Barbara Weber
Chief Executive Officer at Tango Therapeutics Inc.
Sits on 3 boards. Last updated September 27, 2026
Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 3 boards, counting each seat separately. Longest: Tango Therapeutics Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Revolution Medicines Inc. June 8, 202382.6%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 3, 2026 | Tango Therapeutics Inc. | Open-market sale | −30,186 | $12.26 | $370,080 |
| Feb 3, 2026 | Tango Therapeutics Inc. | Open-market sale | −333 | $12.90 | $4,296 |
| Feb 2, 2026 | Tango Therapeutics Inc. | Grant or award | +37,522 | — | — |
| Feb 5, 2025 | Tango Therapeutics Inc. | Open-market sale | −9,013 | $3.16 | $28,481 |
| Feb 4, 2025 | Tango Therapeutics Inc. | Open-market sale | −9,778 | $2.99 | $29,236 |
| Feb 3, 2025 | Tango Therapeutics Inc. | Grant or award | +105,875 | — | — |
| Oct 8, 2024 | Revolution Medicines Inc. | Open-market sale | −5,200 | $48.02 | $249,704 |
| Aug 21, 2024 | Revolution Medicines Inc. | Sold back to the company | −1,808 | $44.83 | $81,053 |
| Jun 20, 2024 | Revolution Medicines Inc. | Grant or award | +4,800 | — | — |
| Feb 7, 2024 | Tango Therapeutics Inc. | Open-market sale | −4,457 | $12.62 | $56,247 |
| Feb 6, 2024 | Tango Therapeutics Inc. | Open-market sale | −4,681 | $12.56 | $58,793 |
| Feb 1, 2024 | Tango Therapeutics Inc. | Grant or award | +87,168 | — | — |
| Sep 1, 2023 | Revolution Medicines Inc. | Option exercise | +3,854 | $1.12 | $4,316 |
| Sep 1, 2023 | Revolution Medicines Inc. | Option exercise | +11,146 | $4.73 | $52,721 |
| Sep 1, 2023 | Revolution Medicines Inc. | Open-market sale | −15,000 | $35.07 | $526,050 |
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