Activist profile

Sarissa Capital Management LP

Campaigns

Proxy fights

Settlements

Directors placed

Style

Often loses at the finish

Sarissa Capital Management LP is one of the U.S. shareholder activists tracked by Boardroom Alpha, with 4 disclosed campaigns since 2017. Recent U.S. targets include Alkermes PLC, Amarin Corp PLC, and Innoviva Inc.

Recent activity

Notable Campaigns

Year	Ticker	Target	Type
2023	ALKS	Alkermes PLC	Proxy fight
2023	AMRN	Amarin Corp PLC	Proxy fight
2018	INVA	Innoviva Inc	Cooperation agreement
2017	INVA	Innoviva Inc	Proxy fight

Full campaign history, dissident slates, per-nominee seat outcomes, and filings timelines inside the platform →

Current positions

Top Holdings

Q ending Mar 31, 2026

Ticker	Company	% of float	Position value
IRWD	Ironwood Pharmaceuticals Inc	5.58%	$32M
INVA	Innoviva Inc	2.89%	$50M
BHVN	Biohaven Ltd	0.37%	$5M
LNTH	Lantheus Holdings Inc	0.26%	$13M
CYTK	Cytokinetics Inc	0.18%	$15M

Full portfolio, position changes by quarter, and overlap with Sarissa’s likely next targets inside the platform →

Last 12 months

Recent SEC Filings

Portfolio (13F)

13F-HRMay 15, 2026
View →·SEC ↗
13F-HRFeb 17, 2026
View →·SEC ↗

Voting (N-PX)

N-PXSep 2, 2025
View →·SEC ↗

Full filings history with parsed positions, voting records, and dissident-proxy timelines inside the platform →

View all filings on SEC EDGAR ↗

Compare

Other Often loses at the finish activists

Linked profiles

Biglari Capital Corp.6

Inside Boardroom Alpha

The full Sarissa Capital Management LP profile

→Daily-rescored target prediction from the activist's current 13F overlap
→Full detail on every activist board nominee and the election or settlement result
→Per-campaign effectiveness scoring across vote outcomes and concessions
→Composite influence, vote-strength, and negotiating-leverage scoring
→Preferred legal counsel, proxy solicitor, and IR/PR provider history

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