Backer Marianne De

Director, Arrowhead Pharmaceuticals.

Companies

VIR BiotechnologyPresident Apr 7, 2026 to now¹
VIR BiotechnologyBoard member Feb 26, 2024 to now²
VIR BiotechnologyChief executive officer Apr 4, 2023 to now³
Kronos Bio, Inc.Board member Jan 27, 2021 to Jun 26, 2023⁴
Arrowhead PharmaceuticalsBoard member Dec 27, 2019 to Jan 11, 2023⁵

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

VIR Biotechnology VIR1,001,263 shares⁶$10.2M at $10.23Apr 29, 2026
Arrowhead Pharmaceuticals ARWR31,267 shares⁷$1.8M at $56.73Jan 10, 2023
Kronos Bio, Inc.14,083 shares⁸Jun 22, 2022

As of each latest filing. The line shows shares held over time.

Recent filings

Apr 29, 2026Other 233,532 shares of VIR Biotechnology⁶
Apr 29, 2026Other 233,532 shares of VIR Biotechnology⁶
Apr 6, 2026Sold 72,559 shares at $9.16 of VIR Biotechnology⁹
Feb 24, 2026Sold 14,762 shares at $9.53 of VIR Biotechnology¹⁰
Feb 23, 2026Sold 19,039 shares at $7.45 of VIR Biotechnology¹¹
Feb 22, 2026Granted 285,000 shares of VIR Biotechnology¹¹
Apr 3, 2025Sold 79,712 shares at $5.95 of VIR Biotechnology¹²
Feb 24, 2025Sold 16,122 shares at $9.45 of VIR Biotechnology¹³
Feb 22, 2025Granted 240,000 shares of VIR Biotechnology¹³
Jun 12, 2024Other 53,118 shares of VIR Biotechnology¹⁴
Jun 12, 2024Other 53,118 shares of VIR Biotechnology¹⁴
Apr 3, 2024Sold 72,995 shares at $9.46 of VIR Biotechnology¹⁵
Feb 22, 2024Granted 175,000 shares of VIR Biotechnology¹⁶
Apr 3, 2023Granted 576,452 shares of VIR Biotechnology¹⁷
Jan 10, 2023Granted 7,867 shares of Arrowhead Pharmaceuticals⁷
Jun 22, 2022Granted 11,333 shares of Kronos Bio, Inc.⁸
Jan 7, 2022Granted 6,400 shares of Arrowhead Pharmaceuticals¹⁸
Jan 3, 2022Sold 272 shares at $66.25 of Arrowhead Pharmaceuticals¹⁹
Jan 3, 2022Sold 1,984 shares at $65.01 of Arrowhead Pharmaceuticals¹⁹
Jan 3, 2022Sold 2,244 shares at $64.25 of Arrowhead Pharmaceuticals¹⁹
Dec 1, 2021Bought 1,150 shares at $11.57 of Kronos Bio, Inc.²⁰

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARVIR Biotechnology, President
2
SEC EDGARVIR Biotechnology, Board member
3
SEC EDGARVIR Biotechnology, Chief executive officer
4
SEC EDGARKronos Bio, Inc., Board member
5
SEC EDGARArrowhead Pharmaceuticals, Board member
6
SEC EDGARVIR Biotechnology shares after the filing of Apr 29, 2026
7
SEC EDGARArrowhead Pharmaceuticals shares after the filing of Jan 10, 2023
8
SEC EDGARKronos Bio, Inc. shares after the filing of Jun 22, 2022
9
SEC EDGARForm 4 filed Apr 7, 2026
10
SEC EDGARForm 4 filed Feb 26, 2026
11
SEC EDGARForm 4 filed Feb 24, 2026
12
SEC EDGARForm 4 filed Apr 4, 2025
13
SEC EDGARForm 4 filed Feb 25, 2025
14
SEC EDGARForm 4 filed Jun 12, 2024
15
SEC EDGARForm 4 filed Apr 4, 2024
16
SEC EDGARForm 4 filed Feb 26, 2024
17
SEC EDGARForm 4 filed Apr 4, 2023
18
SEC EDGARForm 4 filed Jan 7, 2022
19
SEC EDGARForm 4 filed Jan 4, 2022
20
SEC EDGARForm 4 filed Dec 2, 2021