What is the current annual total debt of IONS?

As of today, IONS annual total debt is $2.61B

What is 1-year change in IONS annual total debt?

IONS annual total debt is up +33.47% year-over-year

What is 3-year change in IONS annual total debt?

IONS annual total debt is up +90.94% over the past 3 years

How far is IONS annual total debt from its all-time high?

IONS annual total debt is currently at its all-time high

How does IONS annual total debt rank versus sector peers?

IONS annual total debt is higher than 92.76% of companies in Healthcare sector

When is IONS next annual earnings release?

As of today, the next annual earnings release for IONS has not been scheduled

What is the current quarterly total debt of IONS?

As of today, IONS quarterly total debt is $2.19B

What is IONS quarterly total debt most recent change?

IONS quarterly total debt was down -16.12% on June 30, 2026

What is 1-year change in IONS quarterly total debt?

IONS quarterly total debt is up +10.85% year-over-year

How far is IONS quarterly total debt from its all-time high?

IONS quarterly total debt is currently -16.27% below its historical high of $2.61B set on December 31, 2025

How does IONS quarterly total debt rank versus sector peers?

IONS quarterly total debt is higher than 92.41% of companies in Healthcare sector

When is IONS next earnings release?

The next earnings release for IONS is on November 4, 2026

IONS Total Debt History & Chart Since 1990

Annual Total Debt

$2.61B$655.54M+33.47%

December 31, 2025

Summary

Current Value: As of today, IONS annual total debt is $2.61B, up +33.47% on December 31, 2025
Historical Performance: IONS annual total debt is up +90.94% over the past 3 years, up +178.23% over the past 5 years
All-Time High Comparison: IONS annual total debt is currently at its all-time high
3-Year Low Comparison: IONS annual total debt is +90.94% above its 3-year low of $1.37B reached on an earlier date
Sector Comparison: IONS annual total debt is higher than 92.76% of companies in Healthcare sector

Total Debt Chart

beforeafter

Performance

IONS Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Total Debt	Dec 31, 25	$2.61B	+33.5%	+90.9%	+178.2%	+1712.2%
Quarterly Total Debt	Jun 30, 26	$2.19B	+10.8%	+8.9%	+67.0%	+961.8%
Price	Aug 7, 26	$56.56	+37.8%	+44.6%	+45.8%	+612.3%
	Dec 31, 25	$1.38B	-29.2%	+1.4%	+121.5%	+896.3%
	Dec 31, 25	$1.18B	+10000.0%	+10000.0%	+274.2%	+10000.0%
	Dec 31, 25	$3.03B	+25.6%	+54.8%	+84.3%	+892.0%
	Dec 31, 25	$489.09M	-16.9%	-14.6%	-34.2%	+100.0%
Annual Debt To Equity	Dec 31, 25	5.24	+57.4%	+119.3%	+315.9%	+788.1%

Total Debt Highs

IONS Annual Total Debt Highs Comparison
Period	High	Date	Current
3Y	$2.61B	Dec 31, 25	at high
5Y	$2.61B	Dec 31, 25	at high
All	$2.61B	Dec 31, 25	at high

Total Debt Lows

IONS Annual Total Debt Lows Comparison
Period	Low	Date	Current
3Y	$1.37B	N/A	+90.9%
5Y	$939.64M	N/A	+178.2%
All	$1.20M	Dec 31, 90	>+9999.0%

Total Debt History

Year	Value	Change
2025	$2.61B	+33.5%
2024	$1.96B	-0.4%
2023	$1.97B	+43.7%
2022	$1.37B	+9.4%
2021	$1.25B	+33.1%
2020	$939.64M	+19.3%
2019	$787.53M	+21.8%
2018	$646.72M	+6.5%
2017	$607.48M	+3.1%
2016	$589.11M	+24.6%
2015	$472.96M	+3.3%
2014	$457.78M	+96.8%
2013	$232.57M	+2.5%
2012	$226.82M	+52.3%
2011	$148.96M	+3.3%
2010	$144.26M	+2.4%
2009	$140.85M	-19.3%
2008	$174.50M	+2.6%

Year	Value	Change
2007	$170.10M	+21.2%
2006	$140.34M	-5.0%
2005	$147.75M	-40.2%
2004	$247.16M	+7.5%
2003	$229.87M	+7.3%
2002	$214.33M	+58.1%
2001	$135.55M	+26.8%
2000	$106.86M	+17.2%
1999	$91.15M	+12.1%
1998	$81.31M	+38.5%
1997	$58.70M	+124.9%
1996	$26.10M	+168.5%
1995	$9.72M	-17.0%
1994	$11.72M	-14.7%
1993	$13.74M	+55.0%
1992	$8.87M	+48.0%
1991	$5.99M	+399.3%
1990	$1.20M	-

FAQ

What is the current annual total debt of IONS?: As of today, IONS annual total debt is $2.61B
What is 1-year change in IONS annual total debt?: IONS annual total debt is up +33.47% year-over-year
What is 3-year change in IONS annual total debt?: IONS annual total debt is up +90.94% over the past 3 years
How far is IONS annual total debt from its all-time high?: IONS annual total debt is currently at its all-time high
How does IONS annual total debt rank versus sector peers?: IONS annual total debt is higher than 92.76% of companies in Healthcare sector
When is IONS next annual earnings release?: As of today, the next annual earnings release for IONS has not been scheduled

Total Debt Formula

Total Debt = +

Quarterly Total Debt

$2.19B$420.62M-16.12%

June 30, 2026

Summary

Current Value: As of today, IONS quarterly total debt is $2.19B, down -16.12% on June 30, 2026
Historical Performance: IONS quarterly total debt is up +10.85% year-over-year, up +8.94% over the past 3 years
All-Time High Comparison: IONS quarterly total debt is currently -16.27% below its historical high of $2.61B set on December 31, 2025
3-Year Low Comparison: IONS quarterly total debt is +11.78% above its 3-year low of $1.96B reached on March 31, 2025
Sector Comparison: IONS quarterly total debt is higher than 92.41% of companies in Healthcare sector

Performance

IONS Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Total Debt	Jun 30, 26	$2.19B	-16.1%	+10.8%	+8.9%	+67.0%
Annual Total Debt	Dec 31, 25	$2.61B	–	+33.5%	+90.9%	+178.2%
Price	Aug 7, 26	$56.56	-25.6%	+37.8%	+44.6%	+45.8%
	Jun 30, 26	$2.18B	+0.5%	+63.5%	+8.8%	+75.4%
	Jun 30, 26	$12.92M	-97.1%	-98.0%	+45.2%	-81.5%
	Jun 30, 26	$2.55B	-13.7%	+8.6%	+0.5%	+33.5%
	Jun 30, 26	$439.74M	-10.5%	-30.4%	+2.7%	-24.5%
Quarterly Debt To Equity	Jun 30, 26	4.98	-6.2%	+59.1%	+6.2%	+121.3%

Quarterly Total Debt Highs

IONS Quarterly Total Debt Highs Comparison
Period	High	Date	Current
1Y	$2.61B	Dec 31, 25	-16.3%
3Y	$2.61B	Dec 31, 25	-16.3%
5Y	$2.61B	Dec 31, 25	-16.3%
All	$2.61B	Dec 31, 25	-16.3%

Quarterly Total Debt Lows

IONS Quarterly Total Debt Lows Comparison
Period	Low	Date	Current
1Y	$1.97B	N/A	+10.8%
3Y	$1.96B	Mar 31, 25	+11.8%
5Y	$1.25B	Dec 31, 21	+75.0%
All	$0.00	Mar 31, 90	N/A

Quarterly Total Debt History

Month	Value	Change
Jun 2026	$2.19B	-16.1%
Mar 2026	$2.61B	-0.2%
Dec 2025	$2.61B	+27.6%
Sep 2025	$2.05B	+3.7%
Jun 2025	$1.97B	+0.8%
Mar 2025	$1.96B	-0.0%
Dec 2024	$1.96B	-1.3%
Sep 2024	$1.98B	+0.4%
Jun 2024	$1.98B	+0.4%
Mar 2024	$1.97B	+0.1%
Dec 2023	$1.97B	-0.4%
Sep 2023	$1.97B	-1.7%
Jun 2023	$2.01B	+7.2%
Mar 2023	$1.87B	+36.9%
Dec 2022	$1.37B	+9.1%
Sep 2022	$1.25B	+0.1%
Jun 2022	$1.25B	+0.1%
Mar 2022	$1.25B	+0.1%
Dec 2021	$1.25B	-4.3%
Sep 2021	$1.31B	-0.3%
Jun 2021	$1.31B	+39.4%
Mar 2021	$940.42M	+0.1%
Dec 2020	$939.64M	+14.5%
Sep 2020	$820.66M	+1.4%
Jun 2020	$809.20M	+1.3%
Mar 2020	$798.79M	+1.4%
Dec 2019	$787.53M	+16.8%
Sep 2019	$674.33M	-0.4%
Jun 2019	$677.20M	+1.4%
Mar 2019	$668.08M	+3.3%
Dec 2018	$646.72M	+1.3%
Sep 2018	$638.62M	+2.0%
Jun 2018	$625.84M	+1.9%
Mar 2018	$614.42M	+1.1%
Dec 2017	$607.48M	+1.6%
Sep 2017	$597.65M	-1.1%
Jun 2017	$604.13M	+1.4%
Mar 2017	$595.91M	+1.2%
Dec 2016	$589.11M	+18.9%
Sep 2016	$495.27M	+2.1%
Jun 2016	$484.99M	+1.3%
Mar 2016	$478.90M	-0.5%
Dec 2015	$481.16M	+1.9%
Sep 2015	$472.07M	+1.1%
Jun 2015	$466.90M	+1.0%
Mar 2015	$462.27M	+1.0%
Dec 2014	$457.78M	+95.0%
Sep 2014	$234.76M	+0.4%
Jun 2014	$233.92M	+0.3%
Mar 2014	$233.23M	+0.3%
Dec 2013	$232.57M	+0.8%
Sep 2013	$230.84M	+0.3%
Jun 2013	$230.24M	+1.3%
Mar 2013	$227.27M	+0.2%
Dec 2012	$226.82M	+0.2%
Sep 2012	$226.46M	-2.0%
Jun 2012	$231.05M	+53.8%
Mar 2012	$150.26M	+0.9%
Dec 2011	$148.96M	-31.4%
Sep 2011	$217.02M	+5.3%
Jun 2011	$206.17M	+32.8%
Mar 2011	$155.19M	+7.6%
Dec 2010	$144.26M	-4.1%
Sep 2010	$150.47M	+0.5%
Jun 2010	$149.65M	+2.8%
Mar 2010	$145.63M	+3.4%
Dec 2009	$140.85M	+0.7%
Sep 2009	$139.90M	+3.6%
Jun 2009	$135.10M	+0.9%
Mar 2009	$133.96M	-23.2%
Dec 2008	$174.50M	+3.9%
Sep 2008	$167.98M	-2.1%
Jun 2008	$171.58M	+1.9%

Month	Value	Change
Mar 2008	$168.36M	-1.0%
Dec 2007	$170.10M	-1.2%
Sep 2007	$172.18M	-1.1%
Jun 2007	$174.03M	-32.2%
Mar 2007	$256.70M	+82.9%
Dec 2006	$140.34M	-1.5%
Sep 2006	$142.42M	-1.0%
Jun 2006	$143.92M	-1.3%
Mar 2006	$145.81M	-1.3%
Dec 2005	$147.75M	-1.6%
Sep 2005	$150.16M	-40.8%
Jun 2005	$253.54M	+0.2%
Mar 2005	$253.03M	+2.4%
Dec 2004	$247.16M	+3.2%
Sep 2004	$239.40M	+2.2%
Jun 2004	$234.29M	+1.9%
Mar 2004	$229.91M	+0.0%
Dec 2003	$229.87M	+6.4%
Sep 2003	$216.09M	+2.6%
Jun 2003	$210.55M	-4.5%
Mar 2003	$220.55M	+2.9%
Dec 2002	$214.33M	+13.2%
Sep 2002	$189.31M	-6.0%
Jun 2002	$201.40M	+40.4%
Mar 2002	$143.47M	+5.8%
Dec 2001	$135.55M	+3.4%
Sep 2001	$131.09M	+2.1%
Jun 2001	$128.43M	+18.0%
Mar 2001	$108.86M	+1.9%
Dec 2000	$106.86M	+7.0%
Sep 2000	$99.87M	+1.7%
Jun 2000	$98.23M	+3.3%
Mar 2000	$95.07M	+4.3%
Dec 1999	$91.15M	+1.6%
Sep 1999	$89.75M	+4.4%
Jun 1999	$85.95M	+4.1%
Mar 1999	$82.56M	+1.5%
Dec 1998	$81.31M	+6.8%
Sep 1998	$76.16M	+2.8%
Jun 1998	$74.09M	+25.7%
Mar 1998	$58.94M	+0.2%
Dec 1997	$58.80M	+65.2%
Sep 1997	$35.60M	+1.4%
Jun 1997	$35.10M	+36.0%
Mar 1997	$25.80M	-1.1%
Dec 1996	$26.10M	+158.4%
Sep 1996	$10.10M	+2.0%
Jun 1996	$9.90M	-4.8%
Mar 1996	$10.40M	+7.2%
Dec 1995	$9.70M	-2.0%
Sep 1995	$9.90M	-4.8%
Jun 1995	$10.40M	-5.5%
Mar 1995	$11.00M	-6.0%
Dec 1994	$11.70M	-4.1%
Sep 1994	$12.20M	+0.8%
Jun 1994	$12.10M	-6.2%
Mar 1994	$12.90M	-5.8%
Dec 1993	$13.70M	+23.4%
Sep 1993	$11.10M	+14.4%
Jun 1993	$9.70M	+9.0%
Mar 1993	$8.90M	-30.5%
Dec 1992	$12.80M	-3.0%
Sep 1992	$13.20M	+8.2%
Jun 1992	$12.20M	+14.0%
Mar 1992	$10.70M	+78.3%
Dec 1991	$6.00M	-7.7%
Sep 1991	$6.50M	+6.6%
Jun 1991	$6.10M	+335.7%
Mar 1991	$1.40M	+16.7%
Dec 1990	$1.20M	>+9,900.0%
Sep 1990	$0.00	0.0%
Jun 1990	$0.00	0.0%
Mar 1990	$0.00	-

FAQ

What is the current quarterly total debt of IONS?: As of today, IONS quarterly total debt is $2.19B
What is IONS quarterly total debt most recent change?: IONS quarterly total debt was down -16.12% on June 30, 2026
What is 1-year change in IONS quarterly total debt?: IONS quarterly total debt is up +10.85% year-over-year
How far is IONS quarterly total debt from its all-time high?: IONS quarterly total debt is currently -16.27% below its historical high of $2.61B set on December 31, 2025
How does IONS quarterly total debt rank versus sector peers?: IONS quarterly total debt is higher than 92.41% of companies in Healthcare sector
When is IONS next earnings release?: The next earnings release for IONS is on November 4, 2026

Total Debt Formula

Total Debt = +

Data Sources & References

IONS Official Website www.ionis.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/874015/000087401526000115/0000874015-26-000115-index.htm
IONS Profile on Yahoo Finance finance.yahoo.com/quote/IONS
IONS Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/ions