John B. Moriarty serves as Executive at ALEXION PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, John B. Moriarty has executed 68 insider transactions totaling $9.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 17, 2025 involved receiving (via award) 56,000 shares valued at $0.
John B. Moriarty currently holds 103,755 shares of ALEXION PHARMACEUTICALS INC (ALXN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John B. Moriarty has been a net seller of ALXN stock. They have purchased $0 and sold $9.4M worth of shares.
John B. Moriarty's most recent insider trade was on Dec 17, 2025, when they sold 56,000 shares at $0.00 per share.
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| $71.87 |
| Discretionary |
| Aug 4, 2025 | RNA | $81.3K | Sale | 2,245 | $36.21 | Discretionary |
| Aug 1, 2024 | RNA | $0 | Award | 25,000 | $N/A | Discretionary |
| Jan 23, 2024 | MRTX | $0 | Disposition | 71,660 | $N/A | Discretionary |
| Jan 23, 2024 | MRTX | $0 | Disposition | 675 | $N/A | Discretionary |
| Aug 9, 2023 | MRTX | $825.0K | Award | 22,297 | $37.00 | Discretionary |
| Jul 2, 2020 | PTLA | $232.1K | Disposition | 12,893 | $18.00 | Discretionary |
| Mar 2, 2020 | PTLA | $41.9K | Payment | 4,327 | $9.68 | Discretionary |
| Feb 3, 2020 | PTLA | $45.7K | Payment | 3,544 | $12.89 | Discretionary |
| Jan 31, 2020 | PTLA | $0 | Award | 16,250 | $N/A | Discretionary |
| Mar 4, 2019 | PTLA | $143.6K | Payment | 4,297 | $33.42 | Discretionary |
| Jan 31, 2019 | PTLA | $0 | Award | 18,750 | $N/A | Discretionary |
| Mar 29, 2018 | PTLA | $0 | Award | 25,000 | $N/A | Discretionary |
| Feb 8, 2018 | ALXN | $250.3K | Sale | 2,163 | $115.70 | Discretionary |
| Feb 8, 2018 | ALXN | $138.8K | Sale | 1,200 | $115.70 | Discretionary |
| Feb 6, 2018 | ALXN | $0 | Award | 6,500 | $N/A | Discretionary |
| Feb 6, 2018 | ALXN | $0 | Award | 21,489 | $N/A | Discretionary |
| Feb 5, 2018 | ALXN | $147.9K | Sale | 1,261 | $117.26 | Discretionary |
| Mar 1, 2017 | ALXN | $37.4K | Sale | 282 | $132.50 | Discretionary |
| Feb 28, 2017 | ALXN | $0 | Award | 6,500 | $N/A | Discretionary |
| Feb 28, 2017 | ALXN | $119.9K | Sale | 910 | $131.71 | Discretionary |
| Feb 27, 2017 | ALXN | $80.3K | Sale | 612 | $131.20 | Discretionary |
| Dec 12, 2016 | ALXN | $123.8K | Sale | 1,044 | $118.61 | Discretionary |
| Aug 8, 2016 | ALXN | $18.5K | Sale | 135 | $137.14 | Discretionary |
| Jun 13, 2016 | ALXN | $124.6K | Sale | 918 | $135.72 | Discretionary |
| Feb 29, 2016 | ALXN | $141 | Sale | 1 | $140.65 | Discretionary |
| Feb 29, 2016 | ALXN | $166.7K | Sale | 1,200 | $138.91 | Discretionary |
| Feb 26, 2016 | ALXN | $0 | Award | 5,000 | $N/A | Discretionary |
| Feb 8, 2016 | ALXN | $18.9K | Sale | 137 | $138.02 | Discretionary |