Venture capital fund Third Rock Ventures IV, L.P., a 10% owner of Tango Therapeutics, Inc. (TNGX +1.79%), reported the sale of 477,401 shares in an open-market transaction on October 23, 2025, according to an SEC Form 4 filing.Transaction summaryMetricValueShares sold477,401Transaction value$4,846,574.95Post-transaction shares13,386,574Post-transaction value (direct ownership)$100.8 millionTransaction value is based on the SEC Form 4 weighted average purchase price ($10.15), while post-transaction value is ...