Olin Corporation (OLN) has 20 known insider and institutional holders on record. The largest holder is Ferguson Scott D. with 11,963,160 shares. Other notable holders include Sachem Head GP LLC and RUPP JOSEPH D.
Over the last 12 months, insiders have made 38 transactions in OLN stock — 19 buys (valued at $463.97K) and 2 sells (valued at $211.92K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
OLN Insider Ownership
Top Holder
Ferguson Scott D.
11,963,160 shares
Buys (12 mo)
19
$463.97K value
Sells (12 mo)
2
$211.92K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Ferguson Scott D. |
Director |
11,963,160 |
2021-09-02 |
|
| 2 |
Sachem Head Gp Llc |
Director |
9,465,160 |
2022-05-24 |
|
| 3 |
Rupp Joseph D |
Chairman |
580,793 |
2016-08-19 |
|
| 4 |
Fischer John E. |
Executive Chairman |
235,158 |
2021-02-17 |
|
| 5 |
Sutton Scott Mcdougald |
President & CEO |
102,766 |
2024-03-12 |
|
| 6 |
Lane Kenneth Todd |
President & CEO |
100,000 |
2026-03-20 |
|
| 7 |
Mcintosh John L |
EVP, Synergies & Systems |
85,838 |
2020-03-05 |
|
| 8 |
Pain George H |
SVP, Gen. Counsel & Secretary |
64,866 |
2017-02-08 |
|
| 9 |
Sampson John Maurice |
EVP, Business Operations |
59,996 |
2020-03-05 |
|
| 10 |
Shipp Earl L |
Director |
52,168 |
2025-05-05 |
|
| 11 |
Weideman William H |
Director |
46,634 |
2025-05-05 |
|
| 12 |
Bunch C Robert |
Director |
45,762 |
2024-05-03 |
|
| 13 |
Grannum Clive A |
President, Gco |
44,250 |
2016-02-17 |
|
| 14 |
Chirumbole Frank W |
President, Chlor Alkali Prod. |
41,250 |
2016-02-17 |
|
| 15 |
Bogus Donald W |
Director |
40,675 |
2019-05-13 |
|
| 16 |
Ennico Dolores J |
VP, Human Resources |
39,489 |
2018-08-23 |
|
| 17 |
Benoist Gray G |
Director |
33,520 |
2021-09-14 |
|
| 18 |
Will W Anthony |
Director |
32,187 |
2025-05-05 |
|
| 19 |
Darnall Matthew S |
Director |
32,187 |
2025-05-05 |
|
| 20 |
Smith Vince J |
Director |
29,900 |
2021-03-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-18 |
Lane Kenneth Todd |
President & CEO |
Option Exercise (Sell) |
50,000 |
- |
- |
| 2026-02-25 |
Carter Deon |
VP & President Capv |
Informative Sell |
6,500 |
$23.73 |
$154.23K |
| 2026-02-24 |
Castle Angela M |
VP & Chief Legal Officer |
Informative Sell |
2,379 |
$24.25 |
$57.69K |
| 2026-02-20 |
Castle Angela M |
VP & Chief Legal Officer |
Tax Withholding of RSU |
1,003 |
$24.09 |
$24.16K |
| 2026-02-20 |
Carter Deon |
VP & President Capv |
Tax Withholding of RSU |
1,793 |
$24.09 |
$43.19K |
| 2026-02-20 |
Kohl Florian J |
VP & Pres,epoxy&international |
Tax Withholding of RSU |
1,470 |
$24.09 |
$35.41K |
| 2026-02-20 |
Lane Kenneth Todd |
President & CEO |
Tax Withholding of RSU |
8,811 |
$24.09 |
$212.26K |
| 2026-02-20 |
Vermillion Teresa M |
VP & Treasurer |
Option Exercise (Sell) |
2,318 |
- |
- |
| 2026-02-20 |
Flaugher Brett A |
VP & Pres, Winchester |
Tax Withholding of RSU |
1,839 |
$24.09 |
$44.3K |
| 2026-02-20 |
Sumner R Nichole |
VP & Controller |
Option Exercise (Sell) |
1,835 |
- |
- |
| 2026-02-20 |
Slater Todd A |
VP & CFO |
Option Exercise (Sell) |
8,690 |
- |
- |
| 2026-02-18 |
Ehrhardt Marc |
VP & Pres Corp Development |
RSU Award |
16,007 |
- |
- |
| 2026-02-18 |
Castle Angela M |
VP & Chief Legal Officer |
RSU Award |
26 |
- |
- |
| 2026-02-18 |
Carter Deon |
VP & President Capv |
RSU Award |
27,211 |
- |
- |
| 2026-02-18 |
Kohl Florian J |
VP & Pres,epoxy&international |
RSU Award |
20,009 |
- |
- |
| 2026-02-18 |
Lane Kenneth Todd |
President & CEO |
RSU Award |
132,053 |
- |
- |
| 2026-02-18 |
Vermillion Teresa M |
VP & Treasurer |
RSU Award |
8,004 |
- |
- |
| 2026-02-18 |
Flaugher Brett A |
VP & Pres, Winchester |
RSU Award |
237 |
- |
- |
| 2026-02-18 |
Sumner R Nichole |
VP & Controller |
RSU Award |
6,403 |
- |
- |
| 2026-02-18 |
Slater Todd A |
VP & CFO |
RSU Award |
32,013 |
- |
- |
| 2026-02-03 |
Sumner R Nichole |
VP & Controller |
Option Exercise (Sell) |
4,750 |
$13.14 |
$62.42K |
| 2026-02-03 |
Slater Todd A |
VP & CFO |
Option Exercise (Sell) |
92,250 |
$13.14 |
$1.21M |
| 2025-11-26 |
Vermillion Teresa M |
VP & Treasurer |
Option Exercise (Sell) |
4,500 |
$13.14 |
$59.13K |
| 2025-08-13 |
Vermillion Teresa M |
VP & Treasurer |
Option Exercise (Sell) |
6,000 |
$13.14 |
$78.84K |
| 2025-08-06 |
Ehrhardt Marc |
VP & Pres Corp Development |
Informative Buy |
20,000 |
$18.70 |
$373.96K |
