Northwest Biotherapeutics Inc (NWBO) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of NWBO are Marnix L Bosch (Chief Technical Officer, 119.36K shares), Jerry J Jasinowski (Director, 28.23K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Marnix L Bosch Chief Technical Officer 119,355 0 05 Apr, 2023
Jerry J Jasinowski 28,235 0 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
29 Aug, 2024 Alton L Boynton STOCK OPTIONS D 1,000,000 $0.00 967,065 D G
09 Aug, 2024 Marnix L Bosch STOCK OPTIONS D 3,000,000 $0.00 4,549,157 D G
08 Aug, 2024 Alton L Boynton STOCK OPTIONS D 1,000,000 $0.00 1,967,065 D G
26 Jul, 2024 Navid Malik Stock Option D 657,895 $0.38 23,339,393 D S
16 Nov, 2023 Navid Malik Common Stock A 125,000 $0.84 445,000 D S
17 Nov, 2023 Navid Malik Common Stock A 150,000 $0.82 295,000 D S
17 Nov, 2023 Navid Malik Common Stock A 295,000 $0.82 0 D S
03 Apr, 2023 Marnix L Bosch Common Stock A 119,355 $0.25 119,355 D A
04 Apr, 2023 Alton L Boynton STOCK OPTIONS D 6,794,191 $0.00 2,967,065 D G
01 Dec, 2022 Jerry J Jasinowski Series C Convertible Preferred Stock A 28,235 $21.25 28,235 D A
19 Jan, 2021 Alton L Boynton Employee Stock Option (Right to Buy) D 3,402,935 $0.00 0 D G
14 Oct, 2020 Linda F Powers Options to purchase Common Stock D 3,000,000 $0.00 29,558,724 D G
02 Jul, 2020 Linda F Powers Warrants to purchase Common Stock A 15,249,474 $0.00 15,249,474 D A
02 Jul, 2020 Marnix L Bosch Options to purchase Common Stock, par value $0.001 A 7,549,157 $0.00 7,549,157 D A
02 Jul, 2020 Alton L Boynton Options to purchase Common Stock, par value $0.001 A 15,697,693 $0.00 15,697,693 D A
02 Jul, 2020 Linda F Powers Options to purchase Common Stock, par value $0.001 A 2,104,905 $0.00 2,104,905 D A
02 Jul, 2020 Alton L Boynton Options to purchase Common Stock, par value $0.001 A 605,160 $0.00 605,160 D A
02 Jul, 2020 Linda F Powers Options to purchase Common Stock, par value $0.001 A 32,558,724 $0.00 32,558,724 D A
02 Jul, 2020 Marnix L Bosch Options to purchase Common Stock, par value $0.001 A 16,630,726 $0.00 16,630,726 D A
02 Jul, 2020 Leslie J. Goldman Options to purchase Common Stock, par value $0.001 A 1,315,566 $0.00 1,315,566 D A