SEC Form 4 · Updated Daily
OLN
— Olin Corporation OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Sachem Head GP LLC | Director | 9,465,160 | 2022-05-23 | S |
| Uncas GP LLC | Director | 9,465,160 | 2022-05-23 | S |
| Sachem Head Capital Management LP | Director | 9,465,160 | 2022-05-23 | S |
| Ferguson Scott D. | Director | 9,465,160 | 2022-05-23 | S |
| RUPP JOSEPH D | Director | 760,043 | 2016-11-14 | M |
| Fischer John E. | Director · Officer | 235,158 | 2021-02-15 | A |
| Sutton Scott McDougald | Director · Officer | 139,223 | 2024-02-27 | M |
| Lane Kenneth Todd | Director · Officer | 119,962 | 2026-03-18 | M |
| BOGUS DONALD W | Director | 111,618 | 2018-11-02 | P |
| MCINTOSH JOHN L | Officer | 85,838 | 2020-02-18 | A |
| GRIFFIN DONALD W | Director | 78,169 | 2007-02-08 | A |
| VARILEK JAMES A | Officer | 67,761.44 | 2022-11-18 | M |
| PAIN GEORGE H | Officer | 64,865.83 | 2017-02-06 | S |
| LARRIMORE RANDALL W | Director | 62,793 | 2020-03-02 | A |
| SAMPSON JOHN MAURICE | Officer | 59,996.33 | 2020-02-18 | A |
| OKeefe Thomas J | Officer | 59,706 | 2017-03-01 | M |
| Slater Todd A | Officer | 53,393 | 2026-02-20 | M |
| ROMPALA RICHARD M | Director | 50,500 | 2015-11-04 | P |
| SCHULZ PHILIP J | Director | 46,661 | 2017-03-01 | A |
| Smith Vince J | Director | 41,006 | 2021-03-01 | A |
| Ennico Dolores J | Director | 39,489 | 2018-08-21 | A |
| Gumpel Damian | Officer | 34,539 | 2024-02-22 | A |
| Ehrhardt Marc | Officer | 27,706 | 2026-05-01 | M |
| Sumner R Nichole | Officer | 26,685 | 2026-02-20 | M |
| Curley Stephen C | Reporting Owner | 25,837 | 2018-03-01 | M |
| Hammett Richard M | Officer | 25,034 | 2011-02-28 | A |
| Chirumbole Frank W | Officer | 24,900 | 2015-12-02 | S |
| McGough Dennis R | Officer | 21,562 | 2009-04-30 | A |
| Dawson Pat D | Officer | 21,551 | 2022-02-22 | A |
| VERMILLION TERESA M | Officer | 19,596 | 2026-02-20 | M |
| PETERS VALERIE A | Officer | 18,516 | 2024-02-21 | A |
| RUGGIERO ANTHONY W | Director | 14,820 | 2006-02-09 | A |
| Weideman William H | Director | 13,140 | 2024-05-01 | A |
| Benoist Gray G | Director | 11,579 | 2021-04-30 | S |
| Shipp Earl L | Director | 10,160 | 2021-03-01 | A |
| Will W Anthony | Director | 10,000 | 2021-11-03 | P |
| Kohl Florian J | Officer | 8,441 | 2026-06-01 | M |
| Williams Carol A | Director | 7,947 | 2025-05-01 | A |
| FLAUGHER BRETT A | Officer | 6,513 | 2026-02-20 | M |
| GRANNUM CLIVE A | Director | 6,480.61 | 2015-12-02 | I |
| Greer GBruce | Director | 6,480 | 2015-10-05 | D |
| Haferkamp Jeffrey J | Officer | 5,825 | 2007-08-22 | A |
| Babcock Beverley A | Director | 5,625 | 2026-05-01 | A |
| KAMSKY VIRGINIA A | Director | 5,280 | 2008-02-14 | A |
| Castle Angela M | Officer | 4,910 | 2026-02-20 | M |
| HASCALL JAMES G | Director | 4,793 | 2006-02-09 | A |
| HAUPTFUHRER W BARNES | Director | 3,702 | 2021-03-01 | A |
| Carter Deon | Officer | 2,857 | 2026-06-17 | M |
| BLANCHARD ERIC A | Officer | 2,415 | 2020-02-18 | A |
| O'Brien Dana C. | Director | 2,098 | 2025-02-19 | A |
| STREETER STEPHANIE A | Director | 928 | 2018-08-09 | A |
| PIGGOTT JULIE A | Director | 761 | 2024-05-01 | A |
| OConnor John MB | Director | 335 | 2021-05-03 | S |
| Daly Edward | Director | 0 | 2025-03-05 | — |
| Darnall Matthew S | Director | 0 | 2021-09-30 | — |
| Schumacher Patrick Murphy | Officer | 0 | 2021-11-29 | — |
| BUNCH C ROBERT | Director | 0 | 2022-05-17 | S |
| Alderman Heidi S | Director | 0 | 2023-02-01 | S |
| Abel Scott Richard | Officer | 0 | 2014-08-22 | — |
| Steel Robert F | Officer | 0 | 2012-08-22 | — |
| Steel Kenneth A Jr | Officer | 0 | 2012-08-22 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-06-17 | Carter Deon | Option exercise (derivative) | 2,500 | $0.00 | 5,000 |
| 2026-06-17 | Carter Deon | Tax withholding | 609 | $24.13 | 2,248 |
| 2026-06-17 | Carter Deon | Option exercise | 2,500 | — | 2,857 |
| 2026-06-01 | Kohl Florian J | Option exercise (derivative) | 1,250 | $0.00 | 2,500 |
| 2026-06-01 | Kohl Florian J | Tax withholding | 492 | $25.67 | 7,949 |
| 2026-06-01 | Kohl Florian J | Option exercise | 1,250 | — | 8,441 |
| 2026-05-15 | Kohl Florian J | Option exercise (derivative) | 2,500 | $0.00 | 0 |
| 2026-05-15 | Kohl Florian J | Tax withholding | 819 | $27.07 | 7,191 |
| 2026-05-15 | Kohl Florian J | Option exercise | 2,500 | — | 8,010 |
| 2026-05-01 | Ehrhardt Marc | Option exercise (derivative) | 2,500 | $0.00 | 7,500 |
| 2026-05-01 | Ehrhardt Marc | Option exercise (derivative) | 5,206 | $0.00 | 10,412 |
| 2026-05-01 | Ehrhardt Marc | Tax withholding | 1,877 | $28.48 | 25,829 |
| 2026-05-01 | Ehrhardt Marc | Option exercise | 2,500 | — | 27,706 |
| 2026-05-01 | Ehrhardt Marc | Option exercise | 5,206 | — | 25,206 |
| 2026-05-01 | Weideman William H | Grant / award (derivative) | 7,023 | $28.48 | 53,657 |
| 2026-05-01 | Babcock Beverley A | Grant / award (derivative) | 4,916 | $28.48 | 38,508 |
| 2026-05-01 | Babcock Beverley A | Grant / award | 2,107 | $28.48 | 5,625 |
| 2026-05-01 | Darnall Matthew S | Grant / award (derivative) | 10,535 | $28.48 | 42,721.809 |
| 2026-05-01 | Williams Carol A | Grant / award (derivative) | 7,023 | $28.48 | 58,850 |
| 2026-05-01 | Shipp Earl L | Grant / award (derivative) | 7,023 | $28.48 | 59,190.528 |
| 2026-05-01 | Daly Edward | Grant / award (derivative) | 7,023 | $28.48 | 16,672 |
| 2026-05-01 | PIGGOTT JULIE A | Grant / award (derivative) | 7,023 | $28.48 | 21,494.751 |
| 2026-03-18 | Lane Kenneth Todd | Option exercise (derivative) | 50,000 | $0.00 | 100,000 |
| 2026-03-18 | Lane Kenneth Todd | Tax withholding | 19,675 | $26.25 | 100,287 |
| 2026-03-18 | Lane Kenneth Todd | Option exercise | 50,000 | — | 119,962 |
| 2026-02-25 | Carter Deon | Open-market sale | 6,500 | $23.73 | 357 |
| 2026-02-24 | Castle Angela M | Open-market sale | 2,379.263 | $24.25 | 1,527.738 |
| 2026-02-20 | FLAUGHER BRETT A | Option exercise (derivative) | 6,276 | $0.00 | 12,552 |
| 2026-02-20 | FLAUGHER BRETT A | Tax withholding | 1,839 | $24.09 | 4,674 |
| 2026-02-20 | FLAUGHER BRETT A | Option exercise | 6,276 | — | 6,513 |
| 2026-02-20 | Carter Deon | Option exercise (derivative) | 6,759 | $0.00 | 13,517 |
| 2026-02-20 | Carter Deon | Tax withholding | 1,793 | $24.09 | 6,857 |
| 2026-02-20 | Carter Deon | Option exercise | 6,759 | — | 8,650 |
| 2026-02-20 | Kohl Florian J | Option exercise (derivative) | 6,035 | $0.00 | 12,068 |
| 2026-02-20 | Kohl Florian J | Tax withholding | 1,470 | $24.09 | 5,510 |
| 2026-02-20 | Kohl Florian J | Option exercise | 6,035 | — | 6,980 |
| 2026-02-20 | Lane Kenneth Todd | Option exercise (derivative) | 36,206 | $0.00 | 74,411 |
| 2026-02-20 | Lane Kenneth Todd | Tax withholding | 8,811 | $24.09 | 69,962 |
| 2026-02-20 | Lane Kenneth Todd | Option exercise | 36,206 | — | 78,773 |
| 2026-02-20 | Slater Todd A | Option exercise (derivative) | 8,690 | $0.00 | 17,379 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.