Glenn P. Muir is Executive VP and CFO at HOLOGIC INC (HOLX). They have made 11 open-market trades across 3 companies since 2006, most recently 2026-08-18.
CIK 0001181190
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.
8 open-market purchases totalling $2.2M since 2008, against 3 sales. Across 8 scored buys the stock is up 16.6% at ninety days, and 10.4 points ahead of the S&P over the same stretch.
8 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 38% | 63% |
| Avg Move | +3.0% | +0.6% | +16.6% |
| Alpha | +2.8% | -1.6% | +10.4% |
| Scored | 8 | 8 | 8 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| STIM | BUY | 2024-09-05 | 2024-09-06 | $0.80 | $20K | +19.6% | +1.3% | +50.6% |
| STIM | BUY | 2024-08-28 | 2024-08-30 | $0.85 | $21K | -17.7% | -15.5% | +11.2% |
| STIM | BUY | 2024-08-20 | 2024-08-21 | $1.00 | $25K | -13.5% | -7.0% | -24.5% |
| STIM | BUY | 2024-08-14 | 2024-08-16 | $0.75 | $19K | -26.8% | -35.0% | -34.2% |
| GTHX | BUY | 2020-11-18 | 2020-11-19 | $13.50 | $675K | +60.0% | +59.0% | +118.0% |
| STIM | BUY | 2018-07-02 | 2018-07-05 | $17.00 | $680K | +1.9% | -1.9% | +10.6% |
| GTHX | BUY | 2017-05-22 | 2017-05-24 | $15.00 | $300K | +8.4% | +5.4% | +2.3% |
| HOLX | SELL | 2014-05-08 | 2014-05-12 | $24.26 | $1.2M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL | 2014-05-05 | 2014-05-07 | $23.29 | $4.6M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL | 2014-03-14 | 2014-03-17 | $21.51 | $3.4M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-10-29 | 2013-10-31 | $22.32 | $3.1M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-10-15 | 2013-10-17 | $22.12 | $619K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-09-16 | 2013-09-18 | $20.45 | $573K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-08-15 | 2013-08-19 | $22.49 | $630K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-07-15 | 2013-07-17 | $19.78 | $554K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2013-06-17 | 2013-06-18 | $21.42 | $600K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2012-09-12 | 2012-09-14 | $19.85 | $852K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2012-09-05 | 2012-09-06 | $19.96 | $1.4M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2012-08-22 | 2012-08-23 | $19.66 | $1.4M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2012-08-08 | 2012-08-10 | $19.69 | $1.4M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2011-11-10 | 2011-11-14 | $17.09 | $1.7M | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2009-11-02 | 2009-11-03 | $14.80 | $1.0M | -7.6% | -1.4% | -1.4% |
| HOLX | BUY | 2008-08-07 | 2008-08-08 | $19.80 | $495K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2008-02-06 | 2008-02-07 | $64.06 | $320K | -7.6% | -1.4% | -1.4% |
| HOLX | SELL · 10b5-1 | 2007-05-02 | 2007-05-02 | $60.00 | $600K | -7.6% | -1.4% | -1.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.