Matthew Field - Insider Trading Tracker

Introduction

This page provides a comprehensive analysis of the known insider trading history of Matthew Field. 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 Matthew Field 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 Matthew Field. 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 JOBY / Joby Aviation, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in JOBY / Joby Aviation, 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 JOBY / Joby Aviation, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in JOBY / Joby Aviation, 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 (%)
2024-10-04	JOBY	Field Matthew	11,764	5.7800	11,764	5.7800	67,996	27	4.8000	-11,528	-16.95
2024-10-02	JOBY	Field Matthew	13,651	5.7900	13,651	5.7900	79,039
2024-07-05	JOBY	Field Matthew	11,766	5.1700	11,766	5.1700	60,830
2024-07-02	JOBY	Field Matthew	12,513	4.9600	12,513	4.9600	62,064
2024-04-18	JOBY	Field Matthew	4,572	4.6400	4,572	4.6400	21,214
2024-04-04	JOBY	Field Matthew	8,285	5.0000	8,285	5.0000	41,425
2024-04-03	JOBY	Field Matthew	5,026	4.9600	5,026	4.9600	24,929
2024-04-03	JOBY	Field Matthew	2,338	4.9600	2,338	4.9600	11,596
2024-04-03	JOBY	Field Matthew	4,715	4.9600	4,715	4.9600	23,386
2024-03-13	JOBY	Field Matthew	4,613	5.4200	4,613	5.4200	25,002
2024-02-14	JOBY	Field Matthew	4,830	6.0300	4,830	6.0300	29,125
2024-01-18	JOBY	Field Matthew	1,338	5.5900	1,338	5.5900	7,479
2024-01-18	JOBY	Field Matthew	328	5.5900	328	5.5900	1,834
2024-01-18	JOBY	Field Matthew	353	5.5900	353	5.5900	1,973
2024-01-18	JOBY	Field Matthew	540	5.5900	540	5.5900	3,019
2024-01-18	JOBY	Field Matthew	2,034	5.5900	2,034	5.5900	11,370
2024-01-04	JOBY	Field Matthew	8,584	6.0100	8,584	6.0100	51,590
2024-01-03	JOBY	Field Matthew	5,942	6.1300	5,942	6.1300	36,424
2024-01-03	JOBY	Field Matthew	2,764	6.1300	2,764	6.1300	16,943
2023-10-04	JOBY	Field Matthew	11,507	6.1800	11,507	6.1800	71,113
2023-10-03	JOBY	Field Matthew	6,961	6.1600	6,961	6.1600	42,880
2023-10-03	JOBY	Field Matthew	3,237	6.1600	3,237	6.1600	19,940
2023-07-07	JOBY	Field Matthew	15,769	9.5000	15,769	9.5000	149,806
2023-04-05	JOBY	Field Matthew	8,068	4.2100	8,068	4.2100	33,966
2023-04-04	JOBY	Field Matthew	4,878	4.1700	4,878	4.1700	20,341
2023-01-12	JOBY	Field Matthew	40,363	3.6900	40,363	3.6900	148,939
2023-01-04	JOBY	Field Matthew	9,478	3.4400	9,478	3.4400	32,604
2022-10-04	JOBY	Field Matthew	11,515	4.4500	11,515	4.4500	51,242
2022-10-03	JOBY	Field Matthew	13,449	4.2500	13,449	4.2500	57,158

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 Matthew Field as disclosed to the Securities Exchange Commission (SEC).