IONS
IONIS PHARMACEUTICALS INCData as of 2026 Q2 (06-30) · 13F snapshot
Summary
IONIS PHARMACEUTICALS INC (IONS) is held as common stock by 6 tracked hedge-fund managers, with a combined reported value of ~$281.82M; the largest are Baker Bros. Advisors, Renaissance Technologies, Cathie Wood. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 3 added, 2 trimmed, 1 closed. 4 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.
Attention · MediumThis quarter · Mixed
Common-stock holders64 also report options
Congress trades4
Price$45.57vs quarter-end-42.53%
Sectors0
This quarter's moves
Top holderBaker Bros. AdvisorsNew0
Added3
Trimmed / sold3
Common-stock positions
PUT and CALL disclosures are excluded from these holder counts and values.
Value $162.36M0.8% of portfolio2,047,7272026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Baker Bros. Advisors | $162.36M | 0.8% | Hold |
PUT / CALL disclosures
Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.
Value $30.65M— of portfolio386,5002026 Q2
Value $20.42M— of portfolio257,5002026 Q2
Value $18.43M— of portfolio232,5002026 Q2
Value $2.85M— of portfolio36,0002026 Q2
Value $1.61M— of portfolio20,3002026 Q2
Value $1.10M— of portfolio13,9002026 Q2
Value $269.6K— of portfolio3,4002026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinPUT | $30.65M | — | — |
| Izzy EnglanderCALL | $20.42M | — | — |
| Ken GriffinCALL | $18.43M | — | — |
| Paul Tudor JonesCALL | $2.85M | — | — |
| Steven CohenCALL | $1.61M | — | — |
| Steven CohenPUT | $1.10M | — | — |
| Paul Tudor JonesPUT | $269.6K | — | — |
ARK ETF holdings
Cathie Wood · dailyARK total shares held · drag to inspect
2026-09-29holds 857,318
- ARKGweight in fund1.79%$39.07M
ARK publishes full ETF holdings daily (SEC Rule 6c-11). Line shows ARK's total shares held over time (not price); markers are buy/sell days. Derived from public CSVs — research only, not investment advice.
Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.