Form4.ai tracks every SEC insider trade in real time. See every OTTR insider filing with a free account — no card.
See every OTTR insider filing — free account, no card.
Free accountOtter Tail Corp (OTTR) has 2 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 2 sales totalling $394K. Most recent filing: Aug. 12, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Aug 12, 2026 SEC filing | KNUTSON PAUL L VP, Human Resources | Sold | $68,159 | — |
| Aug 11, 2026 SEC filing | KNUTSON PAUL L VP, Human Resources | Sold | $269,964 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.