Item 1
1(a) Name of Issuer: Ionis Pharmaceuticals, Inc.
1(b) Address of Issuers Principal Executive Offices:
2855 Gazelle Court, Carlsbad, California 92010
Item 2
2(a) Name of Person
Filing: BB Biotech AG (BB Biotech) on behalf of its wholly-owned subsidiary, Biotech Invest N.V. (Biotech Invest)
2(b) Address of Principal Business Office or, if none, Residence:
BB Biotech AG: Schwertstrasse 6, CH-8200 Schaffhausen, Switzerland
Biotech Invest N.V.: Ara Hill Top Building, Unit A-5, Pletterijweg Oost 1, Curaçao
2(c) Citizenship: BB Biotech AG: Switzerland
Biotech Invest N.V.: Curaçao
2(d) Title of Class of Securities: Common Stock, $0.001 Par Value
2(e) CUSIP Number: 462222100
Item 4. Ownership
Provide the
following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
|
(a) |
Amount beneficially owned: 8,590,000 |
|
(b) |
Percent of class: 6.0% |
|
(c) |
Number of shares as to which the person has: |
|
(i) |
Sole power to vote or to direct the vote 0 |
|
(ii) |
Shared power to vote or to direct the vote 8,590,000 |
|
(iii) |
Sole power to dispose or to direct the disposition of 0 |
|
(iv) |
Shared power to dispose or to direct the disposition of 8,590,000 |
Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control
Person.
This statement is filed jointly by BB Biotech and Biotech Invest, Biotech Invest is a wholly-owned subsidiary of BB
Biotech.
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