IONS Ionis Pharmaceuticals, Inc. - Common Stock

NASDAQ · Biotechnology · View on SEC EDGAR ↗
$60.35
Price · Aug 24, 2026
Fundamentals as of Jul 29, 2026

IONS Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

Price
$60.34
Market Cap
$9.85B
P/E (TTM)
-25.4
EPS (TTM)
$-2.38
Revenue (TTM)
Div Yield
ROE
-68.1%
Debt/Equity
3.6
52W Range
$42 – $87

IONS Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

10-Year Performance Revenue, net income, margins and EPS trends

Revenue & Net Income
2-point trend, +46.5%
2016-12-31 2017-12-31
EPS $-2.38
10-point trend, -376.0%
2016-12-31 2025-12-31
Free Cash Flow $-320M
10-point trend, -168.5%
2016-12-31 2025-12-31
Margins

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric
5Y trend
IONS
Peer Median
P/E (TTM)
5-point trend, +78.2%
-25.4
16.0
P/S (TTM)
5-point trend, +158.2%
10.4
32.5
P/B
5-point trend, +374.4%
20.1
3.9
EV / EBITDA
4-point trend, -183.2%
-23.4
Price / FCF
5-point trend, -117.7%
-30.8

Profitability Gross, operating and net margins; ROE, ROA, ROIC

Metric
5Y trend
IONS
Peer Median
ROA
5-point trend, -925.4%
-11.7%
-22.2%
ROE
5-point trend, -1700.5%
-68.1%
-37.6%
ROIC
5-point trend, -344.0%
-17.1%

Financial Health Debt, liquidity, solvency — balance sheet strength

Metric
5Y trend
IONS
Peer Median
Debt / Equity
4-point trend, +75.3%
3.6
0.0
Current Ratio
5-point trend, -60.7%
3.8
5.7
Quick Ratio
5-point trend, -5.2%
3.4

Growth Revenue, EPS and net income growth: YoY, 3Y CAGR, 5Y CAGR

Metric
5Y trend
IONS
Peer Median

Per Share Metrics EPS, book value per share, cash flow per share, dividend per share

Metric
5Y trend
IONS
Peer Median
EPS (Diluted)
5-point trend, -1090.0%
$-2.38

Capital Efficiency Asset turnover, inventory turnover, receivables turnover

Metric
5Y trend
IONS
Peer Median

IONS Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

BUY 31 analysts
  • Strong Buy 8 25.8%
  • Buy 17 54.8%
  • Hold 6 19.4%
  • Sell 0 0.0%
  • Strong Sell 0 0.0%

12-Month Price Target

21 analysts · 2026-08-18
Median target $90.00 +49.1%
Mean target $89.33 +48.0%

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

Avg Surprise
0.42%
Period EPS Actual EPS Est Surprise
June 30, 2026 $-0.69 $-1.09 0.40%
March 31, 2026 $-0.56 $-0.93 0.37%
Dec. 31, 2025 $-1.41 $-1.35 -0.06%
Sept. 30, 2025 $-0.80 $-1.26 0.46%
June 30, 2025 $0.70 $-0.44 1.1%
March 31, 2025 $-0.93 $-1.14 0.21%

Peer comparison (GICS sub-industry) Key metrics vs sector peers

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
IONS $12.92B -33.2 -68.1%
CYTK $7.81B -9.7 376.6% -891.6% 152.7%
PRAX $7.43B -21.9 249.5% -47.3%
APGE $5.16B -17.9
SMMT $13.56B -12.1 -235.1%
KRYS $7.20B 36.0 33.9% 52.6% 18.1%
PTGX $5.47B -42.6 -89.4% -282.8% -20.3%
KYMR $6.33B -21.1 -16.7% -794.0% -24.4%
SYRE $2.56B 10.1 -62.0% -26.5%
PCVX $6.05B -8.2 -26.6%
TWST $1.71B -21.6 20.3% -20.6% -17.0%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

Income Statement 16
Annual Income Statement data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Revenue 4-point trend, +137.0% · · · · · · · · $508M $347M $284M $214M
Cost of Revenue 10-point trend, +15909000.00 $16M $11M $9M $14M $11M $12M $4M $2M $0 $0 · ·
R&D Expense 11-point trend, +283.3% $916M $902M $900M · $638M $531M $462M $412M $372M $340M $320M $239M
SG&A Expense 12-point trend, +1855.6% $394M $267M $233M $150M $186M $354M $287M $245M $108M $49M $37M $20M
Operating Expenses 12-point trend, +406.1% $1.33B $1.18B $1.14B $998M $841M $901M $757M $661M $483M $393M $359M $262M
Operating Income 12-point trend, -699.7% $-382M $-475M $-354M $-410M $-30M $-172M $366M $-61M $31M $-20M $-76M $-48M
Interest Expense 12-point trend, -22.3% $17M $17M $13M $8M $9M $10M $12M $45M $45M $39M $37M $22M
Other Non-op 10-point trend, -15358000.00 $-15M $1M $14M $-7M $-10M $-62.0K $-686.0K $-182.0K $-4M $0 · ·
Pretax Income 12-point trend, -597.9% $-380M $-460M $-334M $-258M $-29M $-135M $339M $-76M $-17M $-57M $-88M $-54M
Income Tax 12-point trend, +111.6% $2M $-6M $32M $12M $-551.0K $345M $52M $-291M $-6M $3M $372.0K $-15M
Net Income 12-point trend, -878.3% $-381M $-454M $-366M $-270M $-29M $-444M $278M $274M $346.0K $-60M $-88M $-39M
EPS (Basic) 11-point trend, -221.6% $-2.38 $-3.04 $-2.56 $-1.90 $-0.20 $-3.18 $2.00 $2.09 $0.15 $-0.50 $-0.74 ·
EPS (Diluted) 11-point trend, -221.6% $-2.38 $-3.04 $-2.56 $-1.90 $-0.20 $-3.18 $1.90 $2.07 $0.15 $-0.50 $-0.74 ·
Shares (Basic) 11-point trend, +33.7% 160,010,000 149,514,000 143,190,000 141,848,000 141,021,000 139,612,000 139,998,000 132,320,000 124,016,000 120,933,000 119,719,000 ·
Shares (Diluted) 11-point trend, +33.7% 160,010,000 149,514,000 143,190,000 141,848,000 141,021,000 139,612,000 153,164,000 134,056,000 126,098,000 120,933,000 119,719,000 ·
EBITDA 12-point trend, -699.7% $-382M $-475M $-354M $-410M $-30M $-172M $366M $-61M $25M $-46M $-76M $-48M
Balance Sheet 24
Annual Balance Sheet data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Cash & Equivalents 12-point trend, +160.3% $372M $242M $399M $276M $869M $398M $683M $279M $130M $85M $129M $143M
Short-term Investments 5-point trend, +85.0% $2.31B $2.06B $1.93B $1.71B $1.25B · · · · · · ·
Inventory 9-point trend, +0.7% $10M $13M $7M $22M $25M $22M $18M $9M $10M · · ·
Other Current Assets 12-point trend, +1411.0% $237M $218M $205M $168M $143M $140M $140M $102M $73M $17M $15M $16M
Current Assets 12-point trend, +257.5% $2.99B $2.62B $2.64B $2.20B $2.35B $2.13B $2.72B $2.21B $1.17B $798M $837M $837M
PP&E (Net) 12-point trend, +38.3% $123M $94M $71M $74M $178M $181M $154M $132M $122M $93M $90M $89M
Accum. Depreciation 12-point trend, +65.1% $109M $106M $97M $88M $103M $87M $74M $61M $88M $80M $73M $66M
Intangibles 6-point trend, +42.4% · · · · $29M $28M $26M $24M $22M $20M · ·
Other Non-current Assets 10-point trend, +12851.2% $172M $127M $105M $75M $71M $50M $28M $13M $10M $1M · ·
Total Assets 12-point trend, +268.7% $3.52B $3.00B $2.99B $2.53B $2.61B $2.39B $3.23B $2.67B $1.32B $912M $948M $956M
Accounts Payable 12-point trend, +56.1% $28M $43M $26M $18M $12M $17M $16M $29M $25M $21M $28M $18M
Accrued Liabilities 12-point trend, +248.4% $106M $108M $148M $140M $89M $90M $67M $48M $67M $36M $28M $30M
Current Liabilities 12-point trend, +577.7% $782M $309M $448M $312M $241M $599M $273M $280M $244M $134M $149M $115M
Capital Leases 5-point trend, +1250.3% $262M $162M $171M $179M $19M · · · · · · ·
Other Non-current Liabilities 5-point trend, +304.8% $28M $52M $42M $16M $7M · · · · · · ·
Total Liabilities 12-point trend, +334.8% $3.03B $2.42B $2.60B $1.96B $1.84B $1.65B $1.55B $1.48B $957M $813M $747M $698M
Long-term Debt 4-point trend, +51.8% $1.81B $1.25B $1.31B $1.19B · · · · · · · ·
Total Debt 4-point trend, +49.7% $1.76B $1.20B $1.24B $1.18B · · · · · · · ·
Common Stock 12-point trend, +38.1% $163.0K $158.0K $144.0K $142.0K $141.0K $140.0K $140.0K $138.0K $125.0K $122.0K $120.0K $118.0K
Retained Earnings 12-point trend, -161.4% $-2.63B $-2.25B $-1.80B $-1.43B $-1.16B $-1.13B $-708M $-967M $-1.24B $-1.18B $-1.09B $-1.01B
AOCI 12-point trend, -163.6% $-25M $-31M $-33M $-57M $-33M $-21M $-25M $-32M $-32M $-30M $-14M $40M
Stockholders' Equity 12-point trend, +89.7% $489M $588M $387M $573M $772M $743M $1.47B $1.05B $281M $100M $201M $258M
Liabilities + Equity 12-point trend, +268.7% $3.52B $3.00B $2.99B $2.53B $2.61B $2.39B $3.23B $2.67B $1.32B $912M $948M $956M
Shares Outstanding 12-point trend, +37.9% 163,304,875 157,908,815 144,340,526 142,057,736 141,210,015 140,365,594 140,339,615 137,928,828 124,976,373 121,636,273 120,351,480 118,442,726
Cash Flow 14
Annual Cash Flow data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Stock-based Comp 12-point trend, +326.6% $134M $130M $106M $100M $121M $230M $147M $131M $86M $72M $59M $31M
Deferred Tax 12-point trend, +100.0% $0 $0 $0 $0 $0 $342M $904.0K $-291M $0 $0 $0 $-11M
Amort. of Intangibles 10-point trend, +57.2% $2M $2M $3M $2M $2M $2M $2M $2M $2M $2M · ·
Operating Cash Flow 12-point trend, -4373.4% $-269M $-501M $-308M $-274M $31M $36M $346M $603M $174M $-112M $21M $6M
CapEx 12-point trend, +584.3% $51M $45M $24M $16M $12M $35M $31M $14M $35M $7M $8M $8M
Investing Cash Flow 11-point trend, -362.6% $-278M $-134M $-214M $-263M $195M $274M $-41M $-930M $-358M $57M $-60M ·
Stock Issued 11-point trend, +0.00 $0 $489M $0 $0 · $0 $0 $448M $72M $0 $0 $0
Stock Repurchased 6-point trend, +0.00 · · · $0 $0 $91M $34M $0 $0 · · ·
Net Stock Activity 9-point trend, +0.00 $0 $489M · $0 $0 $-91M $-34M · $72M · $0 $0
Financing Cash Flow 11-point trend, +2633.3% $676M $478M $644M $-55M $246M $-597M $100M $476M $229M $11M $25M ·
Net Change in Cash 11-point trend, +1016.7% $130M $-157M $123M $-593M $472M $-286M $404M $149M $45M $-44M $-14M ·
Taxes Paid 8-point trend, -639000.00 $-639.0K $-6M $48M $5M · $26M $9M $0 $0 · · ·
Free Cash Flow 12-point trend, -25855.2% $-320M $-546M $-331M $-290M $19M $772.0K $315M $589M $139M $-119M $13M $-1M
Levered FCF 12-point trend, -1867.1% $-337M $-563M $-345M $-299M $10M $-128M $272M $716M $106M $-159M $-23M $-17M
Profitability 7
Annual Profitability data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Operating Margin 4-point trend, +121.7% · · · · · · · · 4.8% -13.4% -26.7% -22.3%
Net Margin 4-point trend, +93.5% · · · · · · · · -1.2% -25.0% -31.1% -18.2%
Pretax Margin 4-point trend, +82.0% · · · · · · · · -4.6% -24.1% -31.0% -25.4%
EBITDA Margin 4-point trend, +121.7% · · · · · · · · 4.8% -13.4% -26.7% -22.3%
ROA 12-point trend, -170.6% -11.7% -15.2% -13.3% -10.5% -1.1% -16.1% 10.0% 13.7% -0.53% -9.3% -9.2% -4.3%
ROE 12-point trend, -455.1% -68.1% -71.9% -104.3% -40.1% -3.8% -39.0% 23.4% 41.2% -2.8% -57.6% -38.5% -12.3%
ROIC 12-point trend, -28.5% -17.1% -26.0% -23.8% -24.5% -3.8% -58.4% 21.8% 16.5% 5.5% -48.1% -37.9% -13.3%
Liquidity & Solvency 5
Annual Liquidity & Solvency data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Current Ratio 12-point trend, -47.2% 3.8 8.5 5.9 7.1 9.7 3.7 10.0 7.9 5.2 6.0 5.6 7.3
Quick Ratio 12-point trend, +176.3% 3.4 7.4 5.2 6.4 3.6 0.7 2.5 1.0 0.6 0.6 0.9 1.2
Debt / Equity 4-point trend, +75.3% 3.6 2.0 3.2 2.1 · · · · · · · ·
LT Debt / Equity 4-point trend, +32.3% 2.7 2.0 3.2 2.1 · · · · · · · ·
Interest Coverage 12-point trend, -928.9% -22.1 -28.0 -27.9 -50.5 -3.2 -3.8 7.5 -1.4 0.5 -1.2 -2.1 -2.1
Efficiency 2
Annual Efficiency data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Asset Turnover 4-point trend, +91.2% · · · · · · · · 0.5 0.4 0.3 0.2
Inventory Turnover 8-point trend, +619.2% 1.4 1.1 0.4 0.6 0.5 0.6 0.3 0.2 · · · ·
Per Share 5
Annual Per Share data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Book Value / Share 12-point trend, +37.6% $2.99 $3.80 $2.68 $4.03 $5.47 $6.01 $10.48 $7.60 $2.65 $0.82 $1.67 $2.18
Revenue / Share · · · · · · · · $4.03 · · ·
Cash Flow / Share 9-point trend, -221.5% $-1.68 $-3.35 $-2.15 $-1.93 $0.22 $0.26 $2.42 $4.50 $1.38 · · ·
Cash / Share 12-point trend, +88.8% $2.28 $1.53 $2.77 $1.95 $6.16 $2.83 $4.87 $2.02 $1.04 $0.70 $1.07 $1.21
EPS (TTM) 12-point trend, -580.0% $-2.38 $-3.04 $-2.56 $-1.90 $-0.20 $-3.18 $1.90 $2.07 $0.15 $-0.50 $-0.74 $-0.35
Valuation (TTM) 14
Annual Valuation (TTM) data for IONS
Metric Trend 202520242023202220212020201920182017201620152014
Revenue TTM 12-point trend, +340.7% $944M $705M $788M $587M $810M $729M $1.12B $600M $508M $347M $284M $214M
Net Income TTM 12-point trend, -878.3% $-381M $-454M $-366M $-270M $-29M $-444M $278M $274M $346.0K $-60M $-88M $-39M
Market Cap 12-point trend, +76.7% $12.92B $5.52B $7.30B $5.37B $4.30B $7.94B $8.48B $7.46B $6.29B $5.82B $7.45B $7.31B
Enterprise Value 4-point trend, +163.5% $12.00B $4.43B $6.21B $4.55B · · · · · · · ·
P/E 12-point trend, +81.2% -33.2 -11.5 -19.8 -19.9 -152.2 -17.8 31.8 26.1 335.3 -95.7 -83.7 -176.4
P/S 12-point trend, -59.9% 13.7 7.8 9.3 9.1 5.3 10.9 7.6 12.4 12.4 16.8 26.3 34.1
P/B 12-point trend, -6.9% 26.4 9.2 18.9 9.4 5.6 9.4 5.8 7.1 19.0 58.4 37.1 28.4
P / Tangible Book 6-point trend, +138.1% 26.4 9.4 18.9 9.4 5.8 11.1 · · · · · ·
P / Cash Flow 12-point trend, -104.1% -48.1 -11.0 -23.7 -19.6 139.5 221.1 24.5 12.4 36.1 -51.9 352.8 1163.5
P / FCF 12-point trend, +99.3% -40.4 -10.1 -22.0 -18.5 228.0 10280.1 26.9 12.7 45.1 -48.8 554.9 -5930.8
EV / EBITDA 4-point trend, -183.2% -31.4 -9.3 -17.6 -11.1 · · · · · · · ·
EV / FCF 4-point trend, -138.9% -37.5 -8.1 -18.7 -15.7 · · · · · · · ·
EV / Revenue 4-point trend, +64.0% 12.7 6.3 7.9 7.8 · · · · · · · ·
Earnings Yield 12-point trend, -428.1% -3.0% -8.7% -5.1% -5.0% -0.66% -5.6% 3.1% 3.8% 0.30% -1.1% -1.2% -0.57%

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

Income Statement
2025-12-312024-12-312023-12-312022-12-312021-12-31
Net Income $-381M$-454M$-366M$-270M$-29M
Diluted EPS $-2.38$-3.04$-2.56$-1.90$-0.20
Balance Sheet
2025-12-312024-12-312023-12-312022-12-312021-12-31
Debt / Equity 3.62.03.22.1
Current Ratio 3.88.55.97.19.7
Quick Ratio 3.47.45.26.43.6
Cash Flow
2025-12-312024-12-312023-12-312022-12-312021-12-31
Free Cash Flow $-320M$-546M$-331M$-290M$19M

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Institutional owners (13F) 574 filers · $10.8B total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
73 (-17 vs prior Q) 41 (-24 vs prior Q) 203 (+20 vs prior Q) 159 (+6 vs prior Q) +11.7M

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.

Institution Value Shares % of tracked 13F Type
Capital World Investors $1,718,152,930 21,669,226 15.90% Shares
FMR LLC $1,062,239,646 13,396,893 9.83% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $623,182,054 7,859,529 5.77% Shares
VANGUARD CAPITAL MANAGEMENT LLC $571,799,597 7,211,497 5.29% Shares
WELLINGTON MANAGEMENT GROUP LLP $558,240,214 7,040,487 5.17% Shares
TWO SIGMA INVESTMENTS, LP $495,748,197 6,252,342 4.59% Shares
STATE STREET CORP $343,710,098 4,334,848 3.18% Shares
GEODE CAPITAL MANAGEMENT, LLC $260,920,005 3,157,327 2.42% Shares
TWO SIGMA ADVISERS, LP $241,452,501 3,052,111 2.23% Shares
Artisan Partners Limited Partnership $209,327,536 2,640,024 1.94% Shares
Tweedy, Browne Co LLC $180,805,859 2,280,311 1.67% Shares
Deep Track Capital, LP $174,438,000 2,200,000 1.61% Shares
BAKER BROS. ADVISORS LP $162,364,274 2,047,727 1.50% Shares
DEERFIELD MANAGEMENT COMPANY, L.P. $156,967,955 1,979,669 1.45% Shares
AMERICAN CENTURY COMPANIES INC $154,383,816 1,947,076 1.43% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $127,260,529 1,605,001 1.18% Shares
Pictet Asset Management Holding SA $126,981,913 1,596,998 1.18% Shares
BARCLAYS PLC $125,150,305 1,578,387 1.16% Shares
GOLDMAN SACHS GROUP INC $117,215,755 1,478,317 1.08% Shares
Polar Capital Holdings Plc $115,289,325 1,454,021 1.07% Shares
Alyeska Investment Group, L.P. $112,426,560 1,417,916 1.04% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $103,108,716 1,300,400 0.95% Call option
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $103,108,000 1,300,392 0.95% Shares
VANGUARD FIDUCIARY TRUST CO $84,114,400 1,060,845 0.78% Shares
GROUPAMA ASSET MANAGMENT $75,195,315 937,083 0.70% Shares
Capital International Investors $65,316,248 823,764 0.60% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $65,184,309 822,100 0.60% Put option
Davern Capital Partners, LP $63,329,637 798,709 0.59% Shares
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $62,422,083 787,263 0.58% Shares
Connor, Clark & Lunn Investment Management Ltd. $54,253,072 684,236 0.50% Shares
Eversept Partners, LP $52,702,794 664,684 0.49% Shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC $51,970,948 655,454 0.48% Shares
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $51,370,722 647,884 0.48% Shares
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $50,113,500 632,028 0.46% Shares
Caption Management, LLC $49,952,700 630,000 0.46% Call option
NEUBERGER BERMAN GROUP LLC $46,951,653 592,151 0.43% Shares
EVENTIDE ASSET MANAGEMENT, LLC $45,591,750 575,000 0.42% Shares
PERCEPTIVE ADVISORS LLC $44,878,140 566,000 0.42% Shares
RENAISSANCE TECHNOLOGIES LLC $44,355,936 559,414 0.41% Shares
JANE STREET GROUP, LLC $44,045,595 555,500 0.41% Call option
JANE STREET GROUP, LLC $43,070,328 543,200 0.40% Put option
TEACHER RETIREMENT SYSTEM OF TEXAS $41,414,514 522,317 0.38% Shares
BOONE CAPITAL MANAGEMENT LLC $41,228,976 519,977 0.38% Shares
NEW YORK STATE COMMON RETIREMENT FUND $39,648,965 500,050 0.37% Shares
BNP PARIBAS FINANCIAL MARKETS $36,049,119 454,649 0.33% Shares
Candriam S.C.A. $35,251,607 445,019 0.33% Shares
FIRST TRUST ADVISORS LP $33,872,360 427,197 0.31% Shares
PINNACLE ASSOCIATES LTD $33,282,136 419,752 0.31% Shares
BANK OF AMERICA CORP /DE/ $32,643,138 411,693 0.30% Shares
NOMURA HOLDINGS INC $31,889,804 402,192 0.30% Shares
Ikarian Capital, LLC $31,716,000 400,000 0.29% Call option
CITADEL ADVISORS LLC $30,645,585 386,500 0.28% Put option
BNP PARIBAS ASSET MANAGEMENT Holding S.A. $28,771,090 362,859 0.27% Shares
BlackRock, Inc. $28,184,582 355,462 0.26% Shares
Caption Management, LLC $27,426,411 345,900 0.25% Put option
TD Asset Management Inc $27,002,051 340,548 0.25% Shares
Freestone Grove Partners LP $26,955,983 339,967 0.25% Shares
AXA Investment Managers S.A. $26,590,024 406,451 0.25% Shares
Qube Research & Technologies Ltd $26,479,054 333,952 0.25% Shares
Capital Research Global Investors $26,319,205 331,936 0.24% Shares
CAPITAL FUND MANAGEMENT S.A. $26,130,336 329,554 0.24% Shares
ALLIANCEBERNSTEIN L.P. $25,564,391 340,450 0.24% Shares
Carmignac Gestion $25,452,090 321,000 0.24% Shares
Privium Fund Management B.V. $25,366,774 319,924 0.23% Shares
Swiss National Bank $24,976,350 315,000 0.23% Shares
ARK Investment Management LLC $23,848,064 300,770 0.22% Shares
Integral Health Asset Management, LLC $23,787,000 300,000 0.22% Call option
Ikarian Capital, LLC $23,787,000 300,000 0.22% Put option
MILLENNIUM MANAGEMENT LLC $22,904,661 288,872 0.21% Shares
DAVENPORT & Co LLC $22,515,188 283,960 0.21% Shares
Aberdeen Group plc $21,995,046 277,400 0.20% Shares
California Public Employees Retirement System $21,475,141 270,843 0.20% Shares
TimesSquare Capital Management, LLC $20,700,361 275,674 0.19% Shares
MILLENNIUM MANAGEMENT LLC $20,417,175 257,500 0.19% Call option
TOCQUEVILLE ASSET MANAGEMENT L.P. $19,918,837 251,215 0.18% Shares
CITADEL ADVISORS LLC $18,709,189 235,959 0.17% Shares
Universal- Beteiligungs- und Servicegesellschaft mbH $18,514,136 233,499 0.17% Shares
CITADEL ADVISORS LLC $18,434,925 232,500 0.17% Call option
Orion Investment Co $17,470,362 220,335 0.16% Shares
Life Cycle Investment Partners Ltd $17,435,554 219,896 0.16% Shares
ALGERT GLOBAL LLC $16,401,374 206,853 0.15% Shares
Corient Private Wealth LP $15,603,561 196,791 0.14% Shares
Eagle Health Investments LP $15,428,010 194,577 0.14% Shares
SECTOR GAMMA AS $15,022,918 189,468 0.14% Shares
Polymer Capital Management (HK) LTD $14,105,453 177,897 0.13% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $13,252,259 176,485 0.12% Shares
ADAR1 Capital Management, LLC $13,184,817 166,286 0.12% Shares
RHUMBLINE ADVISERS $13,075,750 164,911 0.12% Shares
Sicart Associates LLC $12,741,427 160,694 0.12% Shares
VANGUARD ASSET MANAGEMENT, Ltd $12,296,928 155,088 0.11% Shares
CSS LLC/IL $12,074,995 152,289 0.11% Shares
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main $11,996,656 151,301 0.11% Shares
CITIGROUP INC $11,996,577 151,300 0.11% Call option
ADAGE CAPITAL PARTNERS GP, L.L.C. $11,893,500 150,000 0.11% Shares
Focus Partners Wealth $11,728,366 147,917 0.11% Shares
Hudson Bay Capital Management LP $11,497,050 145,000 0.11% Shares
Artia Global Partners LP $11,447,573 144,376 0.11% Shares
Sonora Investment Management Group, LLC $11,108,840 169,808 0.10% Shares
Fisher Asset Management, LLC $10,877,317 137,184 0.10% Shares
Atle Fund Management AB $10,873,116 137,131 0.10% Shares

Company insiders 48 insiders · 30 officers · 19 directors

Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Brett P Monia Chief Executive Officer June 26, 2026 M 245,571 0 17 $-42,648,430
HOUGEN ELIZABETH L EVP, Finance & CFO March 16, 2026 M 82,660 0 6 $-21,117,075
Kleanthis G Xanthopoulos President of Regulus Dec. 3, 2007 A 0 0 $0
Holly B. Kordasiewicz EVP, Chief Development Officer July 7, 2026 S 22,096 0 4 $-4,810,107
BENNETT C FRANK EVP, Chief Scientific Officer July 7, 2026 J 0 0 13 $-19,364,354
Eugene Schneider EVP, Chf Clinical Develop Ofcr June 26, 2026 M 77,114 0 6 $-4,933,991
Joseph Baroldi EVP, Chief Business Officer June 26, 2026 M 4,669 0 17 $-6,405,525
O'NEIL PATRICK R. EVP CLO & General Counsel June 26, 2026 S 61,470 0 16 $-16,034,086
Eric Swayze EVP Research June 25, 2026 S 21,759 0 14 $-8,058,784
Brian Birchler EVP, Corp and Development Ops April 15, 2026 M 67,500 0 6 $-3,556,351
Kyle Jenne EVP, Chf GL Pdt Str Ofcr April 15, 2026 M 23,713 0 4 $-3,334,240
Shannon L. Devers EVP, Chief Human Resources Ofc April 2, 2026 S 16,348 0 15 $-8,854,430
Richard S Geary EVP, Chief Development Officer Nov. 6, 2025 M 59,657 0 13 $-13,858,595
Onaiza Cadoret-Manier EVP,Chf GL Pdt Str & Oper Ofc Feb. 2, 2024 S 35,788 0 0 $0
Stanley T Crooke Exec Chairman of the Board Jan. 26, 2021 S 2,021 0 0 $0
Damien Mcdevitt Chief Business Officer July 15, 2019 M 2,573 0 0 $0
Sarah Boyce Chief Business Officer Jan. 15, 2018 M 8,931 0 0 $0
ECKER DAVID J Vice President Sept. 2, 2008 M 0 0 0 $0
Michael J Treble Vice President, Pres of Ibis Aug. 11, 2008 M 0 0 0 $0
Jeffrey M Jonas Executive Vice President Jan. 2, 2008 A 0 0 $0
Mark K Wedel VP & Chief Medical Officer July 6, 2007 M 6,603 0 0 $0
LEVIN ARTHUR A Vice President April 25, 2007 M 1,674 0 0 $0
BROWN RICHARD K Vice President March 8, 2006 M 2,348 0 0 $0
MCNEIL JOHN A Vice President Jan. 3, 2005 A 0 0 $0
LOWENSTAM PATRICIA Vice President Jan. 3, 2005 A 603 0 0 $0
STEIN ARON Vice President July 1, 2004 J 1,536 0 0 $0
Hans A De Haan VP, Drug Development April 27, 2004 S 0 0 0 $0
LUNDSTEDT KAREN S Vice President March 10, 2004 M 5,407 0 0 $0
COLE DOUGLAS L Vice President March 9, 2004 M 9,616 0 0 $0
HOLMLUND JON T Vice President July 1, 2003 J 983 0 0 $0
Michael R Hayden Director July 31, 2026 P 24,000 2 0 $1,058,700
Peter N Reikes Director July 15, 2026 A 14,222 0 0 $0
Ludwig Hantson Director July 15, 2026 A 0 0 $0
Joan E Herman Director July 15, 2026 M 51,306 0 2 $-3,173,720
BERTHELSEN SPENCER R Director July 15, 2026 M 161,233 0 2 $-1,193,280
Allene M. Diaz Director July 7, 2026 M 3,811 0 5 $-5,278,717
Michael J. Yang Director July 1, 2026 A 7,940 0 0 $0
Joseph Loscalzo Director July 1, 2026 A 36,330 0 6 $-8,047,872
Joseph Klein III Director July 1, 2026 A 11,014 0 14 $-9,356,036
Lynne B Parshall Director April 15, 2026 S 51,344 0 6 $-2,171,964
Joseph H Wender Director Dec. 1, 2025 S 36,035 0 13 $-8,660,283
MUTO FREDERICK T Director July 15, 2022 M 59,597 0 0 $0
Breaux Castleman Director July 1, 2020 A 19,183 0 0 $0
REED JOHN C Director Sept. 6, 2012 M 0 0 0 $0
Richard D Dimarchi Director July 1, 2010 A 0 0 $0
GARIELI CHRISTOPHER Director July 1, 2005 A 155,431 0 0 $0
SKALETSKY MARK B Director July 1, 2004 A 0 0 $0
ISIS PHARMACEUTICALS INC 10% owner Oct. 10, 2020 P 98,322,397 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

Activists & 5%+ owners 5 positions

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
Ionis Pharmaceuticals, Inc. (“Ionis”) ×8 filings Oct. 13, 2020 Initial filing M&A / sale SEC
Isis Pharmaceuticals, Inc. (“ Isis ”) July 31, 2015 Initial filing SEC
Isis Pharmaceuticals, Inc. (“Isis”), Stanley T. Crooke (“Crooke”), B. Lynne Parshall (“Parshall”) ×2 filings Nov. 6, 2014 Initial filing SEC
Genzyme Corporation Jan. 15, 2008 Initial filing Passive investment SEC
Undisclosed reporting person April 12, 2001 Initial filing Passive investment SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

ETF ownership Held by 92 ETFs

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
FFOX · FundX Investment Trust 2.06% 62,476 NS June 30, 2026 N-PORT
ARKG · ARK ETF Trust 1.74% 288,230 NS April 30, 2026 N-PORT
FXH · First Trust Exchange-Traded AlphaDE… 1.72% 201,598 NS April 30, 2026 N-PORT
BBP · ETFis Series Trust I 1.48% 11,708 NS April 30, 2026 N-PORT
GDOC · Goldman Sachs ETF Trust 1.37% 3,614 NS May 31, 2026 N-PORT
CGMM · Capital Group Equity ETF Trust I 1.14% 414,653 NS May 31, 2026 N-PORT
LABU · Direxion Shares ETF Trust 0.94% 64,911 NS April 30, 2026 N-PORT
NUSC · Nushares ETF Trust 0.87% 150,398 NS April 30, 2026 N-PORT
TAX · EA Series Trust 0.87% 2,885 NS May 29, 2026 N-PORT
JDOC · J.P. Morgan Exchange-Traded Fund Tr… 0.84% 1,257 NS April 30, 2026 N-PORT
COPY · RBB Fund Trust 0.84% 37,653 NS May 31, 2026 N-PORT
HRTS · Tema ETF Trust 0.83% 5,599 NS May 31, 2026 N-PORT
IBB · iShares Trust 0.67% 1,211,656 SH Aug. 21, 2026 Daily
FFND · Northern Lights Fund Trust II 0.67% 9,000 NS May 31, 2026 N-PORT
BIB · ProShares Trust 0.63% 6,109 NS May 31, 2026 N-PORT
IBBQ · Invesco Exchange-Traded Fund Trust … 0.62% 9,716 SH Aug. 21, 2026 Daily
MEDI · Harbor ETF Trust 0.58% 2,153 NS April 30, 2026 N-PORT
FDMO · FIDELITY COVINGTON TRUST 0.53% 60,169 NS April 30, 2026 N-PORT
FNY · First Trust Exchange-Traded AlphaDE… 0.53% 36,525 NS April 30, 2026 N-PORT
QQQJ · Invesco Exchange-Traded Fund Trust … 0.48% 95,962 SH Aug. 21, 2026 Daily
OASC · Unified Series Trust 0.47% 5,182 NS May 31, 2026 N-PORT
FTXH · First Trust Exchange-Traded Fund VI 0.46% 2,093 NS June 30, 2026 N-PORT
CGGR · Capital Group Growth ETF 0.36% 1,150,284 NS May 31, 2026 N-PORT
VBK · VANGUARD INDEX FUNDS 0.34% 2,078,639 SH Aug. 19, 2026 Daily
ISCG · iShares Trust 0.30% 51,765 SH Aug. 21, 2026 Daily
BKMC · BNY Mellon ETF Trust 0.30% 25,160 NS April 30, 2026 N-PORT
SCHA · SCHWAB STRATEGIC TRUST 0.26% 778,644 NS May 31, 2026 N-PORT
IWP · iShares Trust 0.26% 893,267 SH Aug. 21, 2026 Daily
SCHM · SCHWAB STRATEGIC TRUST 0.23% 438,447 NS May 31, 2026 N-PORT
PRFZ · Invesco Exchange-Traded Fund Trust 0.23% 110,497 SH Aug. 21, 2026 Daily
FSMD · FIDELITY COVINGTON TRUST 0.23% 71,810 NS April 30, 2026 N-PORT
FTHI · First Trust Exchange-Traded Fund VI 0.22% 66,291 NS June 30, 2026 N-PORT
BBMC · J.P. Morgan Exchange-Traded Fund Tr… 0.22% 60,227 NS April 30, 2026 N-PORT
JMOM · J.P. Morgan Exchange-Traded Fund Tr… 0.21% 62,392 NS April 30, 2026 N-PORT
FFLG · FIDELITY COVINGTON TRUST 0.21% 16,403 NS April 30, 2026 N-PORT
FNX · First Trust Exchange-Traded AlphaDE… 0.20% 36,263 NS April 30, 2026 N-PORT
VFMO · VANGUARD WELLINGTON FUND 0.20% 50,927 SH Aug. 19, 2026 Daily
FHLC · FIDELITY COVINGTON TRUST 0.19% 70,978 NS April 30, 2026 N-PORT
VHT · VANGUARD WORLD FUND 0.18% 471,609 SH Aug. 19, 2026 Daily
FPX · First Trust Exchange-Traded Fund 0.17% 35,516 NS June 30, 2026 N-PORT
ESML · iShares Trust 0.16% 78,239 SH Aug. 21, 2026 Daily
FAD · First Trust Exchange-Traded AlphaDE… 0.16% 10,044 NS April 30, 2026 N-PORT
FTQI · First Trust Exchange-Traded Fund VI 0.15% 18,056 NS June 30, 2026 N-PORT
ISCB · iShares Trust 0.15% 7,379 SH Aug. 21, 2026 Daily
VXF · VANGUARD INDEX FUNDS 0.15% 1,895,610 SH Aug. 19, 2026 Daily
VB · VANGUARD INDEX FUNDS 0.15% 3,600,281 SH Aug. 19, 2026 Daily
IYH · iShares Trust 0.15% 98,040 SH Aug. 21, 2026 Daily
NBCR · Neuberger Berman ETF Trust 0.14% 16,581 NS May 31, 2026 N-PORT
AVIE · AMERICAN CENTURY ETF TRUST 0.13% 176 NS May 31, 2026 N-PORT
SMMD · iShares Trust 0.13% 84,231 SH Aug. 21, 2026 Daily