Murray Stahl's IONS Position Overview
Murray Stahl (via Horizon Kinetics Asset Management LLC) currently holds 12,476 shares of Ionis Pharmaceuticals, Inc. (IONS) worth $816,180, representing 0.01% of the portfolio. First purchased in 2015-Q4, this long-term strategic position has been held for 40 quarters.
Based on 13F filings, Murray Stahl has maintained a strategic position in IONS, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2023, adding 5,000 shares. Largest reduction occurred in Q3 2018, reducing 5,000 shares.
Analysis based on 13F filings available since 2013 Q2
Murray Stahl's Ionis Pharmaceuticals (IONS) Holding Value Over Time
Track share changes against reported price movement
Quarterly Ionis Pharmaceuticals (IONS) Trades by Murray Stahl
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2015 | +17,000 | New Buy | 17,000 | $61.94 |
| Q2 2016 | +200 | Add 1.18% | 17,200 | $23.31 |
| Q3 2017 | +200 | Add 1.16% | 17,400 | $50.69 |
| Q4 2017 | -200 | Reduce 1.15% | 17,200 | $50.29 |
| Q3 2018 | -5,000 | Reduce 29.07% | 12,200 | $51.56 |
| Q1 2019 | +12,201 | Add 0.00% | 12,200 | $81.15 |
| Q1 2020 | -200 | Reduce 1.64% | 12,000 | $47.25 |
| Q2 2020 | +1,000 | Add 8.33% | 13,000 | $58.92 |
| Q4 2020 | -4,000 | Reduce 30.77% | 9,000 | $56.56 |
| Q1 2021 | -1,000 | Reduce 11.11% | 8,000 | $45.00 |
| Q1 2023 | +5,000 | Add 62.50% | 13,000 | $35.74 |
| Q4 2023 | -524 | Reduce 4.03% | 12,476 | $50.59 |
| Q3 2024 | -524 | Reduce 4.20% | 11,952 | $40.06 |
| Q4 2024 | +524 | Add 4.38% | 12,476 | $34.96 |
| Q2 2025 | -524 | Reduce 4.20% | 11,952 | $39.51 |
| Q3 2025 | +524 | Add 4.38% | 12,476 | $65.42 |
Murray Stahl's Ionis Pharmaceuticals Investment FAQs
Murray Stahl first purchased Ionis Pharmaceuticals, Inc. (IONS) in Q4 2015, acquiring 17,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Murray Stahl has held Ionis Pharmaceuticals, Inc. (IONS) for 40 quarters since Q4 2015. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Murray Stahl's largest addition to Ionis Pharmaceuticals, Inc. (IONS) was in Q4 2015, adding 17,000 shares worth $1.05 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Murray Stahl's firm, Horizon Kinetics Asset Management LLC, owns 12,476 shares of Ionis Pharmaceuticals, Inc. (IONS), valued at approximately $816,180. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Ionis Pharmaceuticals, Inc. (IONS) represents approximately 0.01% of Murray Stahl's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Murray Stahl's peak holding in Ionis Pharmaceuticals, Inc. (IONS) was 17,400 shares, as reported at the end of Q3 2017. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.