Transaction · 0000874015-26-000259

Birchler Brian

Birchler Brian, EVP, CDO, reported a transaction classified as other at IONIS PHARMACEUTICALS INC involving 58.000000 shares for an estimated $2975.75. Reported holdings after the transaction were 102883.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

otherSEC transaction code JEVP, CDO
IONSIONIS PHARMACEUTICALS INC
Filing timeSep 03
Trade dateAug 31, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$61.33
Pre-filing
1mo ago -15.6%1w ago +1.2%1d ago -0.5%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

IONS price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
IONS since 2026-09-03Filed today · pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
other
Code J
Identifier
0000874015-26-000259
Common Stock
Transaction date
Aug 31, 2026
Filed Sep 03, 2026, 12:22 AM · 3d delay
Shares
58 sh
$5.13k per share
Estimated value
$297k
Computed from shares × price
Holdings after
102k sh
Direct

Filing warnings

Notes recorded with this filing
1 warning
ambiguous transaction codeThe transaction code is missing or represents other activity; review the filing and footnotes.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
+2score
Filing-only score

+2

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP, Corp and Development Ops

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Reporting shares purchased under the Ionis Pharmaceuticals, Inc. Amended and Restated 2000 Employee Stock Purchase Plan on August 31, 2026. These shares may not be sold until February 28, 2027.

Original filing · 0000874015-26-000259
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Same reporting owner
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