Tweedy Browne Co. Ionis Pharmaceuticals Inc Transaction History
Tweedy, Browne CO LLC
- $1.01 Billion
- Q2 2025
A detailed history of Tweedy Browne Co. (Tweedy, Browne CO LLC) transactions in Ionis Pharmaceuticals Inc stock. As of the latest transaction made, Tweedy, Browne CO LLC holds 2,891,948 shares of IONS stock, worth $119 Million. This represents 11.3% of its overall portfolio holdings.
Number of Shares
2,891,948
Previous 2,983,518
3.07%
Holding current value
$119 Million
Previous $90 Million
26.94%
% of portfolio
11.3%
Previous 8.43%
Shares
11 transactions
Others Institutions Holding IONS
# of Institutions
413Shares Held
149MCall Options Held
1.72MPut Options Held
722K-
Vanguard Group Inc Valley Forge, PA16.7MShares$688 Million0.01% of portfolio
-
T. Rowe Price Investment Management, Inc. Baltimore, MD16MShares$661 Million0.4% of portfolio
-
Capital World Investors Los Angeles, CA12.5MShares$516 Million0.08% of portfolio
-
Black Rock Inc. New York, NY10.3MShares$425 Million0.01% of portfolio
-
Bellevue Group Ag Kuesnacht, V87.85MShares$323 Million7.06% of portfolio
About IONIS PHARMACEUTICALS INC
- Ticker IONS
- Exchange NASDAQ
- Sector Healthcare
- Industry Biotechnology
- Shares Outstandng 141,940,992
- Market Cap $5.85B
- Description
- Ionis Pharmaceuticals, Inc. discovers and develops RNA-targeted therapeutics in the United States. The company offers SPINRAZA for spinal muscular atrophy (SMA) in pediatric and adult patients; TEGSEDI, an injection for the treatment of polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; and WAYLIVRA, a treatment for famil...