Cross-institution positioning
Aug 14, 2026Strong institutional reduction. 1 reducing, 1 exited across 2 comparable institutions.
Source: Schedule 13 researchBOLD Institutional Ownership
Boundless Bio, Inc.
Latest stored close $2.58 as of Oct 8, 2026 View live quote ↗
STOCKNODE Outlook
Neutral
38/100
2 tracked · 2 comparable
Latest filing
Aug 14, 2026
Positive breadth
0 positive · 2 negative
Recent close
$2.58
Research confidence
Medium
Institutional Research 16/100 · 0 accumulating · 2 reducing / exited
Ownership history
Reported ownership % history
Latest filing Aug 14, 2026
See how each tracked institution's reported ownership changed across SEC position dates. Full history is available with Investor or Pro access.
Locked preview
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Accumulating0
Newly reported0
Reducing / exited
2
52-week position
—
Institutional Intelligence
Why STOCKNODE says Neutral
What the evidence shows across the newest institutional, insider, company-event, 13F, fundamental, and price data; STOCKNODE combines these layers into a quantitative research signal while preserving each source and reporting window.
STOCKNODE Outlook
Neutral 38/100
Confidence:Medium
Why this signal
- 0 tracked institutions accumulating versus 2 reducing/exited.
- Latest comparable Form 13F activity is net positive across tracked managers.
- Recent insider purchase activity confirms the institutional direction.
Conflicting evidence
- Institutions are reducing while recent insider P/S activity leans bullish.
Institutional
32/100
Insiders
64/100
Fundamentals
30/100
Events
50/100
Quarterly 13F activity
Jun 30, 20261 increased/new, 0 reduced/exited, and 1 unchanged across 2 managers in the latest comparable Form 13F quarter.
Source: Form 13F quarter-end holdingsInsider filing activity
Aug 26, 2026Over the last 90 days, SEC-coded non-derivative P/S activity includes 22 purchases by 2 reporting owners and 3 sales by 15 reporting owners. Amendments are shown in the filing evidence but excluded from rolling activity totals.
Source: SEC Forms 3/4/5Material company events
Aug 28, 20261 non-amendment material event in the last 90 days; Latest classified evidence: Material definitive agreement. Registration and prospectus filings are treated as financing capacity/disclosure evidence, not proof that securities were sold.
Source: SEC 8-K / securities filing metadataSEC fundamentals
Aug 7, 2026Net income -51.2% YoY; Free cash flow -36.0% YoY. Periods are compared only when the SEC facts are aligned and comparable.
Source: SEC Company FactsPrice context
Sep 15, 2026Recent close is 84% through its reported 52-week range; +144.3% over one year.
Source: Stored historical price series
Latest filing decision brief
Investor / Pro
Research the latest Schedule 13G amendment from Citadel Advisors.
Filed Aug 14, 2026. Unlock the dated position comparison, disclosure classification, confidence, price context, and filing-specific significance analysis.
Premium research values are withheld until unlocked.
Supporting institutional evidence
Institutional Evidence
The research summary above gives the current read. This section shows the dated holder-level evidence behind it.
Latest filing
Aug 14, 2026
Latest reported position changes
Investor / Pro detailSee each institution's newest reported position against its own prior report, with position as-of date separated from SEC filed date. Institution names and filing freshness remain public below.
Fidelity / FMR
Filed Feb 5, 2026
Direction locked
Citadel Advisors
Filed Aug 14, 2026
Direction locked
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No premium position values are sent in this locked preview.
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Reported direction breadth by as-of date
Locked previewComparable holder direction grouped by SEC position as-of date — never presented as trade dates.
Unlock actual accumulation vs. reduction breadth across reported position dates.
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Institution comparison
Investor / Pro detailCompare each institution only with its own prior reported position. Public visitors can see who is tracked and how fresh the filing is; paid research reveals the actual comparison.
Fidelity / FMR
Filed Feb 5, 2026
Citadel Advisors
Filed Aug 14, 2026
Unlock the evidence behind the score
Know who changed position, by how much, and when the SEC learned about it.
Investor and Pro reveal holder-by-holder changes, reported ownership history, dated breadth, disclosure timing, institution comparison, and filing-specific analysis without treating Schedule 13 reports as trade dates.
✓ Actual share and ownership changes
✓ Position as-of date vs. SEC filed date
✓ Deterministic direction basis
✓ Full evidence on every eligible stock
SEC Forms 3, 4 & 5
Insider activity
Reported Section 16 ownership activity. Rolling purchase/sale totals use non-derivative SEC transaction codes P and S only; amendments remain visible but are excluded from those totals.
30-day purchases00 reporting owner(s)
30-day sales12 reporting owner(s)
90-day purchase breadth2Multi-insider
90-day sale breadth15Multi-insider
View recent insider filing evidence
| Date | Reporting owner | Code | Security | Shares | Price | Ownership | Filed |
|---|---|---|---|---|---|---|---|
| Aug 26, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | SOpen-market or private sale | Common Stock | 18.3K | $2.97 | Indirect | Aug 28, 2026 |
| Jul 21, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 3.0K | $2.44 | Indirect | Jul 21, 2026 |
| Jul 20, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 1.6K | $2.44 | Indirect | Jul 21, 2026 |
| Jul 17, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 265 | $2.44 | Indirect | Jul 21, 2026 |
| Jul 16, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 18.5K | $2.44 | Indirect | Jul 16, 2026 |
| Jul 15, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 1.6K | $2.44 | Indirect | Jul 16, 2026 |
| Jul 14, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 43.9K | $2.43 | Indirect | Jul 16, 2026 |
| Jul 13, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 48.2K | $2.42 | Indirect | Jul 13, 2026 |
| Jul 10, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 43.4K | $2.43 | Indirect | Jul 13, 2026 |
| Jul 9, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 7 | $2.48 | Indirect | Jul 13, 2026 |
| Jul 8, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 14.3K | $2.46 | Indirect | Jul 8, 2026 |
| Jul 7, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 15.8K | $2.48 | Indirect | Jul 8, 2026 |
| Jul 6, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 27.1K | $2.49 | Indirect | Jul 8, 2026 |
| Jul 2, 2026 | TANG KEVIN, TANG CAPITAL MANAGEMENT LLC | POpen-market or private purchase | Common Stock | 9.8K | $2.49 | Indirect | Jul 2, 2026 |
| Jul 1, 2026 | CRANDELL KEITH, BYBEE CLINTON, NELSEN ROBERT, GILLIS STEVEN, Burow Kristina | MExercise or conversion of derivative · derivative | Stock Option (right to buy) | 16.0K | $0.00 | Indirect | Jul 6, 2026 |
| Jul 1, 2026 | CRANDELL KEITH, BYBEE CLINTON, NELSEN ROBERT, GILLIS STEVEN, Burow Kristina | SOpen-market or private sale | Common Stock | 16.0K | $2.49 | Indirect | Jul 6, 2026 |
| Jul 1, 2026 | CRANDELL KEITH, BYBEE CLINTON, NELSEN ROBERT, GILLIS STEVEN, Burow Kristina | MExercise or conversion of derivative | Common Stock | 16.0K | $1.03 | Indirect | Jul 6, 2026 |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P., ARCH Venture Fund IX Overage, L.P., ARCH Venture Fund X Overage, L.P., ARCH Venture Partners IX, L.P., ARCH Venture Partners IX Overage, L.P., ARCH Venture Partners X Overage, L.P., ARCH Venture Partners IX, LLC, ARCH Venture Partners X, LLC | MExercise or conversion of derivative · derivative | Stock Option (right to buy) | 16.0K | $0.00 | Indirect | Jul 6, 2026 |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P., ARCH Venture Fund IX Overage, L.P., ARCH Venture Fund X Overage, L.P., ARCH Venture Partners IX, L.P., ARCH Venture Partners IX Overage, L.P., ARCH Venture Partners X Overage, L.P., ARCH Venture Partners IX, LLC, ARCH Venture Partners X, LLC | SOpen-market or private sale | Common Stock | 16.0K | $2.49 | Indirect | Jul 6, 2026 |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P., ARCH Venture Fund IX Overage, L.P., ARCH Venture Fund X Overage, L.P., ARCH Venture Partners IX, L.P., ARCH Venture Partners IX Overage, L.P., ARCH Venture Partners X Overage, L.P., ARCH Venture Partners IX, LLC, ARCH Venture Partners X, LLC | MExercise or conversion of derivative | Common Stock | 16.0K | $1.03 | Indirect | Jul 6, 2026 |
SEC company-event context
Material company events
Recent 8-K item classifications plus securities registration and prospectus filings. Registration or prospectus filings show financing capacity/disclosure activity; they do not by themselves prove that securities were sold.
30-day material events0
90-day capital-related0
90-day equity-related0
90-day debt-related0
View recent company-event filing evidence
| Filed | Form | 8-K item(s) | Classification | Capital context | SEC |
|---|---|---|---|---|---|
| Aug 28, 2026 | 8-K | 1.01, 9.01 | Material definitive agreement; Financial statements / exhibits | — | Filing |
| Jun 23, 2026 | 8-K | 1.01, 2.05, 3.02, 5.01, 5.02, 7.01, 8.01, 9.01 | Material definitive agreement; Exit or disposal activities; Unregistered sale of equity securities; Change in control; Director or executive change; Regulation FD disclosure; Other event; Financial statements / exhibits | Equity | Filing |
| Jun 17, 2026 | 8-K | 5.07 | Shareholder vote results | — | Filing |
| May 8, 2026 | 8-K | 2.02, 9.01 | Results of operations / financial condition; Financial statements / exhibits | — | Filing |
| Apr 13, 2026 | 8-K | 1.02, 2.03 | Termination of material agreement; New direct financial obligation | Debt | Filing |
| Mar 9, 2026 | 8-K | 2.02, 5.02, 9.01 | Results of operations / financial condition; Director or executive change; Financial statements / exhibits | — | Filing |
| Nov 5, 2025 | 8-K | 2.02, 9.01 | Results of operations / financial condition; Financial statements / exhibits | — | Filing |
SEC-reported company fundamentals
Fundamentals
Period-aligned SEC facts. Comparisons appear only when periods and units are comparable.
Operating income
$-24.4M
Q2 2026
-42.9% YoY 10-Q filed Aug 7, 2026
Net income
$-23.7M
Q2 2026
-51.2% YoY 10-Q filed Aug 7, 2026
Diluted EPS
$-1.06
Q2 2026
-51.4% YoY 10-Q filed Aug 7, 2026
Operating cash flow
$-35.9M
YTD through Jun 30, 2026
-36.4% YoY 10-Q filed Aug 7, 2026
Free cash flow
$-36.0M
YTD through Jun 30, 2026
-36.0% YoY 10-Q filed Aug 7, 2026
Cash & equivalents
$20.2M
As of Jun 30, 2026
+37.5% YoY 10-Q filed Aug 7, 2026
Assets
$73.7M
As of Jun 30, 2026
-58.9% YoY 10-Q filed Aug 7, 2026
Liabilities
$7.8M
As of Jun 30, 2026
-86.3% YoY 10-Q filed Aug 7, 2026
Stockholders’ equity
$66.0M
As of Jun 30, 2026
-46.2% YoY 10-Q filed Aug 7, 2026
Shares outstanding
22.7M
As of Aug 5, 2026
+1.6% YoY 10-Q filed Aug 7, 2026
Current market context
Price performance
Dated price context from the historical market series already collected for this security.
Recent stored close
$2.81
View live quote ↗
52-week low
$0.96
Feb 5, 2026
52-week high
$3.16
Aug 24, 2026
Below 52-week high
11.2%
1W return
-1.7%
1M return
-0.7%
3M return
+100.7%
6M return
+153.2%
YTD return
+134.2%
1Y return
+144.3%
30-day volatility
28.1%
90-day volatility
109.1%
1Y max drawdown
-30.5%
Returns are close-to-close price changes. Volatility and drawdown are factual historical context, not recommendations.
How to read Schedule 13 ownership changes
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
For more context, see how to read a Schedule 13G, filing date vs event date, or Schedule 13G vs Schedule 13D.
Current ownership filings and reported ownership changes are available on free access. Investor and Pro add filing-specific significance scoring, disclosure-speed analysis, confirmation/divergence signals, and alerts. The overall institutional consensus preview remains public. Compare plans.
Beneficial ownership filing history
Showing 3 of 6 filing(s) · 3 older require more history accessView beneficial ownership filing evidence
| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| Citadel Advisors CIK0001423053 | Jun 30, 2026 observed Aug 14, 2026 filed · 45d Schedule 13G amendment | Exit below reporting threshold | 145.1K -1.3M | 0.60% -5.80 pts | $2.50 | $2.83 | $2.58 |
| Fidelity / FMR CIK0000315066 | Dec 31, 2025 observed Feb 5, 2026 filed · 36d Schedule 13G amendment | Reported reduction | 2.7M -579.2K | 12.00% -2.67 pts | $1.20 | $1.09 | $2.58 |
| Citadel Advisors CIK0001423053 | Nov 26, 2025 observed Dec 4, 2025 filed · 8d Initial Schedule 13G | Initial Schedule 13G | 1.4M | 6.40% | $1.11 | $1.10 | $2.58 |
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