Historical position

Renaissance Technologies LLC’s Ionis Pharmaceuticals Inc (IONS) position

Reported position history, portfolio importance and verified filing changes from public SEC disclosures.

Renaissance Technologies LLCVerified through Q2 2026
Relationship snapshot

At a glance

The full verified relationship, including prior ownership episodes and exits where supported.

First reportedQ1 2018Earliest verified positive filing snapshot
Latest statusHistorical positionBased on the latest supported relationship state
Peak shares2.04MHighest verified quarter-end share count
Quarters reported9Verified quarters with shares above zero
What happened?

Renaissance Technologies LLC first reported Ionis Pharmaceuticals Inc in Q1 2018. The reported position was increased and reduced across later filings. Verified positive position history runs through Q4 2022. The current relationship status cannot be determined reliably from supported data.

Verified SEC history

Position over time

See the same verified relationship through reported shares, portfolio weight or reported value.

Metric

Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.

Key filing events

What changed

Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.

Q4 2022
Bought 35.9% more+311.10K shares · 1.18M shares reported after the change
Filing context

Quarter-end price $0.04

Q4 2020
Sold 49.2% of the position−721.82K shares · 745.35K shares remained
Filing context

Quarter-end price $56.54

Q3 2020
Sold 16.3% of the position−285.70K shares · 1.47M shares remained
Filing context

Quarter-end price $47.45

Q2 2020
Bought 3.8% more+64.46K shares · 1.75M shares reported after the change
Filing context

Quarter-end price $58.96

Q1 2020
Sold 17.2% of the position−350.30K shares · 1.69M shares remained
Filing context

Quarter-end price $47.28

Q4 2019
Bought 12.4% more+225.70K shares · 2.04M shares reported after the change
Filing context

Quarter-end price $60.41

Portfolio importance

How important was Ionis Pharmaceuticals Inc in Renaissance Technologies LLC’s reported portfolio?

Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.

Last reported portfolio weight0.1%Q4 2022
Last reported rank#374Rank unavailable
Peak portfolio weight0.1%Q2 2019
Best historical rank#225Q4 2019
SEC evidence & methodology

SEC filing evidence

Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.

Latest verified stock price$43.812026-09-24

Market context only; not an investor transaction price.

Latest filing quarter-end price$0.04Q4 2022

Derived from validated reported value and shares where supported.

Latest verified investor filingQ2 2026 · filed 2026-08-13
Open SEC filing ↗

Coverage is bounded to the institution’s top reported positions and material events rather than every security in each Form 13F. The filing reflects reportable U.S.-listed holdings, not Renaissance’s secret models, complete trading book, exact trade dates or execution prices.