The Gorman-Rupp Company
US ˙ NYSE ˙ US3830821043

Introduction

This page provides a comprehensive analysis of the known insider trading history of Christopher H Lake. 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.

See Highest Ranking Insiders
Companies with Reported Insider Positions

The SEC filings indicate Christopher H Lake has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:GRC / The Gorman-Rupp Company Director 42,601
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Christopher H Lake. 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 GRC / The Gorman-Rupp Company - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in GRC / The Gorman-Rupp Company. 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.

GRC / The Gorman-Rupp Company Insider Trades
Insider Sales GRC / The Gorman-Rupp Company - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in GRC / The Gorman-Rupp Company. 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 (%)
2021-08-05 GRC LAKE CHRISTOPHER H 200 34.7700 200 34.7700 6,954 341 27.0700 -1,540 -22.15
2021-08-05 GRC LAKE CHRISTOPHER H 500 35.0100 500 35.0100 17,505
2021-08-05 GRC LAKE CHRISTOPHER H 1,000 34.9200 1,000 34.9200 34,920
2021-05-13 GRC LAKE CHRISTOPHER H 500 34.7000 500 34.7000 17,350
2020-11-09 GRC LAKE CHRISTOPHER H 500 35.4300 500 35.4300 17,715
2020-11-09 GRC LAKE CHRISTOPHER H 1,000 35.5500 1,000 35.5500 35,550
2020-08-05 GRC LAKE CHRISTOPHER H 500 31.5500 500 31.5500 15,775
2020-03-05 GRC LAKE CHRISTOPHER H 3,000 32.5300 3,000 32.5300 97,590
2019-10-31 GRC LAKE CHRISTOPHER H 500 36.4700 500 36.4700 18,235
2019-10-31 GRC LAKE CHRISTOPHER H 1,000 36.4400 1,000 36.4400 36,440
2019-10-31 GRC LAKE CHRISTOPHER H 500 36.4800 500 36.4800 18,240
2019-05-03 GRC LAKE CHRISTOPHER H 1,000 32.9300 1,000 32.9300 32,930
2019-05-03 GRC LAKE CHRISTOPHER H 1,500 33.0800 1,500 33.0800 49,620
2019-03-07 GRC LAKE CHRISTOPHER H 2,000 33.0700 2,000 33.0700 66,140
2018-08-17 GRC LAKE CHRISTOPHER H 2,000 36.6900 2,000 36.6900 73,380
2018-05-11 GRC LAKE CHRISTOPHER H 1,500 33.2400 1,500 33.2400 49,860
2018-02-27 GRC LAKE CHRISTOPHER H 500 27.8300 500 27.8300 13,915
2017-11-03 GRC LAKE CHRISTOPHER H 1,500 31.7560 1,500 31.7560 47,634
2017-11-03 GRC LAKE CHRISTOPHER H 1,000 31.7510 1,000 31.7510 31,751
2017-08-18 GRC LAKE CHRISTOPHER H 1,000 27.2000 1,000 27.2000 27,200
2017-08-18 GRC LAKE CHRISTOPHER H 1,200 27.2500 1,200 27.2500 32,700
2017-03-14 GRC LAKE CHRISTOPHER H 1,500 30.4300 1,500 30.4300 45,645
2017-03-14 GRC LAKE CHRISTOPHER H 1,000 30.2700 1,000 30.2700 30,270
2016-11-09 GRC LAKE CHRISTOPHER H 1,000 26.5100 1,000 26.5100 26,510
2016-11-09 GRC LAKE CHRISTOPHER H 1,000 26.3800 1,000 26.3800 26,380
2016-05-06 GRC LAKE CHRISTOPHER H 3,000 27.8100 3,000 27.8100 83,430
2015-10-28 GRC LAKE CHRISTOPHER H 2,000 28.0650 2,000 28.0650 56,130
2015-05-13 GRC LAKE CHRISTOPHER H 500 27.0500 500 27.0500 13,525
2015-05-13 GRC LAKE CHRISTOPHER H 500 27.0930 500 27.0930 13,546
2014-03-18 GRC LAKE CHRISTOPHER H 400 32.0110 400 32.0110 12,804
2014-03-18 GRC LAKE CHRISTOPHER H 1,400 32.0110 1,400 32.0110 44,815
2013-04-02 GRC LAKE CHRISTOPHER H 400 29.1100 400 29.1100 11,644
2013-04-02 GRC LAKE CHRISTOPHER H 700 29.1100 700 29.1100 20,377
2012-05-11 GRC LAKE CHRISTOPHER H 400 29.0400 400 29.0400 11,616
2012-05-11 GRC LAKE CHRISTOPHER H 500 29.0400 500 29.0400 14,520

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

GRC / The Gorman-Rupp Company Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Christopher H Lake 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
2025-04-25 2025-04-25 4 GRC GORMAN RUPP CO
Common Stock 		A - Award 2,553 42,601 6.37
2024-05-09 2024-05-08 4 GRC GORMAN RUPP CO
Common Stock 		A - Award 2,759 40,048 7.40
2024-02-14 2023-08-14 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 900 0 -100.00
2024-02-14 2023-08-14 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 900 0 -100.00
2023-07-05 2023-07-03 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 2,250 36,389 6.59
2022-07-01 2022-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 2,250 34,139 7.06
2022-02-14 2021-10-15 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,020 23,561 4.53
2022-02-14 2021-08-19 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 433 31,889 1.38
2021-08-05 2021-08-05 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 22,541 -4.25 34.92 -34,920 787,132
2021-08-05 2021-08-05 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 23,541 -2.08 35.01 -17,505 824,170
2021-08-05 2021-08-05 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -200 24,041 -0.83 34.77 -6,954 835,906
2021-07-01 2021-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,500 31,456 5.01
2021-05-14 2021-05-13 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 24,241 -2.02 34.70 -17,350 841,163
2021-02-16 2020-11-12 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,200 24,741 5.10
2021-02-16 2020-11-12 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 300 29,956 1.01
2020-11-09 2020-11-09 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 23,541 -4.07 35.55 -35,550 836,883
2020-11-09 2020-11-09 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 24,541 -2.00 35.43 -17,715 869,488
2020-08-06 2020-08-05 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 25,041 -1.96 31.55 -15,775 790,044
2020-07-06 2020-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,500 29,656 5.33 30.72 46,080 911,032
2020-03-06 2020-03-05 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -3,000 25,541 -10.51 32.53 -97,590 830,849
2020-02-12 2019-09-26 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,740 28,541 6.49
2020-02-12 2019-09-26 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 435 28,156 1.57
2019-11-01 2019-10-31 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 26,801 -1.83 36.48 -18,240 977,700
2019-11-01 2019-10-31 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 27,301 -3.53 36.44 -36,440 994,848
2019-11-01 2019-10-31 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 28,301 -1.74 36.47 -18,235 1,032,137
2019-07-02 2019-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,500 27,721 5.72 32.82 49,230 909,803
2019-05-03 2019-05-03 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,500 28,801 -4.95 33.08 -49,620 952,737
2019-05-03 2019-05-03 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 30,301 -3.19 32.93 -32,930 997,812
2019-03-07 2019-03-07 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -2,000 31,301 -6.01 33.07 -66,140 1,035,124
2019-02-08 2018-12-04 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,371 33,301 4.29
2019-02-08 2018-10-02 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 418 26,221 1.62
2018-08-17 2018-08-17 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -2,000 31,930 -5.89 36.69 -73,380 1,171,512
2018-07-03 2018-07-02 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,500 25,803 6.17 34.55 51,825 891,494
2018-05-14 2018-05-11 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,500 33,930 -4.23 33.24 -49,860 1,127,833
2018-02-27 2018-02-27 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 35,430 -1.39 27.83 -13,915 986,017
2018-02-09 2017-11-22 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 426 24,303 1.78
2018-02-09 2017-11-14 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 878 35,930 2.50
2017-11-07 2017-11-03 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 35,052 -2.77 31.75 -31,751 1,112,936
2017-11-07 2017-11-03 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,500 36,052 -3.99 31.76 -47,634 1,144,867
2017-08-18 2017-08-18 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,200 37,552 -3.10 27.25 -32,700 1,023,292
2017-08-18 2017-08-18 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 38,752 -2.52 27.20 -27,200 1,054,054
2017-07-05 2017-07-03 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,250 23,877 5.52 25.59 31,988 611,012
2017-03-15 2017-03-14 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 39,752 -2.45 30.27 -30,270 1,203,293
2017-03-15 2017-03-14 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,500 40,752 -3.55 30.43 -45,645 1,240,083
2017-02-08 2016-02-12 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 720 22,627 3.29
2016-11-10 2016-11-09 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 42,252 -2.31 26.38 -26,380 1,114,608
2016-11-10 2016-11-09 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,000 43,252 -2.26 26.51 -26,510 1,146,611
2016-07-06 2016-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,250 21,907 6.05 27.41 34,262 600,471
2016-05-09 2016-05-06 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -3,000 44,252 -6.35 27.81 -83,430 1,230,648
2015-10-29 2015-10-28 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -2,000 47,252 -4.06 28.06 -56,130 1,326,127
2015-07-06 2015-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,250 20,657 6.44 28.36 35,444 585,729
2015-05-15 2015-05-13 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 49,252 -1.00 27.09 -13,546 1,334,384
2015-05-15 2015-05-13 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 19,407 -2.51 27.05 -13,525 524,959
2015-05-15 2015-03-12 4 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,771 19,907 9.77
2015-02-17 2014-09-29 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,800 49,752 3.75
2015-02-17 2014-09-29 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 450 18,136 2.54
2014-07-03 2014-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,250 17,686 7.61 35.53 44,412 628,384
2014-03-19 2014-03-18 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -1,400 47,952 -2.84 32.01 -44,815 1,534,991
2014-03-19 2014-03-18 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -400 16,436 -2.38 32.01 -12,804 526,133
2014-02-14 2013-12-10 5 GRC GORMAN RUPP CO
Common Stock 		J - Other 9,869 49,352 25.00
2014-02-14 2013-12-10 5 GRC GORMAN RUPP CO
Common Stock 		J - Other 3,366 16,836 24.99
2014-02-14 2013-11-21 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,400 39,483 3.68
2014-02-14 2013-11-21 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 350 13,470 2.67
2014-02-14 2013-09-27 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift -1,478 38,083 -3.74
2013-07-08 2013-07-01 4 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,000 13,120 8.25 31.97 31,970 419,446
2013-04-04 2013-04-02 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -700 39,561 -1.74 29.11 -20,377 1,151,621
2013-04-04 2013-04-02 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -400 12,120 -3.19 29.11 -11,644 352,813
2013-02-14 2012-07-02 5 GRC GORMAN RUPP CO
Common Stock 		J - Other 1,000 12,520 8.68 29.75 29,750 372,470
2013-02-14 2012-03-19 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 2,150 40,261 5.64
2013-02-14 2012-03-19 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 860 11,920 7.78
2012-05-14 2012-05-11 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -500 38,111 -1.29 29.04 -14,520 1,106,743
2012-05-14 2012-05-11 4 GRC GORMAN RUPP CO
Common Stock 		S - Sale -400 10,660 -3.62 29.04 -11,616 309,566
2012-02-14 2011-06-10 5 GRC GORMAN RUPP CO
Common Stock 		J - Other 425 38,611 1.11 30.91 13,135 1,193,304
2012-02-14 2011-06-10 5 GRC GORMAN RUPP CO
Common Stock 		J - Other 171 11,060 1.57
2012-02-14 2011-03-29 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 1,710 38,186 4.69
2012-02-14 2011-03-29 5 GRC GORMAN RUPP CO
Common Stock 		G - Gift 684 10,889 6.70
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)