David B Roberts - Insider Trading Tracker

Introduction

This page provides a comprehensive analysis of the known insider trading history of David B Roberts. 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 David B Roberts 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 David B Roberts. 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 LMAT / LeMaitre Vascular, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in LMAT / LeMaitre Vascular, 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 (%)
2020-08-14	LMAT	Roberts David B	7,074	28.3450	7,074	28.3450	200,513	315	63.33	247,484	123.43

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

Insider Sales LMAT / LeMaitre Vascular, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in LMAT / LeMaitre Vascular, 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 (%)
2025-08-11	LMAT	Roberts David B	3,718	92.5337	3,718	92.5337	344,040	32	92.2900	-906	-0.26
2025-08-11	LMAT	Roberts David B	384	91.5484	384	91.5484	35,155
2025-08-11	LMAT	Roberts David B	6,713	92.3549	6,713	92.3549	619,978
2024-08-13	LMAT	Roberts David B	3,063	82.0700	3,063	82.0700	251,380
2024-05-06	LMAT	Roberts David B	5,025	75.6200	5,025	75.6200	379,990
2023-05-04	LMAT	Roberts David B	9,664	63.8423	9,664	63.8423	616,972
2023-05-04	LMAT	Roberts David B	14,961	63.0958	14,961	63.0958	943,976
2023-05-04	LMAT	Roberts David B	1,665	62.1571	1,665	62.1571	103,492
2023-05-04	LMAT	Roberts David B	3,899	64.9736	3,899	64.9736	253,332
2023-05-04	LMAT	Roberts David B	4,800	62.9236	4,800	62.9236	302,033
2023-02-27	LMAT	Roberts David B	905	51.3100	905	51.3100	46,436
2023-02-27	LMAT	Roberts David B	1,700	50.2700	1,700	50.2700	85,459
2023-02-27	LMAT	Roberts David B	11,503	49.3900	11,503	49.3900	568,133
2021-11-03	LMAT	Roberts David B	19,712	52.2391	19,712	52.2391	1,029,737
2021-05-03	LMAT	Roberts David B	18,600	51.2924	18,600	51.2924	954,039
2021-03-09	LMAT	Roberts David B	22,193	47.6285	22,193	47.6285	1,057,019
2021-03-01	LMAT	Roberts David B	7,074	52.0542	7,074	52.0542	368,231
2019-11-27	LMAT	Roberts David B	6,906	35.8163	6,906	35.8163	247,347
2019-10-28	LMAT	Roberts David B	12,202	35.2915	12,202	35.2915	430,627
2018-08-02	LMAT	Roberts David B	21,005	35.7202	21,005	35.7202	750,303
2017-11-06	LMAT	Roberts David B	4,123	32.1436	4,123	32.1436	132,528
2017-08-30	LMAT	Roberts David B	26,683	36.6705	26,683	36.6705	978,479
2017-08-04	LMAT	Roberts David B	48,317	33.1205	48,317	33.1205	1,600,283
2017-05-11	LMAT	Roberts David B	39,531	30.3731	39,531	30.3731	1,200,679
2017-05-04	LMAT	Roberts David B	22,980	31.2013	22,980	31.2013	717,006
2017-05-03	LMAT	Roberts David B	21,360	31.0672	21,360	31.0672	663,595
2017-03-10	LMAT	Roberts David B	5,900	22.4373	5,900	22.4373	132,380
2016-11-17	LMAT	Roberts David B	20,000	24.6445	20,000	24.6445	492,890
2016-09-07	LMAT	Roberts David B	10,000	20.7678	10,000	20.7678	207,678
2016-09-06	LMAT	Roberts David B	10,000	19.3624	10,000	19.3624	193,624
2016-08-24	LMAT	Roberts David B	5,000	17.2809	5,000	17.2809	86,404
2016-08-23	LMAT	Roberts David B	5,000	17.4245	5,000	17.4245	87,122
2016-08-05	LMAT	Roberts David B	200	17.4600	200	17.4600	3,492
2016-08-04	LMAT	Roberts David B	500	17.6061	500	17.6061	8,803
2016-08-03	LMAT	Roberts David B	9,300	17.6384	9,300	17.6384	164,037
2016-05-06	LMAT	Roberts David B	17,064	15.8860	17,064	15.8860	271,079
2015-11-25	LMAT	Roberts David B	5,000	15.9775	5,000	15.9775	79,888
2015-11-23	LMAT	Roberts David B	5,000	15.9329	5,000	15.9329	79,664
2015-11-20	LMAT	Roberts David B	5,000	15.3116	5,000	15.3116	76,558
2015-11-18	LMAT	Roberts David B	5,000	14.1397	5,000	14.1397	70,698
2015-08-20	LMAT	Roberts David B	12,000	13.5822	12,000	13.5822	162,986
2015-07-31	LMAT	Roberts David B	32,000	13.2369	32,000	13.2369	423,581
2015-06-05	LMAT	Roberts David B	15,000	11.1742	15,000	11.1742	167,613
2015-05-11	LMAT	Roberts David B	10,000	10.5553	10,000	10.5553	105,553
2015-05-07	LMAT	Roberts David B	5,000	9.8097	5,000	9.8097	49,048
2015-05-06	LMAT	Roberts David B	3,000	9.7230	3,000	9.7230	29,169
2015-05-04	LMAT	Roberts David B	8,000	9.1000	8,000	9.1000	72,800
2014-12-09	LMAT	Roberts David B	3,000	7.3647	3,000	7.3647	22,094
2014-10-31	LMAT	Roberts David B	3,500	7.0294	3,500	7.0294	24,603
2014-05-07	LMAT	Roberts David B	3,000	7.9500	3,000	7.9500	23,850
2013-11-01	LMAT	Roberts David B	2,000	7.9620	2,000	7.9620	15,924
2013-09-03	LMAT	Roberts David B	6,500	6.9045	6,500	6.9045	44,879
2012-09-06	LMAT	Roberts David B	100	5.9000	100	5.9000	590
2012-09-05	LMAT	Roberts David B	1,513	5.9000	1,513	5.9000	8,927
2012-09-04	LMAT	Roberts David B	2,800	6.0500	2,800	6.0500	16,940
2012-08-31	LMAT	Roberts David B	7,600	6.0000	7,600	6.0000	45,600
2012-08-29	LMAT	Roberts David B	15,403	6.1500	15,403	6.1500	94,728

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 David B Roberts as disclosed to the Securities Exchange Commission (SEC).