Sarissa Capital Management LP — 13F Holdings

2026 Q2  ·  10 Positions

2026 Q2 Portfolio Activity

In 2026 Q2, Sarissa Capital Management LP maintained a portfolio of 10 distinct positions. The most significant new addition was BIOGEN INC, now representing 0.12% of the total fund value.
Position History hover any row below to update
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Sarissa Capital Management LP Greenwich, CT Hedge Fund / Activist Investor AUM $178M
PCA Score Concentration Risk
Risk ENB
Total Positions
10
Quarter
2026 Q2
Top Holding
INVA (24.1%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-10 of 10

Sarissa Capital Management LP Full Holdings List — 2026 Q2

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
INVA
INNOVIVA INC
Healthcare 24.14% 31.50% #1
Prev: #1
6.5
-240,346 -11.3%
P
S
1,890,604 $42,935,617 2016 Q3 13F Filing 2026-06-30 2026-08-14
IRWD
IRONWOOD PHARMA...
Healthcare 21.75% 20.46% #2
Prev: #2
6.5
no change no change
P
S
9,188,635 $38,684,153 2017 Q4 13F Filing 2026-06-30 2026-08-14
AMRN
AMARIN CORP PLC
Healthcare 15.00% 15.35% #3
Prev: #3
6.0
no change no change
P
S
1,673,395 $26,673,916 2021 Q3 13F Filing 2026-06-30 2026-08-14
NBIX
NEUROCRINE BIOS...
Healthcare 11.04% 9.74% #4
Prev: #4
5.5
no change no change
P
S
116,533 $19,639,889 2023 Q2 13F Filing 2026-06-30 2026-08-14
CYTK
CYTOKINETICS IN...
Healthcare 10.95% 9.56% #5
Prev: #5
5.5
no change no change
P
S
228,623 $19,476,393 2024 Q1 13F Filing 2026-06-30 2026-08-14
LNTH
LANTHEUS HLDGS ...
Healthcare 10.41% 8.03% #6
Prev: #6
5.0
no change no change
P
S
166,919 $18,517,994 2024 Q3 13F Filing 2026-06-30 2026-08-14
BHVN
BIOHAVEN LTD
Healthcare 4.87% 3.02% #7
Prev: #7
2.4
19,128 3.4%
P
S
582,312 $8,664,803 2025 Q4 13F Filing 2026-06-30 2026-08-14
REGN
REGENERON PHARM...
Healthcare 1.47% 2.05% #8
Prev: #8
1.6
no change no change
P
S
4,190 $2,612,633 2025 Q3 13F Filing 2026-06-30 2026-08-14
VOR
VOR BIOPHARMA I...
Healthcare 0.26% 0.29% #9
Prev: #9
1.1
no change no change
P
S
25,399 $467,596 2021 Q1 13F Filing 2026-06-30 2026-08-14
BIIB
BIOGEN INC
Healthcare 0.12% #10
Prev: #—
3.5
950
NEW
950 $205,257 2015 Q4 13F Filing 2026-06-30 2026-08-14
Showing 1-10 of 10 holdings

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