Introduction

This page provides a comprehensive analysis of the known insider trading history of James Mandell. 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 James Mandell has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:BLUE / bluebird bio, Inc. Director 1,000
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by James Mandell. 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 James Mandell 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
2018-09-12 2018-09-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -67 1,000 -6.28 152.00 -10,184 152,002
2018-09-12 2018-09-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -501 1,067 -31.95 151.22 -75,762 161,353
2018-09-12 2018-09-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -432 1,568 -21.60 150.06 -64,825 235,291
2018-06-22 2018-06-20 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 4,000 4,000
2018-06-22 2018-06-20 4 BLUE bluebird bio, Inc.
Common Stock
A - Award 1,000 2,000 100.00
2017-08-15 2017-08-14 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale -1,000 1,000 -50.00 95.95 -95,950 95,950
2017-06-12 2017-06-08 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 4,000 4,000
2017-06-12 2017-06-08 4 BLUE bluebird bio, Inc.
Common Stock
A - Award 1,000 2,000 100.00
2017-02-17 2017-02-15 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 1,050 4,500 30.43
2017-02-17 2017-02-15 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -1,050 1,000 -51.22 80.22 -84,235 80,224
2017-02-17 2017-02-15 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 1,050 2,050 105.00 25.16 26,418 51,578
2017-02-16 2017-02-14 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 1,950 5,550 54.17
2017-02-16 2017-02-14 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 4,000 0 -100.00
2017-02-16 2017-02-14 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -5,950 1,000 -85.61 80.01 -476,076 80,013
2017-02-16 2017-02-14 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 1,950 6,950 39.00 25.16 49,062 174,862
2017-02-16 2017-02-14 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 4,000 5,000 400.00 21.43 85,720 107,150
2017-02-02 2017-01-31 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 8,000 4,000 -200.00
2017-02-02 2017-01-31 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -8,000 1,000 -88.89 75.04 -600,322 75,040
2017-02-02 2017-01-31 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 8,000 9,000 800.00 21.43 171,440 192,870
2017-01-31 2017-01-27 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 5,000 12,000 71.43
2017-01-31 2017-01-27 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -5,000 1,000 -83.33 70.10 -350,499 70,100
2017-01-31 2017-01-27 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 5,000 6,000 500.00 21.43 107,150 128,580
2016-06-03 2016-06-02 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 4,000 4,000
2016-06-03 2016-06-02 4 BLUE bluebird bio, Inc.
Common Stock
A - Award 1,000 1,000
2015-09-03 2015-09-01 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 1,500 17,000 9.68
2015-09-03 2015-09-01 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -143 0 -100.00 127.12 -18,179
2015-09-03 2015-09-01 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -715 143 -83.33 126.44 -90,402 18,080
2015-09-03 2015-09-01 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -642 858 -42.80 125.17 -80,357 107,392
2015-09-03 2015-09-01 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 1,500 1,500 21.43 32,145 32,145
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
M - Exercise 1,500 18,500 8.82
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -90 0 -100.00 152.86 -13,758
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -127 90 -58.53 151.71 -19,267 13,654
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -164 217 -43.04 150.28 -24,646 32,611
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -194 381 -33.74 148.75 -28,858 56,674
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -299 575 -34.21 147.88 -44,217 85,033
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
S - Sale X -626 874 -41.73 146.83 -91,916 128,330
2015-08-12 2015-08-10 4 BLUE bluebird bio, Inc.
Common Stock
M - Exercise 1,500 1,500 21.43 32,145 32,145
2015-06-08 2015-06-04 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 7,500 7,500
2014-06-12 2014-06-11 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 7,500 7,500
2014-01-10 2014-01-08 4 BLUE bluebird bio, Inc.
Stock Option (right to buy)
A - Award 20,000 20,000
2014-01-10 3 BLUE bluebird bio, Inc.
No securities are beneficially owned
0
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)