Based on data from the past 90 days ending January 02, 2026, Ironwood Pharmaceuticals's three largest insider shareholders are Director Alexander J Denner (16.57Mn shares), Svp And Cmo And Head Res&Drug Michael Shetzline (554.01K shares), Chief Legal Officer Minardo John (400.38K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Alexander J Denner | 16,566,858 | 17 Dec, 2025 | |
| Thomas A Mccourt | Chief Executive Officer | 1,687,281 | 20 May, 2025 |
| Mark G Currie | 613,419 | 12 Jun, 2025 | |
| Michael Shetzline | Svp And Cmo And Head Res&Drug | 554,007 | 12 Feb, 2025 |
| Mark Mallon | Chief Executive Officer | 470,605 | 02 Mar, 2021 |
| Minardo John | Chief Legal Officer | 400,378 | 13 Aug, 2025 |
| Gina Consylman | Svp And Cfo & Treasurer | 392,616 | 30 Mar, 2021 |
| Jason Rickard | Svp And Chief Operating Officer | 376,316 | 10 Mar, 2023 |
| Sravan Kumar Emany | Svp And Coo And Cfo | 309,572 | 20 Nov, 2024 |
| Andrew Davis | Svp And Chief Business Officer | 284,685 | 20 Nov, 2024 |
| Ronald Silver | Principal Accounting Officer | 276,809 | 13 Aug, 2025 |
| Edward P Owens | 241,720 | 04 Jun, 2021 | |
| Tammi L Gaskins | Chief Commercial Officer | 235,264 | 19 Nov, 2025 |
| Andrew Dreyfus | 228,313 | 12 Jun, 2025 | |
| Julie Mchugh | 208,839 | 12 Jun, 2025 | |
| Jon R Duane | 190,339 | 12 Jun, 2025 | |
| Gregory S. Martini | Chief Financial Officer | 182,545 | 13 Aug, 2025 |
| Jay Shepard | 171,555 | 12 Jun, 2025 | |
| Marla L Kessler | 165,883 | 12 Jun, 2025 | |
| Conor Kilroy | Svp And Gc & Secretary | 122,336 | 02 Mar, 2021 |
| Catherine Moukheibir | 117,944 | 12 Jun, 2025 | |
| Lawrence S Olanoff | 91,395 | 04 Jun, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 15 Dec, 2025 | Alexander J Denner | Class A Common Stock | A | 4,178 | $0.00 | 251,858 | D | A |
| 17 Nov, 2025 | Tammi L Gaskins | Class A Common Stock | D | 6,016 | $3.32 | 235,264 | D | S |
| 15 Sep, 2025 | Alexander J Denner | Class A Common Stock | A | 11,718 | $0.00 | 247,680 | D | A |
| 11 Aug, 2025 | Gregory S. Martini | Class A Common Stock | D | 1,265 | $0.84 | 182,545 | D | S |
| 11 Aug, 2025 | Minardo John | Class A Common Stock | D | 7,754 | $0.84 | 400,378 | D | S |
| 11 Aug, 2025 | Tammi L Gaskins | Class A Common Stock | D | 1,316 | $0.84 | 241,280 | D | S |
| 11 Aug, 2025 | Ronald Silver | Class A Common Stock | D | 2,846 | $0.84 | 276,809 | D | S |
| 11 Aug, 2025 | Minardo John | - | - | 400,378 | D | |||
| 13 Jun, 2025 | Alexander J Denner | Class A Common Stock | A | 24,193 | $0.00 | 235,962 | D | A |
| 10 Jun, 2025 | Jon R Duane | Class A Common Stock | A | 45,000 | $0.00 | 190,339 | D | A |
| 10 Jun, 2025 | Marla L Kessler | Class A Common Stock | A | 45,000 | $0.00 | 165,883 | D | A |
| 10 Jun, 2025 | Andrew Dreyfus | Class A Common Stock | A | 45,000 | $0.00 | 228,313 | D | A |
| 10 Jun, 2025 | Julie Mchugh | Class A Common Stock | A | 45,000 | $0.00 | 208,839 | D | A |
| 10 Jun, 2025 | Catherine Moukheibir | Class A Common Stock | A | 45,000 | $0.00 | 117,944 | D | A |
| 10 Jun, 2025 | Catherine Moukheibir | - | - | 117,944 | D | |||
| 10 Jun, 2025 | Mark G Currie | Class A Common Stock | A | 45,000 | $0.00 | 613,419 | D | A |
| 10 Jun, 2025 | Alexander J Denner | Class A Common Stock | A | 45,000 | $0.00 | 211,769 | D | A |
| 10 Jun, 2025 | Jay Shepard | Class A Common Stock | A | 45,000 | $0.00 | 171,555 | D | A |
| 16 May, 2025 | Tammi L Gaskins | Class A Common Stock | D | 2,563 | $0.58 | 242,596 | D | S |
| 16 May, 2025 | Thomas A Mccourt | - | - | 1,147,281 | D |