Introduction

This page provides a comprehensive analysis of the known insider trading history of James C Klauer. 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 James C Klauer has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:COST / Costco Wholesale Corporation Executive Vice President 43,994
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by James C Klauer. 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 Trading History

This table shows the complete list of insider trades made by James C Klauer 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
2025-04-21 2025-04-17 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -4,000 43,994 -8.33 981.07 -3,924,280 43,160,825
2025-04-21 2023-07-20 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
W - Other 98 98
2024-10-24 2024-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -177 47,994 -0.37 893.49 -157,842 42,881,823
2024-10-24 2024-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -198 48,170 -0.41 893.49 -177,169 43,039,665
2024-10-24 2024-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -191 48,369 -0.39 893.49 -170,727 43,216,835
2024-10-24 2024-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -240 48,560 -0.49 893.49 -214,393 43,387,562
2024-10-24 2024-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -291 48,800 -0.59 893.49 -260,206 43,601,955
2024-09-18 2024-09-16 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,610 49,091 -3.18 907.87 -1,462,050 44,568,086
2024-09-18 2024-09-16 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 6,737 50,701 15.32
2024-02-22 2024-01-12 4/A COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 96 43,964 0.22
2024-01-12 2024-01-12 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 60 43,928 0.14
2023-10-24 2023-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -188 43,868 -0.43 552.93 -103,785 24,255,992
2023-10-24 2023-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -236 44,056 -0.53 552.93 -130,329 24,359,777
2023-10-24 2023-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -286 44,292 -0.64 552.93 -158,397 24,490,106
2023-10-24 2023-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -360 44,578 -0.80 552.93 -199,302 24,648,503
2023-10-24 2023-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -195 44,938 -0.43 552.93 -107,919 24,847,805
2023-10-12 2023-10-11 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -1,500 45,134 -3.22 562.01 -843,017 25,365,600
2023-09-19 2023-09-15 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,679 46,634 -3.48 556.36 -934,349 25,945,072
2023-09-19 2023-09-15 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 7,429 48,313 18.17
2023-01-31 2023-01-27 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -2,500 40,884 -5.76 503.69 -1,259,225 20,592,862
2022-10-25 2022-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -188 43,384 -0.43 478.18 -89,898 20,745,361
2022-10-25 2022-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -236 43,572 -0.54 478.18 -112,850 20,835,259
2022-10-25 2022-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -287 43,808 -0.65 478.18 -137,238 20,948,109
2022-10-25 2022-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -362 44,095 -0.81 478.18 -173,101 21,085,347
2022-10-25 2022-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -255 44,457 -0.57 478.18 -121,936 21,258,448
2022-10-11 2022-09-12 4/A COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 7,154 44,712 19.05
2022-09-14 2022-09-12 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,600 42,329 -3.64 539.52 -863,232 22,837,342
2022-09-14 2022-09-12 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 4,771 43,929 12.18
2021-10-26 2021-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,417 39,158 -3.49 481.99 -682,980 18,873,764
2021-10-26 2021-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,435 40,575 -3.42 481.99 -691,656 19,556,744
2021-10-26 2021-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,445 42,010 -3.33 481.99 -696,476 20,248,400
2021-10-26 2021-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -764 43,455 -1.73 481.99 -368,240 20,944,875
2021-10-26 2021-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -551 44,219 -1.23 481.99 -265,576 21,313,116
2021-10-26 2021-09-28 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
G - Gift -15,000 44,770 -25.10
2021-09-16 2021-09-14 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -855 59,770 -1.41 458.41 -391,941 27,399,166
2021-09-16 2021-09-14 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 8,998 60,625 17.43
2021-06-14 2021-06-14 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -5,000 51,627 -8.83 380.53 -1,902,650 19,645,622
2020-12-11 2020-12-11 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 288 56,627 0.51
2020-10-23 2020-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -563 56,339 -0.99 375.75 -211,547 21,169,379
2020-10-23 2020-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -709 56,902 -1.23 375.75 -266,407 21,380,926
2020-10-23 2020-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -500 57,611 -0.86 375.75 -187,875 21,647,333
2020-10-23 2020-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -540 58,111 -0.92 375.75 -202,905 21,835,208
2020-10-23 2020-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -509 58,651 -0.86 375.75 -191,257 22,038,113
2020-09-15 2020-09-14 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -972 59,160 -1.62 342.92 -333,318 20,287,147
2020-09-15 2020-09-14 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 10,730 60,132 21.72
2020-08-07 2020-08-07 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -4,000 49,402 -7.49 342.72 -1,370,880 16,931,058
2019-10-24 2019-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -709 53,402 -1.31 299.97 -212,679 16,018,998
2019-10-24 2019-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -500 54,111 -0.92 299.97 -149,985 16,231,677
2019-10-24 2019-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -540 54,611 -0.98 299.97 -161,984 16,381,662
2019-10-24 2019-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -509 55,151 -0.91 299.97 -152,685 16,543,645
2019-10-24 2019-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -599 55,660 -1.06 299.97 -179,682 16,696,330
2019-09-20 2019-09-18 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -1,261 56,259 -2.19 292.43 -368,754 16,451,819
2019-09-20 2019-09-18 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
A - Award 13,510 57,520 30.70
2019-06-10 2019-06-07 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -4,300 44,010 -8.90 255.49 -1,098,610 11,244,141
2019-06-10 2019-06-07 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
S - Sale -700 48,310 -1.43 255.80 -179,059 12,357,645
2018-11-14 3/A COST COSTCO WHOLESALE CORP /NEW
Common Stock
30,833
2018-10-24 2018-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -500 28,715 -1.71 229.06 -114,530 6,577,458
2018-10-24 2018-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -536 29,215 -1.80 229.06 -122,776 6,691,988
2018-10-24 2018-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -315 29,751 -1.05 229.06 -72,154 6,814,764
2018-10-24 2018-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -371 30,066 -1.22 229.06 -84,981 6,886,918
2018-10-24 2018-10-22 4 COST COSTCO WHOLESALE CORP /NEW
Common Stock
F - Taxes -371 30,066 -1.22 229.06 -84,981 6,886,918
2018-03-08 3 COST COSTCO WHOLESALE CORP /NEW
Common Stock
61,616
2018-03-08 3 COST COSTCO WHOLESALE CORP /NEW
Common Stock
61,616
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)