Olin (NYSE: OLN) CEO exercises 50,000 RSUs and withholds shares for tax

Rhea-AI Filing Summary

Olin Corp’s President & CEO Kenneth Todd Lane exercised 50,000 restricted stock units into 50,000 shares of common stock. The restricted stock units convert to common stock on a one-for-one basis. As part of the same event, 19,675 common shares were withheld at a price of $26.25 per share to cover tax obligations.

Following these transactions on common stock, Lane directly held 100,287 Olin common shares. The restricted stock units stem from a 200,000-unit grant made on March 18, 2024, of which 50,000 vested on March 18, 2025, 50,000 vested on March 18, 2026, and 100,000 are scheduled to vest on March 18, 2027.

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

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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^*

Lane Kenneth Todd

(Last) (First) (Middle)

C/O OLIN CORPORATION

190 CARONDELET PLZ, SUITE 1530

(Street)

CLAYTON MISSOURI 63105

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/18/2026		M		50,000	A	(1)	119,962	D
Common Stock	03/18/2026		F		19,675	D	$26.25	100,287	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
Restricted Stock Units	(1)	03/18/2026		M			50,000	(2)	(2)	Common Stock	50,000	$0	100,000	D

Explanation of Responses:

1. Restricted stock units convert into common stock on a one-on-one basis.

2. On March 18, 2024 the reporting person was granted 200,000 restricted stock units. 50,000 vested on March 18, 2025, 50,000 vested on March 18, 2026 and 100,000 will vest on March 18, 2027.

Remarks:

	/s/ E.C. Tanner, Attorney-in-Fact	03/20/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Olin (OLN) CEO Kenneth Todd Lane report?

Kenneth Todd Lane reported exercising 50,000 restricted stock units into 50,000 shares of Olin common stock. In connection with this vesting event, 19,675 common shares were withheld at $26.25 per share to satisfy tax obligations, leaving him with 100,287 directly held common shares afterward.

How many Olin (OLN) restricted stock units did the CEO exercise and at what rate?

Lane exercised 50,000 restricted stock units that converted into 50,000 Olin common shares. The footnotes state that restricted stock units convert into common stock on a one-to-one basis, meaning each unit became one share as part of this vesting and exercise event.

How were taxes handled in Kenneth Todd Lane’s March 18, 2026 Olin transaction?

To cover tax obligations tied to the vesting and exercise, 19,675 Olin common shares were disposed of at $26.25 per share. This disposition is coded as a tax-withholding transaction, meaning the shares were delivered to satisfy tax liabilities rather than sold in an open-market trade.

How many Olin (OLN) shares does the CEO hold after these Form 4 transactions?

After the March 18, 2026 transactions, Lane directly held 100,287 Olin common shares. This figure reflects both the 50,000 shares received from exercising restricted stock units and the 19,675 shares withheld to cover tax obligations, as reported in the Form 4 share balance details.

What is the vesting schedule of Kenneth Todd Lane’s 200,000 Olin restricted stock units?

Lane was granted 200,000 restricted stock units on March 18, 2024. Footnotes state 50,000 vested on March 18, 2025, another 50,000 vested on March 18, 2026, and the remaining 100,000 restricted stock units are scheduled to vest on March 18, 2027, subject to applicable conditions.

Does the Form 4 show any remaining Olin derivative positions for the CEO after this exercise?

The derivative summary in the Form 4 is empty following this exercise, indicating no additional derivative positions are shown in this particular filing. However, the footnote notes 100,000 restricted stock units from the 2024 grant are scheduled to vest on March 18, 2027.