Olin (NYSE: OLN) VP granted 24,010 RSUs plus common stock

Rhea-AI Filing Summary

OLIN Corp executive Brett A. Flaugher reported equity awards and updated holdings. On February 18, 2026, he acquired 24,010 restricted stock units, each representing a contingent right to receive one share of Olin common stock. These restricted stock units vest in three annual installments beginning on February 18, 2027.

On the same date, he also acquired 237 shares of Olin common stock as a grant. Following these transactions, he directly holds these awards and has an additional 88,438 shares of common stock reported as indirectly owned through a trust.

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

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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^*

FLAUGHER BRETT A

(Last) (First) (Middle)

C/O OLIN CORPORATION

190 CARONDELET PLZ, STE 1530

(Street)

CLAYTON MO 63105

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
OLIN Corp [ OLN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP & Pres, Winchester

3. Date of Earliest Transaction (Month/Day/Year)
02/18/2026

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	02/18/2026		A		237	A	$0	237	D
Common Stock								88,438	I	By Trust

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
Restricted Stock Units	(1)	02/18/2026		A		24,010		(2)	(2)	Common Stock	24,010	$0	24,010	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Olin Common Stock.

2. These restricted stock units vest in three annual installments beginning on February 18, 2027.

Remarks:

	/s/ Emily C. Tanner	02/20/2026
	** 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.

FAQ

What insider transactions did OLIN Corp (OLN) report for Brett A. Flaugher?

OLIN Corp reported that Brett A. Flaugher received equity grants rather than open-market trades. He acquired 24,010 restricted stock units and 237 shares of common stock on February 18, 2026, updating both his direct and indirect ownership positions in the company.

How many restricted stock units did OLN executive Brett Flaugher receive?

Brett Flaugher received 24,010 restricted stock units tied to OLIN Corp common stock. Each unit represents a contingent right to one share, and these units were granted on February 18, 2026, as part of an award recorded in the Form 4 filing.

When do Brett Flaugher’s OLIN Corp restricted stock units start vesting?

Flaugher’s restricted stock units start vesting on February 18, 2027. The 24,010 units vest in three annual installments, meaning portions of the award become deliverable as Olin common shares over three years, subject to the grant’s continued-eligibility conditions.

How much OLIN Corp common stock does Brett Flaugher indirectly own through a trust?

The Form 4 shows Brett Flaugher indirectly holding 88,438 OLIN Corp common shares through a trust. This is reported as indirect ownership, separate from his directly held awards, and reflects shares attributed to him via the trust structure on the transaction date.

Did Brett Flaugher buy or sell OLIN Corp (OLN) shares on the open market?

The reported transactions were awards, not open-market purchases or sales. Flaugher acquired restricted stock units and common shares with a per-share transaction price of $0.0000, indicating equity grants rather than discretionary trading in OLIN Corp stock.

What is Brett Flaugher’s role at OLIN Corp noted in this Form 4?

The filing lists Brett A. Flaugher as an officer of OLIN Corp, serving as Vice President and President of Winchester. His position is disclosed alongside the details of the stock unit and common share grants reported in this Form 4.