Ionis Pharmaceuticals Inc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| FMR LLC | 08/13/2026 | 24.63 M | $1.95 B | 0.31% | 14.94% |
| CAPITAL WORLD INVESTORS | 08/12/2026 | 21.67 M | $1.72 B | 2.28% | 13.14% |
| BLACKROCK, INC. | 08/07/2026 | 10.70 M | $848.77 M | 2.51% | 6.49% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 08/13/2026 | 7.86 M | $623.18 M | 0.65% | 4.77% |
| WELLINGTON MANAGEMENT GROUP LLP | 08/14/2026 | 7.65 M | $606.68 M | 19.71% | 4.64% |
| VANGUARD CAPITAL MANAGEMENT LLC | 08/13/2026 | 7.21 M | $571.80 M | 1.31% | 4.37% |
| TWO SIGMA INVESTMENTS, LP | 08/14/2026 | 6.25 M | $495.75 M | 6.74% | 3.79% |
| ROYAL BANK OF CANADA | 08/14/2026 | 6.18 M | $490.21 M | 62.62% | 3.75% |
| STATE STREET CORP | 08/07/2026 | 4.33 M | $343.71 M | 8.49% | 2.63% |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 08/14/2026 | 3.96 M | $313.94 M | -35.71% | 2.40% |
| GEODE CAPITAL MANAGEMENT, LLC | 08/12/2026 | 3.58 M | $294.75 M | -10.05% | 2.17% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 08/14/2026 | 3.18 M | $252.50 M | 5.26% | 1.93% |
| JPMORGAN CHASE & CO | 08/12/2026 | 2.67 M | $216.20 M | 13.04% | 1.62% |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | 08/13/2026 | 2.64 M | $209.33 M | 28.26% | 1.60% |
| TWEEDY, BROWNE CO LLC | 08/07/2026 | 2.28 M | $180.81 M | 0.21% | 1.38% |
| DEEP TRACK CAPITAL, LP | 08/14/2026 | 2.20 M | $174.44 M | 12.82% | 1.33% |
| GOLDMAN SACHS GROUP INC | 08/14/2026 | 2.11 M | $167.30 M | 24.13% | 1.28% |
| BAKER BROS. ADVISORS LP | 08/14/2026 | 2.05 M | $162.36 M | 0.00% | 1.24% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 08/14/2026 | 1.98 M | $156.97 M | 0.00% | 1.20% |
| AMERICAN CENTURY COMPANIES INC | 08/12/2026 | 1.95 M | $154.38 M | 17.03% | 1.18% |
| FRANKLIN RESOURCES INC | 08/13/2026 | 1.62 M | $128.72 M | 3.07% | 0.98% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 08/14/2026 | 1.61 M | $127.26 M | 1.38% | 0.97% |
| SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. | 08/14/2026 | 1.61 M | $127.26 M | 100.00% | 0.97% |
| BARCLAYS PLC | 08/14/2026 | 1.60 M | $127.11 M | 453.05% | 0.97% |
| PICTET ASSET MANAGEMENT HOLDING SA | 07/30/2026 | 1.60 M | $126.98 M | 11.29% | 0.97% |
| UBS ASSET MANAGEMENT AMERICAS INC | 08/13/2026 | 1.45 M | $115.34 M | -1.42% | 0.88% |
| POLAR CAPITAL HOLDINGS PLC | 08/14/2026 | 1.45 M | $115.29 M | 75.29% | 0.88% |
| ALYESKA INVESTMENT GROUP, L.P. | 08/14/2026 | 1.42 M | $112.43 M | 199.68% | 0.86% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 08/14/2026 | 1.30 M | $103.11 M | 72.06% | 0.79% |
| MACQUARIE MANAGEMENT HOLDINGS, INC. | 08/14/2026 | 1.30 M | $103.11 M | 65.60% | 0.79% |
| MORGAN STANLEY | 08/13/2026 | 1.28 M | $101.61 M | 24.84% | 0.78% |
| INVESCO LTD. | 08/14/2026 | 1.12 M | $88.86 M | -12.26% | 0.68% |
| VANGUARD FIDUCIARY TRUST CO | 08/13/2026 | 1.06 M | $84.11 M | 3.56% | 0.64% |
| BELLEVUE GROUP AG | 08/14/2026 | 972.26 K | $77.09 M | -46.54% | 0.59% |
| GROUPAMA ASSET MANAGMENT | 08/14/2026 | 937.08 K | $75.20 M | 13.65% | 0.57% |
| NORTHERN TRUST CORP | 08/13/2026 | 913.61 K | $72.44 M | 5.23% | 0.55% |
| CAPITAL INTERNATIONAL INVESTORS | 08/12/2026 | 823.76 K | $65.32 M | 100.00% | 0.50% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 08/14/2026 | 822.10 K | $65.18 M | 80.96% | 0.50% |
| DAVERN CAPITAL PARTNERS, LP | 08/13/2026 | 798.71 K | $63.33 M | 106.44% | 0.48% |
| BANK OF AMERICA CORP /DE/ | 08/14/2026 | 790.99 K | $62.72 M | -5.90% | 0.48% |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 08/14/2026 | 787.26 K | $62.42 M | -43.93% | 0.48% |
| GW&K INVESTMENT MANAGEMENT, LLC | 08/12/2026 | 746.97 K | $59.23 M | -4.16% | 0.45% |
| BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. | 08/13/2026 | 734.22 K | $58.22 M | -19.10% | 0.45% |
| NUVEEN, LLC | 08/11/2026 | 726.28 K | $57.59 M | 11.99% | 0.44% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 08/13/2026 | 684.24 K | $54.25 M | -21.72% | 0.42% |
| EVERSEPT PARTNERS, LP | 08/14/2026 | 664.68 K | $52.70 M | 5.15% | 0.40% |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 08/14/2026 | 655.45 K | $51.97 M | -2.59% | 0.40% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 08/03/2026 | 651.82 K | $51.68 M | -2.15% | 0.40% |
| NEUBERGER BERMAN GROUP LLC | 08/13/2026 | 633.53 K | $50.23 M | 42.92% | 0.38% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 08/13/2026 | 632.03 K | $50.11 M | -14.34% | 0.38% |
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Ionis Pharmaceuticals Inc institutional Ownership - FAQ's
During the previous two years, 726 institutional investors and hedge funds held shares of Ionis Pharmaceuticals Inc. The most heavily invested institutionals were:
FMR LLC: 24.63 M
Capital World Investors: 21.67 M
BlackRock, Inc.: 10.7 M
VANGUARD PORTFOLIO MANAGEMENT LLC: 7.86 M
WELLINGTON MANAGEMENT GROUP LLP: 7.65 M
VANGUARD CAPITAL MANAGEMENT LLC: 7.21 M
109.89% of Ionis Pharmaceuticals Inc stock is owned by institutional investors.
Institutional investors have bought a total of 237.62 M shares in the last 24 months. This purchase volume represents approximately $17.91 B in transactions.