Companies / Ionis Pharmaceuticals Inc / Activity
Activity — Ionis Pharmaceuticals Inc
165 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Baker Bros. Advisors LP 13F manager | Add | Common stock | $19.21M | +256K +14.28% | 2,047,727 1.23% of shares | medium |
| Q1 2026 as of | TimesSquare Capital Management, LLC 13F manager | New | Common stock | $20.70M | +276K | 275,674 0.17% of shares | medium |
| Q1 2026 as of | Atle Fund Management AB 13F manager | Trim | Common stock | $-21.75M | -65K -69.83% | 27,873 0.02% of shares | medium |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Trim | Common stock | $-24.44M | -325K -30.61% | 737,859 0.44% of shares | medium |
| Q1 2026 as of | Norges Bank 13F manager | Exit | Common stock | $-25.33M | -320K -100.00% | 0 | medium |
| Q2 2026 as of | TimesSquare Capital Management, LLC 13F manager | Add | Common stock | $26.83M | +338K +122.75% | 614,070 0.37% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $28.54M | +360K +9.06% | 4,334,848 2.61% of shares | medium |
| Q1 2026 as of | Amundi 13F manager | Trim | Common stock | $-32.81M | -437K -94.80% | 23,958 0.01% of shares | medium |
| Q1 2026 as of | Perceptive Advisors LLC 13F manager | New | Common stock | $37.85M | +504K | 504,000 0.30% of shares | medium |
| Q4 2025 as of | Norges Bank 13F manager | Trim | Common stock | $-42.57M | -538K -62.70% | 320,160 0.19% of shares | medium |
| Q1 2026 as of | Nomura Holdings Inc 13F manager | Trim | Common stock | $-55.17M | -735K -86.56% | 114,080 0.07% of shares | high |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $64.00M | +835K +26.53% | 3,984,332 2.40% of shares | high |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common stock | $71.95M | +958K +1027.48% | 1,051,506 0.63% of shares | high |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Add | Common stock | $201.47M | +2.7M +239.81% | 3,801,815 2.29% of shares | high |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $240.21M | +3.2M +120.32% | 5,857,629 3.52% of shares | high |