Sean D Keohane - Insider Trading Tracker

Introduction

This page provides a comprehensive analysis of the known insider trading history of Sean D Keohane. 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 Sean D Keohane 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 Sean D Keohane. 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 CBT / Cabot Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CBT / Cabot 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 CBT / Cabot Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CBT / Cabot 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 (%)
2025-08-14	CBT	Keohane Sean D	80,304	79.2420	80,304	79.2420	6,363,450	1	78.1500	-87,691	-1.38
2025-08-14	CBT	Keohane Sean D	7,677	79.6178	7,677	79.6178	611,226
2025-08-14	CBT	Keohane Sean D	24,086	79.2487	24,086	79.2487	1,908,784
2025-08-14	CBT	Keohane Sean D	2,369	79.6262	2,369	79.6262	188,634
2024-09-03	CBT	Keohane Sean D	17,865	101.2321	17,865	101.2321	1,808,511
2024-09-03	CBT	Keohane Sean D	7,752	102.2777	7,752	102.2777	792,857
2024-03-01	CBT	Keohane Sean D	11,278	85.2907	11,278	85.2907	961,909
2024-03-01	CBT	Keohane Sean D	6,579	85.6749	6,579	85.6749	563,655
2022-05-24	CBT	Keohane Sean D	3,340	68.2600	3,340	68.2600	227,988
2022-05-24	CBT	Keohane Sean D	10,018	69.3700	10,018	69.3700	694,949
2022-05-24	CBT	Keohane Sean D	939	69.9500	939	69.9500	65,683
2018-06-05	CBT	Keohane Sean D	21,067	62.9900	21,067	62.9900	1,327,010
2018-06-05	CBT	Keohane Sean D	15,909	62.9900	15,909	62.9900	1,002,108
2018-06-05	CBT	Keohane Sean D	22,561	62.9900	22,561	62.9900	1,421,117
2014-06-06	CBT	Keohane Sean D	25,200	59.3263	25,200	59.3263	1,495,023
2013-12-05	CBT	Keohane Sean D	25,000	48.7441	25,000	48.7441	1,218,602
2013-09-19	CBT	Keohane Sean D	25,000	42.5564	25,000	42.5564	1,063,910
2012-03-19	CBT	Keohane Sean D	60,000	43.2500	60,000	43.2500	2,595,000

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

Insider Purchases CC / The Chemours Company - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CBT / Cabot 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 CC / The Chemours Company - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CBT / Cabot 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 (%)
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 Trading History

This table shows the complete list of insider trades made by Sean D Keohane as disclosed to the Securities Exchange Commission (SEC).