2013CEO58,740$35.19Sell$2,067,060.60
Sept. 20, 2013COO90,000$35.43Sell$3,188,700.00
Sept. 20, 2013SVP68,281$34.21Sell$2,335,893.01
Sept. 19, 2013SVP10,000$35.02Sell$350,200.00
Sept. 11, 2013COO63,505$31.04Sell$1,971,195.20
Sept. 9, 2013SVP10,000$30.23Sell$302,300.00
Sept. 4, 2013SVP2,500$27.09Sell$67,725.00
Aug. 26, 2013SVP2,909$25.58Sell$74,412.22
Aug. 9, 2013Director18,750$28.22Sell$529,125.00
July 23, 2013COO11,500$30.00Sell$345,000.00
July 22, 2013CEO62,200$30.50Sell$1,897,100.00
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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, Eugene Schneider, Stanley T. Crooke, Spencer R Berthelsen, Joseph Wender, Brian Birchler, Shannon L Devers, Allene M Diaz, Sarah Boyce, Richard Geary, Brett Monia, Patrick R. O'neil, Michael R Hayden, Joseph Baroldi, Elizabeth L. Hougen, Kyle Jenne, Onaiza Cadoret-Manier, Brett P. Monia, Breaux Castleman, and Ionis Pharmaceuticals Inc

  • 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 April 2, 2026.

  • 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 Elizabeth L Hougen with a total value of $15,569,475.20 on March 16, 2026.