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Ionis reports second quarter 2026 financial results and highlights progress on key programs

Key Takeaway: Ionis Pharmaceuticals reported its financial results for Q2 2026, highlighting the approval of TRYNGOLZA, the first treatment aimed at reducing triglycerides and preventing acute pancreatitis in patients with severe hypertriglyceridemia. The company expressed optimism about the early momentum of the product's launch and its potential for revenue growth.

Market Sentiment Analysis

POSITIVE FACTORS

  • Approval of TRYNGOLZA as a new treatment option.
  • Early launch momentum indicates strong market interest.
  • Potential for accelerated growth in revenue.

Full Press Release Details

Ionis reports second quarter 2026 financial results and highlights progress on key programs

- TRYNGOLZA®(olezarsen) demonstrating early sHTG launch momentum, underscoring multi-billion-dollar revenue potential in large patient population –
- Completed enrollment in Phase 3 REVEAL trial in Angelman syndrome -
- On track to achieve 2026 financial guidance -
CARLSBAD, Calif.--(BUSINESS WIRE)--Jul. 29, 2026--Ionis Pharmaceuticals, Inc.(Nasdaq: IONS) (the “Company”) today reported financial results and provided key updates for the second quarter endedJune 30, 2026.
“With the approval of TRYNGOLZA in late June, Ionis is bringing the first and only treatment to reduce triglycerides and acute pancreatitis to people living with severe hypertriglyceridemia. We are encouraged by the early launch momentum and look forward to accelerating growth from TRYNGOLZA and our other wholly owned medicines in the quarters and years to come,” saidBrett P. Monia, Ph.D., chief executive officer of Ionis. “In the second half of this year, we expect multiple important milestones, including approval of zilganersen for Alexander disease, positioning us for our first independent launch from our leading neurology portfolio. We also expect results from the landmark pelacarsen Lp(a) HORIZON cardiovascular outcomes trial and the global launch of bepirovirsen for chronic hepatitisB. Withour advancing pipeline and growing commercial momentum, Ionis is on track to deliver accelerating value to patients and all Ionis stakeholders.”

Second Quarter 2026 Summary Financial Results(1):

| | Three months ended | | Six months ended
| | June 30, | | June 30,
| | 2026 | | 2025 | | 2026 | | 2025
| | (amounts in millions)
Total revenue | | $268 | | $452 | | $514 | | $584
Operating expenses | | $370 | | $312 | | $734 | | $591
Operating expenses on a non-GAAP basis | | $325 | | $282 | | $645 | | $532
Income (loss) from operations | | ($102) | | $140 | | ($220) | | ($7)
Income (loss) from operations on a non-GAAP basis | | ($57) | | $170 | | ($131) | | $52
Three months ended
Six months ended
June 30,
June 30,
2026
2025
2026
2025
(amounts in millions)
Total revenue
$268
$452
$514
$584
Operating expenses
$370
$312
$734
$591
Operating expenses on a non-GAAP basis
$325
$282
$645
$532
Income (loss) from operations
($102)
$140
($220)
($7)
Income (loss) from operations on a non-GAAP basis
($57)
$170
($131)
$52
(1) | Reconciliation of GAAP to non-GAAP basis contained later in this release.
(1)
Reconciliation of GAAP to non-GAAP basis contained later in this release.

Second Quarter 2026 Financial Highlights

• Revenue in the second quarter and first half of 2026 increased by 56% and 69% respectively, compared to the same periods last year, excluding the one-time sapablursen upfront payment recognized in the second quarter of 2025, driven by continued commercial success and substantial R&D revenue from multiple partnerships
• Operating expenses for the second quarter and first half of 2026 were in line with expectations and increased year over year primarily from investments related to the commercialization efforts for TRYNGOLZA and DAWNZERA and launch preparations for zilganersen in Alexander disease
• Ended the second quarter of 2026 with cash and short-term investments of$2.1 billionas ofJune 30, 2026, enabling continued investments to drive value in Ionis’ wholly owned portfolio

Second Quarter 2026 Financial Results

“Our performance in the first half of this year reflects the strength and resilience of our business. We delivered significantly increased commercial revenue from our independent launches, substantial R&D revenue from multiple partnered medicines and invested in our advancing wholly owned pipeline,” saidElizabeth L. Hougen, chief financial officer of Ionis. “Even with the outcome of the CARDIO-TTRansform study of eplontersen in ATTR-CM, our first-half execution and positive outlook for the second half of the year keep us on track to achieve our 2026 financial guidance. We also remain on track to achieve our goal of cashflow breakeven in 2028 and deliver substantial growth and long-term value-creation.”

Recent Highlights - Wholly Owned Medicines

• TRYNGOLZA®(olezarsen), the firstFDA-approved treatment to reduce triglycerides and acute pancreatitis risk in adults with severe hypertriglyceridemia (sHTG) as an adjunct to dietGeneratedU.S. net product sales of$5 millionand$32 millionin the second quarter and first half of 2026, respectivelyDemonstrated continued strong demand inFCS, offset by the reduced net price effectiveApril 1, 2026On track to achieve full year 2026 product sales of$100-110 million, in line with revenues generated in 2025sHTGU.S. launch demonstrating early momentum followingJune 2026approvalFCSlaunch outside theU.S. underway; sHTG marketing application under review in the European Union (EU) with potential launch in 2027Results from the CORE and CORE2 open-label extension study (CORE-OLE) will be presented at theEuropean Society of Cardiology (ESC) CongressinAugust 2026
• DAWNZERA®(donidalorsen), the first and only RNA-targeted prophylactic therapy for hereditary angioedema (HAE) inpatients 12 years of age and olderGeneratedU.S. net product sales of$26 millionand$42 millionin the second quarter and first half of 2026, respectively; second quarter net product sales increased 63% compared to the first quarter of 2026On track to achieve full year 2026 product sales of$110-120 million, representing a continuing driver of year-over-year revenue growthLaunch outside theU.S. underway, with new market approvals in the EU
• Zilganersen on track to launch this year as the first and only medicine to demonstrate clinically meaningful and disease-modifying benefit in children and adults with Alexander disease (AxD), assuming approvalNew Drug Application (NDA) underFDAPriority Review with PDUFA target action date ofSeptember 22, 2026Entered a license agreement with Recordati to develop and commercialize zilganersen outside theU.S.
• Obudanersen, a potential treatment for Angelman syndrome, completed enrollment in the Phase 3 REVEAL study, with data anticipated in the second half of 2027
• ION775, a potential treatment for sHTG, entered a Phase 2 study in people with sHTG and moderately elevated triglycerides (HTG) based on Phase 1 results showing robust triglyceride lowering with potential for extended dosing intervalsResults from the Phase 1 study of ION775 will be presented at ESC inAugust 2026
• GeneratedU.S. net product sales of$5 millionand$32 millionin the second quarter and first half of 2026, respectivelyDemonstrated continued strong demand inFCS, offset by the reduced net price effectiveApril 1, 2026On track to achieve full year 2026 product sales of$100-110 million, in line with revenues generated in 2025
• sHTGU.S. launch demonstrating early momentum followingJune 2026approval
• FCSlaunch outside theU.S. underway; sHTG marketing application under review in the European Union (EU) with potential launch in 2027
• Results from the CORE and CORE2 open-label extension study (CORE-OLE) will be presented at theEuropean Society of Cardiology (ESC) CongressinAugust 2026
• Demonstrated continued strong demand inFCS, offset by the reduced net price effectiveApril 1, 2026
• On track to achieve full year 2026 product sales of$100-110 million, in line with revenues generated in 2025
• GeneratedU.S. net product sales of$26 millionand$42 millionin the second quarter and first half of 2026, respectively; second quarter net product sales increased 63% compared to the first quarter of 2026
• On track to achieve full year 2026 product sales of$110-120 million, representing a continuing driver of year-over-year revenue growth
• Launch outside theU.S. underway, with new market approvals in the EU
• New Drug Application (NDA) underFDAPriority Review with PDUFA target action date ofSeptember 22, 2026
• Entered a license agreement with Recordati to develop and commercialize zilganersen outside theU.S.
• Results from the Phase 1 study of ION775 will be presented at ESC inAugust 2026

Recent Highlights – Partnered Medicines

• SPINRAZA®(nusinersen) for the treatment of spinal muscular atrophy (SMA) generated global sales of$402 millionin the second quarter of 2026, resulting in royalty revenue of$54 million
• WAINUA®(eplontersen) (WAINZUA in EU) for the treatment of adults with polyneuropathy of hereditary transthyretin-mediated amyloidosis (ATTRv-PN) generated global sales of$70 millionin the second quarter of 2026, resulting in royalty revenue of$16 millionGlobal WAINUA ATTRv-PN launches continuing with additional submissions in progress to further expand global WAINUA accessPhase 3 CARDIO-TTRansform study of eplontersen for the treatment of transthyretin-mediated amyloid cardiomyopathy (ATTR-CM) missed the primary composite endpoint in the overall population, demonstrated nominal significance in the pre-specified monotherapy population, and a favorable safety and tolerability profileResults from the CARDIO-TTRansform study will be presented at ESC inAugust 2026
• Bepirovirsen, a potential first-in-class treatment of chronic hepatitis B (CHB), on track for global launch this yearUnder regulatory review in multiple countries, including theU.S., EU,Japan, andChinaGranted Priority Review in theU.S. and PDUFA target action date ofOctober 26, 2026Positive data from the Phase 3 B-Well studies showing unprecedented functional cure rates presented at theEuropean Association for the Studyof theLiver (EASL) Congress2026
• Salanersen, a potential treatment for SMA, entered Phase 3 development and granted Breakthrough Therapy Designation by theFDA, based on positive interim Phase 1 results demonstrating potential to achieve high efficacy with annual dosing
• Sapablursen, a potential treatment for polycythemia vera, entered Phase 3 development based on positive Phase 2 data
• Diranersen (IONIS-MAPTRx/ BIIB080), a potential treatment for Alzheimer’s disease, demonstrated benefit in measures of cognition with favorable safety and tolerability in the Phase 2 CELIA study; Biogen plans to advance diranersen into Phase 3 development
• Global WAINUA ATTRv-PN launches continuing with additional submissions in progress to further expand global WAINUA access
• Phase 3 CARDIO-TTRansform study of eplontersen for the treatment of transthyretin-mediated amyloid cardiomyopathy (ATTR-CM) missed the primary composite endpoint in the overall population, demonstrated nominal significance in the pre-specified monotherapy population, and a favorable safety and tolerability profile
• Results from the CARDIO-TTRansform study will be presented at ESC inAugust 2026
• Under regulatory review in multiple countries, including theU.S., EU,Japan, andChina
• Granted Priority Review in theU.S. and PDUFA target action date ofOctober 26, 2026
• Positive data from the Phase 3 B-Well studies showing unprecedented functional cure rates presented at theEuropean Association for the Studyof theLiver (EASL) Congress2026

Revenue

Ionis’ revenue was comprised of the following:
| | Three months endedJune 30, | | | Six months endedJune 30, |
| | | 2026 | | | | 2025 | | | | 2026 | | | | 2025 |
Revenue: | | (amounts in millions) |
Commercial revenue: | | | | | | | | | | | |
Product sales, net: | | | | | | | | | | | |
TRYNGOLZA sales, net | | $ | 5 | | | $ | 19 | | | $ | 32 | | | $ | 26 |
DAWNZERA sales, net | | | 26 | | | | - | | | | 42 | | | | - |
Total product sales, net | | | 31 | | | | 19 | | | | 74 | | | | 26 |
Royalty revenue: | | | | | | | | | | | |
SPINRAZA royalties | | | 53 | | | | 54 | | | | 97 | | | | 102 |
WAINUA royalties | | | 16 | | | | 10 | | | | 27 | | | | 20 |
Other royalties | | | 7 | | | | 6 | | | | 10 | | | | 12 |
Total royalty revenue | | | 76 | | | | 70 | | | | 134 | | | | 134 |
Other commercial revenue | | | 12 | | | | 14 | | | | 18 | | | | 19 |
Total commercial revenue | | | 119 | | | | 103 | | | | 226 | | | | 179 |
Research and development revenue: | | | | | | | | | | | |
Collaborative agreement revenue | | | 133 | | | | 337 | | | | 254 | | | | 382 |
WAINUA joint development revenue | | | 16 | | | | 12 | | | | 34 | | | | 23 |
Total research and development revenue | | | 149 | | | | 349 | | | | 288 | | | | 405 |
Total revenue | | $ | 268 | | | $ | 452 | | | $ | 514 | | | $ | 584 |
Three months endedJune 30,
Six months endedJune 30,
2026
2025
2026
2025
Revenue:
(amounts in millions)
Commercial revenue:
Product sales, net:
TRYNGOLZA sales, net
$
5
$
19
$
32
$
26
DAWNZERA sales, net
26
-
42
-
Total product sales, net
31
19
74
26
Royalty revenue:
SPINRAZA royalties
53
54
97
102
WAINUA royalties
16
10
27
20
Other royalties
7
6
10
12
Total royalty revenue
76
70
134
134
Other commercial revenue
12
14
18
19

Total commercial revenue

119

103

226

179

Research and development revenue:
Collaborative agreement revenue
133
337
254
382
WAINUA joint development revenue
16
12
34
23

Total research and development revenue

149

349

288

405

Total revenue

$

268

$

452

$

514

$

584

Commercial revenue for the second quarter and first half of 2026 increased 15% and 27%, respectively, compared to the same periods in 2025. This increase was primarily driven by DAWNZERA product sales. Research and development revenue was also higher in the second quarter and first half of 2026, compared to the same periods in 2025, driven by multiple payments for programs advancing under its R&D collaborations, and excluding the$280 millionupfront payment for the global license of sapablursen to Ono Pharmaceutical Co., Ltd. the Company received in the second quarter of 2025.

Operating Expenses

Operating expenses for the second quarter and first half of 2026 increased year over year, in line with expectations, primarily from investments related to the commercialization efforts for TRYNGOLZA and DAWNZERA and launch preparations for zilganersen in Alexander disease, with full-year expenses remaining on track for low-teens percentage growth year-over-year.

Balance Sheet

As ofJune 30, 2026, Ionis’ cash, cash equivalents and short-term investments decreased to$2.1 billion, compared to$2.7 billiononDecember 31, 2025, primarily due to repayment of the 0% convertible notes onApril 1, 2026.

Webcast and Other Updates

Management will host a conference call and webcast to discuss Ionis’ second quarter 2026 results at8:30 a.m. Eastern timeonWednesday, July 29, 2026. Interested parties may access the webcasthere. A webcast replay will be available for a limited time at the same address. To access the Company’s second quarter 2026 earnings slides clickhere.

Ionis’ Marketed Medicines

TRYNGOLZA®(olezarsen):TRYNGOLZA was approved by theU.S. Food and Drug Administrationas an adjunct to diet to reduce triglycerides (TG) and the risk of acute pancreatitis in adults with severe hypertriglyceridemia (sHTG: TG ≥500 mg/dL) and as an adjunct to diet to reduce TG in adults with familial chylomicronemia syndrome (FCS). For more information about TRYNGOLZA, including the fullU.S. Prescribing Information, visittryngolza.com.
DAWNZERA®(donidalorsen):DAWNZERA was approved by theU.S. Food and Drug Administrationfor prophylaxis to prevent attacks of hereditary angioedema (HAE) inadult and pediatric patients 12 years of age and older. For more information about DAWNZERA, including the fullU.S. Prescribing Information, visitdawnzera.com.
WAINUA®(eplontersen):WAINUA was approved by theU.S. Food and Drug Administrationfor the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults. For more information about WAINUA, including the fullU.S. Prescribing Information, visitwainua.com.
For more information about SPINRAZA and QALSODY, visithttps://www.spinraza.com/andhttps://www.qalsody.com/, respectively. QALSODY is approved under accelerated approval based on reduction in plasma neurofilament light chain (NfL) observed in patients treated with QALSODY. Continued approval may be contingent upon verification of clinical benefit in confirmatory trial(s).

About Ionis Pharmaceuticals, Inc.

For more than three decades, Ionis has invented medicines that bring better futures to people with serious diseases. Ionis currently has marketed medicines and a leading pipeline in neurology, cardiometabolic disease and select areas of high patient need. As the pioneer in RNA-targeted medicines, Ionis continues to drive innovation in RNA therapies in addition to advancing new approaches in gene editing. A deep understanding of disease biology and industry-leading technology propels our work, coupled with a passion and urgency to deliver life-changing advances for patients. To learn more about Ionis, visitIonis.comand follow us onX (Twitter),LinkedInandInstagram.

Ionis Forward-looking Statements

This press release includes forward-looking statements regarding Ionis’ business, financial guidance and the therapeutic and commercial potential of our commercial medicines, additional medicines in development, technologies and our expectations regarding development and regulatory milestones. Any statement describing Ionis’ goals, expectations, financial or other projections, intentions or beliefs is a forward-looking statement and should be considered an at-risk statement. Such statements are subject to certain risks and uncertainties including those inherent in the process of discovering, developing and commercializing medicines that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such medicines. Ionis’ forward-looking statements also involve assumptions that, if they never materialize or prove correct, could cause its results to differ materially from those expressed or implied by such forward-looking statements. Although Ionis’ forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Ionis. Except as required by law, we undertake no obligation to update any forward-looking statements for any reason. As a result, you are cautioned not to rely on these forward-looking statements. These and other risks concerning Ionis' programs are described in additional detail in Ionis' annual report on Form 10-K for the year ended December 31, 2025, and most recent Form 10-Q, which are on file with the Securities and Exchange Commission. Copies of these and other documents are available from the Company.
In this press release, unless the context requires otherwise, “Ionis,” “Company,” “we,” “our” and “us” all refer to Ionis Pharmaceuticals and its subsidiaries.
Ionis Pharmaceuticals®is a registered trademark of Ionis Pharmaceuticals, Inc. TRYNGOLZA®is a registered trademark of Ionis Pharmaceuticals, Inc. DAWNZERA®is a trademark of Ionis Pharmaceuticals, Inc. AKCEATMis a trademark of Akcea Therapeutics, Inc. TEGSEDITMis a trademark of Akcea Therapeutics, Inc. WAYLIVRATMis a trademark of Akcea Therapeutics, Inc. SPINRAZA®and QALSODY®are registered trademarks of Biogen. WAINUA®is a registered trademark of the AstraZeneca group of companies.
IONIS PHARMACEUTICALS, INC.SELECTED FINANCIAL INFORMATIONCondensed Consolidated Statements of Operations(In Millions, Except Per Share Data)
| | Three months endedJune 30, | | Six months endedJune 30, |
| | | 2026 | | | | 2025 | | | | 2026 | | | | 2025 |
| | (unaudited)
Revenue: | | | | | | | |
Commercial revenue: | | | | | | | | | |
Product sales, net | | $ | 31 | | | $ | 19 | | | $ | 74 | | | $ | 26 |
Royalty revenue | | | 76 | | | | 70 | | | | 134 | | | | 134 |
Other commercial revenue | | | 12 | | | | 14 | | | | 18 | | | | 19 |
Total commercial revenue | | | 119 | | | | 103 | | | | 226 | | | | 179 |
Research and development revenue: | | | | | | | |
Collaborative agreement revenue | | | 133 | | | | 337 | | | | 254 | | | | 382 |
WAINUA joint development revenue | | | 16 | | | | 12 | | | | 34 | | | | 23 |
Total research and development revenue | | | 149 | | | | 349 | | | | 288 | | | | 405 |
Total revenue | | | 268 | | | | 452 | | | | 514 | | | | 584 |
Expenses: | | | | | | | |
Cost of sales | | | 3 | | | | 4 | | | | 6 | | | | 6 |
Research, development and patent | | | 217 | | | | 217 | | | | 427 | | | | 418 |
Selling, general and administrative | | | 150 | | | | 91 | | | | 301 | | | | 167 |
Total operating expenses | | | 370 | | | | 312 | | | | 734 | | | | 591 |
Income (loss) from operations | | | (102 | ) | | | 140 | | | | (220 | ) | | | (7 | )
Other income (expense): | | | | | | | |
Interest expense related to the sale of future royalties | | | (18 | ) | | | (19 | ) | | | (35 | ) | | | (37 | )
Other income, net | | | 6 | | | | 3 | | | | 49 | | | | 21 |
Income (loss) before income tax benefit (expense) | | | (114 | ) | | | 124 | | | | (206 | ) | | | (23 | )
Income tax benefit (expense) | | | (1 | ) | | | - | | | | (1 | ) | | | - |
Net income (loss) | | ($ | 115 | ) | | $ | 124 | | | ($ | 207 | ) | | ($ | 23 | )
Basic net income (loss) per share | | ($ | 0.69 | ) | | $ | 0.78 | | | ($ | 1.25 | ) | | ($ | 0.15 | )
Diluted net income (loss) per share | | ($ | 0.69 | ) | | $ | 0.70 | | | ($ | 1.25 | ) | | ($ | 0.15 | )
Shares used in computing basic net income (loss) per share | | | 165 | | | | 159 | | | | 165 | | | | 159 |
Shares used in computing diluted net income (loss) per share | | | 165 | | | | 182 | | | | 165 | | | | 159 |

IONIS PHARMACEUTICALS, INC.

SELECTED FINANCIAL INFORMATION

Condensed Consolidated Statements of Operations

(In Millions, Except Per Share Data)

Three months endedJune 30,
Six months endedJune 30,
2026
2025
2026
2025
(unaudited)
Revenue:
Commercial revenue:
Product sales, net
$
31
$
19
$
74
$
26
Royalty revenue
76
70
134
134
Other commercial revenue
12
14
18
19
Total commercial revenue
119
103
226
179
Research and development revenue:
Collaborative agreement revenue
133
337
254
382
WAINUA joint development revenue
16
12
34
23
Total research and development revenue
149
349
288
405
Total revenue
268
452
514
584
Expenses:
Cost of sales
3
4
6
6
Research, development and patent
217
217
427
418
Selling, general and administrative
150
91
301
167
Total operating expenses
370
312
734
591
Income (loss) from operations
(102
)
140
(220
)
(7
)
Other income (expense):
Interest expense related to the sale of future royalties
(18
)
(19
)
(35
)
(37
)
Other income, net
6
3
49
21
Income (loss) before income tax benefit (expense)
(114
)
124
(206
)
(23
)
Income tax benefit (expense)
(1
)
-
(1
)
-
Net income (loss)
($
115
)
$
124
($
207
)
($
23
)
Basic net income (loss) per share
($
0.69
)
$
0.78
($
1.25
)
($
0.15
)
Diluted net income (loss) per share
($
0.69
)
$
0.70
($
1.25
)
($
0.15
)
Shares used in computing basic net income (loss) per share
165
159
165
159
Shares used in computing diluted net income (loss) per share
165
182
165
159
IONIS PHARMACEUTICALS, INC.Reconciliation of GAAP to Non-GAAP Basis:Condensed Consolidated Operating Expenses, Income (Loss) From Operations, and Net Income (Loss)(In Millions)
| | Three months endedJune 30, | | Six months endedJune 30,
| | | 2026 | | | | 2025 | | | | 2026 | | | | 2025 |
| | (unaudited)
As reported cost of sales according to GAAP | | $ | 3 | | | $ | 4 | | | $ | 6 | | | $ | 6 |
Excluding compensation expense related to equity awards (1) | | | - | | | | - | | | | - | | | | - |
Non-GAAP cost of sales | | $ | 3 | | | $ | 4 | | | $ | 6 | | | $ | 6 |
As reported research, development and patent expenses according to GAAP | | $ | 217 | | | $ | 217 | | | $ | 427 | | | $ | 418 |
Excluding compensation expense related to equity awards | | | (25 | ) | | | (20 | ) | | | (50 | ) | | | (40 | )
Non-GAAP research, development and patent expenses | | $ | 192 | | | $ | 197 | | | $ | 377 | | | $ | 378 |
As reported selling, general and administrative expenses according to GAAP | | $ | 150 | | | $ | 91 | | | $ | 301 | | | $ | 167 |
Excluding compensation expense related to equity awards | | | (20 | ) | | | (10 | ) | | | (39 | ) | | | (19 | )
Non-GAAP selling, general and administrative expenses | | $ | 130 | | | $ | 81 | | | $ | 262 | | | $ | 148 |
As reported operating expenses according to GAAP | | $ | 370 | | | $ | 312 | | | $ | 734 | | | $ | 591 |
Excluding compensation expense related to equity awards | | | (45 | ) | | | (30 | ) | | | (89 | ) | | | (59 | )
Non-GAAP operating expenses | | $ | 325 | | | $ | 282 | | | $ | 645 | | | $ | 532 |
As reported income (loss) from operations according to GAAP | | ($ | 102 | ) | | $ | 140 | | | ($ | 220 | ) | | ($ | 7 | )
Excluding compensation expense related to equity awards | | | (45 | ) | | | (30 | ) | | | (89 | ) | | | (59 | )
Non-GAAP income (loss) from operations | | ($ | 57 | ) | | $ | 170 | | | ($ | 131 | ) | | $ | 52 |
As reported net income (loss) according to GAAP | | ($ | 115 | ) | | $ | 124 | | | ($ | 207 | ) | | ($ | 23 | )
Excluding compensation expense related to equity awards and related tax effects | | | (45 | ) | | | (30 | ) | | | (89 | ) | | | (59 | )
Non-GAAP net income (loss) | | ($ | 70 | ) | | $ | 154 | | | ($ | 118 | ) | | $ | 36 |

IONIS PHARMACEUTICALS, INC.

Reconciliation of GAAP to Non-GAAP Basis:

Condensed Consolidated Operating Expenses, Income (Loss) From Operations, and Net Income (Loss)

(In Millions)

Three months endedJune 30,
Six months endedJune 30,
2026
2025
2026
2025
(unaudited)

As reported cost of sales according to GAAP

$
3
$
4
$
6
$
6
Excluding compensation expense related to equity awards (1)
-
-
-
-

Non-GAAP cost of sales

$
3
$
4
$
6
$
6

As reported research, development and patent expenses according to GAAP

$
217
$
217
$
427
$
418
Excluding compensation expense related to equity awards
(25
)
(20
)
(50
)
(40
)

Non-GAAP research, development and patent expenses

$
192
$
197
$
377
$
378

As reported selling, general and administrative expenses according to GAAP

$
150
$
91
$
301
$
167
Excluding compensation expense related to equity awards
(20
)
(10
)
(39
)
(19
)

Non-GAAP selling, general and administrative expenses

$
130
$
81
$
262
$
148

As reported operating expenses according to GAAP

$
370
$
312
$
734
$
591
Excluding compensation expense related to equity awards
(45
)
(30
)
(89
)
(59
)

Non-GAAP operating expenses

$
325
$
282
$
645
$
532

As reported income (loss) from operations according to GAAP

($
102
)
$
140
($
220
)
($
7
)
Excluding compensation expense related to equity awards
(45
)
(30
)
(89
)
(59
)

Non-GAAP income (loss) from operations

($
57
)
$
170
($
131
)
$
52

As reported net income (loss) according to GAAP

($
115
)
$
124
($
207
)
($
23
)
Excluding compensation expense related to equity awards and related tax effects
(45
)
(30
)
(89
)
(59
)

Non-GAAP net income (loss)

($
70
)
$
154
($
118
)
$
36
(1) | Amounts appear as zero due to rounding in millions.
(1)
Amounts appear as zero due to rounding in millions.

Reconciliation of GAAP to Non-GAAP Basis

As illustrated in the Selected Financial Information in this press release, non-GAAP operating expenses, non-GAAP income (loss) from operations, and non-GAAP net income (loss) were adjusted from GAAP to exclude compensation expense related to equity awards and the related tax effects. Compensation expense related to equity awards are non-cash. These measures are provided as supplementary information and are not a substitute for financial measures calculated in accordance with GAAP. Ionis reports these non-GAAP results to better enable financial statement users to assess and compare its historical performance and project its future operating results and cash flows. Further, the presentation of Ionis’ non-GAAP results is consistent with how Ionis’ management internally evaluates the performance of its operations.
IONIS PHARMACEUTICALS, INC.Condensed Consolidated Balance Sheets(In Millions)
| | June 30, | | December 31,
| | | 2026 | | | | 2025 |
| | (unaudited) | | |
Assets: | | | | | |
Cash, cash equivalents and short-term investments | | $ | 2,055 | | | $ | 2,677 |
Contracts receivable | | | 59 | | | | 66 |
Other current assets | | | 378 | | | | 247 |
Property, plant and equipment, net | | | 155 | | | | 123 |
Right-of-use assets | | | 232 | | | | 239 |
Other assets | | | 116 | | | | 172 |
Total assets | | $ | 2,995 | | | $ | 3,524 |
Liabilities and stockholders’ equity: | | | | | |
Current portion of deferred contract revenue | | $ | 74 | | | $ | 74 |
0% convertible senior notes dueApril 2026, net – current | | | - | | | | 432 |
Other current liabilities | | | 242 | | | | 277 |
0% convertible senior notes due 2030, net | | | 753 | | | | 751 |
1.75% convertible senior notes due 2028, net | | | 569 | | | | 568 |
Liability related to sale of future royalties, net | | | 563 | | | | 551 |
Long-term lease liabilities | | | 262 | | | | 262 |
Long-term obligations, less current portion | | | 29 | | | | 28 |
Long-term deferred contract revenue | | | 63 | | | | 92 |
Total stockholders’ equity | | | 440 | | | | 489 |
Total liabilities and stockholders’ equity | | $ | 2,995 | | | $ | 3,524 |

IONIS PHARMACEUTICALS, INC.

Condensed Consolidated Balance Sheets

(In Millions)

June 30,
December 31,
2026
2025
(unaudited)
Assets:
Cash, cash equivalents and short-term investments
$
2,055
$
2,677
Contracts receivable
59
66
Other current assets
378
247
Property, plant and equipment, net
155
123
Right-of-use assets
232
239
Other assets
116
172
Total assets
$
2,995
$
3,524
Liabilities and stockholders’ equity:
Current portion of deferred contract revenue
$
74
$
74
0% convertible senior notes dueApril 2026, net – current
-
432
Other current liabilities
242
277
0% convertible senior notes due 2030, net
753
751
1.75% convertible senior notes due 2028, net
569
568
Liability related to sale of future royalties, net
563
551
Long-term lease liabilities
262
262
Long-term obligations, less current portion
29
28
Long-term deferred contract revenue
63
92
Total stockholders’ equity
440
489
Total liabilities and stockholders’ equity
$
2,995
$
3,524

Key 2026 Value Driving Events(1)

New Product Launches
Program | Indication | Location | Status
DAWNZERA | HAE | EU | Achieved
Olezarsen | sHTG | U.S. | Achieved
Zilganersen | Alexander disease | U.S. | •
Bepirovirsen | CHB | U.S. &Japan | •

New Product Launches

Program

Indication

Location

Status

DAWNZERA
HAE
EU
Achieved
Olezarsen
sHTG
U.S.
Achieved
Zilganersen
Alexander disease
U.S.
Bepirovirsen
CHB
U.S. &Japan
Regulatory Actions
Program | Indication | Regulatory Action | Status
Donidalorsen | HAE | EU approval decision | Achieved
Olezarsen | sHTG | U.S. approval decision | Achieved
EU approval decision | •
Zilganersen | Alexander disease | U.S. submission | Achieved
U.S. approval decision | •
Nusinersen(high dose) | SMA | EU approval decision | Achieved
U.S. approval decision | Achieved
Eplontersen | ATTR-CM | Regulatory submission(s) | •
Bepirovirsen | CHB | Regulatory submission(s) | Achieved
Regulatory decision(s) | •
Pelacarsen | Lp(a)- CVD | U.S. submission | •

Regulatory Actions

Program

Indication

Regulatory Action

Status

Donidalorsen
HAE
EU approval decision
Achieved
Olezarsen
sHTG
U.S. approval decision
Achieved
EU approval decision
Zilganersen
Alexander disease
U.S. submission
Achieved
U.S. approval decision
Nusinersen
(high dose)
SMA
EU approval decision
Achieved
U.S. approval decision
Achieved
Eplontersen
ATTR-CM
Regulatory submission(s)
Bepirovirsen
Regulatory submission(s)
Achieved
Regulatory decision(s)
Pelacarsen
Lp(a)- CVD
U.S. submission
Key Phase 3 Clinical Events
Program | Indication | Event | Status
Obudanersen | Angelman syndrome | REVEAL fully enrolled | Achieved
Bepirovirsen | HBV | B-Well data | Achieved
Pelacarsen | Lp(a)-CVD | Lp(a) HORIZON data | •
Eplontersen | ATTR-CM | CARDIO-TTRansform data | Not Achieved
Sefaxersen | IgAN | IMAGINATION data | •
Ulefnersen | FUS-ALS | FUSION data | •
Salanersen | SMA | Phase 3 initiation | Achieved
Sapablursen | Polycythemia Vera | Phase 3 initiation | Achieved

Key Phase 3 Clinical Events

Program

Indication

Event

Status

Obudanersen
Angelman syndrome
REVEAL fully enrolled
Achieved
Bepirovirsen
HBV
B-Well data
Achieved
Pelacarsen
Lp(a)-CVD
Lp(a) HORIZON data
Eplontersen
ATTR-CM
CARDIO-TTRansform data
Not Achieved
Sefaxersen
IgAN
IMAGINATION data
Ulefnersen
FUS-ALS
FUSION data
Salanersen
SMA
Phase 3 initiation
Achieved
Sapablursen
Polycythemia Vera
Phase 3 initiation
Achieved
Key Phase 2 Clinical Events
Program | Indication | Event | Status
Diranersen | Alzheimer’s disease | Phase 2 CELIA data | Achieved
Tominersen | Huntington’s disease | Phase 2 data | Not Achieved
Tonlamarsen | Acute Severe Hypertension | Phase 2 data | Achieved

Key Phase 2 Clinical Events

Program

Indication

Event

Status

Diranersen
Alzheimer’s disease
Phase 2 CELIA data
Achieved
Tominersen
Huntington’s disease
Phase 2 data
Not Achieved
Tonlamarsen
Acute Severe Hypertension
Phase 2 data
Achieved
(1) | Timing expectations based on current assumptions and subject to change.
(1)
Timing expectations based on current assumptions and subject to change.
Indicates that the milestone is anticipated in 2026.
• Indicates that the milestone is anticipated in 2026.
View source version onbusinesswire.com:https://www.businesswire.com/news/home/20260729215124/en/

Ionis Investor Contact:D. Wade Walke, Ph.D.IR@ionis.com760-603-2331

Ionis Media Contact:Hayley Soffermedia@ionis.com760-603-4679

Source:Ionis Pharmaceuticals, Inc.

Frequently Asked Questions

What is TRYNGOLZA?

TRYNGOLZA is the first treatment approved to reduce triglycerides and prevent acute pancreatitis.

When did Ionis report its Q2 2026 results?

Ionis reported its Q2 2026 financial results on June 30, 2026.

What are the key highlights from Ionis's Q2 report?

Key highlights include the approval of TRYNGOLZA and positive early launch momentum.

What condition does TRYNGOLZA target?

TRYNGOLZA targets severe hypertriglyceridemia.

Last updated: Jul 29, 2026