Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 State or other jurisdict ...

Northwest Pipe Company (NASDAQ:NWPX) Q4 2020 Earnings Conference Call March 4, 2021 10:00 AM ET Company Representatives Scott Montross - President, Chief Executive Officer Aaron Wilkins - Chief Financial Officer Conference Call Participants Brent Thielman - D.A. Davidson Gus Richard - Northland Mike Morales - Walthausen & Company Operator Good morning and welcome to the Northwest Pipe Company, Fourth Quarter 2020 Earnings Conference Call. All participants will be in listen-only mode. [Operator Instructions] ...

Northwest Pipe Company (NASDAQ:NWPX) Q3 2020 Earnings Conference Call November 5, 2020 10:00 AM ET Company Participants Scott Montross – President and Chief Executive Officer Aaron Wilkins – Chief Financial Officer Conference Call Participants Brent Thielman – D.A. Davidson Gus Richard – Northland David Wright – Henry Investment Trust Operator Good morning and welcome to the Northwest Pipe Company's Third Quarter 2020 Earnings Call. All participants will be in listen-only mode. [Operator Instructions] Pleas ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: September 30, 2020 201 NE Park Plaza Drive, Suite 100 Vancouver, Washington 98684 (Address of principal executive offices and Zip Code) NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (I.R.S. Emplo ...

1 2020 Investor Presentation August 2020 ② Northwest Pipe Company Forward-Looking Statements Statements in this presentation are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities Exchange Act of 1934, as amended, that are based on current expectations, estimates, and projections about the Company's business, management's beliefs, and assumptions made by management. These statements are not guarantees of future performanc ...

Northwest Pipe Company (NASDAQ:NWPX) Q2 2020 Earnings Conference Call August 5, 2020 10:00 AM ET Company Participants Aaron Wilkins - SVP, CFO and Corporate Secretary Scott J. Montross - President and CEO Conference Call Participants Brent Thielman - D.A. Davidson & Co. Auguste Richard - Northland Capital Markets David Wright - Henry Investment Trust Thomas Spiro - Spiro Capital Management Operator Good morning and welcome to the Northwest Pipe Company's Second Quarter 2020 Earnings Conference Call. All par ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) Oregon 93-0557988 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identi ...

Northwest Pipe Company (NASDAQ:NWPX) Q1 2020 Earnings Conference Call May 8, 2020 10:00 AM ET Company Participants Scott Montross - President and Chief Executive Officer Aaron Wilkins - Chief Financial Officer Conference Call Participants Zane Karimi - D.A. Davidson & Co. Gus Richard - Northland Capital Markets David Wright - Henry Investment Trust, L.P. Operator Good morning and welcome to Northwest Pipe Company’s First Quarter 2020 Earnings Conference Call. All participants will be in a listen-only mode. ...

For the quarterly period ended: March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) (State or other jurisdiction of incor ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-27140 NORTHWEST PIPE COMPANY (Exact name of registrant as specified in its charter) OREGON 93-0557988 State or other jurisdict ...