Northwest Biotherapeutics Inc (NWBO) Insider Ownership

Historic Insider Ownership Trends

Based on data from the past 90 days ending February 07, 2026, Northwest Biotherapeutics's three largest insider shareholders are Chief Technical Officer Marnix L Bosch (119.36K shares), Director Jerry J Jasinowski (28.23K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Marnix L Bosch Chief Technical Officer 119,355 05 Apr, 2023
Jerry J Jasinowski 28,235 05 Dec, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Nov, 2023 Navid Malik Common Stock A 295,000 $0.82 0 D S
17 Nov, 2023 Navid Malik Common Stock A 150,000 $0.82 295,000 D S
16 Nov, 2023 Navid Malik Common Stock A 125,000 $0.84 445,000 D S
03 Apr, 2023 Marnix L Bosch Common Stock A 119,355 $0.25 119,355 D A
03 Apr, 2023 Marnix L Bosch - - 119,355 D
01 Dec, 2022 Jerry J Jasinowski Series C Convertible Preferred Stock A 28,235 $21.25 28,235 D A
01 Dec, 2022 Jerry J Jasinowski - - 28,235 D
03 Feb, 2020 Jerry J Jasinowski Common Stock A 526,316 $0.19 1,891,347 D A
28 Dec, 2018 Linda F Powers Restricted Common Stock, par value $0.001 D 804,146 $0.17 0 I S
28 Dec, 2018 Linda F Powers - - 0 I
27 Dec, 2018 Linda F Powers Restricted Common Stock, par value $0.001 D 3,558,639 $0.17 29,411,760 D S
27 Dec, 2018 Linda F Powers - - 29,411,760 D
30 Jun, 2015 Bioservices, Inc. Cognate Common Stock, par value $0.001 D 650,000 $4.00 19,578,482 D S
30 Jun, 2015 Bioservices, Inc. Cognate Common Stock, par value $0.001 D 1,118,092 $4.22 18,460,390 D S
30 Jun, 2015 Bioservices, Inc. Cognate - - 18,460,390 D
30 Jun, 2015 Bioservices, Inc. Cognate - - 19,578,482 D
29 Dec, 2012 Linda F Powers Common Stock D 59,405 - 10,750,587 I G
29 Dec, 2012 Linda F Powers - - 10,750,587 I
12 Dec, 2012 Linda F Powers Common Stock A 6,468,153 - 10,809,992 I P
12 Dec, 2012 Linda F Powers - - 10,809,992 I