BUTLER NATIONAL CORP

OLATHE, KS · Aerospace · Public

Aircraft modifications, electrical systems integration, and defense electronics for commercial and military aircraft

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Updated · butlernational.com

Sector
Aerospace
Headquarters
OLATHE, KS
Latest Form D
$78K, Sep 2010
Total capital
$120K
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$78K
1 Form D · last Sep 2010
194 months since last filing
Federal contracts
$42K
2 awards · Veterans Affairs, Homeland Security
Rank in Aerospace#707 of 1335
Granted patents
None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

20072011201520192023FEDERAL ↑EQUITY ↓Cumulative $120K$299$42K1st Form D$78K
20072011201520192023FEDERAL ↑EQUITY ↓Cumulative $120K$299$42K1st Form D$78K

Latest events

  • Federal contractHomeland Security · Hangfire Override Module$42K
  • Private capital raisedForm D · SEC · 1st filing$78K
  • Federal contractVeterans Affairs · To Pay Registration Fee For Sherry Danielle Hester$299

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Federal first

33months

from BUTLER NATIONAL CORP’s first federal award to its first private round.

First federal award · Dec 2007
Veterans Affairs · $299
First Form D · Sep 2010
$78K · 1st Form D
Awards before first raise
1 award

An association in public records, not a cause or a prediction.

Founders and team

From SEC Form D filings
  • Angela D. ShinabargarExecutive OfficerNamed in SEC Form D filings
  • Bradley K. HoffmanDirectorNamed in SEC Form D filings
  • Christopher J. ReedyExecutive OfficerNamed in SEC Form D filings
  • Clark D. StewartExecutive Officer, DirectorNamed in SEC Form D filings
  • David B. HaydenDirectorNamed in SEC Form D filings
  • Michael J. TamburelliDirectorNamed in SEC Form D filings
Show all 7 people
  • R. Warren WagonerDirectorNamed in SEC Form D filings

What it has protected

No granted patents are on record.

USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.

Checked: USPTO granted patents and published applications · Oct 23, 2026

Regulatory activity · Aerospace

Sector-level, not company-level

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .