Halley E. Gilbert is CLO at IRONWOOD PHARMACEUTICALS INC (IRWD). They have made 11 open-market trades across 2 companies since 2016, most recently 2026-06-15.
CIK 0001601360
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| NEO | 147,396 | $2.5M |
| IRWD | 278,566 | $972K |
| ARQT | 27,901 | $805K |
| PCVX | 12,481 | $794K |
| Total | $5.0M |
Shares reported on the most recent Form 4, priced at the 2026-06-16 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ARQT | SELL | 2025-11-20 | 2025-11-21 | $27.55 | $911K | +4.4% | +0.2% | -6.3% |
| PCVX | SELL · 10b5-1 | 2024-06-03 | 2024-06-05 | $73.00 | $1.3M | -1.7% | +6.4% | +50.7% |
| IRWD | SELL | 2020-02-21 | 2020-02-25 | $11.63 | $250K | +9.8% | -9.5% | +5.0% |
| IRWD | SELL | 2020-01-31 | 2020-02-04 | $12.05 | $723K | -5.3% | -3.4% | -19.9% |
| IRWD | SELL | 2019-07-26 | 2019-07-30 | $10.00 | $200K | -18.4% | -19.7% | -19.1% |
| IRWD | SELL · 10b5-1 | 2019-05-10 | 2019-05-14 | $10.53 | $43K | +14.6% | +13.4% | -6.0% |
| IRWD | SELL | 2019-02-20 | 2019-02-22 | $14.31 | $147K | -8.2% | -4.7% | -23.2% |
| IRWD | SELL | 2018-07-03 | 2018-07-05 | $19.75 | $1.2M | +6.8% | -6.9% | -2.4% |
| IRWD | SELL · 10b5-1 | 2018-02-21 | 2018-02-22 | $14.66 | $113K | -4.2% | +3.8% | +16.3% |
| IRWD | SELL | 2017-06-22 | 2017-06-26 | $19.75 | $691K | +1.1% | -10.0% | -15.1% |
| IRWD | SELL · 10b5-1 | 2017-02-22 | 2017-02-24 | $16.94 | $85K | +9.3% | +5.9% | +17.6% |
| IRWD | SELL | 2017-02-14 | 2017-02-15 | $16.75 | $1.3M | -1.5% | +2.4% | +4.8% |
| IRWD | SELL | 2016-11-11 | 2016-11-15 | $16.75 | $235K | -5.3% | -7.2% | -1.6% |
| IRWD | SELL | 2016-05-25 | 2016-05-27 | $12.19 | $247K | +4.6% | -2.0% | +8.6% |
| IRWD | SELL | 2016-05-25 | 2016-05-27 | $12.19 | $125K | +4.6% | -2.0% | +8.6% |
| IRWD | SELL · 10b5-1 | 2016-02-24 | 2016-02-26 | $8.50 | $24K | +12.0% | +5.2% | +27.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.