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Ionis Pharmaceuticals Inc (IONS) Insider Trading

Total insider buys:
  • $25,659,000.00
Total insider sells:
  • $228,408,051.13
Most recent insider trade:
  • Feb. 13, 2026
Most active insider trader:
  • Stanley T Crooke
Trader NameDateTitleAmountPriceTypeTotal Value
Dec. 4, 2017SVP4,000$57.00Sell$228,000.00
Dec. 1, 2017SVP1,000$55.50Sell$55,500.00
Nov. 30, 2017Director3,000$53.55Sell$160,650.00
Nov. 29, 2017SVP6,000$53.02Sell$318,120.00
Nov. 16, 2017SVP7,000$54.35Sell$380,450.00
Nov. 15, 2017Director2,250$53.56Sell$120,510.00
Nov. 13, 2017Director3,000$55.39Sell$166,170.00
Nov. 1, 2017SVP1,000$58.35Sell$58,350.00
Oct. 18, 2017SVP12,250$65.00Sell$796,250.00
Oct. 18, 2017COO16,118$65.00Sell$1,047,670.00
Oct. 13, 2017SVP8,268$60.00Sell$496,080.00
Oct. 13, 2017Chairman16,500$59.46Sell$981,090.00
Oct. 5, 2017SVP1,000$55.00Sell$55,000.00
Oct. 4, 2017Chairman27,500$52.89Sell$1,454,475.00
Oct. 2, 2017CEO15,000$52.00Sell$780,000.00
Sept. 6, 2017SVP1,000$55.00Sell$55,000.00
July 24, 2017SVP10,000$59.29Sell$592,900.00
July 20, 2017Chairman11,000$55.35Sell$608,850.00
July 19, 2017Major Shareholder3,125,000$8.00Buy$25,000,000.00
July 17, 2017Chairman16,500$52.45Sell$865,425.00
July 3, 2017Chairman16,500$52.10Sell$859,650.00
July 3, 2017SVP309$51.35Sell$15,867.15
June 1, 2017SVP70$48.00Sell$3,360.00
May 1, 2017SVP650$48.75Sell$31,687.50
April 25, 2017Chairman16,500$47.81Sell$788,865.00
April 24, 2017SVP500$45.00Sell$22,500.00
April 19, 2017Chairman5,500$43.25Sell$237,875.00
April 13, 2017Chairman22,000$40.69Sell$895,180.00
April 12, 2017SVP1,000$40.07Sell$40,070.00
March 3, 2017SVP5,000$55.00Sell$275,000.00
March 1, 2017COO4,625$49.26Sell$227,827.50
March 1, 2017SVP1,500$49.29Sell$73,935.00
Feb. 6, 2017SVP1,500$46.17Sell$69,255.00
Jan. 17, 2017COO7,246$46.29Sell$335,417.34
Jan. 17, 2017SVP2,502$46.29Sell$115,817.58
Jan. 17, 2017CFO2,273$46.29Sell$105,217.17
Jan. 17, 2017Insider1,361$46.29Sell$63,000.69
Jan. 17, 2017CEO15,382$46.29Sell$712,032.78
Jan. 10, 2017Chairman13,200$49.25Sell$650,100.00
Jan. 4, 2017Chairman18,700$48.89Sell$914,243.00
Jan. 3, 2017SVP309$48.60Sell$15,017.40
Dec. 20, 2016SVP130$52.48Sell$6,822.40
Dec. 15, 2016COO4,000$50.00Sell$200,000.00
Dec. 5, 2016CFO2,500$46.05Sell$115,125.00
Dec. 5, 2016SVP350$45.00Sell$15,750.00
Dec. 1, 2016COO12,500$42.23Sell$527,875.00
Nov. 14, 2016SVP1,000$45.00Sell$45,000.00
Nov. 11, 2016SVP5,000$39.75Sell$198,750.00
Nov. 7, 2016SVP5,000$34.00Sell$170,000.00
Oct. 5, 2016Chairman11,000$36.61Sell$402,710.00
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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, Eugene Schneider, Spencer R Berthelsen, Brian Birchler, Sarah Boyce, Joseph Wender, Patrick R. O'neil, Michael R Hayden, Richard Geary, Allene M Diaz, Brett Monia, Joseph Baroldi, Elizabeth L. Hougen, Onaiza Cadoret-Manier, Brett P. Monia, Shannon L Devers, 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 Feb. 13, 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 Brett P Monia with a total value of $12,294,060.48 on Sept. 3, 2025.