Guy Macdonald is Director at TETRAPHASE PHARMACEUTICALS INC (TTPH). They have made 3 open-market trades across 2 companies since 2014, most recently 2026-06-26.
CIK 0001296998
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.
2 open-market purchases totalling $146K since 2016, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SCYX | BUY | 2020-12-21 | 2020-12-23 | $6.25 | $50K | +4.8% | +14.2% | +15.9% |
| TTPH | SELL | 2019-12-05 | 2019-12-09 | $2.27 | $17K | -4.9% | +22.7% | -28.9% |
| SCYX | BUY | 2016-06-24 | 2016-06-28 | $2.39 | $96K | -3.1% | -3.6% | +79.4% |
| TTPH | SELL · 10b5-1 | 2015-09-01 | 2015-09-03 | $41.57 | $416K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-08-06 | 2015-08-07 | $43.65 | $1.3M | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-08-03 | 2015-08-03 | $47.45 | $475K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-07-20 | 2015-07-22 | $50.72 | $761K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-07-01 | 2015-07-02 | $47.92 | $479K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-06-01 | 2015-06-03 | $41.89 | $674K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-05-11 | 2015-05-13 | $41.51 | $830K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-03-02 | 2015-03-04 | $39.65 | $397K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-02-02 | 2015-02-04 | $35.29 | $353K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2015-01-20 | 2015-01-22 | $36.59 | $1.2M | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-09-23 | 2014-09-25 | $18.47 | $185K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-09-17 | 2014-09-18 | $18.00 | $180K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-08-20 | 2014-08-22 | $11.59 | $116K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-07-18 | 2014-07-22 | $10.61 | $159K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-06-17 | 2014-06-19 | $12.28 | $184K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-05-19 | 2014-05-21 | $9.00 | $135K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-04-14 | 2014-04-16 | $9.69 | $145K | -43.2% | -0.6% | -0.6% |
| TTPH | SELL · 10b5-1 | 2014-02-10 | 2014-02-12 | $14.42 | $216K | -43.2% | -0.6% | -0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.