Insider · CIK 0001729998
Teresa M Vermillion
Files at OLN (OLIN Corp). First filing Aug 15, 2025, latest Nov 28, 2025.
Teresa M Vermillion files SEC Form 4 as CFO at OLN (OLIN Corp). Since Aug 15, 2025, Teresa M Vermillion has reported 0 open-market buys worth $0 and 2 open-market sells worth $220k, the latest filed on Nov 28, 2025.
A track record needs three past buys with six months of prices behind them; Teresa M Vermillion has 0, so none is measured yet.
The newest scored trade: sold $94k of OLN on Nov 26, 2025, filed Nov 28, 2025, scored 32 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $94k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
OLN: OLIN Corp
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 32Weak | OLNsell OLIN Corp | $94k 4,500 shares | -21% | +18% from low-51% from high | |
| 38Weak | OLNsell OLIN Corp | $127k 6,000 shares | -26% | +20% from low-55% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 13, 2025 | OLN Olin Corporation | 6,000 133.33% of outstanding | $126k | Aug 13, 2025 | none |
Transactions
Every row this insider has filed, 11 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Feb 20, 2026 | OLN OLIN Corp | MOption exercise Common Stock | +2,318 | - | - | 19,596 | Feb 24, 2026 |
| Feb 20, 2026 | OLN OLIN Corp | FTax withholding Common Stock | -674 | $24.09 | $16k | 18,922 | Feb 24, 2026 |
| Feb 20, 2026 | OLN OLIN Corp | MOption exercise Restricted Stock Unitsderivative | -2,318 | $0.00 | $0 | 4,634 | Feb 24, 2026 |
| Feb 18, 2026 | OLN OLIN Corp | AGrant or award Common Stock | +79 | $0.00 | $0 | 17,278 | Feb 20, 2026 |
| Feb 18, 2026 | OLN OLIN Corp | AGrant or award Restricted Stock Unitsderivative | +8,004 | $0.00 | $0 | 8,004 | Feb 20, 2026 |
| Nov 26, 2025 | OLN OLIN Corp | MOption exercise Common Stock | +4,500 | $13.14 | $59k | 21,699 | Nov 28, 2025 |
| Nov 26, 2025 | OLN OLIN Corp | SOpen-market sale Common Stock | -4,500 | $20.86 | $94k | 17,199 | Nov 28, 2025 |
| Nov 26, 2025 | OLN OLIN Corp | MOption exercise Employee Stock Options (Right to Buy)derivative | -4,500 | $0.00 | $0 | 0 | Nov 28, 2025 |
| Aug 13, 2025 | OLN OLIN Corp | MOption exercise Common Stock | +6,000 | $13.14 | $79k | 23,199 | Aug 15, 2025 |
| Aug 13, 2025 | OLN OLIN Corp | SOpen-market sale Common Stock | -6,000 | $21.11 | $127k | 17,199 | Aug 15, 2025 |
| Aug 13, 2025 | OLN OLIN Corp | MOption exercise Employee Stock Options (Right to Buy)derivative | -6,000 | $0.00 | $0 | 4,500 | Aug 15, 2025 |
Questions about Teresa M Vermillion
Answered from the filings on this page, as of the latest one.
Is Teresa M Vermillion buying or selling?
In the last 12 months Teresa M Vermillion reported 0 open-market buys worth $0 and 1 open-market sell worth $94k on SEC Form 4; the latest was sold $94k of OLN on Nov 26, 2025. Grants, option exercises and tax withholding are not counted.
How did Teresa M Vermillion's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Teresa M Vermillion has 0.
Where does Teresa M Vermillion file Form 4?
Teresa M Vermillion has filed Form 4 at OLN (OLIN Corp) as VP & Treasurer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.