Zach Koff - Insider Trading Tracker

Introduction

This page provides a comprehensive analysis of the known insider trading history of Zach Koff. 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 Zach Koff 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 Zach Koff. 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 SHAK / Shake Shack Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in SHAK / Shake Shack 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.

Insider Sales SHAK / Shake Shack Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in SHAK / Shake Shack 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 (%)
2023-06-21	SHAK	Koff Zach	5,000	75.0000	5,000	75.0000	375,000	114	53.5200	-107,400	-28.64
2023-02-02	SHAK	Koff Zach	5,000	60.0000	5,000	60.0000	300,000
2022-10-28	SHAK	Koff Zach	3,900	55.0000	3,900	55.0000	214,500
2022-07-14	SHAK	Koff Zach	5,000	45.0000	5,000	45.0000	225,000
2021-01-12	SHAK	Koff Zach	1,460	95.0000	1,460	95.0000	138,700
2021-01-12	SHAK	Koff Zach	1,460	100.0000	1,460	100.0000	146,000
2021-01-08	SHAK	Koff Zach	1,460	90.0000	1,460	90.0000	131,400
2021-01-04	SHAK	Koff Zach	2,920	85.0000	2,920	85.0000	248,200
2020-12-10	SHAK	Koff Zach	700	84.8600	700	84.8600	59,402
2019-08-08	SHAK	Koff Zach	5,000	86.0000	5,000	86.0000	430,000
2019-08-07	SHAK	Koff Zach	15,000	88.0000	15,000	88.0000	1,320,000
2019-06-10	SHAK	Koff Zach	5,000	64.5000	5,000	64.5000	322,500
2019-03-01	SHAK	Koff Zach	5,000	55.0000	5,000	55.0000	275,000
2019-03-01	SHAK	Koff Zach	2,500	54.0000	2,500	54.0000	135,000
2019-03-01	SHAK	Koff Zach	2,500	53.0000	2,500	53.0000	132,500
2018-06-01	SHAK	Koff Zach	5,000	60.0000	5,000	60.0000	300,000
2018-05-08	SHAK	Koff Zach	3,000	59.0000	3,000	59.0000	177,000
2018-03-02	SHAK	Koff Zach	3,000	40.9800	3,000	40.9800	122,940
2017-11-09	SHAK	Koff Zach	5,000	37.0000	5,000	37.0000	185,000
2017-05-18	SHAK	Koff Zach	5,000	38.0000	5,000	38.0000	190,000
2017-03-08	SHAK	Koff Zach	2,000	31.9610	2,000	31.9610	63,922

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 Zach Koff as disclosed to the Securities Exchange Commission (SEC).