Barington fund buys 7,409 Eastern Co. shares

Eastern Co. reported insider-related buying of its common shares through an affiliated investment fund.

Rhea-AI Filing Summary

Eastern Co. reported insider-related buying of its common shares through an affiliated investment fund. Barington Companies Equity Partners L.P., an entity associated with director and large shareholder James A. Mitarotonda, made open‑market purchases of 5,067 shares at $18.2867 per share and 2,342 shares at $18.7426 per share. After these trades, the fund’s indirect holdings reached 642,342 common shares, while Mitarotonda also holds 42,794 shares directly. The reporting persons disclaim beneficial ownership of these securities beyond their pecuniary interest.

Insider Trade Summary

Net Buyer: 7,409 shares

Net Buy 3 txns

Insider MITAROTONDA JAMES A, BARINGTON COMPANIES EQUITY PARTNERS L P, BARINGTON COMPANIES MANAGEMENT, LLC

Role Director, 10% Owner | 10% Owner | Insider

Bought 7,409 shs ($137K)

Type	Security	Shares	Price	Value
Purchase	Common Shares	2,342	$18.7426	$44K
Purchase	Common Shares	5,067	$18.2867	$93K
holding	Common Shares	--	--	--

Holdings After Transaction: Common Shares — 642,342 shares (Indirect, by Barington Companies Equity Partners, L.P.); Common Shares — 42,794 shares (Direct)

Footnotes (2)

1. F1. James A. Mitarotonda 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 Companies Investors, LLC ("Barington Investors"). Barington Investors is the general partner of Barington Companies Equity Partners L.P. Barington Companies Management, LLC is the investment adviser to Barington Companies Equity Partners L.P.
2. F2. Each of the reporting persons 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 each of the reporting persons is the beneficial owner of these shares for the purposes of Section 16 or any other purpose.

FAQ

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What insider activity did Eastern Co. (EML) report in this Form 4?

Eastern Co. reported that Barington Companies Equity Partners L.P., an entity associated with director James A. Mitarotonda, bought 7,409 common shares in open‑market transactions. These purchases increased the fund’s indirect ownership stake in the company’s common stock.

How many Eastern Co. (EML) shares were purchased and at what prices?

Barington Companies Equity Partners L.P. purchased 5,067 Eastern Co. common shares at $18.2867 per share and 2,342 shares at $18.7426 per share. All transactions were reported as open‑market purchases of non‑derivative common shares.

What are the total Eastern Co. (EML) holdings after these insider purchases?

Following the reported trades, Barington Companies Equity Partners L.P. indirectly holds 642,342 Eastern Co. common shares. James A. Mitarotonda is also shown with 42,794 common shares held directly, reflecting his personal stake separate from the fund’s indirect ownership.

Who is James A. Mitarotonda in relation to Eastern Co. (EML)?

James A. Mitarotonda is identified as a director and a ten percent owner of Eastern Co. He is also the control person behind entities linked to Barington Companies Equity Partners L.P., which reported the open‑market purchases of Eastern Co. common shares.

Do the reporting persons claim full beneficial ownership of the Eastern Co. (EML) shares?

No. The filing states that each reporting person disclaims beneficial ownership of the securities except to the extent of their pecuniary interests. It also clarifies that the report should not be deemed an admission of beneficial ownership for Section 16 or other purposes.

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Accepted by SEC EDGAR 03/10/2026 - 02:22 PM Learn about SEC filing dates

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^*

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)
03/06/2026

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

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

	Form filed by One Reporting Person
X	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	03/06/2026		P		5,067	A	$18.2867	640,000	I	by Barington Companies Equity Partners, L.P.(1)(2)
Common Shares	03/09/2026		P		2,342	A	$18.7426	642,342	I	by Barington Companies Equity Partners, L.P.(1)(2)
Common Shares								42,794	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

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)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

BARINGTON COMPANIES EQUITY PARTNERS L P

(Last) (First) (Middle)

888 SEVENTH AVENUE 6TH FL

(Street)

NEW YORK NY 10019

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

BARINGTON COMPANIES MANAGEMENT, LLC

(Last) (First) (Middle)

888 SEVENTH AVENUE 6TH FL

(Street)

NEW YORK NY 10019

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. James A. Mitarotonda 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 Companies Investors, LLC ("Barington Investors"). Barington Investors is the general partner of Barington Companies Equity Partners L.P. Barington Companies Management, LLC is the investment adviser to Barington Companies Equity Partners L.P.

2. Each of the reporting persons 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 each of the reporting persons is the beneficial owner of these shares for the purposes of Section 16 or any other purpose.

	/s/James A. Mitarotonda	03/10/2026
	/s/ Barington Companies Equity Partners LP	03/10/2026
	/s/ Barington Companies Management, LLC	03/10/2026
	** 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).
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