IRONWOOD PHARMACEUTICALS INC (IRWD) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-03-27
09:51 am
Sale
2026-03-1313GIRONWOOD PHARMACEUTICALS INC C
IRWD
VANGUARD GROUP INC0
0.000%
-16,202,129decrease
(Position Closed)
Filing
History
2026-03-19
6:35 pm
Sale
2026-03-1713DIRONWOOD PHARMACEUTICALS INC C
IRWD
Sarissa Capital Management LP9,444,944
5.800%
-5,482,900decrease
(-36.73%)
Filing
History
2026-02-17
9:45 pm
Sale
2025-12-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
ARMISTICE CAPITAL LLC16,025,000
9.850%
-125,000decrease
(-0.77%)
Filing
History
2025-11-14
1:54 pm
Purchase
2025-09-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
BANK OF AMERICA CORP
BAC
11,986,267
7.400%
11,986,267increase
(New Position)
Filing
History
2025-11-12
3:34 pm
Sale
2025-09-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
BARCLAYS PLC3,167,713
1.950%
-7,966,144decrease
(-71.55%)
Filing
History
2025-08-15
12:26 pm
Purchase
2025-06-3013GCYCLO THERAPEUTICS INC
CYTH
ARMISTICE CAPITAL LLC16,150,000
9.940%
2,450,000increase
(+17.88%)
Filing
History
2025-08-12
5:58 pm
Purchase
2025-06-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
BARCLAYS PLC11,133,857
6.880%
11,133,857increase
(New Position)
Filing
History
2025-07-07
1:19 pm
Purchase
2025-06-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
VANGUARD GROUP INC16,202,129
10.010%
505,968increase
(+3.22%)
Filing
History
2025-05-15
3:29 pm
Purchase
2025-03-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
ARMISTICE CAPITAL LLC13,700,000
8.470%
4,232,000increase
(+44.70%)
Filing
History
2025-05-13
11:32 am
Sale
2025-03-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
STATE STREET CORP
STT
3,498,289
2.200%
-4,830,528decrease
(-58.00%)
Filing
History
2025-05-02
11:13 am
Sale
2025-03-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
Pacer Advisors Inc.1,789,098
1.120%
-9,941,673decrease
(-84.75%)
Filing
History
2025-05-02
10:42 am
Purchase
2024-12-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
Pacer Advisors Inc.11,730,771
7.320%
11,730,771increase
(New Position)
Filing
History
2025-04-30
11:22 am
Sale
2025-03-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
VANGUARD GROUP INC15,696,161
9.800%
-3,842,394decrease
(-19.67%)
Filing
History
2025-03-07
12:19 pm
Sale
2025-02-2813GIRONWOOD PHARMACEUTICALS INC C
IRWD
BlackRock Inc.
BLK
11,284,399
7.100%
-11,633,925decrease
(-50.76%)
Filing
History
2025-02-14
5:49 pm
Purchase
2024-12-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
ARMISTICE CAPITAL LLC9,468,000
5.920%
1,268,000increase
(+15.46%)
Filing
History
2025-02-05
07:27 am
Sale
2024-12-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
STATE STREET CORP
STT
8,328,817
5.200%
-1,591,048decrease
(-16.04%)
Filing
History
2025-01-31
11:44 am
Sale
2024-12-3113GIRONWOOD PHARMACEUTICALS INC C
IRWD
VANGUARD GROUP INC19,538,555
12.200%
-2,499,542decrease
(-11.34%)
Filing
History
2024-11-14
3:31 pm
Purchase
2024-09-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
ARMISTICE CAPITAL LLC8,200,000
5.130%
8,200,000increase
(New Position)
Filing
History
2024-11-13
2:41 pm
Purchase
2024-05-1513GIRONWOOD PHARMACEUTICALS INC C
IRWD
RENAISSANCE TECHNOLOGIES LLC8,597,198
5.370%
8,597,198increase
(New Position)
Filing
History
2024-11-12
3:47 pm
Unchanged
2024-09-3013GIRONWOOD PHARMACEUTICALS INC C
IRWD
VANGUARD GROUP INC22,038,097
13.790%
0
(Unchanged)
Filing
History
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