Teresa M. Vermillion is VP & Treasurer at OLIN Corp (OLN). They have made 5 open-market trades across 1 company since 2019, most recently 2026-02-20.
CIK 0001729998
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
2 open-market purchases totalling $15K since 2019, against 3 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| OLN | 18,922 | $342K |
Shares reported on the most recent Form 4, priced at the 2026-02-24 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| OLN | SELL | 2025-11-26 | 2025-11-28 | $20.86 | $94K | +3.5% | +0.8% | +14.7% |
| OLN | SELL | 2025-08-13 | 2025-08-15 | $21.11 | $127K | +9.5% | +19.3% | -2.3% |
| OLN | SELL | 2021-05-25 | 2021-05-26 | $48.64 | $389K | +2.5% | -3.6% | -3.9% |
| OLN | BUY | 2019-08-09 | 2019-08-13 | $17.73 | $4K | -9.0% | +10.6% | +14.1% |
| OLN | BUY | 2019-08-07 | 2019-08-09 | $18.12 | $11K | -7.2% | +4.5% | +8.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.