Introduction

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

Security Title Latest Reported Holdings
US:CERN / Cerner Corp. Former EVP & CC&S Officer 8,967
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by John Peterzalek. 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 John Peterzalek 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
2021-01-15 2020-12-31 5 CERN CERNER Corp
Common Stock
J - Other 236 8,967 2.70 74.23 17,518 665,620
2020-12-03 2020-12-01 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -100 29,852 -0.33
2020-12-03 2020-12-01 4 CERN CERNER Corp
Common Stock
S - Sale -100 16,107 -0.62 76.00 -7,600 1,224,132
2020-12-03 2020-12-01 4 CERN CERNER Corp
Common Stock
X - Other 100 16,207 0.62 67.24 6,724 1,089,759
2020-11-17 2020-11-16 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -1,100 29,952 -3.54
2020-11-17 2020-11-16 4 CERN CERNER Corp
Common Stock
S - Sale -1,100 16,107 -6.39 76.04 -83,644 1,224,776
2020-11-17 2020-11-16 4 CERN CERNER Corp
Common Stock
X - Other 1,100 17,207 6.83 67.24 73,964 1,156,999
2020-11-17 2020-11-13 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -15,000 32,800 -31.38
2020-11-17 2020-11-13 4 CERN CERNER Corp
Common Stock
S - Sale -15,000 16,107 -48.22 75.19 -1,127,850 1,211,085
2020-11-17 2020-11-13 4 CERN CERNER Corp
Common Stock
X - Other 15,000 31,107 93.13 65.27 979,050 2,030,354
2020-11-12 2020-11-11 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -1,907 47,800 -3.84
2020-11-12 2020-11-11 4 CERN CERNER Corp
Common Stock
S - Sale -1,907 16,107 -10.59 75.09 -143,197 1,209,475
2020-11-12 2020-11-11 4 CERN CERNER Corp
Common Stock
X - Other 1,907 18,014 11.84 65.27 124,470 1,175,774
2020-11-12 2020-11-10 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -4,512 49,707 -8.32
2020-11-12 2020-11-10 4 CERN CERNER Corp
Common Stock
S - Sale -4,512 16,107 -21.88 75.01 -338,445 1,208,186
2020-11-12 2020-11-10 4 CERN CERNER Corp
Common Stock
X - Other 4,512 20,619 28.01 65.27 294,498 1,345,802
2020-11-12 2020-11-09 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -27,781 54,219 -33.88
2020-11-12 2020-11-09 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -18,948 31,052 -37.90
2020-11-12 2020-11-09 4 CERN CERNER Corp
Common Stock
S - Sale -46,729 16,107 -74.37 76.19 -3,560,283 1,227,192
2020-11-12 2020-11-09 4 CERN CERNER Corp
Common Stock
X - Other 27,781 62,836 79.25 65.27 1,813,266 4,101,306
2020-11-12 2020-11-09 4 CERN CERNER Corp
Common Stock
X - Other 18,948 35,055 117.64 67.24 1,274,064 2,357,098
2020-09-09 2020-09-07 4 CERN CERNER Corp
Restricted Stock Units
M - Exercise -15,569 15,570 -50.00
2020-09-09 2020-09-07 4 CERN CERNER Corp
Common Stock
F - Taxes -6,967 16,107 -30.19 70.04 -487,969 1,128,134
2020-09-09 2020-09-07 4 CERN CERNER Corp
Common Stock
M - Exercise 15,569 23,074 207.45
2020-05-29 2020-05-28 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -24,498 36,749 -40.00
2020-05-29 2020-05-28 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -16,400 16,400 -50.00
2020-05-29 2020-05-28 4 CERN CERNER Corp
Common Stock
S - Sale -53,177 7,505 -87.63 70.89 -3,769,718 532,029
2020-05-29 2020-05-28 4 CERN CERNER Corp
Common Stock
X - Other 24,498 60,682 67.70 57.24 1,402,266 3,473,438
2020-05-29 2020-05-28 4 CERN CERNER Corp
Common Stock
X - Other 16,400 36,184 82.90 55.24 905,936 1,998,804
2020-05-01 2020-04-30 4 CERN CERNER Corp
Restricted Stock Units
A - Award 28,823 28,823
2020-05-01 2020-04-29 4 CERN CERNER Corp
Restricted Stock Units
M - Exercise -7,514 15,029 -33.33
2020-05-01 2020-04-29 4 CERN CERNER Corp
Common Stock
F - Taxes -2,235 19,784 -10.15 71.01 -158,707 1,404,862
2020-05-01 2020-04-29 4 CERN CERNER Corp
Common Stock
M - Exercise 7,514 22,019 51.80
2020-03-20 2020-03-19 4 CERN CERNER Corp
Restricted Stock Units
A - Award 7,514 7,514
2020-01-17 2019-12-28 5 CERN CERNER Corp
Common Stock
J - Other 178 8,731 2.08 59.87 10,657 522,725
2019-12-17 2019-12-14 4 CERN CERNER Corp
Restricted Stock Units
M - Exercise -26,251 0 -100.00
2019-12-17 2019-12-14 4 CERN CERNER Corp
Common Stock
F - Taxes -11,747 14,505 -44.75 72.67 -853,654 1,054,078
2019-12-17 2019-12-14 4 CERN CERNER Corp
Common Stock
M - Exercise 26,251 26,252 2,625,100.00
2019-11-20 2019-11-19 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -1,164 32,800 -3.43
2019-11-20 2019-11-19 4 CERN CERNER Corp
Common Stock
S - Sale -5,075 1 -99.98 68.06 -345,404 68
2019-11-20 2019-11-19 4 CERN CERNER Corp
Common Stock
X - Other 1,164 5,076 29.75 55.24 64,299 280,398
2019-11-20 2019-11-18 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -19,290 33,964 -36.22
2019-11-20 2019-11-18 4 CERN CERNER Corp
Common Stock
S - Sale -24,590 3,912 -86.27 68.24 -1,678,022 266,955
2019-11-20 2019-11-18 4 CERN CERNER Corp
Common Stock
X - Other 19,290 28,502 209.40 55.24 1,065,580 1,574,450
2019-09-16 2019-09-13 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -28,746 53,254 -35.06
2019-09-16 2019-09-13 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -27 0 -100.00
2019-09-16 2019-09-13 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -13,994 0 -100.00
2019-09-16 2019-09-13 4 CERN CERNER Corp
Common Stock
S - Sale -42,767 9,212 -82.28 68.33 -2,922,269 629,456
2019-09-16 2019-09-13 4 CERN CERNER Corp
Common Stock
X - Other 28,746 51,979 123.73 55.24 1,587,929 2,871,320
2019-09-16 2019-09-13 4 CERN CERNER Corp
Common Stock
X - Other 27 23,233 0.12 59.94 1,618 1,392,586
2019-09-16 2019-09-13 4 CERN CERNER Corp
Common Stock
X - Other 13,994 23,206 151.91 50.04 700,260 1,161,228
2019-08-23 2019-08-22 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -6,406 13,994 -31.40
2019-08-23 2019-08-22 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -4,687 0 -100.00
2019-08-23 2019-08-22 4 CERN CERNER Corp
Common Stock
S - Sale -15,922 9,212 -63.35 72.17 -1,149,091 664,830
2019-08-23 2019-08-22 4 CERN CERNER Corp
Common Stock
X - Other 6,406 25,134 34.21 50.04 320,556 1,257,705
2019-08-23 2019-08-22 4 CERN CERNER Corp
Common Stock
X - Other 4,687 18,728 33.38 48.39 226,804 906,248
2019-08-23 2019-08-21 4 CERN CERNER Corp
Non-Qualified Stock Option (right to buy)
X - Other -7,313 4,687 -60.94
2019-08-23 2019-08-21 4 CERN CERNER Corp
Common Stock
S - Sale -11,562 14,041 -45.16 72.02 -832,695 1,011,233
2019-08-23 2019-08-21 4 CERN CERNER Corp
Common Stock
X - Other 7,313 25,603 39.98 48.39 353,876 1,238,929
2019-04-30 2019-04-29 4 CERN CERNER CORP /MO/
Restricted Stock Units
A - Award 22,543 22,543
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
45,133
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
35,396
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
45,133
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
35,396
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
45,133
2018-09-17 3 CERN CERNER CORP /MO/
Common Stock
35,396
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)