Teresa M. Vermillion - 13 Aug 2025 Form 4 Insider Report for OLIN Corp (OLN)

Role
VP & Treasurer
Signature
/s/ E.C. Tanner, Attorney-in-Fact
Issuer symbol
OLN
Transactions as of
13 Aug 2025
Net transactions value
-$47,802
Form type
4
Filing time
15 Aug 2025, 13:01:54 UTC
Previous filing
21 Feb 2025
Next filing
28 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
VERMILLION TERESA M VP & Treasurer C/O OLIN CORPORATION, 190 CARONDELET PLZ, STE 1530, CLAYTON /s/ E.C. Tanner, Attorney-in-Fact 15 Aug 2025 0001729998

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OLN Common Stock Options Exercise $78,840 +6,000 +35% $13.14 23,199 13 Aug 2025 Direct F1
transaction OLN Common Stock Sale $126,642 -6,000 -26% $21.11 17,199 13 Aug 2025 Direct F2
holding OLN Common Stock 141 13 Aug 2025 By ESOP Trustee F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction OLN Employee Stock Options (Right to Buy) Options Exercise $0 -6,000 -57% $0.000000 4,500 13 Aug 2025 Common Stock 6,000 $13.14 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Amount includes 427.769 shares held under dividend reinvestment plans acquired periodically in transactions, which are exempt from Section 16(b).
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.07 to $21.135, inclusive. The reporting person undertakes to provide to Olin Corporation, any security holder of Olin Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4.
F3 The figure represents shares of Olin Common Stock held under the Olin Corporation Retirement Savings Plan, a tax conditioned plan reflecting transactions exempt under Rule 16b-3, as reported by the RSP Plan Administrator as of August 13, 2025.