[Form 4] EASTERN CO Insider Trading Activity

Rhea-AI Filing Summary

The Eastern Company (EML) insider activity: Director and 10% owner James A. Mitarotonda reported open‑market purchases of common shares. On 11/12/2025, an indirect account bought 1,467 shares at $19.5436. On 11/13/2025, the same indirect account bought 933 shares at $19.7859.

Following these transactions, indirect holdings stood at 632,500 shares through Barington Companies Equity Partners, L.P., and direct holdings were 40,955 shares. The filing notes the reporting person disclaims beneficial ownership of indirectly held securities except to the extent of any pecuniary interest.

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
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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^*

MITAROTONDA JAMES A

(Last) (First) (Middle)

888 SEVENTH AVENUE 6TH FL

(Street)

NEW YORK NY 10019

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
EASTERN CO [ EML ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/12/2025

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

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	11/12/2025		P		1,467	A	$19.5436	631,567	I	By Barington Companies Equity Partners, L.P.(1)(2)
Common Shares	11/13/2025		P		933	A	$19.7859	632,500	I	By Barington Companies Equity Partners L.P(1)(2)
Common Shares								40,955	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The reporting person is the sole stockholder and director of LNA Capital Corp. LNA Capital Corp. is the general partner of Barington Capital Group, L.P., which is the majority member of Barington Capital Investors, LLC ("Barington Investors"). Barington Investors is the general partner of Barington Companies Equity Partners L.P.

2. The reporting person disclaims beneficial ownership of these securities, except to the extent of the pecuniary interests therein, and this report shall not be deemed to be an admission that the reporting person is the beneficial owner of these shares for the purposes of Section 16 or any other purpose.

	/s/James A. Mitarotonda	11/14/2025
	** 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.

FAQ

What did EML insider James A. Mitarotonda report?

He reported purchases of 1,467 shares at $19.5436 on 11/12/2025 and 933 shares at $19.7859 on 11/13/2025.

How many EML shares are indirectly held after the reported trades?

Indirect holdings were 632,500 shares following the reported transactions.

How many EML shares does the insider hold directly?

Direct holdings were 40,955 shares as shown in the filing.

Through which entity were the indirect EML purchases made?

Through Barington Companies Equity Partners, L.P.

What is the insider’s relationship to Eastern Company (EML)?

He is a Director and 10% Owner.

Does the insider claim full beneficial ownership of the indirect shares?

No. The filing states a disclaimer of beneficial ownership except for pecuniary interests.