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ISSUER PROFILE · CIK 0001782303

Boundless Bio, Inc.BOLD

1 13D/G filings 1 distinct filers 7 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
1
1 SCHEDULE 13G
Distinct filers
1
single filer
Insiders (365d)
7
7 buys · 0 sales
Latest short DTC
1.00
as of 2026-06-15

13D/G Filings Timeline · 1 total

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

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-06-29 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
2026-06-15 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%
2026-01-30 27,577 1.00 -47.7%
2026-01-15 52,761 1.00 -18.6%
2025-12-31 64,853 1.00 -8.9%

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