David O. Watson serves as Executive at Apellis Pharmaceuticals, Inc., where they oversee executive responsibilities. Since joining the company, David O. Watson has executed 78 insider transactions totaling $6.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 22, 2026 involved selling 7,832 shares valued at $170.5K.
David O. Watson currently holds 88,531 shares of Apellis Pharmaceuticals, Inc. (APLS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David O. Watson has been a net seller of APLS stock. They have purchased $0 and sold $6.0M worth of shares.
David O. Watson's most recent insider trade was on Jan 22, 2026, when they sold 7,832 shares at $21.77 per share.
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| $22.19 |
| Discretionary |
| Jan 7, 2026 | APLS | $0 | Option Exercise | 888 | $N/A | Discretionary |
| Jan 7, 2026 | APLS | $13.3K | Option Exercise | 888 | $14.95 | Discretionary |
| Dec 16, 2025 | APLS | $122.5K | Sale | 5,000 | $24.49 | Discretionary |
| Nov 17, 2025 | APLS | $100.3K | Sale | 5,000 | $20.06 | Discretionary |
| Oct 16, 2025 | APLS | $126.1K | Sale | 5,000 | $25.22 | Discretionary |
| Sep 16, 2025 | APLS | $121.7K | Sale | 5,000 | $24.34 | Discretionary |
| Sep 10, 2025 | APLS | $523.4K | Sale | 20,000 | $26.17 | Discretionary |
| Aug 18, 2025 | APLS | $139.0K | Sale | 5,000 | $27.80 | Discretionary |
| Jul 16, 2025 | APLS | $97.8K | Sale | 5,000 | $19.55 | Discretionary |
| Sep 27, 2024 | APLS | $0 | Gift | 10,569 | $N/A | Discretionary |
| Sep 27, 2024 | APLS | $0 | Gift | 10,569 | $N/A | Discretionary |
| Mar 6, 2024 | APLS | $52.1K | Option Exercise | 3,762 | $13.85 | Discretionary |
| Feb 12, 2024 | APLS | $52.9K | Sale | 781 | $67.77 | Discretionary |
| Jan 29, 2024 | APLS | $58.1K | Sale | 906 | $64.14 | Discretionary |
| Jan 22, 2024 | APLS | $272.0K | Sale | 4,184 | $65.00 | Discretionary |
| Jan 16, 2024 | APLS | $0 | Award | 23,748 | $N/A | Discretionary |
| Jan 16, 2024 | APLS | $283.3K | Sale | 4,240 | $66.81 | Discretionary |
| Dec 19, 2023 | APLS | $91.5K | Sale | 1,605 | $57.00 | Discretionary |
| Dec 19, 2023 | APLS | $109.5K | Option Exercise | 7,905 | $13.85 | Discretionary |
| Dec 19, 2023 | APLS | $132.0K | Sale | 2,300 | $57.38 | Discretionary |
| Jul 3, 2023 | APLS | $765.7K | Sale | 8,510 | $89.98 | Planned |
| Jun 28, 2023 | APLS | $0 | Gift | 12,750 | $N/A | Discretionary |
| Jun 28, 2023 | APLS | $0 | Gift | 12,750 | $N/A | Discretionary |
| Apr 21, 2023 | APLS | $0 | Gift | 67,955 | $N/A | Discretionary |
| Apr 21, 2023 | APLS | $0 | Gift | 67,955 | $N/A | Discretionary |
| Feb 21, 2023 | APLS | $48.3K | Payment | 825 | $58.50 | Discretionary |
| Feb 21, 2023 | APLS | $0 | Award | 9,886 | $N/A | Discretionary |
| Feb 10, 2023 | APLS | $27.2K | Payment | 532 | $51.21 | Discretionary |