BOLD insider buying & filings

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BOLDBoundless Bio, Inc.

NasdaqGS · Healthcare · $63.92M

$2.81

-1.06% · Sep 15

Seven insider buys in the last year — $410.7K in all.
Nothing in the last fortnight.

Last Form 4 Aug 28 · scanned 3m ago

Price · 1Y · daily● 7 buys● 2 sells◆ 1 8-K

▸ hover a marker for the filing · drag to zoom · daily bars sharpen to 30-min on close ranges · 4 moves explained

AI brief · from the filings on this pagePro

The filings, the score and the setup on this page, read for you in about ten seconds — what the insiders did, and what stands against it.

▸ Included with Pro →

Market cap

$63.92M

Float

16.1M

71% public

Short % float

Pro

The buyers

▸ each insider's past open-market buys, measured ~6 months (120 trading days) later, against the S&P over the same spans · split-adjusted · pre-scheduled 10b5-1 plan trades excluded · past outcomes, not predictions

10% owner

Tang Kevin

Bought $178.3K on Jul 1 — 71,612 sh @ $2.49, held indirect, 2.7% of their stake.

2 of 2 positions beat the S&P

median +38.5% vs S&P +11.2% same spans · 15 buy-days · 1 positions still open

Institutional stakes

▸ a holder crossing 5% files Schedule 13D if they intend to act on the company, 13G if they certify they will not · /A amends an earlier filing

3 filingsnewest first

13GHornby Zachary9.8%Aug 27

13GADAR1 Capital Management, LLC8.8%Aug 14

13GTang Capital Management LLC11.3%Jun 29

The record

newest first

DateTypeInsiderOf stakeShares @ priceValue

Aug 28SELLTang Kevin10% ownerindirect18,300 @ $2.97$54.4K

Jul 8BUYTang Kevin10% owner+0.5%indirect14,338 @ $2.46$35.3K

Jul 8BUYTang Kevin10% owner+0.6%indirect15,810 @ $2.48$39.2K

Jul 8BUYTang Kevin10% owner+1.0%indirect27,062 @ $2.49$67.4K

Jul 6SELLCrandell Keith10% ownerindirect16,000 @ $2.49$39.8K

5 more transactions on Pro →

Context

Wall St

$4.00 avg target

+42.3% vs today · 1 analyst · consensus Hold

▸ relayed analyst opinion, which tends to run optimistic — not our forecast or advice

Earnings · EPS vs forecast

0 of 4 quarters beat

Q1 '26−$0.60 act−$0.04

Q4 '25−$0.58 act−$0.06

Q3 '25−$0.62 act−$0.04

Q2 '25−$0.70 act−$0.05

Coverage

Why Did BOLD, BLZE, QNT Stocks Surge To 52-Week Highs TodayStocktwits · 06-24 BOLD Stock Is Up 90% — Here's What's Behind The Biggest Rally In Company HistoryStocktwits · 06-23 Boundless Bio, Inc. (BOLD) Upgraded to Buy: Here's WhyZacks · 02-13 We're Keeping An Eye On Boundless Bio's (NASDAQ:BOLD) Cash Burn RateSimply Wall St. · 01-31

The file stays open

22 filings on record.
The next one will be too.

All candidates

▸ SEC EDGAR · FINRA · Nasdaq — public sources only · research, not advice

Tang Kevin

22 filings on record.The next one will be too.

22 filings on record.
The next one will be too.