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
Trade date
Aug 31, 2026
Filing date
Sep 03, 2026
View on SEC Insider profile
Estimated value$2.97kShares × reported price
Shares traded58$51.31 per share
Holdings after102kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

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.

IONS price since this filing

Daily closing prices, with the filing date and available return windows
IONS · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -10.9%1w ago +6.7%1d ago +5.0%
Returns since7d -4.3%30d -25.1%90d180d1y

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
$51.31 per share
Estimated value
$2.97k
Computed from shares × price
Holdings after
102,883 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

+2 points

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.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • ambiguous_code-4 points

    transaction_code = J

    Other/ambiguous code reduces confidence.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

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
Related transactions

0 other transactions

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Recent company activity

0 recent txs

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