Question 1

Who owns IONS stock?

Accepted Answer

IONS (IONIS PHARMACEUTICALS INC.) is held by 1 tracked superinvestors with an aggregate position value of $181M based on the most recent SEC 13F filings. Top institutional holders include: Tweedy Browne.

Question 2

How much IONS do superinvestors hold in aggregate?

Accepted Answer

Across 1 tracked managers, superinvestors collectively report $181M in IONS positions worth 2,280,311 shares.

Question 3

What is the largest holder of IONS?

Accepted Answer

The largest tracked holder of IONS is Tweedy Browne (Tweedy Browne Company) with 2,280,311 shares worth $181M, representing 13.70% of their portfolio.

IONSIONIS PHARMACEUTICALS INC.

📊 Holdings Over Time

Quarter-by-Quarter Activity