Thomas M. Prescott is Director at ALIGN TECHNOLOGY INC (ALGN). They have made 33 open-market trades across 1 company since 2006, most recently 2026-06-09.
CIK 0001234773
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 $178K since 2006, against 31 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALGN | SELL | 2021-02-11 | 2021-02-16 | $606.80 | $4.6M | -6.1% | -14.8% | -7.3% |
| ALGN | SELL | 2020-11-06 | 2020-11-09 | $486.75 | $4.9M | -8.9% | +5.1% | +24.3% |
| ALGN | SELL | 2020-10-26 | 2020-10-28 | $464.36 | $7.0M | +9.3% | +8.9% | +22.6% |
| ALGN | SELL | 2020-08-19 | 2020-08-20 | $304.37 | $6.1M | +3.1% | +8.8% | +50.1% |
| ALGN | SELL | 2020-07-29 | 2020-07-30 | $301.80 | $21.0M | +2.3% | -0.2% | +47.8% |
| ALGN | SELL | 2019-11-04 | 2019-11-05 | $257.61 | $1.9M | +2.4% | +6.5% | -1.9% |
| ALGN | SELL | 2019-05-23 | 2019-05-28 | $307.14 | $7.4M | +1.7% | -10.7% | -42.1% |
| ALGN | SELL | 2018-04-30 | 2018-05-01 | $253.22 | $24.8M | +14.4% | +32.6% | +39.2% |
| ALGN | SELL | 2018-04-30 | 2018-05-01 | $252.76 | $20.7M | +14.4% | +32.6% | +39.2% |
| ALGN | SELL | 2017-02-21 | 2017-02-23 | $100.98 | $11.2M | +2.6% | +13.4% | +37.9% |
| ALGN | SELL | 2016-11-10 | 2016-11-14 | $90.60 | $6.0M | +6.3% | +8.9% | +7.8% |
| ALGN | SELL | 2016-05-03 | 2016-05-04 | $74.54 | $9.7M | +3.5% | +5.4% | +21.5% |
| ALGN | SELL | 2015-08-17 | 2015-08-17 | $60.50 | $2.4M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2015-07-29 | 2015-07-30 | $61.73 | $9.7M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2014-08-19 | 2014-08-20 | $55.07 | $820K | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2014-02-06 | 2014-02-10 | $54.64 | $12.9M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2013-10-30 | 2013-11-01 | $56.88 | $10.7M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2013-10-22 | 2013-10-23 | $58.00 | $4.3M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2013-02-06 | 2013-02-08 | $31.95 | $12.6M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2012-07-25 | 2012-07-26 | $34.02 | $2.2M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2012-04-30 | 2012-05-01 | $31.87 | $1.3M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2012-02-29 | 2012-02-29 | $25.67 | $8.3M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2011-04-26 | 2011-04-27 | $24.45 | $3.4M | -9.4% | -1.1% | -1.1% |
| ALGN | SELL | 2010-02-02 | 2010-02-03 | $18.16 | $6.0M | -9.4% | -1.1% | -1.1% |
| ALGN | BUY | 2008-02-13 | 2008-02-13 | $13.30 | $100K | -9.4% | -1.1% | -1.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.