David Siewers Insider Trading Transactions
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General | Insider Transactions | Monthly Overview
Get the latest insider transactions of David Siewers. David Siewers is CFO and Treasurer in SELECTA BIOSCIENCES INC ($SELB) and Chief Financial Officer in SELECTA BIOSCIENCES INC ($SELB).
Latest Insider Trading Transactions of David Siewers
| 1 Week | 2 Weeks | 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | |
|---|---|---|---|---|---|---|---|
| No. of Purchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Value of Purchases ($) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| No. of Sales | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Value of Sales ($) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Option Exercise | M | 0.63 | 14,230 | 8,965 | 5,000 | |
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Option Exercise | M | 0.63 | 2,194 | 1,382 | 0 | |
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Sell | S | 20.00 | 14,230 | 284,600 | 0 | 14.2 K to 0 (-100.00 %) |
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Buy | M | 0.63 | 14,230 | 8,965 | 14,230 | 0 to 14.2 K |
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Sell | S | 20.00 | 2,194 | 43,880 | 0 | 2.2 K to 0 (-100.00 %) |
| Sep 22 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Buy | M | 0.63 | 2,194 | 1,382 | 2,194 | 0 to 2.2 K |
| Jul 11 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | CFO and Treasurer | Option Exercise | A | 19.33 | 20,000 | 386,600 | 20,000 | |
| Jul 05 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Option Exercise | M | 0.63 | 7,420 | 4,675 | 2,194 | |
| Jul 05 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Sell | S | 20.00 | 7,420 | 148,405 | 0 | 7.4 K to 0 (-100.00 %) |
| Jul 05 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Buy | M | 0.63 | 7,420 | 4,675 | 7,420 | 0 to 7.4 K |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Option Exercise | M | 0.63 | 5,770 | 3,635 | 9,614 | |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Option Exercise | M | 0.47 | 3,846 | 1,808 | 0 | |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Sell | S | 20.00 | 36 | 720 | 0 | 36 to 0 (-100.00 %) |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Sell | S | 20.00 | 9,616 | 192,322 | 36 | 9.7 K to 36 (-99.63 %) |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Buy | M | 0.63 | 5,770 | 3,635 | 9,652 | 3.9 K to 9.7 K (+148.63 %) |
| Jun 30 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Buy | M | 0.47 | 3,846 | 1,808 | 3,882 | 36 to 3.9 K (+10,683.33 %) |
| Jun 28 2017 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Sell | S | 20.00 | 6,886 | 137,720 | 36 | 6.9 K to 36 (-99.48 %) |
| Jun 23 2016 | SELB | SELECTA BIOSCIENCE ... | Siewers David | Chief Financial Off ... | Option Exercise | A | 14.00 | 33,888 | 474,432 | 33,888 |
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