What indirect Sky Harbour (SKYH) holdings related to Boston Omaha Corp are disclosed?

The filing notes that United Casualty & Surety Insurance Company, a wholly owned Boston Omaha subsidiary, owns 2,673,831 Sky Harbour Class A shares. This indirect holding is identified with an indirect ownership code and referenced in the filing’s first footnote.

Boston Omaha Corp (BOC) trims Sky Harbour stake with 331,500-share sale

Q: How many Sky Harbour (SKYH) shares did Boston Omaha Corp sell and at what price?

Boston Omaha Corp sold 331,500 Sky Harbour Class A common shares in an open-market sale at $9.05 per share. This transaction is reported as a non-derivative sale of common stock on the Form 4.

Q: How many Sky Harbour (SKYH) Class A shares does Boston Omaha Corp hold after the sale?

After the reported sale, Boston Omaha Corp directly owns 8,666,163 Sky Harbour Class A common shares. A wholly owned subsidiary, United Casualty & Surety Insurance Company, holds an additional 2,673,831 Sky Harbour Class A shares according to the footnote.

Q: Is the Sky Harbour (SKYH) Form 4 transaction a buy or a sell by Boston Omaha Corp?

The Form 4 shows an open-market sale by Boston Omaha Corp, coded as a sale (“S”). The transaction involved 331,500 Sky Harbour Class A shares and is classified with a transaction direction of “sell” in the filing data.

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Boston Omaha Corporation, a more than 10% owner of Sky Harbour Group Corp, reported an open-market sale of 331,500 shares of Sky Harbour Class A common stock at $9.05 per share. After this transaction, Boston Omaha directly owns 8,666,163 Sky Harbour Class A shares. A wholly owned subsidiary, United Casualty & Surety Insurance Company, holds an additional 2,673,831 Class A shares, and Boston Omaha also continues to own warrants to purchase 7,719,779 Class A shares.

Insider Trade Summary

Net Seller: 331,500 shares ($3,000,075)

Net Sell 2 txns

Insider BOSTON OMAHA Corp

Role 10% Owner

Sold 331,500 shs ($3.00M)

Type	Security	Shares	Price	Value
Sale	Class A common stock, par value $0.001 per share	331,500	$9.05	$3.00M
holding	Class A common stock, par value $0.001 per share	--	--	--

Holdings After Transaction: Class A common stock, par value $0.001 per share — 8,666,163 shares (Direct); Class A common stock, par value $0.001 per share — 2,673,831 shares (Indirect, See Footnote 1)

Footnotes (1)

[object Object]

Key Figures

Shares sold: 331,500 shares Sale price: $9.05 per share Direct SKYH holdings: 8,666,163 shares +2 more

5 metrics

Shares sold 331,500 shares Open-market sale of Sky Harbour Class A stock

Sale price $9.05 per share Price for the 331,500 Sky Harbour shares sold

Direct SKYH holdings 8,666,163 shares Sky Harbour Class A shares held directly after sale

Indirect SKYH holdings 2,673,831 shares Sky Harbour Class A shares held by wholly owned subsidiary

Warrants held 7,719,779 warrants Warrants to purchase Sky Harbour Class A shares

Key Terms

open-market sale, Class A common stock, warrants, indirect ownership

4 terms

open-market sale financial

"reported an open-market sale of 331,500 shares of Sky Harbour Class A"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Class A common stock financial

"shares of the Class A common stock of Sky Harbour Group Corporation"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

warrants financial

"continues to own warrants to purchase 7,719,779 shares of Class A common stock"

Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.

indirect ownership financial

"United Casualty & Surety Insurance Company, a wholly-owned subsidiary, owns an additional 2,673,831 shares"

Form 4 Insider Transactions: What Each Field Means →

04/08/2026 - 04:47 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BOSTON OMAHA Corp

(Last)

(First)

(Middle)

1601 DODGE STREET, SUITE 3300

(Street)

OMAHA

NEBRASKA

68102

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Sky Harbour Group Corp [ SKYH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A common stock, par value $0.001 per share	04/06/2026		S		331,500	D	$9.05	8,666,163	D⁽¹⁾
Class A common stock, par value $0.001 per share								2,673,831	I	See Footnote 1⁽¹⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. All of the shares of Class A common stock sold as reported on this Form 4 were sold by Boston Omaha Corporation. As of the date of this report, Boston Omaha Corporation now owns 8,666,163 shares of the Class A common stock of Sky Harbour Group Corporation and United Casualty & Surety Insurance Company, a wholly-owned subsidiary of Boston Omaha Corporation, owns an additional 2,673,831 shares of the Class A common stock. Boston Omaha Corporation continues to own warrants to purchase 7,719,779 shares of Class A common stock of Sky Harbour Group Corporation.

	/s/ Joshua P. Weisenburger	04/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Boston Omaha Corp (BOC) report in its latest Form 4 for Sky Harbour (SKYH)?

Boston Omaha Corp reported an open-market sale of 331,500 Sky Harbour Class A shares at $9.05 per share. The filing also details Boston Omaha’s remaining direct, indirect, and warrant holdings in Sky Harbour’s Class A common stock.

How many Sky Harbour (SKYH) shares did Boston Omaha Corp sell and at what price?

Boston Omaha Corp sold 331,500 Sky Harbour Class A common shares in an open-market sale at $9.05 per share. This transaction is reported as a non-derivative sale of common stock on the Form 4.

How many Sky Harbour (SKYH) Class A shares does Boston Omaha Corp hold after the sale?

After the reported sale, Boston Omaha Corp directly owns 8,666,163 Sky Harbour Class A common shares. A wholly owned subsidiary, United Casualty & Surety Insurance Company, holds an additional 2,673,831 Sky Harbour Class A shares according to the footnote.

Does Boston Omaha Corp still have warrants for Sky Harbour (SKYH) stock?

Yes. The footnote states that Boston Omaha Corp continues to own warrants to purchase 7,719,779 shares of Sky Harbour Class A common stock. These warrants represent an additional potential equity position beyond Boston Omaha’s current share holdings.

Is the Sky Harbour (SKYH) Form 4 transaction a buy or a sell by Boston Omaha Corp?

The Form 4 shows an open-market sale by Boston Omaha Corp, coded as a sale (“S”). The transaction involved 331,500 Sky Harbour Class A shares and is classified with a transaction direction of “sell” in the filing data.