Northwest Biotherapeutics Inc
A biotechnology company building personalized cancer vaccines called DCVax that use a patient's own immune cells to target their tumor, rather than a one-size-fits-all drug. Its lead product, DCVax-L, is being developed for glioblastoma, an aggressive brain cancer. The company was founded in 1996 by Dr. Alton Boynton, a scientist from Seattle's Pacific Northwest, the region that inspired its name; he had earlier led research at the Pacific Northwest Research Foundation that later gave rise to the Fred Hutchinson Cancer Center.
Bought 6.47M · Sold 5.98M
Bought 10.36M · Sold 1.23M
Sold 1.77M
Granted 1.03M
Bought 10.0K · Sold 570.0K
Bought 135.4K
Granted 119.4K
Granted 554.6K · Bought 79.3K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Powers Linda FPresident and CEO, Director, 10% owner · 17 transactions | — | 29.41Mas of Dec 2018 | — | 6.47M | 5.98M |
| Hemphill Robert F Jr. +5 co-filers10% owner, Chairperson, CEO, Director, 10% owner · 22 transactions | — | 20.23Mas of Sep 2014 | — | 10.36M | 1.23M |
| Cognate Bioservices, Inc.10% owner · 2 transactions | — | 18.46Mas of Jun 2015 | — | — | 1.77M |
| Boynton Alton LChief Scientific Officer, Director · 14 transactions | — | 2.89Mas of Sep 2011 | 1.03M | — | — |
| Hemphill Robert F Jr. +4 co-filers10% owner, Director, 10% owner · 4 transactions | — | 2.17Mas of Jun 2007 | — | — | — |
| Malik NavidDirector · 4 transactions | — | 295.0Kas of Nov 2023 | — | 10.0K | 570.0K |
| Farmer Robert ADirector · 2 transactions | — | 135.4Kas of Aug 2014 | — | 135.4K | — |
| Bosch Marnix LChief Technical Officer · 1 transaction | — | 119.4Kas of Apr 2023 | 119.4K | — | — |
| Jasinowski Jerry JDirector · 4 transactions | — | 28.2Kas of Dec 2022 | 554.6K | 79.3K | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: +7.51M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.