Introduction

This page provides a comprehensive analysis of the known insider trading history of Robert Coffman. 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

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Robert Coffman has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:DVAX / Dynavax Technologies Corporation Senior Vice President 77,768
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Robert Coffman. 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 Trading History

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

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2019-06-04 2019-06-04 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale -32,218 77,768 -29.29 4.58 -147,687 356,489
2019-06-04 2019-06-04 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -22,484 109,986 -16.97 4.58 -103,067 504,176
2019-06-04 2019-06-02 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock unit
M - Exercise -54,702 0 -100.00
2019-06-04 2019-06-02 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 54,702 132,470 70.34
2019-03-01 2019-02-28 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale -8,500 77,768 -9.85 9.03 -76,755 702,245
2019-03-01 2019-02-28 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale -54,702 86,268 -38.80 9.03 -493,959 779,000
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
A - Award 22,000 22,000
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option (Right to Buy)
A - Award 88,000 88,000
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
M - Exercise -8,500 8,500 -50.00
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
M - Exercise -54,702 0 -100.00
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 8,500 140,970 6.42
2019-02-22 2019-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 54,702 132,470 70.34
2018-06-08 2018-06-08 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -27,520 77,768 -26.14 15.52 -427,110 1,206,959
2018-06-04 2018-06-02 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock unit
M - Exercise -54,703 54,702 -50.00
2018-06-04 2018-06-02 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 54,703 105,288 108.14
2018-03-22 2018-03-21 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option (Right to Buy)
A - Award 150,000 150,000
2018-03-22 2018-02-01 4/A DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option (Right to Buy)
A - Award 100,000 100,000
2018-03-14 2018-03-12 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -2,319 50,585 -4.38 16.72 -38,774 845,781
2018-03-14 2018-03-12 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -3,091 52,904 -5.52 16.72 -51,682 884,555
2018-03-14 2018-03-12 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -19,891 55,955 -26.23 16.72 -332,578 935,568
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
M - Exercise -6,375 0 -100.00
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
M - Exercise -8,500 17,000 -33.33
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
M - Exercise -54,703 54,702 -50.00
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 6,375 75,886 9.17
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 8,500 69,511 13.93
2018-02-23 2018-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 54,703 61,011 867.20
2018-02-05 2018-02-01 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option (Right to Buy)
A - Award 100,000 100,000
2017-12-15 2017-12-13 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option (Right to Buy)
M - Exercise -7,500 0 -100.00
2017-12-15 2017-12-13 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale -7,500 6,308 -54.32 18.90 -141,750 119,221
2017-12-15 2017-12-13 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 7,500 13,808 118.90 5.40 40,500 74,563
2017-06-02 2017-06-02 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Units
A - Award 109,405 109,405
2017-02-24 2017-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Units
A - Award 25,500 25,500
2017-02-24 2017-02-22 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Units
A - Award 109,405 109,405
2016-02-08 2016-02-04 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award 84,000 84,000
2016-02-08 2016-02-04 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
A - Award 21,000 21,000
2015-08-31 2015-08-27 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award 16,501 16,501
2015-02-11 2015-02-09 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award 75,000 185,001 68.18
2014-02-06 2014-02-04 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Unit
A - Award 25,000 25,000
2013-02-07 2013-02-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award -180,000 180,000 -50.00
2012-12-19 2012-12-18 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option
M - Exercise -19,926 0 -100.00
2012-12-19 2012-12-18 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -10,451 47,467 -18.04 2.86 -29,890 135,756
2012-12-19 2012-12-18 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise 19,926 57,918 52.45 1.50 29,889 86,877
2012-11-07 2012-11-06 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option
M - Exercise -8,000 0 -100.00
2012-11-07 2012-11-06 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale X -8,000 19,926 -28.65 4.31 -34,480 85,881
2012-11-07 2012-11-06 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option
M - Exercise 8,000 27,926 40.15 1.50 12,000 41,889
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option
M - Exercise -2,251 0 -100.00
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale X -3,333 37,992 -8.07 4.96 -16,532 188,440
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale X -3,111 0 -100.00 4.96 -15,431
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale X -1,556 41,325 -3.63 4.86 -7,562 200,840
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
F - Taxes -695 42,881 -1.59 4.86 -3,378 208,402
2012-10-09 2012-10-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Stock Option
M - Exercise 2,251 43,576 5.45 1.50 3,376 65,364
2012-09-14 2012-09-13 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
S - Sale X -8,000 3,111 -72.00 4.52 -36,160 14,062
2012-09-06 2012-09-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise -8,000 25,325 -24.01 4.11 -32,880 104,086
2012-09-06 2012-09-05 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise X -8,000 33,325 -19.36 4.06 -32,480 135,300
2012-06-21 2012-06-20 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
M - Exercise X -8,000 41,325 -16.22 4.13 -33,014 170,540
2012-05-03 2012-05-01 4 DVAX DYNAVAX TECHNOLOGIES CORP
Common Stock
D - Sale to Issuer X -18,000 49,325 -26.74 5.08 -91,519 250,788
2012-03-12 2012-03-09 4 DVAX DYNAVAX TECHNOLOGIES CORP
Restricted Stock Units
A - Award 100,000 100,000
2012-02-02 2012-01-31 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award 180,000 180,000
2009-03-12 2009-03-10 4 DVAX DYNAVAX TECHNOLOGIES CORP
Option (Right to Buy)
A - Award 75,000 75,000
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)