Olin Corporation

OLNNYSEBasic Materials● Active

$24.46

$-0.08(-0.33%)

Market Cap$2.8B

P/E Ratio—

52W High$30.46

52W Low$18.08

Avg Volume2.5M

Open$24.69

Beta1.17

Insider Trades Ownership Employees

Olin Corporation (OLN) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · OLN · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Olin Corporation insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

OLN insider buying and selling by quarter

OLN insider selling · OLN insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

501K251K0

2024 Q4

2025 Q1

2025 Q2

2025 Q3

2025 Q4

2026 Q1

2026 Q2

2027 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · OLN ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

OLN executive sell shares · OLN board member insider trading · OLN insider trading SEC filing

Showing 47 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jun 1, 2026	Kohl Florian J VP & Pres,Epoxy&International	Option	1,250	—	—	8,441	Form 4
Jun 1, 2026	Kohl Florian J VP & Pres,Epoxy&International	Other	492	$25.67	$13K	7,949	Form 4
May 15, 2026	Kohl Florian J VP & Pres,Epoxy&International	Option	2,500	—	—	8,010	Form 4
May 15, 2026	Kohl Florian J VP & Pres,Epoxy&International	Other	819	$27.07	$22K	7,191	Form 4
May 1, 2026	Ehrhardt Marc VP & Pres Corp Development	Option	2,500	—	—	27,706	Form 4
May 1, 2026	Ehrhardt Marc VP & Pres Corp Development	Other	1,877	$28.48	$53K	25,829	Form 4
May 1, 2026	Ehrhardt Marc VP & Pres Corp Development	Option	5,206	—	—	25,206	Form 4
Mar 18, 2026	Lane Kenneth Todd President & CEO · Director	Option	50,000	—	—	119,962	Form 4
Mar 18, 2026	Lane Kenneth Todd President & CEO · Director	Other	19,675	$26.25	$516K	100,287	Form 4
Feb 25, 2026	Carter Deon VP & President CAPV	Sale	6,500	$23.73	$154K	357	Form 4
Feb 20, 2026	Castle Angela M VP & Chief Legal Officer	Option	3,380	—	—	4,910	Form 4
Feb 20, 2026	Castle Angela M VP & Chief Legal Officer	Other	1,003	$24.09	$24K	3,907	Form 4
Feb 24, 2026	Castle Angela M VP & Chief Legal Officer	Sale	2,379.263	$24.25	$58K	1,527.738	Form 4
Feb 20, 2026	VERMILLION TERESA M VP & Treasurer	Option	2,318	—	—	19,596	Form 4
Feb 20, 2026	VERMILLION TERESA M VP & Treasurer	Other	674	$24.09	$16K	18,922	Form 4
Feb 20, 2026	Sumner R Nichole VP & Controller	Option	1,835	—	—	26,685	Form 4
Feb 20, 2026	Sumner R Nichole VP & Controller	Other	538	$24.09	$13K	26,147	Form 4
Feb 20, 2026	Slater Todd A VP & CFO	Option	8,690	—	—	53,393	Form 4
Feb 20, 2026	Slater Todd A VP & CFO	Other	3,850	$24.09	$93K	49,543	Form 4
Feb 20, 2026	Lane Kenneth Todd President & CEO · Director	Option	36,206	—	—	78,773	Form 4
Feb 20, 2026	Lane Kenneth Todd President & CEO · Director	Other	8,811	$24.09	$212K	69,962	Form 4
Feb 20, 2026	Kohl Florian J VP & Pres,Epoxy&International	Option	6,035	—	—	6,980	Form 4
Feb 20, 2026	Kohl Florian J VP & Pres,Epoxy&International	Other	1,470	$24.09	$35K	5,510	Form 4
Feb 20, 2026	Carter Deon VP & President CAPV	Option	6,759	—	—	8,650	Form 4
Feb 20, 2026	Carter Deon VP & President CAPV	Other	1,793	$24.09	$43K	6,857	Form 4

Kohl Florian J

VP & Pres,Epoxy&International

Option

Date

Jun 1

1,250

Price

—

Value

—

View Form 4 on SEC.gov

Kohl Florian J

VP & Pres,Epoxy&International

Other

Date

Jun 1

492

Price

$25.67

Value

$13K

View Form 4 on SEC.gov

Kohl Florian J

VP & Pres,Epoxy&International

Option

Date

May 15

2,500

Price

—

Value

—

View Form 4 on SEC.gov

Kohl Florian J

VP & Pres,Epoxy&International

Other

Date

May 15

819

Price

$27.07

Value

$22K

View Form 4 on SEC.gov

Ehrhardt Marc

VP & Pres Corp Development

Option

Date

May 1

2,500

Price

—

Value

—

View Form 4 on SEC.gov

Ehrhardt Marc

VP & Pres Corp Development

Other

Date

May 1

1,877

Price

$28.48

Value

$53K

View Form 4 on SEC.gov

Ehrhardt Marc

VP & Pres Corp Development

Option

Date

May 1

5,206

Price

—

Value

—

View Form 4 on SEC.gov

Lane Kenneth Todd

President & CEO · Director

Option

Date

Mar 18

50,000

Price

—

Value

—

View Form 4 on SEC.gov

Lane Kenneth Todd

President & CEO · Director

Other

Date

Mar 18

19,675

Price

$26.25

Value

$516K

View Form 4 on SEC.gov

Carter Deon

VP & President CAPV

Sale

Date

Feb 25

6,500

Price

$23.73

Value

$154K

View Form 4 on SEC.gov

Castle Angela M

VP & Chief Legal Officer

Option

Date

Feb 20

3,380

Price

—

Value

—

View Form 4 on SEC.gov

Castle Angela M

VP & Chief Legal Officer

Other

Date

Feb 20

1,003

Price

$24.09

Value

$24K

View Form 4 on SEC.gov

Castle Angela M

VP & Chief Legal Officer

Sale

Date

Feb 24

2,379.263

Price

$24.25

Value

$58K

View Form 4 on SEC.gov

VERMILLION TERESA M

VP & Treasurer

Option

Date

Feb 20

2,318

Price

—

Value

—

View Form 4 on SEC.gov

VERMILLION TERESA M

VP & Treasurer

Other

Date

Feb 20

674

Price

$24.09

Value

$16K

View Form 4 on SEC.gov

Sumner R Nichole

VP & Controller

Option

Date

Feb 20

1,835

Price

—

Value

—

View Form 4 on SEC.gov

Sumner R Nichole

VP & Controller

Other

Date

Feb 20

538

Price

$24.09

Value

$13K

View Form 4 on SEC.gov

Slater Todd A

VP & CFO

Option

Date

Feb 20

8,690

Price

—

Value

—

View Form 4 on SEC.gov

Slater Todd A

VP & CFO

Other

Date

Feb 20

3,850

Price

$24.09

Value

$93K

View Form 4 on SEC.gov

Lane Kenneth Todd

President & CEO · Director

Option

Date

Feb 20

36,206

Price

—

Value

—

View Form 4 on SEC.gov

Lane Kenneth Todd

President & CEO · Director

Other

Date

Feb 20

8,811

Price

$24.09

Value

$212K

View Form 4 on SEC.gov

Kohl Florian J

VP & Pres,Epoxy&International

Option

Date

Feb 20

6,035

Price

—

Value

—

View Form 4 on SEC.gov

Kohl Florian J

VP & Pres,Epoxy&International

Other

Date

Feb 20

1,470

Price

$24.09

Value

$35K

View Form 4 on SEC.gov

Carter Deon

VP & President CAPV

Option

Date

Feb 20

6,759

Price

—

Value

—

View Form 4 on SEC.gov

Carter Deon

VP & President CAPV

Other

Date

Feb 20

1,793

Price

$24.09

Value

$43K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 2

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About OLN insider trading

OLN insider trades

Olin Corporation (OLN) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including VERMILLION TERESA M (VP & Treasurer), Kohl Florian J (VP & Pres,Epoxy&International), Carter Deon (VP & President CAPV). Over the past 12 months, 5 insiders have filed transactions with the SEC. OLN insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Olin Corporation's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

OLN insider trading · 5 questions

The insiders of Olin Corporation (OLN) include executives and directors such as VERMILLION TERESA M (VP & Treasurer), Kohl Florian J (VP & Pres,Epoxy&International), Carter Deon (VP & President CAPV), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

OLN board member insider tradingwho are OLN insidersOLN insider rosterOlin Corporation executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026