Fuller & Thaler (OLN) reports 5,015,876.93 shares, 4.41% stake

Rhea-AI Filing Summary

Olin Corp ownership update: Fuller & Thaler Asset Management, Inc. reports beneficial ownership of 5,015,876.93 shares of Common Stock, representing 4.41% of the class. The filing is an amendment to a Schedule 13G/A and is signed on 05/13/2026.

Insights

Governance Analyst

Passive investor reports a sub-5% stake with sole voting and dispositive power.

Fuller & Thaler reports 5,015,876.93 shares and 4.41% ownership, with sole voting power shown as 5,007,676.93 and sole dispositive power as 5,015,876.93. The amendment updates prior Schedule 13G records.

Because the stake is under 5 percent, the filing characterizes a passive holding; subsequent filings would show any material change in ownership or voting intent.

Key Figures

Beneficial ownership: 5,015,876.93 shares Percent of class: 4.41% Sole voting power: 5,007,676.93 shares +1 more

4 metrics

Beneficial ownership 5,015,876.93 shares reported in Schedule 13G/A amendment

Percent of class 4.41% percent of common stock beneficially owned

Sole voting power 5,007,676.93 shares sole power to vote reported by filer

Sole dispositive power 5,015,876.93 shares sole power to dispose reported by filer

Key Terms

Schedule 13G/A, Beneficial ownership, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment to Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial ownership financial

"Amount beneficially owned: 5,015,876.93"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 5,015,876.93"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Olin Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

680665205

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 680665205

1

Names of Reporting Persons

Fuller & Thaler Asset Management, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 5,007,676.93
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,015,876.93
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,015,876.93

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.41 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Olin Corp
(b)	Address of issuer's principal executive offices: 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105
Item 2.
(a)	Name of person filing: Fuller & Thaler Asset Management, Inc.
(b)	Address or principal business office or, if none, residence: 411 Borel Avenue, Suite 300, San Mateo, CA 94402
(c)	Citizenship: California corporation
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 680665205
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 5,015,876.93
(b)	Percent of class: 4.41 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 5,007,676.93
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5,015,876.93
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Fuller & Thaler Asset Management, Inc.

Signature:	/s/ Hanna Zanoni
Name/Title:	Chief Compliance Officer
Date:	05/13/2026

FAQ

What stake does Fuller & Thaler report in Olin (OLN)?

They report beneficial ownership of 5,015,876.93 shares, equal to 4.41% of Olin's common stock. This represents the total shares they state they have sole power to dispose of, as shown in the amendment signed on 05/13/2026.

Does Fuller & Thaler have voting control over its reported OLN shares?

Yes; the filing shows sole power to vote for 5,007,676.93 shares. The report lists no shared voting power, indicating voting authority is reported as exercised solely by the filer for nearly all held shares.

Is the Fuller & Thaler position in OLN classified as active or passive?

The Schedule 13G/A amendment indicates an ownership filing consistent with a passive investor reporting under Schedule 13G rules. The filing describes ownership under the "5 Percent or Less of a Class" heading and does not assert active control language.

When was the Schedule 13G/A amendment signed for OLN?

The amendment bears a signature date of 05/13/2026. The cover also references 03/31/2026 as a related date in the filing header, and the amendment updates previously reported ownership figures.