Spencer Berthelsen Insider Trades & Stock Holdings

Ionis Pharmaceuticals, Inc. · Latest filing Jun 15, 2026

Spencer Berthelsen at Ionis Pharmaceuticals, Inc. has 2 Form 4 trades on file since Jun 15, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($587.92K), net -$587.92K. Latest filing: disposed of 8K shares of $IONS on Jun 15, 2026 at $73.49.

Trades on file

2

Open-market bought

$0

Open-market sold

$587.92K

Net open-market

-$587.92K

Latest filing

Jun 15, 2026

All insider trades by Spencer Berthelsen

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 15, 2026	$IONS	Sell (Open-market sale) 10b5-1	8K	$73.49	$587.92K			+2.6%	-26.0%				Read
Jun 15, 2026	$IONS	Buy (Option exercise)	8K	$24.42	$195.36K			+2.6%	-26.0%				—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Spencer Berthelsen traded

• $IONS

Frequently asked questions

Has Spencer Berthelsen been buying or selling stock?

Spencer Berthelsen has 0 open-market purchases and 1 open-market sale on file, net -$587.92K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Spencer Berthelsen's latest insider trade?

disposed of 8K shares of $IONS on Jun 15, 2026 at $73.49.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.