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ISSUER PROFILE · CIK 0001782303

Boundless Bio, Inc.BOLD

1 13D/G filings 1 distinct filers 14 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
1
1 SCHEDULE 13G
Distinct filers
1
single filer
Insiders (365d)
14
14 buys · 0 sales
Latest short DTC
1.52
as of 2026-07-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2026-06-29 SCHEDULE 13G TANG CAPITAL MANAGEMENT LLC view →

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-07-13 TANG KEVIN 10%+ Buy 48,211 $2.42 $117K
2026-07-10 TANG KEVIN 10%+ Buy 43,367 $2.43 $105K
2026-07-09 TANG KEVIN 10%+ Buy 7 $2.48 $17
2026-07-02 TANG KEVIN 10%+ Buy 9,821 $2.49 $24K
2026-07-01 TANG KEVIN 10%+ Buy 71,612 $2.49 $178K
2026-06-30 TANG KEVIN 10%+ Buy 25,930 $2.54 $66K
2026-06-30 TANG KEVIN 10%+ Buy 100 $2.50 $250
2026-06-29 TANG KEVIN 10%+ Buy 63,985 $2.47 $158K
2026-06-29 TANG KEVIN 10%+ Buy 777 $2.48 $2K
2026-06-26 TANG KEVIN 10%+ Buy 75,047 $2.55 $191K
2026-06-26 TANG KEVIN 10%+ Buy 134 $2.54 $340
2026-06-25 TANG KEVIN 10%+ Buy 145,880 $2.48 $362K
2026-06-25 TANG KEVIN 10%+ Buy 510 $2.56 $1K
2026-06-15 Whiting Nancy director Award 32,000 $1.40 $45K

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-07-31 223,819 1.52 -6.9%
2026-07-15 240,423 1.01 +27.2%
2026-06-30 188,948 1.00 +637.4%
2026-06-15 25,623 1.00 +322.8%
2026-05-29 6,060 1.00 -76.7%
2026-05-15 25,990 1.00 +90.3%
2026-04-30 13,654 1.00 -90.6%
2026-04-15 145,151 1.00 +845.9%
2026-03-31 15,345 1.00 +104.8%
2026-03-13 7,492 1.00 +2.7%
2026-02-27 7,293 1.00 -7.5%
2026-02-13 7,885 1.00 -71.4%

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