13 insiders reported 153 Form 4 transactions for NORTHWEST PIPE CO (NWPX) over the past 18 months (most recent 2026-08-18). Recent activity: MONTROSS SCOTT J (President & CEO) Sell 2,500 shares, LARSON KEITH R (Director) Sell 1,250 shares, MONTROSS SCOTT J (President & CEO) Sell 2,500 shares, Wilkins Aaron (CFO) Sell 428 shares, MONTROSS SCOTT J (President & CEO) Sell 2,500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | MONTROSS SCOTT J | President & CEO | Sell | 2,500 | $287,818 |
| 2026-08-18 | LARSON KEITH R | Director | Sell | 1,250 | $144,829 |
| 2026-08-11 | MONTROSS SCOTT J | President & CEO | Sell | 2,500 | $296,848 |
| 2026-08-11 | Wilkins Aaron | CFO | Sell | 428 | $51,360 |
| 2026-08-05 | MONTROSS SCOTT J | President & CEO | Sell | 2,500 | $321,546 |
| 2026-06-15 | Lockridge Irma | Director | Buy | 899 | $109,957 |
| 2026-06-12 | LARSON KEITH R | Director | Buy | 899 | $109,957 |
| 2026-06-12 | ROMAN RICHARD A | Director | Buy | 899 | $109,957 |
| 2026-06-12 | FRANSON MICHAEL C | Director | Buy | 899 | $109,957 |
| 2026-06-12 | Paschal John | Director | Buy | 899 | $109,957 |
| 2026-06-12 | Julian Amanda | Director | Buy | 899 | $109,957 |
| 2026-04-02 | Tanguis Jesus | SVP/GM Precast Infrastructure | Buy | 1,242 | $0 |
| 2026-04-02 | Brittain Miles | Executive Vice President | Buy | 3,758 | $0 |
| 2026-04-02 | Wray Michael | Executive Vice President | Buy | 3,221 | $0 |
| 2026-04-02 | Kendrick Megan A. | Sr. VP of Human Resources | Buy | 2,225 | $0 |
| 2026-04-02 | Stokes Eric | SVP and Group President of WTS | Buy | 3,373 | $0 |
| 2026-04-02 | MONTROSS SCOTT J | President & CEO | Buy | 10,069 | $0 |
| 2026-04-02 | Wilkins Aaron | CFO | Buy | 3,758 | $0 |
| 2026-04-02 | Wray Michael | Executive Vice President | Sell | 1,267 | $98,649 |
| 2026-04-02 | Tanguis Jesus | SVP/GM Precast Infrastructure | Sell | 358 | $27,874 |
| 2026-04-02 | Stokes Eric | SVP and Group President of WTS | Sell | 1,327 | $103,320 |
| 2026-04-02 | Kendrick Megan A. | Sr. VP of Human Resources | Sell | 875 | $68,128 |
| 2026-04-02 | MONTROSS SCOTT J | President & CEO | Sell | 3,962 | $308,481 |
| 2026-04-02 | Brittain Miles | Executive Vice President | Sell | 1,478 | $115,077 |
| 2026-04-02 | Wilkins Aaron | CFO | Sell | 1,478 | $115,077 |
Source: SEC Form 4 filings · as of 2026-08-18