Barbara Weber
Chief Executive Officer at Tango Therapeutics Inc.
Sits on 3 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 8 years
- Director since
- 2023
8 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.
-
Tango Therapeutics Inc. June 5, 202497.4%
-
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 |
Questions about Barbara Weber
What boards is Barbara Weber on?
Barbara Weber sits on the boards of Parabilis Medicines Inc., Revolution Medicines Inc. and Tango Therapeutics Inc.
What company is Barbara Weber the CEO of?
Barbara Weber is Chief Executive Officer of Tango Therapeutics Inc.
How long has Barbara Weber served on boards?
Our records show at least 8 years of board service across 3 boards, the earliest from 2023.
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