Czeszewski David C. - Insider Trading Tracker

Introduction

This page provides a comprehensive analysis of the known insider trading history of Czeszewski David C.. 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

Companies with Reported Insider Positions

The SEC filings indicate Czeszewski David C. has reported holdings or trades in the following companies:

How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Czeszewski David C.. 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 PRDO / Perdoceo Education Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in PRDO / Perdoceo Education Corporation. 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.

Insider Sales PRDO / Perdoceo Education Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in PRDO / Perdoceo Education Corporation. 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 (%)
2025-06-13	PRDO	Czeszewski David C.	15,306	31.6600	15,306	31.6600	484,588	52	28.0800	-54,795	-11.31
2025-06-13	PRDO	Czeszewski David C.	14,932	31.6700	14,932	31.6700	472,896
2025-06-13	PRDO	Czeszewski David C.	654	31.5500	654	31.5500	20,634
2023-05-12	PRDO	Czeszewski David C.	11,570	11.8900	11,570	11.8900	137,567
2023-05-11	PRDO	Czeszewski David C.	11,671	12.0100	11,671	12.0100	140,169
2022-03-04	PRDO	Czeszewski David C.	17,029	10.6200	17,029	10.6200	180,848
2022-03-03	PRDO	Czeszewski David C.	16,320	10.6400	16,320	10.6400	173,645
2020-09-11	PRDO	Czeszewski David C.	52,213	12.5100	52,213	12.5100	653,185
2020-09-10	PRDO	Czeszewski David C.	17,505	12.4700	17,505	12.4700	218,287
2020-09-10	PRDO	Czeszewski David C.	3,202	12.6200	3,202	12.6200	40,409
2020-09-09	PRDO	Czeszewski David C.	16,824	12.9200	16,824	12.9200	217,366
2019-08-23	CECO	Czeszewski David C.	10,161	21.8200	10,161	21.8200	221,713
2019-08-22	CECO	Czeszewski David C.	4,498	22.3500	4,498	22.3500	100,530
2019-08-13	CECO	Czeszewski David C.	2,908	21.7500	2,908	21.7500	63,249
2019-08-12	CECO	Czeszewski David C.	15,278	21.3100	15,278	21.3100	325,574

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

Insider Trading History

This table shows the complete list of insider trades made by Czeszewski David C. as disclosed to the Securities Exchange Commission (SEC).