IRWD
IronwoodPharma-A (IRWD)
NASDAQ
$4.00-$0.08 (-1.96%)
Price as of Sep 11, 2026 7:30 PM EDT
  • $674.2M
    Market Cap
  • 211.45%
    1-Year Change
  • Drug Manufacturers - Specialty & Generic
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
13.99%
23.0M
+117,478 (+0.51%)
Dec 31, 2024
BLACKROCK INC.
13.90%
22.9M
-1.3M (-5.60%)
Jun 30, 2024
BLACKROCK, INC.
10.81%
17.8M
+4.4M (+24.88%)
Jun 30, 2026
WELLINGTON MANAGEMENT CO LLP
10.51%
17.3M
-200,716 (-1.16%)
Dec 31, 2021
VANGUARD GROUP INC
9.69%
16.0M
-113,810 (-0.71%)
Dec 31, 2025
ARMISTICE CAPITAL, LLC
8.46%
13.9M
-1.1M (-7.87%)
Jun 30, 2026
SARISSA CAPITAL MANAGEMENT LP
5.58%
9.2M
0 (0.00%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions3.2B (75.83%)
  • Mutual Funds997.8M (23.66%)
  • Insiders21.3M (0.51%)
  • Other0 (0.00%)

Insider Transactions

  • 0.51% (21.3M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 8
    Number of InsiderSelling (last 12 months)
  • $63.3M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Silver Ronald
PFO & PAO
Sell
Jul 07, 2026
$578,062.80
127,890
$4.52
313,680
DENNER ALEXANDER J
Award
Jun 16, 2026
$0.00
63,481
$0.00
323,855
Kessler Marla L
Award
Jun 16, 2026
$0.00
63,481
$0.00
229,364
Duane Jon R
Award
Jun 16, 2026
$0.00
63,481
$0.00
253,820
McHugh Julie
Award
Jun 16, 2026
$0.00
63,481
$0.00
272,320
Currie Mark G
Award
Jun 16, 2026
$0.00
63,481
$0.00
676,900
Shepard Jay
Award
Jun 16, 2026
$0.00
63,481
$0.00
235,036
McHugh Julie
Sell
Jun 16, 2026
$80,459.83
21,571
$3.73
250,749
DENNER ALEXANDER J
Award
Jun 15, 2026
$0.00
4,065
$0.00
260,374
DENNER ALEXANDER J
Sell
Mar 17, 2026
$20.5M
6.7M
$3.05
9.2M
DENNER ALEXANDER J
Sell
Mar 17, 2026
$19,198.00
5,800
$3.31
9.2M
DENNER ALEXANDER J
Award
Mar 13, 2026
$0.00
4,451
$0.00
256,309
Silver Ronald
Principal Accounting Officer
Award
Mar 10, 2026
$0.00
163,934
$0.00
416,570
Gaskins Tammi L
Chief Commercial Officer
Award
Mar 10, 2026
$0.00
136,612
$0.00
350,350
John Minardo
Chief Legal Officer
Award
Mar 10, 2026
$0.00
136,612
$0.00
500,498
MCCOURT Thomas A
Chief Executive Officer
Award
Mar 10, 2026
$0.00
409,836
$0.00
1.9M
Shetzline Michael
SVP, CMO, Head-Res&Drug
Award
Mar 10, 2026
$0.00
136,612
$0.00
658,037
Martini Gregory S.
Chief Financial Officer
Award
Mar 10, 2026
$0.00
136,612
$0.00
297,213
Shetzline Michael
SVP, CMO, Head-Res&Drug
Sell
Feb 24, 2026
$62,263.92
17,012
$3.66
521,425
John Minardo
Chief Legal Officer
Sell
Feb 24, 2026
$69,733.98
19,053
$3.66
363,886
Silver Ronald
Principal Accounting Officer
Sell
Feb 24, 2026
$46,192.86
12,621
$3.66
252,636
Martini Gregory S.
Chief Financial Officer
Sell
Feb 24, 2026
$41,932.62
11,457
$3.66
160,601
MCCOURT Thomas A
Chief Executive Officer
Sell
Feb 24, 2026
$378,905.16
103,526
$3.66
1.5M
Gaskins Tammi L
Chief Commercial Officer
Sell
Feb 24, 2026
$41,134.74
11,239
$3.66
213,738
Shetzline Michael
SVP, CMO, Head-Res&Drug
Sell
Feb 23, 2026
$59,321.70
15,570
$3.81
538,437
John Minardo
Chief Legal Officer
Sell
Feb 23, 2026
$66,442.59
17,439
$3.81
382,939
Silver Ronald
Principal Accounting Officer
Sell
Feb 23, 2026
$44,013.12
11,552
$3.81
265,257
Gaskins Tammi L
Chief Commercial Officer
Sell
Feb 23, 2026
$39,193.47
10,287
$3.81
224,977
MCCOURT Thomas A
Chief Executive Officer
Sell
Feb 23, 2026
$361,024.17
94,757
$3.81
1.6M
Martini Gregory S.
Chief Financial Officer
Sell
Feb 23, 2026
$39,955.47
10,487
$3.81
172,058