As of September 29, 2026, Ironwood Pharmaceuticals's top three insider holders are Alexander J Denner (Director, 9.19Mn shares), Thomas A Mccourt (Chief Executive Officer, 1.90Mn shares), Mark G Currie (Chief Scientific Officer, 676.90K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Thomas A Mccourt | Chief Executive Officer | 1,898,838 | 0 | 1,898,838 | 22.1% | 12 Mar, 2026 |
| 2 | Michael Shetzline | Svp, Cmo, Head Resdrug | 1,179,462 | 0 | 1,179,462 | 13.7% | 12 Mar, 2026 |
| 3 | Ronald Silver | Pfo Pao | 755,250 | 0 | 755,250 | 8.8% | 08 Jul, 2026 |
| 4 | Mark G Currie | Chief Scientific Officer | 676,900 | 0 | 676,900 | 7.9% | 17 Jun, 2026 |
| 5 | Minardo John | Chief Legal Officer | 500,498 | 0 | 500,498 | 5.8% | 12 Mar, 2026 |
| 6 | Julie Mchugh | Director | 389,122 | 0 | 389,122 | 4.5% | 17 Jun, 2026 |
| 7 | Jason Rickard | Svp, Chief Operating Officer | 376,316 | 0 | 376,316 | 4.4% | 10 Mar, 2023 |
| 8 | Tammi L Gaskins | Chief Commercial Officer | 350,350 | 0 | 350,350 | 4.1% | 12 Mar, 2026 |
| 9 | Alexander J Denner | Director | 327,549 | 0 | 327,549 | 3.8% | 17 Sep, 2026 |
| 10 | Sravan Kumar Emany | Svp, Coo And Cfo | 309,572 | 0 | 309,572 | 3.6% | 20 Nov, 2024 |
| 11 | Gregory S. Martini | Chief Financial Officer | 297,213 | 0 | 297,213 | 3.5% | 12 Mar, 2026 |
| 12 | Andrew Davis | Svp, Chief Business Officer | 284,685 | 0 | 284,685 | 3.3% | 20 Nov, 2024 |
| 13 | Jon R Duane | Director | 253,820 | 0 | 253,820 | 2.9% | 17 Jun, 2026 |
| 14 | Jay Shepard | Director | 235,036 | 0 | 235,036 | 2.7% | 17 Jun, 2026 |
| 15 | Marla L Kessler | Director | 229,364 | 0 | 229,364 | 2.7% | 17 Jun, 2026 |
| 16 | Andrew Dreyfus | Director | 228,313 | 0 | 228,313 | 2.7% | 12 Jun, 2025 |
| 17 | Catherine Moukheibir | Director | 181,425 | 0 | 181,425 | 2.1% | 17 Jun, 2026 |
| 18 | Jeffrey Silber | Svp, Cmo, Head Resdrug | 137,036 | 0 | 137,036 | 1.6% | 22 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 15 Sep, 2026 | Alexander J Denner | Director | Acquired A | 3,694 | $0.00 | $0 | 327,549 | Direct |
| 20 Jul, 2026 | Jeffrey Silber | Svp, Cmo, Head Resdrug | Acquired A | 137,036 | $0.00 | $0 | 137,036 | Direct |
| 07 Jul, 2026 | Ronald Silver | Pfo Pao | Disposed S | 127,890 | $4.52 | $578.06K | 313,680 | Direct |
| 16 Jun, 2026 | Julie Mchugh | Director | Acquired A | 63,481 | $0.00 | $0 | 272,320 | Direct |
| 15 Jun, 2026 | Alexander J Denner | Director | Acquired A | 4,065 | $0.00 | $0 | 260,374 | Direct |
| 16 Jun, 2026 | Mark G Currie | Director | Acquired A | 63,481 | $0.00 | $0 | 676,900 | Direct |
| 16 Jun, 2026 | Jon R Duane | Director | Acquired A | 63,481 | $0.00 | $0 | 253,820 | Direct |
| 16 Jun, 2026 | Marla L Kessler | Director | Acquired A | 63,481 | $0.00 | $0 | 229,364 | Direct |
| 16 Jun, 2026 | Jay Shepard | Director | Acquired A | 63,481 | $0.00 | $0 | 235,036 | Direct |
| 16 Jun, 2026 | Catherine Moukheibir | Director | Acquired A | 63,481 | $0.00 | $0 | 181,425 | Direct |
| 16 Jun, 2026 | Alexander J Denner | Director | Acquired A | 63,481 | $0.00 | $0 | 323,855 | Direct |
| 16 Jun, 2026 | Julie Mchugh | Director | Disposed S | 21,571 | $3.73 | $80.46K | 250,749 | Direct |
| 19 May, 2026 | Ronald Silver | Pfo Pao | Acquired A | 25,000 | $0.00 | $0 | 441,570 | Direct |
| 13 Mar, 2026 | Alexander J Denner | Director | Acquired A | 4,451 | $0.00 | $0 | 256,309 | Direct |
| 17 Mar, 2026 | Alexander J Denner | Director | Disposed S | 6,725,000 | $3.05 | $20.51Mn | 9,194,435 | Indirect |
| 17 Mar, 2026 | Alexander J Denner | Director | Disposed S | 5,800 | $3.31 | $19.20K | 9,188,635 | Indirect |
| 10 Mar, 2026 | Thomas A Mccourt | Chief Executive Officer | Acquired A | 409,836 | $0.00 | $0 | 1,898,838 | Direct |
| 10 Mar, 2026 | Minardo John | Chief Legal Officer | Acquired A | 136,612 | $0.00 | $0 | 500,498 | Direct |
| 10 Mar, 2026 | Ronald Silver | Principal Accounting Officer | Acquired A | 163,934 | $0.00 | $0 | 416,570 | Direct |
| 10 Mar, 2026 | Gregory S. Martini | Chief Financial Officer | Acquired A | 136,612 | $0.00 | $0 | 297,213 | Direct |