Astronics director reports 173,838-share conversion

Q: How many ATRO shares were involved in the conversion?

Boston & Saranac LLC's November 3, 2026 transaction listed 173,838 Class B shares disposed and 173,828 common shares acquired. The LLC's reported common-stock position after the transaction was 249,828 shares.

After the conversion, Boston & Saranac LLC's reported common-stock position was 249,828 shares; Keane's direct holdings were listed separately.

Available on EDGAR 11/04/2026 - 04:02 PM EST Accepted by SEC EDGAR 11/04/2026 - 04:02 PM EST

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Form Type

Rhea-AI Filing Summary

Astronics Corp (ATRO) director Robert S. Keane reported that Boston & Saranac LLC converted 173,838 Class B shares on November 3, 2026. The transaction records list 173,838 Class B shares disposed and 173,828 common shares acquired; the LLC's reported common-stock position after the transaction was 249,828 shares. The filing also lists Keane as directly holding 13,934 common shares and 2,786 Class B shares. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Conversion: 347,666 shares

Conversion 2 txns

Insider Keane Robert S

Role Director

Type	Security	Shares	Price	Value
Conversion	$.01 PV Com Stk ^{F2, F3}	173,828	$0.00	$0.00
Conversion	$.01 PV CL B STK ^{F2, F3}	173,838	$0.00	$0.00
Holding	$.01 PV Com Stk	--	--	--
Holding	$.01 PV CL B STK	--	--	--
Holding	$.01 PV CL B STK ^F1	--	--	--

Holdings After Transaction: $.01 PV Com Stk — 249,828 shares (Indirect, Note); $.01 PV CL B STK — 248,263 shares (Indirect, Note); $.01 PV Com Stk — 13,934 shares (Direct); $.01 PV CL B STK — 2,786 shares (Direct)

Holdings Before and After: $.01 PV Com Stk, 76,000 to 249,828 shares (Indirect, Note); $.01 PV CL B STK, 422,101 to 248,263 shares (Indirect, Note)

Footnotes (3)

F1. Reporting Person is one of multiple potential beneficiaries to the direct owner of these shares, which is a trust (EAK & KRK Trust U/A/D 10-15-97 FBO Elizabeth A. Keane). The entire amount of the trust's interest is reported on this form, however the Reporting Person's proportionate interest is below 25%.
F2. Conversion of 173,838 Class B shares held by Boston & Saranac LLC on November 3, 2026.
F3. The direct owner is Boston & Saranac LLC, a Delaware limited liability company ("Boston & Saranac"). Boston & Saranac is 100% owned by a trust whose beneficiaries are the Reporting Person and his spouse

Key Figures

Class B shares disposed: 173,838 shares Common shares acquired: 173,828 shares Indirect common shares held through Boston & Saranac LLC: 249,828 shares +2 more

5 metrics

Class B shares disposed 173,838 shares Conversion reported on November 3, 2026

Common shares acquired 173,828 shares Conversion reported on November 3, 2026

Indirect common shares held through Boston & Saranac LLC 249,828 shares Reported position after the transaction on November 3, 2026

Direct common shares 13,934 shares Reported position on November 3, 2026

Direct Class B shares 2,786 shares Reported position on November 3, 2026

Key Terms

Class B shares, direct owner, proportionate interest, potential beneficiaries

4 terms

Class B shares technical

"Conversion of 173,838 Class B shares held by Boston & Saranac LLC"

Class B shares are one type of a company’s stock that carries a specific set of rights — often different voting power or dividend rules compared with other classes. For investors, that affects influence over company decisions and potential income: owning Class B might mean fewer or more votes per share or different claim on profits, like having a different seat at a decision table or a different slice of the payout pie.

direct owner technical

"The direct owner is Boston & Saranac LLC"

proportionate interest technical

"the Reporting Person's proportionate interest is below 25%"

potential beneficiaries technical

"one of multiple potential beneficiaries to the direct owner of these shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ATRO shares were involved in the conversion?

Boston & Saranac LLC's November 3, 2026 transaction listed 173,838 Class B shares disposed and 173,828 common shares acquired. The LLC's reported common-stock position after the transaction was 249,828 shares.

Who held the ATRO Class B shares in the conversion?

Boston & Saranac LLC held the 173,838 Class B shares. The LLC is 100% owned by a trust whose beneficiaries are Robert S. Keane and his spouse.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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^*

Keane Robert S

(Last)

(First)

(Middle)

130 COMMERCE WAY

(Street)

EAST AURORA

NEW YORK

14052

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ASTRONICS CORP [ ATRO ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/03/2026

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)
$.01 PV Com Stk								13,934	D
$.01 PV CL B STK								2,786	D
$.01 PV CL B STK								248,263	I	Note⁽¹⁾
$.01 PV Com Stk	11/03/2026		C⁽²⁾		173,828	A	$0	249,828	I	Note⁽³⁾
$.01 PV CL B STK	11/03/2026		C⁽²⁾		173,838	D	$0	0	I	Note⁽³⁾

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. Reporting Person is one of multiple potential beneficiaries to the direct owner of these shares, which is a trust (EAK & KRK Trust U/A/D 10-15-97 FBO Elizabeth A. Keane). The entire amount of the trust's interest is reported on this form, however the Reporting Person's proportionate interest is below 25%.

2. Conversion of 173,838 Class B shares held by Boston & Saranac LLC on November 3, 2026.

3. The direct owner is Boston & Saranac LLC, a Delaware limited liability company ("Boston & Saranac"). Boston & Saranac is 100% owned by a trust whose beneficiaries are the Reporting Person and his spouse

Remarks:

	/s/Julie Davis as Power of Attorney for Robert Sprague Keane	11/04/2026
	** 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