InsiderFlow

IONS

Ionis Pharmaceuticals, Inc.$54.59-0.34 (-0.63%)
Prev Close$54.93·MCap$9.63B·P/E·Vol1.65M·Yield

Buys (12M)

0

$0.00

Sells (12M)

114

$189.01M

Net Activity

Net Seller

$189.01M

Active Insiders

19

last 12 mo

Over the past 12 months, insider activity at Ionis Pharmaceuticals, Inc. (IONS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 114 insider sales totaling $189.01M. The most recent insider transaction was by Diaz Allene M. (director), who sold $863.6K worth of shares on Jul 9, 2026. Ionis Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $9.63B.

IONS Insider Trading Activity

DateInsiderTypeValue
Jul 9, 2026 Diaz Allene M.Sell$863.6K
Jul 9, 2026 BENNETT C FRANKSell$1.74M
Jul 9, 2026 Kordasiewicz Holly B.Sell$30.5K
Jul 6, 2026 KLEIN JOSEPH IIISell$910.4K
Jun 30, 2026 Schneider EugeneSell$2.11M
Jun 30, 2026 Baroldi JosephSell$451.7K
Jun 30, 2026 O'NEIL PATRICK R.Sell$245.5K
Jun 26, 2026 Swayze EricSell$839.5K
Jun 26, 2026 Monia Brett PSell$6.83M
Jun 16, 2026 Kordasiewicz Holly B.Sell$4.47M
Jun 16, 2026 BERTHELSEN SPENCER RSell$587.9K
Jun 3, 2026 BERTHELSEN SPENCER RSell$605.4K
May 15, 2026 Monia Brett PSell$356.0K
May 6, 2026 LOSCALZO JOSEPHSell$5.80M
May 5, 2026 KLEIN JOSEPH IIISell$743.2K
Apr 30, 2026 Baroldi JosephSell$116.7K
Apr 17, 2026 PARSHALL B LYNNESell$381.4K
Apr 17, 2026 Jenne KyleSell$368.5K
Apr 17, 2026 Baroldi JosephSell$419.0K
Apr 17, 2026 Birchler BrianSell$73.0K
Apr 2, 2026 Devers Shannon L.Sell$458.6K
Apr 2, 2026 KLEIN JOSEPH IIISell$1.69M
Mar 23, 2026 Schneider EugeneSell$412.5K
Mar 18, 2026 HOUGEN ELIZABETH LSell$16.31M
Mar 5, 2026 Baroldi JosephSell$511.9K
Mar 5, 2026 BENNETT C FRANKSell$6.74M
Mar 5, 2026 Devers Shannon L.Sell$1.60M
Mar 5, 2026 Diaz Allene M.Sell$4.35M
Mar 5, 2026 KLEIN JOSEPH IIISell$1.70M
Mar 5, 2026 LOSCALZO JOSEPHSell$82.8K
Feb 13, 2026 PARSHALL B LYNNESell$413.6K
Feb 13, 2026 Swayze EricSell$2.56M
Feb 11, 2026 PARSHALL B LYNNESell$413.6K
Feb 10, 2026 Monia Brett PSell$2.52M
Feb 6, 2026 Monia Brett PSell$2.52M
Feb 4, 2026 BENNETT C FRANKSell$3.02M
Feb 2, 2026 Baroldi JosephSell$439.4K
Feb 2, 2026 BENNETT C FRANKSell$7.54M
Feb 2, 2026 Birchler BrianSell$513.0K
Feb 2, 2026 HOUGEN ELIZABETH LSell$581.7K
Feb 2, 2026 Monia Brett PSell$5.21M
Feb 2, 2026 O'NEIL PATRICK R.Sell$516.2K
Feb 2, 2026 Schneider EugeneSell$515.6K
Feb 2, 2026 Swayze EricSell$512.4K
Jan 29, 2026 Baroldi JosephSell$439.4K
Jan 29, 2026 BENNETT C FRANKSell$488.1K
Jan 29, 2026 Birchler BrianSell$513.0K
Jan 29, 2026 HOUGEN ELIZABETH LSell$581.7K
Jan 29, 2026 Monia Brett PSell$5.21M
Jan 29, 2026 O'NEIL PATRICK R.Sell$516.2K
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IONS Insider Buying Activity

The following table shows recent insider purchases of Ionis Pharmaceuticals, Inc. (IONS) stock reported via SEC Form 4 filings.

No insider buying activity found for IONS in the last 12 months.

IONS Insider Selling Activity

The following table shows recent insider sales of Ionis Pharmaceuticals, Inc. (IONS) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Jul 9, 2026 Diaz Allene M.Sell$863.6K
Jul 9, 2026 BENNETT C FRANKSell$1.74M
Jul 9, 2026 Kordasiewicz Holly B.Sell$30.5K
Jul 6, 2026 KLEIN JOSEPH IIISell$910.4K
Jun 30, 2026 Schneider EugeneSell$2.11M
Jun 30, 2026 Baroldi JosephSell$451.7K
Jun 30, 2026 O'NEIL PATRICK R.Sell$245.5K
Jun 26, 2026 Swayze EricSell$839.5K
Jun 26, 2026 Monia Brett PSell$6.83M
Jun 16, 2026 Kordasiewicz Holly B.Sell$4.47M
Jun 16, 2026 BERTHELSEN SPENCER RSell$587.9K
Jun 3, 2026 BERTHELSEN SPENCER RSell$605.4K
May 15, 2026 Monia Brett PSell$356.0K
May 6, 2026 LOSCALZO JOSEPHSell$5.80M
May 5, 2026 KLEIN JOSEPH IIISell$743.2K
Apr 30, 2026 Baroldi JosephSell$116.7K
Apr 17, 2026 PARSHALL B LYNNESell$381.4K
Apr 17, 2026 Jenne KyleSell$368.5K
Apr 17, 2026 Baroldi JosephSell$419.0K
Apr 17, 2026 Birchler BrianSell$73.0K
Apr 2, 2026 Devers Shannon L.Sell$458.6K
Apr 2, 2026 KLEIN JOSEPH IIISell$1.69M
Mar 23, 2026 Schneider EugeneSell$412.5K
Mar 18, 2026 HOUGEN ELIZABETH LSell$16.31M
Mar 5, 2026 Baroldi JosephSell$511.9K
Mar 5, 2026 BENNETT C FRANKSell$6.74M
Mar 5, 2026 Devers Shannon L.Sell$1.60M
Mar 5, 2026 Diaz Allene M.Sell$4.35M
Mar 5, 2026 KLEIN JOSEPH IIISell$1.70M
Mar 5, 2026 LOSCALZO JOSEPHSell$82.8K
Feb 13, 2026 PARSHALL B LYNNESell$413.6K
Feb 13, 2026 Swayze EricSell$2.56M
Feb 11, 2026 PARSHALL B LYNNESell$413.6K
Feb 10, 2026 Monia Brett PSell$2.52M
Feb 6, 2026 Monia Brett PSell$2.52M
Feb 4, 2026 BENNETT C FRANKSell$3.02M
Feb 2, 2026 Baroldi JosephSell$439.4K
Feb 2, 2026 BENNETT C FRANKSell$7.54M
Feb 2, 2026 Birchler BrianSell$513.0K
Feb 2, 2026 HOUGEN ELIZABETH LSell$581.7K
Feb 2, 2026 Monia Brett PSell$5.21M
Feb 2, 2026 O'NEIL PATRICK R.Sell$516.2K
Feb 2, 2026 Schneider EugeneSell$515.6K
Feb 2, 2026 Swayze EricSell$512.4K
Jan 29, 2026 Baroldi JosephSell$439.4K
Jan 29, 2026 BENNETT C FRANKSell$488.1K
Jan 29, 2026 Birchler BrianSell$513.0K
Jan 29, 2026 HOUGEN ELIZABETH LSell$581.7K
Jan 29, 2026 Monia Brett PSell$5.21M
Jan 29, 2026 O'NEIL PATRICK R.Sell$516.2K

IONS Insiders

Kordasiewicz Holly B.

officer: EVP, Chief Development Officer

Sold $4.81M
3 tradesLast: Jul 9, 2026
BENNETT C FRANK

officer: EVP, Chief Scientific Officer

Sold $23.31M
9 tradesLast: Jul 9, 2026
Diaz Allene M.

Director

Sold $5.28M
3 tradesLast: Jul 9, 2026
KLEIN JOSEPH III

Director

Sold $7.04M
6 tradesLast: Jul 6, 2026
O'NEIL PATRICK R.

officer: EVP CLO & General Counsel

Sold $15.83M
11 tradesLast: Jun 30, 2026
Schneider Eugene

officer: EVP, Chf Clinical Develop Ofcr

Sold $5.86M
7 tradesLast: Jun 30, 2026
Baroldi Joseph

officer: EVP, Chief Business Officer

Sold $6.94M
13 tradesLast: Jun 30, 2026
Swayze Eric

officer: EVP Research

Sold $9.85M
10 tradesLast: Jun 26, 2026
Monia Brett P

director, officer: Chief Executive Officer

Sold $38.43M
12 tradesLast: Jun 26, 2026
BERTHELSEN SPENCER R

director

Sold $1.19M
2 tradesLast: Jun 16, 2026
LOSCALZO JOSEPH

Director

Sold $8.05M
4 tradesLast: May 6, 2026
PARSHALL B LYNNE

Director

Sold $2.80M
6 tradesLast: Apr 17, 2026
Birchler Brian

officer: EVP, Corp and Development Ops

Sold $4.09M
7 tradesLast: Apr 17, 2026
Jenne Kyle

officer: EVP, Chf GL Pdt Str Ofcr

Sold $592.5K
3 tradesLast: Apr 17, 2026
Devers Shannon L.

officer: EVP, Chief Human Resources Ofc

Sold $9.18M
9 tradesLast: Apr 2, 2026
HOUGEN ELIZABETH L

officer: EVP, Finance & CFO

Sold $21.70M
5 tradesLast: Mar 18, 2026
WENDER JOSEPH H

Director

Sold $7.05M
4 tradesLast: Dec 1, 2025
HERMAN JOAN E

Director

Sold $3.17M
1 tradesLast: Nov 19, 2025
Geary Richard S

EVP, Chief Development Officer

Sold $14.16M
5 tradesLast: Nov 5, 2025
Hayden Michael R

Director

Bought $477.9K
1 tradesLast: May 1, 2025