Mark James Litton serves as Executive at ALDER BIOPHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Mark James Litton has executed 66 insider transactions totaling $5.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 2, 2026 involved selling 2,586 shares valued at $17.8K.
Mark James Litton currently holds 40,828 shares of ALDER BIOPHARMACEUTICALS INC (ALDR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark James Litton has been a net seller of ALDR stock. They have purchased $0 and sold $5.6M worth of shares.
Mark James Litton's most recent insider trade was on Jan 2, 2026, when they sold 2,586 shares at $6.88 per share.
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| $N/A |
| Discretionary |
| Dec 31, 2025 | ATHA | $0 | Option Exercise | 10,834 | $N/A | Discretionary |
| Dec 24, 2025 | ATHA | $0 | Award | 133,526 | $N/A | Discretionary |
| Jul 1, 2025 | ATHA | $7.3K | Sale | 25,123 | $0.29 | Discretionary |
| Jun 30, 2025 | ATHA | $0 | Option Exercise | 108,334 | $N/A | Discretionary |
| Sep 5, 2024 | ATHA | $2.9K | Sale | 5,032 | $0.57 | Discretionary |
| Sep 3, 2024 | ATHA | $0 | Award | 20,000 | $N/A | Discretionary |
| Jan 5, 2024 | ATHA | $14.0K | Sale | 4,820 | $2.91 | Discretionary |
| Jan 5, 2024 | ATHA | $14.0K | Sale | 4,820 | $2.91 | Discretionary |
| Jan 4, 2024 | ATHA | $0 | Award | 20,000 | $N/A | Discretionary |
| Jan 4, 2024 | ATHA | $0 | Award | 20,000 | $N/A | Discretionary |
| Nov 18, 2022 | ATHA | $1.8K | Award | 662 | $2.74 | Discretionary |
| Jun 23, 2022 | ATHA | $21.4K | Sale | 7,960 | $2.69 | Discretionary |
| Jun 22, 2022 | ATHA | $0 | Award | 20,000 | $N/A | Discretionary |
| May 18, 2022 | ATHA | $5.3K | Award | 757 | $7.06 | Discretionary |
| Nov 18, 2021 | ATHA | $11.1K | Award | 885 | $12.51 | Discretionary |
| Aug 17, 2021 | ATHA | $68.1K | Option Exercise | 50,440 | $1.35 | Discretionary |
| May 18, 2021 | ATHA | $12.5K | Award | 867 | $14.45 | Discretionary |
| Sep 22, 2020 | ATHA | $0 | Conversion | 6,563 | $N/A | Discretionary |
| Sep 22, 2020 | ATHA | $0 | Conversion | 6,563 | $N/A | Discretionary |
| Sep 22, 2020 | ATHA | $0 | Conversion | 13,126 | $N/A | Discretionary |
| Sep 22, 2020 | ATHA | $0 | Conversion | 6,563 | $N/A | Discretionary |
| Jun 1, 2018 | ALDR | $81.6K | Sale | 4,474 | $18.24 | Discretionary |
| Jun 1, 2018 | ALDR | $22.5K | Option Exercise | 22,727 | $0.99 | Discretionary |
| Jun 1, 2018 | ALDR | $323.8K | Sale | 18,253 | $17.74 | Discretionary |
| Nov 13, 2017 | ALDR | $27.3K | Option Exercise | 16,519 | $1.65 | Discretionary |
| Nov 13, 2017 | ALDR | $178.4K | Sale | 16,519 | $10.80 | Discretionary |
| Oct 16, 2017 | ALDR | $203.7K | Sale | 16,520 | $12.33 | Discretionary |
| Oct 16, 2017 | ALDR | $27.3K | Option Exercise | 16,520 | $1.65 | Discretionary |