🕵️ Tango Therapeutics, Inc. ($TNGX)
SEC insider & ownership activity, last 12 months · CIK 1819133 · every row links its SEC filing
Over the last 12 months insiders sold $31.8M with no open-market buying against it. Third Rock Ventures IV, L.P. sold $26.4M through a program of 7 sale notices averaging $3.6M (Aug–Oct). 2 planned sales are pending, the largest $51.5M (Daniella Beckman). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 4 sellers, $31.8M (24 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Third Rock Ventures IV, L.P. | 0 | – | 7 | $26.4M | Oct 23, 2025 |
| Crystal Adam | 0 | – | 13 | $5.0M | Jul 1, 2026 |
| Weber Barbara | 0 | – | 2 | $374K | Feb 3, 2026 |
| Daniella Beckman | 0 | – | 2 | $127K | Feb 3, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Aaron I. Davis | 10.0% | 13D | Dec 30, 2024 | filing ↗ | |
| TCG Crossover GP II, L.P. | 10.0% | 13G | Feb 17, 2026 | filing ↗ | |
| Boxer Capital Management, LLC | 9.7% | 13D | Dec 30, 2024 | filing ↗ | |
| RTW Investments, LP | 9.3% | 13G | May 15, 2026 | filing ↗ | |
| Roderick Wong | 9.3% | 13G | May 15, 2026 | filing ↗ | |
| Adage Capital Management, L.P. | 9.0% | 13G | May 13, 2026 | filing ↗ | |
| Robert Atchinson | 9.0% | 13G | May 13, 2026 | filing ↗ | |
| Phillip Gross | 9.0% | 13G | May 13, 2026 | filing ↗ | |
| TCG Crossover GP II, LLC | 8.1% | 13G | May 15, 2026 | filing ↗ | |
| TCG Crossover Fund II, L.P. | 8.1% | 13G | May 15, 2026 | filing ↗ | |
| Chen Yu | 8.1% | 13G | May 15, 2026 | filing ↗ | |
| Joshua J. Dapice | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Dreyfuss, Philip D. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Hannah E. Dunn | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Gehani, Varun N. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Giauque, Nicolas | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Husen, Avner A. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| KIM, David T. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| LINN, Michael G. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| LUO Patrick (CHENG) | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Roberts, JR., Thomas G. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Edric C. Saito | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Daniel S. Short | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Spokes, Andrew J. M. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Warren, JOHN R. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Wehrly, MARK C. | 7.8% | 13G | May 11, 2026 | filing ↗ | |
| Farallon Partners, L.L.C. | 7.6% | 13G | May 11, 2026 | filing ↗ | |
| FMR LLC | 6.9% | 13G | May 6, 2026 | filing ↗ | |
| Abigail P. Johnson | 6.9% | 13G | May 6, 2026 | filing ↗ | |
| Blackrock, Inc. | 6.3% | 13G | Jan 21, 2026 | filing ↗ | |
| Woodline Partners LP | 5.6% | 13G | May 15, 2026 | filing ↗ | |
| Nextech Crossover I GP S.A. R.L. | 5.1% | 13G | May 15, 2026 | filing ↗ | |
| Nextech Crossover I Scsp | 5.1% | 13G | May 15, 2026 | filing ↗ | |
| Ian Charoub | 5.1% | 13G | May 15, 2026 | filing ↗ | |
| Costas Constantinides | 5.1% | 13G | May 15, 2026 | filing ↗ | |
| Rocco Sgobbo | 5.1% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Nextech Crossover I Scsp | $113.4M | Jun 17, 2026 | filing ↗ |
| Daniella Beckman | $51.5M | Jun 11, 2026 | filing ↗ |
| Daniella Beckman | $133K | Jun 10, 2026 | filing ↗ |
| Adam Crystal | $1.4M | May 1, 2026 | filing ↗ |
| Adam Crystal | $1.8M | Mar 25, 2026 | filing ↗ |
| Adam Crystal | $250K | Mar 5, 2026 | filing ↗ |
| Adam Crystal | $700K | Feb 25, 2026 | filing ↗ |
| Third Rock Ventures IV, L.P. | $3.6M | Oct 23, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $3.9M | Sep 25, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $2.7M | Sep 16, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $609K | Sep 8, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $4.5M | Sep 5, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $2.1M | Aug 22, 2025 | filing ↗ |
| Third Rock Ventures IV, L.P. | $7.7M | Aug 19, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jun 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 19, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 8, 2026 | filing ↗ |
| Other events (8.01) | Jun 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 8, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 4, 2026 | filing ↗ |
| Earnings (2.02) | May 13, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 10, 2026 | filing ↗ |
| Earnings (2.02) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Earnings (2.02) | Jan 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 2, 2026 | filing ↗ |
| Material agreement (1.01) | Nov 18, 2025 | filing ↗ |
| Agreement terminated (1.02) | Nov 18, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 23, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Oct 23, 2025 | filing ↗ |