Insider · CIK 0001457477
David Hallal
Files at: SRRK, KLRS, ALXN. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026 GForm 4 → | Sep 23, 4:36 pm EDT | Scholar Rock Holding CorpSRRK | 36,652 | — | — | 1,602,382 | — | |
| Aug 8, 2016 SForm 4 → | Aug 10, 6:22 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 332 | $137.14 | $45,530 | 189,266 | −0.18% | plan? |
| Apr 1, 2016 SForm 4 → | Apr 5, 5:26 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 1,414 | $135.88 | $192,132 | 189,598 | −0.74% | plan? |
| Feb 29, 2016 SForm 4 → | Mar 1, 6:32 pm EST | ALEXION PHARMACEUTICALS INCALXN | 2,014 | $138.93 | $279,800 | 191,012 | −1.04% | plan? |
| Feb 26, 2016 AForm 4 → | Mar 1, 6:32 pm EST | ALEXION PHARMACEUTICALS INCALXN | 20,000 | — | — | 193,026 | — | plan? |
| Feb 4, 2016 AForm 4 → | Feb 8, 7:57 pm EST | ALEXION PHARMACEUTICALS INCALXN | 41,136 | — | — | 183,694 | — | plan? |
| Feb 4, 2016 SForm 4 → | Feb 8, 7:57 pm EST | ALEXION PHARMACEUTICALS INCALXN | 11,297 | $140.50 | $1,587,275 | 173,026 | −6.13% | plan? |
| Aug 7, 2015 SForm 4 → | Aug 11, 5:53 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 329 | $190.01 | $62,513 | 143,187 | −0.23% | plan? |
| Aug 4, 2015 SForm 4 → | Aug 5, 6:09 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 612 | $196.52 | $120,270 | 143,516 | −0.42% | plan? |
| Mar 31, 2015 AForm 4 → | Apr 2, 6:15 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 11,270 | — | — | 144,128 | — | plan? |
| Mar 2, 2015 SForm 4 → | Mar 3, 9:11 pm EST | ALEXION PHARMACEUTICALS INCALXN | 730 | $180.34 | $131,648 | 132,858 | −0.55% | plan? |
| Feb 27, 2015 AForm 4 → | Mar 3, 9:11 pm EST | ALEXION PHARMACEUTICALS INCALXN | 9,555 | — | — | 133,588 | — | plan? |
| Feb 10, 2015 SForm 4 → | Feb 12, 9:06 pm EST | ALEXION PHARMACEUTICALS INCALXN | 1,980 | $171.15 | $338,877 | 124,033 | −1.57% | plan? |
| Feb 9, 2015 SForm 4 → | Feb 9, 8:46 pm EST | ALEXION PHARMACEUTICALS INCALXN | 2,920 | $173.93 | $507,876 | 126,013 | −2.26% | plan? |
| Feb 5, 2015 AForm 4 → | Feb 9, 8:46 pm EST | ALEXION PHARMACEUTICALS INCALXN | 11,690 | — | — | 128,933 | — | plan? |
| Feb 3, 2015 SForm 4 → | Feb 5, 8:10 pm EST | ALEXION PHARMACEUTICALS INCALXN | 1,373 | $174.18 | $239,148 | 117,243 | −1.16% | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 3, 2026 AForm 4 → | Jun 4, 4:28 pm EDT | Kalaris Therapeutics, Inc.KLRS | 9,000 | — | — | 9,000 | — | |
| Jun 22, 2018 AForm 4 → | Jun 26, 5:30 pm EDT | Scholar Rock Holding CorpSRRK | 20,316 | — | — | 20,316 | — | |
| Feb 26, 2016 AForm 4 → | Mar 1, 6:32 pm EST | ALEXION PHARMACEUTICALS INCALXN | 131,000 | $140.16 | $18,360,960 | 131,000 | — | |
| Mar 31, 2015 AForm 4 → | Apr 2, 6:15 pm EDT | ALEXION PHARMACEUTICALS INCALXN | 49,275 | $173.30 | $8,539,358 | 49,275 | — | |
| Feb 27, 2015 AForm 4 → | Mar 3, 9:11 pm EST | ALEXION PHARMACEUTICALS INCALXN | 39,826 | — | — | 7,626 | — |