Mardi Dier is CFO & VP at PORTOLA PHARMACEUTICALS INC (PTLA). They have made 14 open-market trades across 5 companies since 2014, most recently 2026-03-06.
CIK 0001574591
2 open-market purchases totalling $306K since 2020, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MDGL | 12,850 | $5.8M |
| RARE | 66,695 | $970K |
| ADMS | 10,000 | $82K |
| PRLD | 10,000 | $32K |
| SLRN | 875 | $2K |
| PTLA | 10 | $180 |
| Total | $6.9M |
Shares reported on the most recent Form 4, priced at the 2026-03-06 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 |
|---|---|---|---|---|---|---|---|---|
| MDGL | SELL | 2026-03-06 | 2026-03-06 | $430.87 | $854K | +3.0% | +24.3% | +14.8% |
| MDGL | SELL | 2026-03-02 | 2026-03-02 | $427.21 | $505K | +2.3% | +23.5% | +12.3% |
| MDGL | SELL · 10b5-1 | 2025-12-02 | 2025-12-03 | $577.79 | $3.6M | -3.8% | +1.9% | -26.9% |
| MDGL | SELL · 10b5-1 | 2025-03-10 | 2025-03-12 | $323.04 | $167K | +6.3% | -2.7% | -13.4% |
| MDGL | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $324.96 | $1.3M | +0.4% | -7.8% | -16.6% |
| SLRN | BUY | 2023-05-09 | 2023-05-11 | $18.00 | $116K | -15.1% | -25.3% | +1.3% |
| RARE | SELL | 2022-10-14 | 2022-10-17 | $40.16 | $131K | +1.2% | -9.4% | +9.4% |
| RARE | SELL | 2022-10-12 | 2022-10-14 | $38.22 | $266K | +6.7% | -5.9% | +15.3% |
| RARE | SELL · 10b5-1 | 2022-03-01 | 2022-03-03 | $65.71 | $63K | +1.0% | +23.9% | -26.8% |
| RARE | SELL | 2021-10-12 | 2021-10-14 | $82.00 | $1.1M | -0.8% | -0.7% | -12.2% |
| PRLD | BUY | 2020-09-29 | 2020-09-29 | $19.00 | $190K | +53.5% | +22.5% | +195.1% |
| PTLA | SELL | 2019-04-04 | 2019-04-08 | $37.39 | $3.0M | -7.6% | -12.1% | -28.8% |
| PTLA | SELL | 2017-07-11 | 2017-07-13 | $60.00 | $1.4M | +4.3% | -12.9% | -14.0% |
| PTLA | SELL | 2017-06-27 | 2017-06-28 | $55.46 | $5.2M | +11.4% | +17.0% | -6.1% |
| PTLA | SELL | 2017-06-27 | 2017-06-28 | $55.46 | $5.2M | +11.4% | +17.0% | -6.1% |
| PTLA | SELL | 2017-03-15 | 2017-03-16 | $40.02 | $819K | -1.8% | -4.4% | -7.6% |
| PTLA | SELL · 10b5-1 | 2015-09-18 | 2015-09-21 | $55.00 | $490K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2015-06-08 | 2015-06-09 | $43.00 | $693K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2015-05-27 | 2015-05-27 | $41.00 | $249K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL | 2015-05-12 | 2015-05-12 | $37.88 | $503K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL | 2015-05-11 | 2015-05-12 | $38.21 | $522K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2015-02-23 | 2015-02-23 | $39.95 | $227K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2014-11-25 | 2014-11-25 | $28.23 | $32K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2014-08-25 | 2014-08-25 | $26.27 | $131K | -25.1% | -4.2% | -4.2% |
| PTLA | SELL · 10b5-1 | 2014-07-25 | 2014-07-25 | $24.11 | $121K | -25.1% | -4.2% | -4.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.