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Devers Shannon L.

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54461
SEC CIK
0002037721

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Latest disclosed role at each company.

CompanyLast reported asReport datePublished
IONIS PHARMACEUTICALS INCIONS · Entity 1182EVP, Chief Human Resources OfcApril 02, 2026April 02, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

IONIS PHARMACEUTICALS INC

Report date April 02, 2026 · Filed April 02, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect16,348 Reported balance After 2026-04-02 transaction · row 1
1 source row

Row 1 · 2026-04-02 · Sale · Disposed 6,193 · Balance 16,348

F1: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.62 to $74.2450 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.62 to $74.2450 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
April 02, 2026 Filed Apr 2, 2026 23:43 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 6,193 $74.05 $458,613.33
Disclosure

SEC source: 0000874015-26-000160 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,348

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.62 to $74.2450 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 385 $0.00 Strike: $52.87 $0.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · derivative · entry 13

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,877

Underlying: Common Stock · 385 shares

Expires 2034-01-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,760 $0.00 Strike: $40.85 $0.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · derivative · entry 12

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,280

Underlying: Common Stock · 3,760 shares

Expires 2034-09-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,510 $0.00 Strike: $37.58 $0.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · derivative · entry 11

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,744

Underlying: Common Stock · 3,510 shares

Expires 2033-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 5,500 $0.00 Strike: $34.69 $0.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · derivative · entry 10

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,500

Underlying: Common Stock · 5,500 shares

Expires 2035-01-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 6,951 $0.00 Strike: $32.60 $0.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · derivative · entry 9

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 928

Underlying: Common Stock · 6,951 shares

Expires 2032-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 755 $80.84 $61,031.94
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 8

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,541

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.76 to $81.01 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 5,030 $80.00 $402,394.97
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 7

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,296

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.68 to $80.675 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 14,321 $79.12 $1,133,005.92
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 6

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,326

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on November 24, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.61 to $79.60 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 385 $52.87 $20,354.95
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 5

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,647

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 6,951 $32.60 $226,602.60
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 4

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,262

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 5,500 $34.69 $190,795.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,311

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 3,760 $40.85 $153,596.00
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,811

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 03, 2026 Filed Mar 5, 2026 23:14 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 3,510 $37.58 $131,905.80
Disclosure

SEC source: 0000874015-26-000135 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,051

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 22, 2026 Filed Jan 23, 2026 22:51 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 3,977 $81.34 $323,490.37
Disclosure

SEC source: 0000874015-26-000077 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,541

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.33 to $81.37 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

Read SEC document
January 16, 2026 Filed Jan 21, 2026 01:18 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 8,353 $75.95 $634,410.35
Disclosure

SEC source: 0000874015-26-000064 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,518

F2 · kind: The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.

F2 · shares: The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.94 to $75.96 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
January 15, 2026 Filed Jan 21, 2026 01:18 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 GrantRestricted Stock Unit · Derivative 9,675 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000874015-26-000064 · edgardoc.xml · derivative · entry 5

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,704

Underlying: Common Stock · 9,675 shares

Expires not disclosed

F8 · security: Grant to reporting person of Restricted Stock Units under the Ionis Pharmaceuticals, Inc. Amended and Restated 2011 Equity Incentive Plan.

F6 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Ionis common stock, or its equivalent cash value.

F7 · derivative.exercise_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

F7 · derivative.expiration_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

Read SEC document
January 15, 2026 Filed Jan 21, 2026 01:18 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionRestricted Stock Unit · Derivative 17,377 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000874015-26-000064 · edgardoc.xml · derivative · entry 4

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,029

Underlying: Common Stock · 17,377 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Ionis common stock, or its equivalent cash value.

F7 · derivative.exercise_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

F7 · derivative.expiration_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

Read SEC document
January 15, 2026 Filed Jan 21, 2026 01:18 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 GrantPerformance Restricted Stock Units · Derivative 25,800 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000874015-26-000064 · edgardoc.xml · derivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,800

Underlying: Common Stock · 25,800 shares

Expires not disclosed

F4 · security: Grant to reporting person of Performance Restricted Stock Units (PRSUs) under the Ionis Pharmaceuticals, Inc. Amended and Restated 2011 Equity Incentive Plan.

F5 · derivative.exercise_date: The PRSUs may vest at the end of the three-year performance period following the date of grant based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of PRSUs reported represents the maximum that may be earned, which is 200% of the target number. No number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of the performance period may be anywhere from zero to the amount stated.

F5 · derivative.expiration_date: The PRSUs may vest at the end of the three-year performance period following the date of grant based on the Issuer's relative total shareholder return as compared to a peer group of companies. The number of PRSUs reported represents the maximum that may be earned, which is 200% of the target number. No number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of the performance period may be anywhere from zero to the amount stated.

Read SEC document
January 15, 2026 Filed Jan 21, 2026 01:18 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 17,377 $0.00 $0.00
Disclosure

SEC source: 0000874015-26-000064 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,871

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Acquired pursuant to vesting and release of shares in accordance with Restricted Stock Unit awards.

F1 · shares: Acquired pursuant to vesting and release of shares in accordance with Restricted Stock Unit awards.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 25,545 $0.00 Strike: $56.78 $0.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · derivative · entry 15

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,971

Underlying: Common Stock · 25,545 shares

Expires 2028-01-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 9,264 $0.00 Strike: $52.87 $0.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · derivative · entry 14

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,262

Underlying: Common Stock · 9,264 shares

Expires 2034-01-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,829 $0.00 Strike: $37.58 $0.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · derivative · entry 13

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,254

Underlying: Common Stock · 3,829 shares

Expires 2033-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,460 $0.00 Strike: $32.60 $0.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · derivative · entry 12

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,879

Underlying: Common Stock · 3,460 shares

Expires 2032-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 2,101 $0.00 Strike: $32.60 $0.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · derivative · entry 11

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,339

Underlying: Common Stock · 2,101 shares

Expires 2032-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 9,264 $84.62 $783,919.68
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 10

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.08 to $85.08 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 9,264 $52.87 $489,787.68
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 9

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,758

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 3,829 $84.62 $324,009.98
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 8

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.08 to $85.08 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 3,829 $37.58 $143,893.82
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 7

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,323

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 3,460 $84.62 $292,785.20
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 6

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.08 to $85.08 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 3,460 $32.60 $112,796.00
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 5

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,954

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 2,101 $85.36 $179,341.36
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 4

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.10 to $85.64 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

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January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 2,101 $32.60 $68,492.60
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,595

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 25,545 $85.36 $2,180,521.20
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.10 to $85.64 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

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January 07, 2026 Filed Jan 9, 2026 22:08 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 25,545 $56.78 $1,450,445.10
Disclosure

SEC source: 0000874015-26-000029 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,039

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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January 02, 2026 Filed Jan 6, 2026 22:34 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 GrantNon-Qualified Stock Option (right to buy) · Derivative 19,350 $0.00 Strike: $79.67 $0.00
Disclosure

SEC source: 0000874015-26-000019 · edgardoc.xml · derivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,350

Underlying: Common Stock · 19,350 shares

Expires 2036-01-01

F1 · derivative.exercise_date: Grant on 01/02/2026 to reporting person of stock options under the Ionis Pharmaceuticals, Inc. Amended and Restated 2011 Equity Incentive Plan. Following this transaction, the option was exercisable as to 0 shares on 01/02/2026. 25% of the shares subject to the option will vest and become exercisable on 01/02/2027. Thereafter, the remaining shares subject to the option will vest and become exercisable in 36 equal monthly installments over the next 3 years.

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November 25, 2025 Filed Nov 28, 2025 22:51 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 16,777 $0.00 Strike: $53.77 $0.00
Disclosure

SEC source: 0000874015-25-000285 · edgardoc.xml · derivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,777 shares

Expires 2026-01-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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November 25, 2025 Filed Nov 28, 2025 22:51 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 16,777 $80.91 $1,357,442.17
Disclosure

SEC source: 0000874015-25-000285 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.66 to $81.14 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

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November 25, 2025 Filed Nov 28, 2025 22:51 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 16,777 $53.77 $902,099.29
Disclosure

SEC source: 0000874015-25-000285 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,271

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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October 16, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 1,263 $73.62 $92,983.70
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · nonDerivative · entry 4

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,494

F4 · kind: The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.

F4 · shares: The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.

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October 15, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionRestricted Stock Unit · Derivative 2,820 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · derivative · entry 6

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,406

Underlying: Common Stock · 2,820 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Ionis common stock, or its equivalent cash value.

F6 · derivative.exercise_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

F6 · derivative.expiration_date: Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

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October 15, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 6,000 $0.00 Strike: $48.51 $0.00
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · derivative · entry 5

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,000 shares

Expires 2027-04-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
October 15, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 2,820 $0.00 $0.00
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · nonDerivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,757

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: Acquired pursuant to vesting and release of shares in accordance with a Restricted Stock Unit award.

F3 · shares: Acquired pursuant to vesting and release of shares in accordance with a Restricted Stock Unit award.

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October 15, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 6,000 $72.94 $437,653.80
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,937

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.775 to $73.04 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) on this Form 4.

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October 15, 2025 Filed Oct 17, 2025 00:16 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 6,000 $48.51 $291,060.00
Disclosure

SEC source: 0000874015-25-000260 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,937

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 00:36 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 2,234 $0.00 Strike: $37.58 $0.00
Disclosure

SEC source: 0000874015-25-000217 · edgardoc.xml · derivative · entry 5

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,083

Underlying: Common Stock · 2,234 shares

Expires 2033-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 00:36 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 928 $0.00 Strike: $32.60 $0.00
Disclosure

SEC source: 0000874015-25-000217 · edgardoc.xml · derivative · entry 4

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,440

Underlying: Common Stock · 928 shares

Expires 2032-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 00:36 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 928 $32.60 $30,252.80
Disclosure

SEC source: 0000874015-25-000217 · edgardoc.xml · nonDerivative · entry 3

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,937

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 00:36 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 SaleCommon Stock 3,162 $61.02 $192,942.71
Disclosure

SEC source: 0000874015-25-000217 · edgardoc.xml · nonDerivative · entry 2

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,009

F1 · shares: Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 3, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.0075 to $61.045 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) on this Form 4.

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September 03, 2025 Filed Sep 5, 2025 00:36 UTC IONIS PHARMACEUTICALS INC IONS · Entity 1182 Exercise / conversionCommon Stock 2,234 $37.58 $83,953.72
Disclosure

SEC source: 0000874015-25-000217 · edgardoc.xml · nonDerivative · entry 1

Devers Shannon L. · CIK 0002037721 · EVP, Chief Human Resources Ofc

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,171

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.