2 unchanged sentences
(b) Not Applicable.
−Removed: (c) During the three months ended September 30, 2025, no director or officer of Olin adopted, terminated or modified a ‘Rule 10b5-1 trading arrangement’ or ‘non-Rule 10b5-1 trading arrangement,’ as each term is defined in Item 408(a) of Regulation S-K.
+Added: (c) During the three months ended March 31, 2026, no director or officer of Olin adopted, terminated or modified a ‘Rule 10b5-1 trading arrangement’ or ‘non-Rule 10b5-1 trading arrangement,’ as each term is defined in Item 408(a) of Regulation S-K.
Exhibit Exhibit Description
−Removed: 3.1 Bylaws of Olin Corporation, as amended effective August 13 , 2025 – Exhibit 3.1 to Olin’s Form 8-K filed August 13 , 2025 *
+Added: 3.1 Bylaws of Olin Corporation as amended effective April 30 2026—Exhibit 3.1 to Olin's Form 8-K filed April 30, 2026 *
+Added: 4.1 Fourteenth Amendment, dated February 19, 2026, to Amended and Restated Credit and Funding Agreement, dated as of February December 9, 2010 among Olin Corporation, the Lenders (as defined therein) and PNC Bank, National Association, as administrative agent – Exhibit 4.22 to Olin’s Form 10-K filed February 20, 2026 *
+Added: 10.1 First Amendment, dated February 19, 2026, to Credit Agreement, dated as of March 14, 2025, among Olin Corporation, the Lenders and Issuing Banks (as defined therein) and Bank of America, N.A., as administrative agent – Exhibit 10.31 to Olin’s Form 10-K filed February 20, 2026 *
31.1 Section 302 Certification Statement of Chief Executive Officer
16 unchanged sentences
(Authorized Officer)
−Removed: October 28, 2025
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.