TNGX · Insider Trading

Tango Therapeutics, Inc.

Every open-market purchase and sale reported by TNGX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
1
code P
Sales
18
code S
Reporting Insiders
18
current holders
TNGX — Recent Form 4 Transactions (latest 2026-10-05)
FiledInsiderRole TypeSharesValue
2026-10-05 Adam Crystal President, R&D MIXED — −$520.40K
2026-09-24 Jessica Newcomb Principal Accounting Officer Sell −8,200 −$198.61K
2026-09-03 Adam Crystal President, R&D MIXED — −$463.51K
2026-08-05 Adam Crystal President, R&D MIXED — −$595.12K
2026-07-02 Adam Crystal President, R&D MIXED — −$658.51K
2026-06-23 Robert Azelby Director A +5,740 —
2026-06-08 Lesley Ann Calhoun Director A +4,000 —
2026-06-08 Mace Rothenberg Director A +4,000 —
2026-06-08 John B Ketchum Director A +4,000 —
2026-06-08 Sung Lee Director A +570 —
2026-06-03 Adam Crystal President, R&D MIXED — −$477.17K
2026-05-05 Matthew Gall Chief Financial Officer A +40,000 —
2026-05-05 Adam Crystal President, R&D MIXED — −$432.70K
2026-05-01 Sung Lee Director A +12,300 —
2026-04-16 Adam Crystal President, R&D MIXED — −$761.51K
2026-04-02 Adam Crystal President, R&D MIXED — −$432.08K
2026-03-27 Adam Crystal President, R&D MIXED — −$178.92K
2026-03-09 Adam Crystal President, R&D Sell −20,251 −$303.76K
2026-02-27 Adam Crystal President, R&D Sell −54,345 −$694.21K
2026-02-04 Barbara Weber Director, Executive Chair MIXED +7,003 −$374.29K
2026-02-04 Adam Crystal President, R&D MIXED +29,008 −$226.30K
2026-02-04 Daniella Beckman Chief Financial Officer MIXED +34,013 −$126.53K
2026-01-12 Malte Peters President & CEO A +350,000 —
2026-01-06 Sung Lee Director A +10,000 —
2025-11-04 Malte Peters Director A +150,000 deriv. —
2025-10-27 TRV GP IV, LLC 10%+ Owner Sell −1,432,203 −$14.54M
2025-09-29 TRV GP IV, LLC 10%+ Owner Sell −1,500,000 −$12.03M
2025-09-17 Third Rock Ventures IV, L.P. 10%+ Owner Sell −1,090,623 −$7.68M
2025-09-09 TRV GP IV, LLC 10%+ Owner Sell −2,188,095 −$15.33M
2025-08-26 TRV GP IV, LLC 10%+ Owner Sell −906,582 −$6.35M
2025-08-21 TRV GP IV, LLC 10%+ Owner Sell −3,300,000 −$23.14M
2025-06-09 John B Ketchum Director A +6,250 —
2025-06-09 Lesley Ann Calhoun Director A +6,250 —
2025-06-09 Malte Peters Director A +6,250 —
2025-06-09 Alexis Borisy Director A +6,250 —
2025-06-09 Mace Rothenberg Director A +6,250 —
2025-02-06 Adam Crystal See Remarks Sell −14,283 −$43.87K
2025-02-06 Barbara Weber Chief Executive Officer Sell −18,791 −$57.71K
2025-02-06 Douglas Barry General Counsel Sell −5,330 −$16.37K
2025-02-06 Daniella Beckman Chief Financial Officer Sell −8,232 −$25.28K
2025-02-05 Daniella Beckman Chief Financial Officer A +26,119 —
2025-02-05 Douglas Barry General Counsel A +27,363 —
2025-02-05 Barbara Weber Chief Executive Officer A +105,875 —
2025-02-05 Adam Crystal See Remarks A +53,015 —
2024-11-18 Mace Rothenberg Director Buy +20,000 +$74.00K
2024-11-08 EcoR1 Capital, LLC 10%+ Owner Sell −2,700,000 −$8.44M
2024-11-07 Boxer Capital Management, LLC — Sell −6,160,000 −$19.34M
2024-10-28 Aaron I. Davis — Sell −1,266,000 −$8.70M
2024-10-23 Boxer Capital Management, LLC — Sell −1,750,000 −$12.20M
2024-09-17 TRV GP IV, LLC 10%+ Owner Sell −202,200 −$2.13M
TNGX — Current Insider Holders
InsiderRole Shares HeldValue
Third Rock Ventures IV, L.P. 10%+ Owner 14,363,975 $388.26M
TRV GP IV, LLC 10%+ Owner 13,386,574 $361.84M
EcoR1 Capital, LLC 10%+ Owner 11,836,178 $319.93M
Boxer Capital Management, LLC — 7,432,435 $200.90M
Aaron I. Davis Director 6,799,435 $183.79M
Barbara Weber Director, Executive Chair 1,629,587 $44.05M
Malte Peters President & CEO 367,500 $9.93M
Daniella Beckman Chief Financial Officer 184,410 $4.98M
Adam Crystal President, R&D 115,743 $3.13M
Jessica Newcomb Principal Accounting Officer 66,621 $1.80M
Douglas Barry General Counsel 66,014 $1.78M
Mace Rothenberg Director 41,500 $1.12M
Matthew Gall Chief Financial Officer 40,000 $1.08M
John B Ketchum Director 24,937 $674.05K
Sung Lee Director 22,870 $618.18K
Alexis Borisy Director 17,500 $473.02K
Lesley Ann Calhoun Director 16,500 $446.00K
Robert Azelby Director 5,740 $155.15K
TNGX Insider Trading FAQ
Who are the insiders at TNGX?
18 officers, directors and 10%+ beneficial owners currently report holdings in TNGX via SEC Form 4.
Are TNGX insiders buying or selling?
Across the 50 most recent Form 4 filings for TNGX, 1 were open-market purchases (code P) and 18 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is TNGX insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent TNGX filing is dated 2026-10-05.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the TNGX quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.