BOLDBoundless Bio, Inc.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-10-20.
Insider buys (90d)
$699.2K
Insider sells (90d)
$108.7K
Net flow
$590.5K
Filings
2
Buy transactions
8
Sell transactions
2
Distinct insiders
2
Last close (cached)
$2.44
as of 2026-10-22
1d return
+0.0%
5d return
+3.8%
1m return
-9.6%
Top insiders trading BOLD (90d)
Recent transactions (10)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-20 | 2026-10-20 | TANG KEVIN | Buy | 220 | $2.37 | $521.40 | open → |
| 2026-10-20 | 2026-10-20 | TANG CAPITAL MANAGEMENT LLC 10% | Buy | 220 | $2.37 | $521.40 | open → |
| 2026-10-20 | 2026-10-19 | TANG CAPITAL MANAGEMENT LLC 10% | Buy | 18,279 | $2.33 | $42.6K | open → |
| 2026-10-20 | 2026-10-19 | TANG KEVIN | Buy | 18,279 | $2.33 | $42.6K | open → |
| 2026-10-20 | 2026-10-19 | TANG CAPITAL MANAGEMENT LLC 10% | Buy | 12,790 | $2.34 | $29.9K | open → |
| 2026-10-20 | 2026-10-19 | TANG KEVIN | Buy | 12,790 | $2.34 | $29.9K | open → |
| 2026-10-20 | 2026-10-16 | TANG KEVIN | Buy | 118,185 | $2.34 | $276.6K | open → |
| 2026-10-20 | 2026-10-16 | TANG CAPITAL MANAGEMENT LLC 10% | Buy | 118,185 | $2.34 | $276.6K | open → |
| 2026-08-28 | 2026-08-26 | TANG KEVIN | Sale | 18,300 | $2.97 | $54.4K | open → |
| 2026-08-28 | 2026-08-26 | TANG CAPITAL MANAGEMENT LLC 10% | Sale | 18,300 | $2.97 | $54.4K | open → |
Other tickers these insiders trade
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