[Form 4] Eastman Chemical Company Insider Trading Activity

Rhea-AI Filing Summary

Mark J. Costa, CEO and Board Chair of Eastman Chemical Company (EMN), purchased 7,400 shares of the company's common stock on 08/27/2025 at a price of $67.89 per share. After the transaction, Mr. Costa beneficially owned 453,986 shares directly and an additional 3,153 shares indirectly through an ESOP. The Form 4 was signed by Mark D. Austin by power of attorney on 08/28/2025.

The filing records a routine insider purchase rather than a sale or derivative activity; no options, warrants, or other derivative transactions are reported. The disclosure shows the reporting person's roles as Director and CEO & Board Chair, confirming insider status and materiality for investor monitoring of executive transactions.

Insights

Financial Analyst

TL;DR: CEO purchased 7,400 shares at $67.89, a modest but supportive insider buy signal.

The transaction represents a straightforward open-market purchase by the company's CEO and board chair. At 7,400 shares, the purchase size is small relative to the CEO's total direct holdings (453,986 shares), so its immediate impact on valuation or ownership concentration is limited. Nonetheless, insider purchases can signal executive confidence in company prospects. No derivative activity or disposition accompanies this filing, reducing complexity for investors assessing insider intent.

Corporate Governance Expert

TL;DR: Routine Form 4 disclosure documents an insider purchase; governance implications are limited.

The filing properly identifies the reporting person as both an officer and director and discloses the ESOP-held indirect interest. The Form 4 was executed by power of attorney and timely filed following the transaction date. There are no unusual vesting, derivative, or related-party transactions disclosed. From a governance perspective, this is a compliant, routine disclosure that provides transparency but does not by itself indicate a material governance change.

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^*

Costa Mark J

(Last) (First) (Middle)

200 S. WILCOX DRIVE

(Street)

KINGSPORT TN 37660

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
EASTMAN CHEMICAL CO [ EMN ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO & Board Chair

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2025

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 Stock	08/27/2025		P		7,400	A	$67.89	453,986	D
Common Stock								3,153	I	By ESOP

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:

Remarks:

	/s/ Mark D. Austin, by Power of Attorney for Mark J. Costa	08/28/2025
	** 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 EMN insider Mark J. Costa do on 08/27/2025?

He purchased 7,400 shares of Eastman Chemical common stock at $67.89 per share on 08/27/2025, as reported on Form 4.

How many EMN shares does CEO Mark Costa own after this transaction?

453,986 shares directly and 3,153 shares indirectly through an ESOP, according to the Form 4.

Was any derivative activity or sale reported in this Form 4 for EMN?

No. The filing reports only a non-derivative purchase of common stock and shows no options, warrants, or dispositions.

Who signed the Form 4 for EMN and when?

Mark D. Austin executed the filing by power of attorney for Mark J. Costa on 08/28/2025.

Does this Form 4 indicate a material change in governance at EMN?

No. The filing documents an insider purchase and discloses roles; it does not report leadership changes or governance actions.