Corestreet Logo

Ionis Pharmaceuticals Inc (IONS) Insider Trading

Total insider buys:
  • $25,659,000.00
Total insider sells:
  • $215,854,804.98
Most recent insider trade:
  • Sept. 12, 2025
Most active insider trader:
  • Stanley T Crooke
Trader NameDateTitleAmountPriceTypeTotal Value
Nov. 25, 2020Director3,590$50.05Sell$179,679.50
Nov. 25, 2020Chairman12,990$50.05Sell$650,149.50
Nov. 25, 2020CFO21,680$50.05Sell$1,085,084.00
Nov. 24, 2020EVP2,380$50.83Sell$120,975.40
Nov. 23, 2020Director3,200$50.12Sell$160,384.00
Nov. 23, 2020CFO19,000$50.11Sell$952,090.00
Nov. 23, 2020Chairman11,600$50.11Sell$581,276.00
Nov. 3, 2020Insider15,000$46.77Sell$701,550.00
Oct. 20, 2020Director2,889$46.86Sell$135,378.54
Sept. 21, 2020Chairman2,000$50.18Sell$100,360.00
Sept. 1, 2020CEO314$53.70Sell$16,861.80
June 25, 2020Director10,000$60.00Sell$600,000.00
June 25, 2020EVP15,000$59.77Sell$896,550.00
June 24, 2020Chairman5,000$58.80Sell$294,000.00
June 23, 2020Director15,000$58.76Sell$881,400.00
June 19, 2020Chairman10,000$58.33Sell$583,300.00
June 17, 2020Chairman15,000$57.90Sell$868,500.00
March 25, 2020Chairman15,000$47.00Sell$705,000.00
March 19, 2020Chairman15,000$45.17Sell$677,550.00
Feb. 10, 2020SVP3,882$59.60Sell$231,367.20
Jan. 2, 2020CEO173$60.25Sell$10,423.25
Dec. 23, 2019Director1,000$61.87Sell$61,870.00
Dec. 16, 2019Director1,000$65.45Sell$65,450.00
Dec. 9, 2019Director1,000$63.74Sell$63,740.00
Dec. 4, 2019SVP10,000$64.61Sell$646,100.00
Dec. 4, 2019CFO4,566$64.61Sell$295,009.26
Dec. 2, 2019SVP5,000$65.06Sell$325,300.00
Dec. 2, 2019Director1,000$64.08Sell$64,080.00
Nov. 25, 2019CFO4,000$62.50Sell$250,000.00
Nov. 25, 2019Director812$62.90Sell$51,074.80
Nov. 20, 2019Director2,000$60.00Sell$120,000.00
Nov. 20, 2019COO5,776$60.01Sell$346,617.76
Nov. 19, 2019CFO4,000$58.80Sell$235,200.00
Aug. 21, 2019Chairman22,000$71.52Sell$1,573,440.00
July 18, 2019CEO10,000$70.25Sell$702,500.00
July 2, 2019COO210$66.40Sell$13,944.00
June 24, 2019Director15,000$63.67Sell$955,050.00
June 4, 2019Director15,000$65.29Sell$979,350.00
May 6, 2019Director8,000$72.75Sell$582,000.00
April 29, 2019Director50,000$75.01Sell$3,750,500.00
April 16, 2019Chairman32,000$84.84Sell$2,714,880.00
April 8, 2019SVP46,240$84.01Sell$3,884,622.40
April 5, 2019SVP49,528$83.99Sell$4,159,856.72
April 3, 2019SVP7,654$84.83Sell$649,288.82
March 19, 2019Director10,000$79.63Sell$796,300.00
March 18, 2019SVP28,800$78.79Sell$2,269,152.00
March 12, 2019Director8,334$75.00Sell$625,050.00
Feb. 27, 2019Director8,333$70.00Sell$583,310.00
Feb. 27, 2019SVP26,800$68.01Sell$1,822,668.00
Feb. 26, 2019Chairman77,000$60.77Sell$4,679,290.00
First«3 of 7»Last

  • 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. 12, 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.