Susan Morrison is VP at TANDEM DIABETES CARE INC (TNDM). They have made 6 open-market trades across 1 company since 2019, most recently 2026-08-15.
CIK 0001582970
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TNDM | 52,788 | $857K |
Shares reported on the most recent Form 4, priced at the 2026-08-18 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TNDM | SELL | 2021-11-16 | 2021-11-17 | $142.21 | $9.8M | -10.2% | +0.6% | -17.7% |
| TNDM | SELL | 2021-11-03 | 2021-11-05 | $142.00 | $763K | +7.9% | -0.8% | -12.0% |
| TNDM | SELL | 2021-10-13 | 2021-10-14 | $132.01 | $2.7M | -1.7% | +3.4% | -3.4% |
| TNDM | SELL | 2020-08-28 | 2020-09-01 | $114.00 | $2.3M | -8.0% | -2.7% | -19.6% |
| TNDM | SELL | 2020-07-31 | 2020-08-04 | $108.58 | $10.9M | -8.1% | +4.1% | +2.8% |
| TNDM | SELL | 2019-03-01 | 2019-03-04 | $67.79 | $8.1M | +11.1% | -4.4% | +5.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.