Boundless Bio, Inc. (BOLD) Insider Trading -- Recent Executive & Director Transactions

15 insiders reported 72 Form 4 transactions for Boundless Bio, Inc. (BOLD) over the past 18 months (most recent 2026-08-28). Recent activity: TANG KEVIN (10% Owner) Sell 18,300 shares, TANG CAPITAL MANAGEMENT LLC (10% Owner) Sell 18,300 shares, TANG KEVIN (10% Owner) Buy 265 shares, TANG CAPITAL MANAGEMENT LLC (10% Owner) Buy 265 shares, TANG KEVIN (10% Owner) Buy 1,623 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-08-28TANG KEVIN10% OwnerSell18,300$54,351
2026-08-28TANG CAPITAL MANAGEMENT LLC10% OwnerSell18,300$54,351
2026-07-21TANG KEVIN10% OwnerBuy265$647
2026-07-21TANG CAPITAL MANAGEMENT LLC10% OwnerBuy265$647
2026-07-21TANG KEVIN10% OwnerBuy1,623$3,960
2026-07-21TANG CAPITAL MANAGEMENT LLC10% OwnerBuy1,623$3,960
2026-07-21TANG KEVIN10% OwnerBuy2,975$7,259
2026-07-21TANG CAPITAL MANAGEMENT LLC10% OwnerBuy2,975$7,259
2026-07-16TANG KEVIN10% OwnerBuy18,491$45,118
2026-07-16TANG CAPITAL MANAGEMENT LLC10% OwnerBuy43,878$106,624
2026-07-16TANG KEVIN10% OwnerBuy1,600$3,904
2026-07-16TANG CAPITAL MANAGEMENT LLC10% OwnerBuy1,600$3,904
2026-07-16TANG KEVIN10% OwnerBuy43,878$106,624
2026-07-16TANG CAPITAL MANAGEMENT LLC10% OwnerBuy18,491$45,118
2026-07-13TANG KEVIN10% OwnerBuy7$17
2026-07-13TANG CAPITAL MANAGEMENT LLC10% OwnerBuy7$17
2026-07-13TANG KEVIN10% OwnerBuy43,367$105,382
2026-07-13TANG CAPITAL MANAGEMENT LLC10% OwnerBuy43,367$105,382
2026-07-13TANG KEVIN10% OwnerBuy48,211$116,671
2026-07-13TANG CAPITAL MANAGEMENT LLC10% OwnerBuy48,211$116,671
2026-07-08TANG KEVIN10% OwnerBuy27,062$67,384
2026-07-08TANG CAPITAL MANAGEMENT LLC10% OwnerBuy27,062$67,384
2026-07-08TANG KEVIN10% OwnerBuy15,810$39,209
2026-07-08TANG CAPITAL MANAGEMENT LLC10% OwnerBuy15,810$39,209
2026-07-08TANG KEVIN10% OwnerBuy14,338$35,271

来源：SEC Form 4 申报文件 · 截至 2026-08-28