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Ionis Pharmaceuticals (IONS)
NASDAQ:IONS
US Market
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Ionis Pharmaceuticals (IONS) Ownership - Who Owns Ionis Pharmaceuticals?

1,637 Followers

Ionis Pharmaceuticals (IONS) Ownership Overview

0.78%42.84%36.37%15.80%4.21%
36.37% Other Institutional Investors
15.80% ETFs
4.21% Public Companies and
Individual Investors
The ownership structure of Ionis Pharmaceuticals (IONS) stock is a mix of institutional, retail, and individual investors. Approximately 95.02% of the company’s stock is owned by Institutional Investors, 0.78% is owned by Insiders, and 4.21% is owned by Public Companies and Individual Investors.
The ownership structure of Ionis Pharmaceuticals (IONS) stock is a mix of institutional, retail, and individual investors. Approximately 79.22% of the company’s stock is owned by Institutional Investors, 0.78% is owned by Insiders, and 15.80% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Jul 31, 2026
xxxxxxxxxxxxx
$1058700
Feb 04, 2026
xxxxxxxxxxxxx
$7055489
Feb 02, 2026
xxxxxxxxxxxxx
$512424
Feb 02, 2026
xxxxxxxxxxxxx
$5208878

Recent Hedge Fund Trading Activity

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
13,408,934Institution8.07%778,924,976
12,523,415Institution7.54%727,485,177
12,447,188Institution7.49%723,057,151
7,668,655Institution4.61%445,472,169
5,112,347Institution3.08%296,976,237
4,723,802Institution2.84%274,405,658
4,458,145Institution2.68%258,973,643
3,803,181Institution2.29%220,926,784
2,810,244Institution1.69%163,247,074
2,760,687Institution1.66%160,368,308

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
12,523,415Institution7.54%727,485,177
12,447,188Institution7.49%723,057,151
7,668,655Institution4.61%445,472,169
4,723,802Institution2.84%274,405,658
4,458,145Institution2.68%258,973,643
3,803,181Institution2.29%220,926,784
2,810,244Institution1.69%163,247,074
2,760,687Institution1.66%160,368,308
1,963,162Institution1.18%114,040,081
1,655,237Institution1.00%96,152,717

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
5,005,976Institution3.01%259,159,378
3,600,281Institution2.17%285,466,280
2,088,422Institution1.26%108,117,607
1,902,385Institution1.14%98,486,471
1,444,393Institution0.87%83,962,565
1,328,230Institution0.80%77,210,010
1,222,880Institution0.74%71,037,099
874,296Institution0.53%50,787,855
785,225Institution0.47%45,645,129
671,944Institution0.40%39,033,227

FAQ

Who Owns Ionis Pharmaceuticals (IONS)?
According to the latest TipRanks data, approximately 36.37% of the company's stock is held by institutional investors, 0.78% is held by insiders, and 4.21% is held by retail investors.
    What percentage of Ionis Pharmaceuticals (IONS) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 36.37% of Ionis Pharmaceuticals (IONS) stock is held by institutional investors.
      What percentage of Ionis Pharmaceuticals (IONS) stock is held by retail investors?
      According to the latest TipRanks data, approximately 4.21% of Ionis Pharmaceuticals (IONS) stock is held by retail investors.
        Who owns the most shares of Ionis Pharmaceuticals (IONS)?
        Vanguard owns the most shares of Ionis Pharmaceuticals (IONS).
          What is the significance of the ownership structure for a publicly traded company?
          The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.