NWPX Infrastructure, Inc.
US ˙ NasdaqGS ˙ US6677461013

Introduction

This page provides a comprehensive analysis of the known insider trading history of Keith R Larson. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Keith R Larson has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:NWPX / NWPX Infrastructure, Inc. Director 21,484
US:ROG / Rogers Corporation Director 1,900
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Keith R Larson. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases NWPX / NWPX Infrastructure, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in NWPX / NWPX Infrastructure, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

NWPX / NWPX Infrastructure, Inc. Insider Trades
Insider Sales NWPX / NWPX Infrastructure, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in NWPX / NWPX Infrastructure, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

NWPX / NWPX Infrastructure, Inc. Insider Trades
Insider Purchases ROG / Rogers Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in NWPX / NWPX Infrastructure, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

ROG / Rogers Corporation Insider Trades
Insider Sales ROG / Rogers Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in NWPX / NWPX Infrastructure, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

ROG / Rogers Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Keith R Larson as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-06-16 2025-06-12 4 NWPX NWPX Infrastructure, Inc.
Common Stock
A - Award 2,166 21,484 11.21 39.23 84,972 842,817
2024-06-17 2024-06-13 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,404 19,318 14.21 33.27 79,981 642,710
2023-06-26 2023-06-22 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,537 16,914 17.65 29.56 74,994 499,978
2022-06-17 2022-06-16 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,276 14,377 18.81 30.75 69,987 442,093
2022-05-06 2022-05-05 4 ROG ROGERS CORP
Capital (Common) Stock
A - Award 600 1,900 46.15
2021-12-07 2021-12-06 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -313 12,101 -2.52 28.98 -9,071 350,691
2021-11-30 2021-11-29 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 12,414 -7.45 29.62 -29,624 367,750
2021-11-24 2021-11-22 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 13,414 -6.94 30.90 -30,897 414,451
2021-11-18 2021-11-15 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 14,414 -6.49 29.24 -29,241 421,486
2021-08-04 2021-08-02 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 15,414 -6.09 28.08 -28,079 432,814
2021-07-28 2021-07-26 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 16,414 -5.74 28.73 -28,728 471,533
2021-07-21 2021-07-19 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 17,414 -5.43 27.24 -27,236 474,296
2021-07-08 2021-07-06 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 18,414 -5.15 27.95 -27,949 514,647
2021-06-30 2021-06-28 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 19,414 -4.90 28.99 -28,986 562,736
2021-06-23 2021-06-21 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 20,414 -4.67 28.76 -28,761 587,123
2021-06-16 2021-06-14 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 21,414 -4.46 30.08 -30,084 644,210
2021-06-14 2021-06-10 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,101 22,414 10.34 30.94 65,005 693,489
2021-06-08 2021-06-07 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 20,313 -4.69 31.77 -31,769 645,328
2021-06-02 2021-06-01 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 21,313 -4.48 31.57 -31,574 672,947
2021-05-26 2021-05-24 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,500 22,313 -6.30 33.74 -50,610 752,841
2021-05-19 2021-05-17 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,000 23,813 -4.03 31.73 -31,730 755,586
2021-05-12 2021-05-10 4 NWPX NORTHWEST PIPE CO
Common Stock
S - Sale X -1,500 24,813 -5.70 32.00 -48,007 794,133
2021-05-07 2021-05-05 4 ROG ROGERS CORP
Capital (Common) Stock
A - Award 800 1,300 160.00
2020-12-04 2020-12-02 4 ROG ROGERS CORP
Capital (Common) Stock
A - Award 500 500
2020-12-03 3 ROG ROGERS CORP
Capital (Common) Stock
0
2020-06-08 2020-06-04 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,563 26,313 10.79 25.37 65,023 667,561
2019-06-24 2019-06-20 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,443 23,750 11.47 24.56 60,000 583,300
2018-06-08 2018-06-06 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,793 21,307 15.09 21.48 59,994 457,674
2017-06-05 2017-06-01 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 3,736 18,514 25.28 14.72 54,994 272,526
2017-06-05 2017-06-01 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 3,736 18,514 25.28 14.72 54,994 272,526
2016-06-03 2016-06-02 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 5,741 14,778 63.53 9.58 54,999 141,573
2015-06-08 2015-06-04 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 2,616 9,037 40.74 21.02 54,988 189,958
2014-06-02 2014-05-29 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 1,528 6,421 31.23 36.00 55,008 231,156
2013-06-04 2013-05-31 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 818 4,893 20.07 27.49 22,487 134,509
2012-06-18 2012-06-14 4 NWPX NORTHWEST PIPE CO
Common Stock
A - Award 961 4,075 30.86 23.40 22,487 95,355
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)