Butler National Corporation

Olathe, Kansas – October 14, 2026 -- Avcon Industries, a subsidiary of Butler National Corporation (OTCQX: BUKS), has received FAA Supplemental Type Certificate No. ST12439CH to replace Honeywell Aerospace Mark V EGPWS computers with the MKV-A unit across nine Learjet and Bombardier models.

STC covers Learjet 40/45 and 60 and seven Bombardier variants

The Approved Models List STC applies to the Learjet Models 40/45 and 60. It also covers the Bombardier CL-600-1A11 (600), CL-600-2A12 (601), three CL-600-2B16 variants (601-3A, 601-3R and 604), BD-700-1A10 and BD-700-1A11.

The installation uses existing avionics racks and is designed to minimize installation effort. Honeywell is phasing out the Mark V, and the MKV-A is offered as a drop-in replacement with options to upgrade capabilities later.

New Century, Kan. – October 07, 2026 -- Butler National Corporation (OTCQX: BUKS) has authorized a $10 million increase to its common stock repurchase program, lifting total available authorization to approximately $11.9 million and extending the window for buybacks through April 30, 2029.

Board expands buyback capacity to $11.9 million through 2029

The aerospace modification, MRO and gaming management company said the increased authorization gives management added flexibility to repurchase shares when market conditions are deemed favorable for long-term shareholders. The decision followed the Board's review of the Company's financial position, expected capital requirements and growth investment opportunities.

New Century, Kansas – September 17, 2026 -- Butler National Corporation (OTCQX: BUKS) reported first-quarter fiscal 2027 revenue of $30.8 million, up 53% from the prior-year period, driven by a surge in aircraft modification work and a record aerospace backlog.

Net income climbs 43% to $5.3 million as operating margin expands to 24%

Operating income rose 59% to $7.4 million, while net income increased 43% to $5.3 million for the quarter ended September 17, 2026. Earnings per share rose to $0.08 from $0.06 a year earlier, reflecting margin expansion from 23% to 24%.