16 insiders reported 49 Form 4 transactions for Otter Tail Corp (OTTR) over the past 18 months (most recent 2026-08-12). Recent activity: KNUTSON PAUL L (VP, Human Resources) Sell 475 shares, KNUTSON PAUL L (VP, Human Resources) Sell 250 shares, KNUTSON PAUL L (VP, Human Resources) Sell 3,500 shares, KNUTSON PAUL L (VP, Human Resources) Sell 725 shares, KNUTSON PAUL L (VP, Human Resources) Buy 475 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-12 | KNUTSON PAUL L | VP, Human Resources | Sell | 475 | $44,949 |
| 2026-08-12 | KNUTSON PAUL L | VP, Human Resources | Sell | 250 | $23,210 |
| 2026-08-11 | KNUTSON PAUL L | VP, Human Resources | Sell | 3,500 | $325,885 |
| 2026-08-11 | KNUTSON PAUL L | VP, Human Resources | Sell | 725 | $0 |
| 2026-08-11 | KNUTSON PAUL L | VP, Human Resources | Buy | 475 | $0 |
| 2026-08-11 | KNUTSON PAUL L | VP, Human Resources | Buy | 250 | $0 |
| 2026-04-14 | LeBeau Michael E | Director | Buy | 1,500 | $0 |
| 2026-04-14 | WEBB THOMAS J | Director | Buy | 1,500 | $0 |
| 2026-04-14 | ERICKSON JOHN D | Director | Buy | 1,500 | $0 |
| 2026-04-14 | Rasche Steven P | Director | Buy | 1,900 | $0 |
| 2026-04-14 | Johnson Kathryn O | Director | Buy | 1,500 | $0 |
| 2026-04-14 | Clark Christopher B | Director | Buy | 1,900 | $0 |
| 2026-04-14 | PARTAIN NATHAN I | Director | Buy | 2,000 | $0 |
| 2026-04-14 | Crain Jeanne H | Director | Buy | 1,500 | $0 |
| 2026-04-14 | Ludford Mary E | Director | Buy | 1,500 | $0 |
| 2026-04-09 | Wahlund Todd R | Chief Financial Officer | Buy | 460 | $41,451 |
| 2026-04-09 | Wahlund Todd R | Chief Financial Officer | Sell | 186 | $16,760 |
| 2026-02-12 | Abbott John S | Sr VP, Manufacturing Platform | Sell | 4,209 | $363,784 |
| 2026-02-12 | ROGELSTAD TIMOTHY J | Sr VP, Electric Platform | Buy | 8,400 | $726,012 |
| 2026-02-12 | ROGELSTAD TIMOTHY J | Sr VP, Electric Platform | Sell | 4,212 | $364,043 |
| 2026-02-12 | MACFARLANE CHARLES S | President & CEO | Buy | 47,700 | $4.1M |
| 2026-02-12 | MACFARLANE CHARLES S | President & CEO | Sell | 23,515 | $2.0M |
| 2026-02-12 | Smestad Jennifer O. | VP, General Council & Corp Sec | Buy | 6,000 | $518,580 |
| 2026-02-12 | Smestad Jennifer O. | VP, General Council & Corp Sec | Sell | 3,031 | $261,969 |
| 2026-02-12 | Abbott John S | Sr VP, Manufacturing Platform | Buy | 8,400 | $726,012 |
Source: SEC Form 4 filings · as of 2026-08-12