Mardi Dier serves as Executive at PORTOLA PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Mardi Dier has executed 105 insider transactions totaling $15.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 2, 2026 involved receiving (via award) 40,000 shares valued at $0.
Mardi Dier currently holds 40,000 shares of PORTOLA PHARMACEUTICALS INC (PTLA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mardi Dier has been a net seller of PTLA stock. They have purchased $321.5K and sold $15.3M worth of shares.
Mardi Dier's most recent insider trade was on Jan 2, 2026, when they sold 40,000 shares at $0.00 per share.
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| $574.95 |
| Discretionary |
| Dec 2, 2025 | MDGL | $1.1M | Option Exercise | 4,173 | $251.63 | Discretionary |
| Dec 2, 2025 | MDGL | $202.8K | Sale | 354 | $573.02 | Discretionary |
| Dec 2, 2025 | MDGL | $234.5K | Sale | 410 | $571.99 | Discretionary |
| Dec 2, 2025 | MDGL | $182.5K | Sale | 320 | $570.39 | Discretionary |
| Dec 2, 2025 | MDGL | $138.3K | Sale | 240 | $576.15 | Discretionary |
| Dec 2, 2025 | MDGL | $184.9K | Sale | 320 | $577.81 | Discretionary |
| Dec 2, 2025 | MDGL | $149.3K | Sale | 258 | $578.83 | Discretionary |
| Dec 2, 2025 | MDGL | $278.3K | Sale | 480 | $579.85 | Discretionary |
| Dec 2, 2025 | MDGL | $140.5K | Sale | 240 | $585.44 | Discretionary |
| Dec 2, 2025 | MDGL | $141.1K | Sale | 240 | $587.85 | Discretionary |
| Dec 2, 2025 | MDGL | $94.3K | Sale | 160 | $589.65 | Discretionary |
| Dec 2, 2025 | MDGL | $94.5K | Sale | 160 | $590.37 | Discretionary |
| Dec 2, 2025 | MDGL | $44.0K | Sale | 74 | $595.20 | Discretionary |
| Dec 2, 2025 | MDGL | $47.7K | Sale | 80 | $596.19 | Discretionary |
| Dec 2, 2025 | MDGL | $411.6K | Sale | 717 | $574.00 | Discretionary |
| May 9, 2023 | SLRN | $15.8K | Purchase | 875 | $18.00 | Discretionary |
| May 9, 2023 | SLRN | $15.8K | Purchase | 875 | $18.00 | Discretionary |
| May 9, 2023 | SLRN | $100.0K | Purchase | 5,556 | $18.00 | Discretionary |
| Oct 14, 2022 | RARE | $65.4K | Sale | 1,629 | $40.16 | Discretionary |
| Oct 12, 2022 | RARE | $133.2K | Sale | 3,484 | $38.22 | Discretionary |
| Sep 16, 2022 | RARE | $0 | Award | 20,000 | $N/A | Discretionary |
| Mar 3, 2022 | RARE | $27.1K | Sale | 420 | $64.55 | Discretionary |
| Mar 1, 2022 | RARE | $0 | Award | 14,000 | $N/A | Discretionary |
| Mar 1, 2022 | RARE | $35.6K | Sale | 534 | $66.62 | Discretionary |
| Oct 14, 2021 | RARE | $264.7K | Sale | 3,261 | $81.16 | Discretionary |
| Oct 12, 2021 | RARE | $287.9K | Sale | 3,477 | $82.79 | Discretionary |
| Jun 2, 2021 | ADMS | $0 | Award | 5,000 | $N/A | Discretionary |
| Mar 1, 2021 | RARE | $0 | Award | 5,500 | $N/A | Discretionary |