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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
Sept. 9, 2025EVP21,000$64.56Sell$1,355,760.00
Sept. 5, 2025EVP6,000$59.60Sell$357,600.00
Sept. 3, 2025EVP76,850$60.97Sell$4,685,544.50
Sept. 3, 2025EVP3,162$61.02Sell$192,945.24
Sept. 3, 2025CEO203,814$60.32Sell$12,294,060.48
Sept. 3, 2025EVP19,658$60.81Sell$1,195,402.98
Sept. 3, 2025Director11,200$60.14Sell$673,568.00
Sept. 3, 2025EVP33,909$60.62Sell$2,055,563.58
Sept. 2, 2025EVP5,000$49.14Sell$245,700.00
Sept. 2, 2025EVP13,050$54.51Sell$711,355.50
Sept. 2, 2025EVP11,130$49.67Sell$552,827.10
Sept. 2, 2025EVP10,000$50.37Sell$503,700.00
Sept. 2, 2025Director16,800$55.87Sell$938,616.00
Sept. 2, 2025Director20,000$50.91Sell$1,018,200.00
Aug. 22, 2025Director1,427$42.53Sell$60,690.31
Aug. 18, 2025EVP10,000$43.98Sell$439,800.00
Aug. 6, 2025Director5,000$41.93Sell$209,650.00
Aug. 5, 2025EVP10,000$42.86Sell$428,600.00
Aug. 4, 2025EVP9,549$42.80Sell$408,697.20
July 30, 2025CEO2,432$45.00Sell$109,440.00
July 11, 2025CEO1,160$41.74Sell$48,418.40
May 1, 2025Director15,000$31.86Buy$477,900.00
April 16, 2025EVP680$28.37Sell$19,291.60
March 11, 2025CEO140$32.32Sell$4,524.80
Feb. 20, 2025EVP1,207$32.35Sell$39,046.45
Feb. 4, 2025EVP6,165$31.62Sell$194,937.30
Feb. 4, 2025CEO38,843$31.65Sell$1,229,380.95
Jan. 31, 2025CEO13,242$32.45Sell$429,702.90
Jan. 31, 2025CFO1,523$32.44Sell$49,406.12
Jan. 31, 2025EVP1,367$32.31Sell$44,167.77
Jan. 16, 2025EVP7,154$32.84Sell$234,937.36
Jan. 16, 2025CFO8,870$32.81Sell$291,024.70
Jan. 16, 2025CEO33,445$32.63Sell$1,091,310.35
Dec. 23, 2024Director5,000$36.22Buy$181,100.00
Nov. 12, 2024CEO6,630$38.05Sell$252,271.50
Nov. 12, 2024EVP1,194$37.92Sell$45,276.48
Oct. 16, 2024EVP53$38.31Sell$2,030.43
Aug. 5, 2024EVP2,430$48.00Sell$116,640.00
July 16, 2024Director12,000$50.00Sell$600,000.00
May 3, 2024Director6,000$42.71Sell$256,260.00
April 16, 2024EVP4,006$41.60Sell$166,649.60
Feb. 16, 2024CEO387$44.49Sell$17,217.63
Feb. 2, 2024EVP1,907$49.56Sell$94,510.92
Feb. 2, 2024CFO2,125$49.54Sell$105,272.50
Feb. 2, 2024CEO23,501$49.37Sell$1,160,244.37
Jan. 31, 2024EVP10,773$52.00Sell$560,196.00
Jan. 25, 2024CEO2,285$51.75Sell$118,248.75
Jan. 25, 2024EVP6,450$51.75Sell$333,787.50
Jan. 17, 2024EVP5,564$50.42Sell$280,536.88
Jan. 17, 2024CFO8,683$50.42Sell$437,796.86
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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.