Olin (OLN) VP converts RSUs into stock, withholds 1,877 shares

Rhea-AI Filing Summary

Olin Corp executive Marc Ehrhardt reported routine equity-compensation transactions. On May 1, 2026, he exercised restricted stock units that convert into common stock on a one-to-one basis, acquiring 2,500 and 5,206 shares of common stock.

To cover tax obligations, 1,877 common shares were withheld at $28.48 per share. Following these transactions, Ehrhardt directly held 25,206 common shares, while remaining restricted stock units from earlier grants continue to vest in future years.

Insider Trade Summary

7,706 shares exercised/converted

Mixed 5 txns

Insider Ehrhardt Marc

Role VP & Pres Corp Development

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	5,206	$0.00	--
Exercise	Restricted Stock Units	2,500	$0.00	--
Exercise	Common Stock	5,206	$0.00	--
Exercise	Common Stock	2,500	$0.00	--
Tax Withholding	Common Stock	1,877	$28.48	$53K

Holdings After Transaction: Restricted Stock Units — 10,412 shares (Direct, null); Common Stock — 25,206 shares (Direct, null)

Footnotes (1)

1. Restricted stock units convert into common stock on a one-to-one basis. On May 1, 2025 the reporting person was granted 15,618 restricted stock units, 5,206 which vested on May 1, 2026, 5,206 vest on May 1, 2027 and 5,206 vest on May 1, 2028. On May 1, 2025 the reporting person was granted 10,000 restricted stock units, 2,500 which vested on May 1, 2026, 2,500 vest on May 1, 2027 and 5,000 vest on May 1, 2028.

Key Figures

Shares withheld for taxes: 1,877 shares at $28.48 RSUs converted grant 1: 2,500 shares RSUs converted grant 2: 5,206 shares +3 more

6 metrics

Shares withheld for taxes 1,877 shares at $28.48 Tax-withholding disposition of common stock

RSUs converted grant 1 2,500 shares Restricted stock units exercised into common stock

RSUs converted grant 2 5,206 shares Restricted stock units exercised into common stock

Common shares held after 25,206 shares Direct Olin common stock ownership after transactions

Remaining RSUs grant A 7,500 units Restricted stock units remaining after 2,500 vested

Remaining RSUs grant B 10,412 units Restricted stock units remaining after 5,206 vested

Key Terms

Restricted stock units, derivative security, tax-withholding disposition, one-to-one basis

4 terms

Restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

one-to-one basis financial

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

Form 4 Insider Transactions: What Each Field Means →

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^*

Ehrhardt Marc

(Last) (First) (Middle)

190 CARONDELET PLAZA

SUITE 1530

(Street)

CLAYTON MISSOURI 63105-3443

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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	05/01/2026		M		5,206	A	(1)	25,206	D
Common Stock	05/01/2026		M		2,500	A	(1)	27,706	D
Common Stock	05/01/2026		F		1,877	D	$28.48	25,829	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)	05/01/2026		M			5,206	(2)	(2)	Common Stock	5,206	$0	10,412	D
Restricted Stock Units	(1)	05/01/2026		M			2,500	(3)	(3)	Common Stock	2,500	$0	7,500	D

Explanation of Responses:

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

2. On May 1, 2025 the reporting person was granted 15,618 restricted stock units, 5,206 which vested on May 1, 2026, 5,206 vest on May 1, 2027 and 5,206 vest on May 1, 2028.

3. On May 1, 2025 the reporting person was granted 10,000 restricted stock units, 2,500 which vested on May 1, 2026, 2,500 vest on May 1, 2027 and 5,000 vest on May 1, 2028.

Remarks:

	/s/ E.C. Tanner, Attorney-in-Fact	05/05/2026
	** 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 did Olin (OLN) executive Marc Ehrhardt report on this Form 4?

Marc Ehrhardt reported routine equity-compensation activity, including exercises of restricted stock units into Olin common stock and a share withholding for taxes. These actions convert prior awards into shares rather than representing an open-market stock purchase or sale.

How many Olin (OLN) shares were withheld for Marc Ehrhardt’s taxes?

The filing shows 1,877 Olin common shares were withheld to satisfy tax liabilities at a price of $28.48 per share. This tax-withholding disposition is coded "F" and is not an open-market sale or discretionary trade in the stock.

How many Olin (OLN) shares did Marc Ehrhardt acquire through RSU exercises?

Ehrhardt acquired 2,500 and 5,206 Olin common shares through exercises of restricted stock units that convert on a one-to-one basis. These exercises turn previously granted RSUs into actual shares as portions of long-term incentive awards vest over time.

What are Marc Ehrhardt’s Olin (OLN) share holdings after these transactions?

After the reported transactions, Ehrhardt directly held 25,206 Olin common shares. He also continues to hold unvested restricted stock units from earlier grants, which are scheduled to vest in future years according to the grant-footnote schedules.

What do the footnotes reveal about Marc Ehrhardt’s Olin (OLN) RSU grants?

Footnotes state he received 15,618 RSUs on May 1, 2025, vesting 5,206 units annually from 2026 to 2028, and 10,000 RSUs on the same date, vesting 2,500, 2,500, and 5,000 units from 2026 through 2028.