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Sarissa Capital Management LP

Position in IRWD — Ironwood Pharmaceuticals Inc

CIK 1577524 GREENWICH, CT

Position in IRWD

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$32,252,108
-$21,396,387 QoQ
Shares Held
9,188,635
-42.3% QoQ
Ownership
5.58%
of shares outstanding
% of Portfolio
20.46%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in IRWD Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

Sarissa Capital Management LP holds $60,264,971 across 3 Drug Manufacturers - Specialty & Generic names. IRWD ranks #1 (53.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 IRWD
Ironwood Pharmaceuticals Inc
This page
9,188,635 $32,252,108

All Filings in IRWD

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26 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $32,252,108 9,188,635
2026-03-17 $29,863,063 9,188,635
2025-12-31 $53,648,495 15,919,435
2025-09-30 $20,854,459 15,919,435
2025-06-30 $11,461,993 15,919,435
2025-03-31 $24,093,300 16,390,000
2024-12-31 $72,607,700 16,390,000
2024-09-30 $67,526,800 16,390,000
2024-06-30 $106,862,800 16,390,000
2024-03-31 $142,756,900 16,390,000
2023-12-31 $187,501,600 16,390,000
2023-09-30 $157,835,700 16,390,000
2023-06-30 $174,389,600 16,390,000
2023-03-31 $172,422,800 16,390,000
2022-12-31 $203,072,100 16,390,000
2022-09-30 $169,800,400 16,390,000
2022-06-30 $188,976,700 16,390,000
2022-03-31 $206,186,200 16,390,000
2021-12-31 $191,107,400 16,390,000
2021-09-30 $214,053,400 16,390,000
2021-06-30 $210,939,300 16,390,000
2021-03-31 $183,240,200 16,390,000
2020-12-31 $159,915,600 14,040,000
2020-09-30 $126,219,600 14,040,000
2020-06-30 $144,892,800 14,040,000
2020-03-31 $136,467,250 13,525,000