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SCHEDULE 13D/A Filed 2026-08-13 Event 2026-08-11 SEC 0001437749-26-027811 →

BOSTON OMAHA Corp Sky Harbour Group Corp SKYH-WT

Stake: 40.50% Shares: 18,699,773 CUSIP: 83085C107 Class: Class A common stock, par value $0.0001 per share

Item 4 — Purpose of Transaction

Item 4 of the Schedule 13D is hereby supplemented as follows: On August 11, 2026, the Reporting Person sold an aggregate of 360,000 shares of Class A Stock at a price of $10.00 per share, for total gross proceeds of $3,600,000, pursuant to an effective registration statement under the Securities Act of 1933, as amended. As a consequence, the Reporting Person's beneficial ownership decreased to 18,699,773 shares of Class A Stock (including the 7,719,779 Warrant Shares). The Reporting Person's beneficial ownership represents 40.45% of the outstanding Class A Stock and 21.18% of the combined voting Common Stock, a decrease primarily caused by such sale by the Reporting Person of 360,000 shares of Class A Stock on August 11, 2026 and the issuance of 4,000,000 shares of Class A common stock by the Issuer. A schedule of the sale transaction by the Reporting Person is attached hereto as Exhibit 4.1.

Cross-References

Insider Activity (last 365d)
1 transaction
0 buys · 1 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
4 filings by this filer
3 other filings in the data moat
Short Interest
Not in latest FINRA snapshot

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-08-11 BOSTON OMAHA Corp 10%+ owner Sale 360,000 $10.00 $3.60M

Other 13D/G Filings on Sky Harbour Group Corp

FiledFormFilerStakeShares
2026-04-08 SCHEDULE 13D/A BOSTON OMAHA Corp 45.60% 19,059,773 view →
2025-04-28 SCHEDULE BOSTON OMAHA Corp 47.20% 19,593,897 view →
2025-02-12 SCHEDULE BOSTON OMAHA Corp 48.60% 19,942,588 view →

Other Filings by BOSTON OMAHA Corp

FiledFormIssuerStakeShares
2026-04-08 SCHEDULE 13D/A Sky Harbour Group Corp SKYH-WT 45.60% 19,059,773 view →
2025-04-28 SCHEDULE Sky Harbour Group Corp SKYH-WT 47.20% 19,593,897 view →
2025-02-12 SCHEDULE Sky Harbour Group Corp SKYH-WT 48.60% 19,942,588 view →

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