Transaction · 0000874015-26-000266

Swayze Eric

Swayze Eric, ER, reported an open-market or private sale at IONIS PHARMACEUTICALS INC involving 53.000000 shares for an estimated $2307.56. Reported holdings after the transaction were 390.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SER
IONSIONIS PHARMACEUTICALS INC
Trade date
Oct 16, 2026
Filing date
Oct 20, 2026
View on SEC Insider profile
Estimated value-$2.30kShares × reported price
Shares traded53$43.54 per share
Holdings after390Indirect · by Son
% of reported position traded11.96%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 443 shares.

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.

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 +3.0%1w ago +0.0%1d ago +0.0%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0000874015-26-000266
Common Stock
Transaction date
Oct 16, 2026
Filed Oct 20, 2026, 01:40 AM · 4d delay
Shares
53 sh
$43.54 per share
Estimated value
-$2.30k
Computed from shares × price
Holdings after
390 sh
Indirect · by Son
Filing-only score

0 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
    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 Research

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

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

    2. F2

      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.

    3. F3

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

    4. F4

      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 Compa…

    Original filing · 0000874015-26-000266
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