Listed

Boundless Bio, Inc.

BOLDNasdaqCIK 1782303HealthcareFiscal year ends Dec 31

Revenue is not reported in this company’s XBRL financial statements.

Latest quarter: Q2 FY2026

Three months to Jun 30, 2026, against the same quarter a year earlier.

  • Revenuenot reported (Revenue not reported)No year-earlier figure to compare
  • Gross marginnot reported (Gross profit and Revenue not reported)No year-earlier figure to compare
  • Operating marginnot reported (Revenue not reported)No year-earlier figure to compare
  • Net marginnot reported (Revenue not reported)No year-earlier figure to compare
  • Diluted EPS−$1.06Diluted EPS, Q2 FY2026, three months to 2026-06-30−$1.06 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-07, accession 0001193125-26-339093.Report this figure−51.4% on a year earlier
  • Free cash flow−$21.0mFree cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: −$21.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Capital expenditure: $38.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Report this figure−76.9% on a year earlier

Last eight quarters

Full statements
Diluted EPS−$1.06, Q2 FY2026
Free cash flow−$21.0m, Q2 FY2026
Boundless Bio, Inc., key figures for the last eight quarters
Line itemUnitQ3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30Shape over the periods
Revenue$mnot reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Gross margin%not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)
Operating margin%not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Net margin%not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Diluted EPS$ per share(0.74)Diluted EPS, Q3 FY2024, three months to 2024-09-30−$0.74 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-05, accession 0001193125-25-265714.Report this figurenot reported (Diluted EPS not reported)(0.71)Diluted EPS, Q1 FY2025, three months to 2025-03-31−$0.71 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Report this figure(0.70)Diluted EPS, Q2 FY2025, three months to 2025-06-30−$0.70 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-07, accession 0001193125-26-339093.Report this figure(0.62)Diluted EPS, Q3 FY2025, three months to 2025-09-30−$0.62 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-05, accession 0001193125-25-265714.Report this figurenot reported (Diluted EPS not reported)(0.60)Diluted EPS, Q1 FY2026, three months to 2026-03-31−$0.60 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Report this figure(1.06)Diluted EPS, Q2 FY2026, three months to 2026-06-30−$1.06 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-07, accession 0001193125-26-339093.Report this figure
Free cash flow$m(13.7)Free cash flow, Q3 FY2024, three months to 2024-09-30. operating cash flow − capital expenditureOperating cash flow: −$13.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-05, accession 0001193125-25-265714. Derived: 9-month figure less the 6-month figure.Capital expenditure: $483.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-05, accession 0001193125-25-265714. Derived: 9-month figure less the 6-month figure.Report this figure(16.0)Free cash flow, Q4 FY2024, three months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: −$15.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-09, accession 0001193125-26-097543. Derived: 12-month figure less the 9-month figure.Capital expenditure: $466.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-09, accession 0001193125-26-097543. Derived: 12-month figure less the 9-month figure.Report this figure(14.6)Free cash flow, Q1 FY2025, three months to 2025-03-31. operating cash flow − capital expenditureOperating cash flow: −$14.5m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Capital expenditure: $59.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Report this figure(11.9)Free cash flow, Q2 FY2025, three months to 2025-06-30. operating cash flow − capital expenditureOperating cash flow: −$11.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Capital expenditure: $48.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Report this figure(10.2)Free cash flow, Q3 FY2025, three months to 2025-09-30. operating cash flow − capital expenditureOperating cash flow: −$10.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-05, accession 0001193125-25-265714. Derived: 9-month figure less the 6-month figure.Capital expenditure: $15.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-05, accession 0001193125-25-265714. Derived: 9-month figure less the 6-month figure.Report this figure(10.5)Free cash flow, Q4 FY2025, three months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: −$10.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-09, accession 0001193125-26-097543. Derived: 12-month figure less the 9-month figure.Capital expenditure: $424.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-09, accession 0001193125-26-097543. Derived: 12-month figure less the 9-month figure.Report this figure(15.0)Free cash flow, Q1 FY2026, three months to 2026-03-31. operating cash flow − capital expenditureOperating cash flow: −$15.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Capital expenditure: $8.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0001193125-26-213321.Report this figure(21.0)Free cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: −$21.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Capital expenditure: $38.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-07, accession 0001193125-26-339093. Derived: 6-month figure less the 3-month figure.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Last five fiscal years

Diluted EPS−$2.60, FY2025
Free cash flow−$47.2m, FY2025
Boundless Bio, Inc., key figures for the last five fiscal years
Line itemUnitFY2023-12-31FY20242024-12-31FY20252025-12-31Shape over the periods
Revenue$mnot reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Gross margin%not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)not reported (Gross profit and Revenue not reported)
Operating margin%not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Net margin%not reported (Revenue not reported)not reported (Revenue not reported)not reported (Revenue not reported)
Diluted EPS$ per share(40.65)Diluted EPS, period not labelled, twelve months to 2023-12-31−$40.65 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-03-27, accession 0000950170-25-045725.Report this figure(3.85)Diluted EPS, FY2024, twelve months to 2024-12-31−$3.85 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-09, accession 0001193125-26-097543.Report this figure(2.60)Diluted EPS, FY2025, twelve months to 2025-12-31−$2.60 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-09, accession 0001193125-26-097543.Report this figure
Free cash flow$m(47.5)Free cash flow, period not labelled, twelve months to 2023-12-31. operating cash flow − capital expenditureOperating cash flow: −$46.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-03-27, accession 0000950170-25-045725.Capital expenditure: $633.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-03-27, accession 0000950170-25-045725.Report this figure(63.4)Free cash flow, FY2024, twelve months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: −$60.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-09, accession 0001193125-26-097543.Capital expenditure: $2.5m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-09, accession 0001193125-26-097543.Report this figure(47.2)Free cash flow, FY2025, twelve months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: −$46.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-09, accession 0001193125-26-097543.Capital expenditure: $546.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-09, accession 0001193125-26-097543.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Insider purchases and sales

All insider transactions

The last 20 open-market transactions reported on Form 4 (codes P and S). The reported price is the price per share the insider stated on the form: filing data, not a market price.

By month, by reported value, last 24 monthsPurchases $51.6kSales $0
Boundless Bio, Inc., open-market insider transactions
DateInsiderTransactionSharesReported priceValueFiling
2026-10-26Tang Kevin10% owner Purchase9,606$2.38$22.9kForm 4
2026-10-23Tang Kevin10% owner Purchase6,234$2.38$14.8kForm 4
2026-10-22Tang Kevin10% owner Purchase5,800$2.40$13.9kForm 4

Funds that report holding it

All funds

From each manager's latest Form 13F, largest reported value first. Reported value is as filed at the quarter end: filing data, not a price. A put or call is an option position, not shares held.

Funds that report holding Boundless Bio, Inc.
FundQuarter endedReported valueSharesPut or callChange on the quarter before
ARCH Venture Management, LLC2026-06-30$6.7m2,694,095New+2,694,095
FMR LLC2026-06-30$6.5m2,581,055Reduced−114,400
TANG CAPITAL MANAGEMENT LLC2026-06-30$6.4m2,559,875New+2,559,875
ADAR1 Capital Management, LLC2026-06-30$4.9m1,968,216New+1,968,216
Cormorant Asset Management, LP2026-06-30$2.5m1,000,000New+1,000,000
VANGUARD CAPITAL MANAGEMENT LLC2026-06-30$1.5m614,923Added+17,731
WELLINGTON MANAGEMENT GROUP LLP2026-06-30$1.4m556,233Unchanged
MILLENNIUM MANAGEMENT LLC2026-06-30$1.2m478,639Added+378,764
RENAISSANCE TECHNOLOGIES LLC2026-06-30$1.2m471,570Added+72,570
Alyeska Investment Group, L.P.2026-06-30$750.0k300,000Unchanged

Recent filings

All 157 filings

Reports and events: 10-K, 10-Q, 8-K, proxy statements and ownership schedules.

Boundless Bio, Inc., recent filings
FiledFormWhat it isAccession number
2026-08-2817:25 ET8-K1.01 Entry into a material agreement; 9.01 Financial statements and exhibits0001193125-26-374787
2026-08-0707:00 ET10-QQuarterly reportPeriod 2026-06-300001193125-26-339093
2026-06-2308:30 ET8-K1.01 Entry into a material agreement; 2.05 Exit or disposal costs; 3.02 Unregistered sale of equity; 5.01 Change in control; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits0001193125-26-278570
2026-06-1710:49 ET8-K5.07 Shareholder vote results0001193125-26-273544
2026-05-0807:10 ET10-QQuarterly reportPeriod 2026-03-310001193125-26-213321
2026-05-0807:05 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001193125-26-213269
2026-04-2816:00 ETDEF 14AProxy statementPeriod 2026-06-150001193125-26-186884
2026-04-1317:15 ET8-K1.02 Termination of a material agreement; 2.03 New direct financial obligation0001193125-26-153076
2026-03-0907:10 ET10-KAnnual reportPeriod 2025-12-310001193125-26-097543
2026-03-0907:05 ET8-K2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001193125-26-097535

Latest annual report

Form 10-K for the fiscal year ended Dec 31, 2025Filed Mar 9, 2026. Its page lists the documents and the extracted sections, such as Business and Risk factors.

Forecast league

Not in this season’s league. The league lists companies whose quarter has ended and whose results are not yet filed.This season’s league

About the filer

CIK
1782303
Tickers
BOLD
Exchange
Nasdaq
SIC code
2834 Pharmaceutical Preparations
Sector
Healthcare
Fiscal year ends
Dec 31
Incorporated in
DE
Filer category
Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 29, 2026, 18:21 ET. Listed shows no prices and gives no investment advice.