Ironwood Pharmaceuticals, Inc. (IRWD) has 20 known insider and institutional holders on record. The largest holder is MCCOURT Thomas A with 1,898,838 shares. Other notable holders include Shetzline Michael and Currie Mark G.
Over the last 12 months, insiders have made 40 transactions in IRWD stock — 20 buys (valued at $62.26K) and 20 sells (valued at $1.41M).
IRWD Insider Ownership
Top Holder
MCCOURT Thomas A
1,898,838 shares
Buys (12 mo)
20
$62.26K value
Sells (12 mo)
20
$1.41M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Mccourt Thomas A |
Chief Executive Officer |
1,898,838 |
2026-03-12 |
|
| 2 |
Shetzline Michael |
SVP, CMO, Head-res&drug |
658,037 |
2026-03-12 |
|
| 3 |
Currie Mark G |
Director |
613,419 |
2025-06-12 |
|
| 4 |
John Minardo |
Chief Legal Officer |
500,498 |
2026-03-12 |
|
| 5 |
Mallon Mark |
Chief Executive Officer |
470,605 |
2021-03-02 |
|
| 6 |
Silver Ronald |
Principal Accounting Officer |
416,570 |
2026-03-12 |
|
| 7 |
Consylman Gina |
SVP, CFO & Treasurer |
392,616 |
2021-03-30 |
|
| 8 |
Gaskins Tammi L |
Chief Commercial Officer |
350,350 |
2026-03-12 |
|
| 9 |
Emany Sravan Kumar |
SVP, COO and CFO |
309,572 |
2024-11-20 |
|
| 10 |
Martini Gregory S. |
Chief Financial Officer |
297,213 |
2026-03-12 |
|
| 11 |
Davis Andrew |
SVP, Chief Business Officer |
284,685 |
2024-11-20 |
|
| 12 |
Gilbert Halley E |
Chief Admin Officer & SVP |
265,991 |
2020-02-25 |
|
| 13 |
Denner Alexander J |
Director |
256,309 |
2026-03-17 |
|
| 14 |
Owens Edward P |
Director |
241,720 |
2021-06-04 |
|
| 15 |
Dreyfus Andrew |
Director |
228,313 |
2025-06-12 |
|
| 16 |
Mchugh Julie |
Director |
208,839 |
2025-06-12 |
|
| 17 |
Duane Jon R |
Director |
190,339 |
2025-06-12 |
|
| 18 |
Shepard Jay |
Director |
171,555 |
2025-06-12 |
|
| 19 |
Kessler Marla L |
Director |
165,883 |
2025-06-12 |
|
| 20 |
Fanucci Marsha |
Director |
132,663 |
2019-04-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-17 |
Denner Alexander J |
Director |
Informative Sell |
5,800 |
$3.31 |
$19.2K |
| 2026-03-13 |
Denner Alexander J |
Director |
RSU Award |
4,451 |
- |
- |
| 2026-03-10 |
Gaskins Tammi L |
Chief Commercial Officer |
RSU Award |
136,612 |
- |
- |
| 2026-03-10 |
Martini Gregory S. |
Chief Financial Officer |
RSU Award |
136,612 |
- |
- |
| 2026-03-10 |
John Minardo |
Chief Legal Officer |
RSU Award |
136,612 |
- |
- |
| 2026-03-10 |
Silver Ronald |
Principal Accounting Officer |
RSU Award |
163,934 |
- |
- |
| 2026-03-10 |
Shetzline Michael |
SVP, CMO, Head-res&drug |
RSU Award |
136,612 |
- |
- |
| 2026-03-10 |
Mccourt Thomas A |
Chief Executive Officer |
RSU Award |
409,836 |
- |
- |
| 2026-02-24 |
Gaskins Tammi L |
Chief Commercial Officer |
Informative Sell |
11,239 |
$3.66 |
$41.13K |
| 2026-02-23 |
Gaskins Tammi L |
Chief Commercial Officer |
Informative Sell |
10,287 |
$3.81 |
$39.19K |
| 2026-02-24 |
Martini Gregory S. |
Chief Financial Officer |
Informative Sell |
11,457 |
$3.66 |
$41.93K |
| 2026-02-23 |
Martini Gregory S. |
Chief Financial Officer |
Informative Sell |
10,487 |
$3.81 |
$39.96K |
| 2026-02-24 |
John Minardo |
Chief Legal Officer |
Informative Sell |
19,053 |
$3.66 |
$69.73K |
| 2026-02-23 |
John Minardo |
Chief Legal Officer |
Informative Sell |
17,439 |
$3.81 |
$66.44K |
| 2026-02-24 |
Silver Ronald |
Principal Accounting Officer |
Informative Sell |
12,621 |
$3.66 |
$46.19K |
| 2026-02-23 |
Silver Ronald |
Principal Accounting Officer |
Informative Sell |
11,552 |
$3.81 |
$44.01K |
| 2026-02-24 |
Shetzline Michael |
SVP, CMO, Head-res&drug |
Informative Buy |
17,012 |
$3.66 |
$62.26K |
| 2026-02-23 |
Shetzline Michael |
SVP, CMO, Head-res&drug |
Informative Sell |
15,570 |
$3.81 |
$59.32K |
| 2026-02-24 |
Mccourt Thomas A |
Chief Executive Officer |
Informative Sell |
103,526 |
$3.66 |
$378.91K |
| 2026-02-23 |
Mccourt Thomas A |
Chief Executive Officer |
Informative Sell |
94,757 |
$3.81 |
$361.02K |
| 2026-01-05 |
Silver Ronald |
Principal Accounting Officer |
Informative Sell |
35,416 |
$4.60 |
$162.91K |
| 2025-12-15 |
Denner Alexander J |
10 Percent Owner |
RSU Award |
4,178 |
- |
- |
| 2025-11-17 |
Gaskins Tammi L |
Chief Commercial Officer |
Informative Sell |
6,016 |
$3.32 |
$19.97K |
| 2025-09-15 |
Denner Alexander J |
10 Percent Owner |
RSU Award |
11,718 |
- |
- |
| 2025-08-11 |
Gaskins Tammi L |
Chief Commercial Officer |
Informative Sell |
1,316 |
$0.84 |
$1.11K |