IONS · CUSIP 462222100

IONIS PHARMACEUTICALS INC.

Name: IONS superinvestor ownership, Q2 2026
Creator: Shameless Cloning

Reported by 1 of 79 curated managers in Q2 2026, in the holdings snapshot last exported 2026-08-24.

Managers holding: 1
Average portfolio weight: 13.7%
Combined reported value: $180.8M
Research group: 79

1 of the 79 superinvestors Shameless Cloning tracks reported IONIS PHARMACEUTICALS INC. (IONS) in their Q2 2026 13F filings, worth $180.8M combined, at an average 13.7% of their portfolios. The largest positions by portfolio weight belong to Tweedy Browne (13.7%).

Reporting managers

This is a historical 13F snapshot, not a live shareholder register. The count covers all matched managers; dashboard rankings use only those with at least 95% coverage. Reported value is measured at filing quarter-end, not at today's price.

Managers reporting IONIS PHARMACEUTICALS INC.
Manager / SEC filer	% of portfolio	Prior weight	Reported shares	Reported value
Tweedy BrowneTweedy, Browne Co LLC	13.7%	13.6%	2,280,311	$180.8M