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Joseph Klein III has sold IONS and made no open-market buys since Nov 2017

Director at Ionis Pharmaceuticals, Inc.

SEC CIK 0001206369 · Filings on SEC.gov ↗

$0Bought
$9.6MSold
NoneLast buy

Every filing

31 filings since Nov 2017, newest first

IONSSell

IONIS PHARMACEUTICALS INC

Director

$910K−51.1%Jul 6
IONSSell

Ionis Pharmaceuticals Inc

Director

$743K−48.0%May 5
IONSSell

Ionis Pharmaceuticals Inc

Director

$1.7M−67.0%Apr 2
IONSSell

Ionis Pharmaceuticals Inc

Director

$1.7M−66.0%Mar 5
IONSSell

Ionis Pharmaceuticals Inc

Director

$960K−42.0%Nov 28
IONSSell

Ionis Pharmaceuticals Inc

Director

$600K−42.0%Jul 17
IONSSell

Ionis Pharmaceuticals Inc

Director

$256K−27.0%May 7
IONSSell

Ionis Pharmaceuticals Inc

Director

$100K−8.0%Nov 17
IONSSell

Ionis Pharmaceuticals Inc

Director

$90K−8.0%Sep 28
IONSSell

Ionis Pharmaceuticals Inc

Director

$149K−12.0%Jul 19
IONSSell

Ionis Pharmaceuticals Inc

Director

$80K−8.0%Jan 18
IONSSell

Ionis Pharmaceuticals Inc

Director

$51K−5.0%Jul 19
IONSSell

Ionis Pharmaceuticals Inc

Director

$153K−19.0%Jul 19
IONSSell

Ionis Pharmaceuticals Inc

Director

$135K−17.0%Oct 22
IONSSell

Ionis Pharmaceuticals Inc

Director

$62K−7.0%Dec 23
IONSSell

Ionis Pharmaceuticals Inc

Director

$65K−7.0%Dec 18
IONSSell

Ionis Pharmaceuticals Inc

Director

$64K−7.0%Dec 10
IONSSell

Ionis Pharmaceuticals Inc

Director

$64K−7.0%Dec 4
IONSSell

Ionis Pharmaceuticals Inc

Director

$51K−6.0%Nov 26
IONSSell

Ionis Pharmaceuticals Inc

Director

$120K−13.0%Nov 21
IONSSell

Ionis Pharmaceuticals Inc

Director

$92K−17.0%Mar 30
IONSSell

Ionis Pharmaceuticals Inc

Director

$102K−17.0%Mar 16
IONSSell

Ionis Pharmaceuticals Inc

Director

$156K−23.0%Mar 1
IONSSell

Ionis Pharmaceuticals Inc

Director

$147K−23.0%Feb 16
IONSSell

Ionis Pharmaceuticals Inc

Director

$159K−23.0%Jan 31
IONSSell

Ionis Pharmaceuticals Inc

Director

$158K−23.0%Jan 17
IONSSell

Ionis Pharmaceuticals Inc

Director

$152K−23.0%Jan 2
IONSSell

Ionis Pharmaceuticals Inc

Director

$155K−23.0%Dec 19
IONSSell

Ionis Pharmaceuticals Inc

Director

$161K−23.0%Dec 1
IONSSell

Ionis Pharmaceuticals Inc

Director

$121K−18.0%Nov 17
IONSSell

Ionis Pharmaceuticals Inc

Director

$166K−29.0%Nov 14
About Joseph Klein III

Joseph "Skip" Klein III is an independent director at Ionis Pharmaceuticals Inc (IONS) since December 2005, currently serving as Audit Committee Chair and Finance Committee member, where he is designated as the Audit Committee's financial expert due to his Chartered Financial Analyst (CFA) credential and extensive experience(

Klein, aged 63 as of March 1, 2025, is the Managing Director of Gauss Capital Advisors, a biopharma-focused advisory firm he founded in 1998( His career highlights include serving as founding portfolio manager of the T. Rowe Price Health Sciences Fund (1989–1998), VP of Strategy at Medical Manager Corporation (pre-merger with WebMD, 1999–2000), and venture partner roles at MPM Capital (2001–2002) and Red Abbey Venture Partners (2003–2008)( He has held prior directorships at public companies including Akcea Therapeutics (until its 2020 merger with Ionis), BioMarin, NPS, OSI, PDL BioPharma, and Savient, and currently serves on the board of The Prospector Funds( Recently, as a corporate insider, Klein executed Rule 10b5-1 trades, selling shares on September 3, 2025 ($1.68M) and November 25, 2025 ($960K) after exercising stock options, retaining direct ownership of 16,346 shares(

Written by Perplexity from public sources.

Filings come from SEC EDGAR. Not investment advice.