Attached files
| file | filename |
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| EX-32 - EXHIBIT 32.1 - IONIS PHARMACEUTICALS INC | exhibit32_1.htm |
| EX-31.2 - EXHIBIT 31.2 - IONIS PHARMACEUTICALS INC | exhibit31_2.htm |
| EX-31.1 - EXHIBIT 31.1 - IONIS PHARMACEUTICALS INC | exhibit31_1.htm |
| EX-21.1 - EXHIBIT 21.1 - IONIS PHARMACEUTICALS INC | exhibit21_1.htm |
| EX-10.17 - EXHIBIT 10.17 - IONIS PHARMACEUTICALS INC | exhibit10_17.htm |
| EX-10.10 - EXHIBIT 10.10 - IONIS PHARMACEUTICALS INC | exhibit10_10.htm |
| EX-10.4 - EXHIBIT 10.4 - IONIS PHARMACEUTICALS INC | exhibit10_4.htm |
| EX-4.2 - EXHIBIT 4.2 - IONIS PHARMACEUTICALS INC | exhibit4_2.htm |
| EX-4.1 - EXHIBIT 4.1 - IONIS PHARMACEUTICALS INC | exhibit14_1.htm |
| EX-3.1 - EXHIBIT 3.1 - IONIS PHARMACEUTICALS INC | exhibit3_1.htm |
| 10-K - IONIS PHARMACEUTICALS INC 10-K 12-31-2017 - IONIS PHARMACEUTICALS INC | form10k.htm |
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-71911, 333-90811, 333-38844, 333-71116, 333-71176, 333-89066, 333-89626, 333-128156, 333-130639, 333-134380, 333-141447, 333-151076 and 333-188407) and in the related Prospectuses, as applicable, and in the Registration Statements on Form S-8 (Nos.333-05825, 333-55683, 333-40336, 333-59296, 333-91572, 333-106859, 333-116962, 333-125911, 333-133853, 333-142777, 333-151996, 333-160269, 333-168674, 333-176136, 333-184788, 333-190408 and 333-207900) of Ionis Pharmaceuticals, Inc. of our reports dated February 28, 2018, with respect to the consolidated financial statements of Ionis Pharmaceuticals, Inc. and the effectiveness of internal control over financial reporting of Ionis Pharmaceuticals, Inc. included in this Annual Report (Form 10-K) for the year ended December 31, 2017.
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/s/ ERNST & YOUNG LLP
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San Diego, California
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February 28, 2018
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