Introduction

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

Security Title Latest Reported Holdings
US:FFIV / F5, Inc. EVP, World Wide Sales 8,787
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Thomas David Feringa. 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 Thomas David Feringa 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
2015-08-04 2015-08-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -838 8,787 -8.71 131.87 -110,505 1,158,716
2015-08-04 2015-08-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -2,763 9,625 -22.30 131.02 -362,017 1,261,099
2015-08-04 2015-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -559 7,268 -7.14
2015-08-04 2015-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -757 6,818 -9.99
2015-08-04 2015-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 3,822 -16.66
2015-08-04 2015-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 7,500 -20.00
2015-08-04 2015-08-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,955 12,388 46.90
2015-08-03 2015-07-30 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 2,047 8,433 32.05
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -559 7,827 -6.67
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -758 7,575 -9.10
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 4,586 -14.28
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 9,375 -16.67
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,713 6,386 -21.15 123.39 -211,362 787,948
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,900 8,099 -19.00 122.66 -233,061 993,454
2015-05-05 2015-05-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,956 9,999 65.46
2015-04-30 2015-04-28 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 2,066 5,842 54.71
2015-02-02 2015-02-02 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -200 3,776 -5.03 112.79 -22,558 425,895
2015-02-02 2015-02-02 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -3,913 3,976 -49.60 112.00 -438,242 445,298
2015-02-02 2015-02-02 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,551 7,889 -16.43 111.11 -172,328 876,528
2015-02-02 2015-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -559 8,386 -6.25
2015-02-02 2015-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -757 8,333 -8.33
2015-02-02 2015-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 5,350 -12.50
2015-02-02 2015-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 11,250 -14.29
2015-02-02 2015-02-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,955 9,440 72.11
2015-02-02 2015-01-29 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 2,070 5,485 60.61
2014-11-04 2014-11-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,710 3,415 -33.37 124.93 -213,635 426,646
2014-11-04 2014-11-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -2,855 5,125 -35.78 124.16 -354,479 636,325
2014-11-04 2014-11-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -181 7,980 -2.22 122.45 -22,163 977,132
2014-11-04 2014-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -758 9,090 -7.70
2014-11-04 2014-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -765 6,114 -11.12
2014-11-04 2014-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 13,125 -12.50
2014-11-04 2014-11-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,398 8,161 71.34
2014-11-04 2014-10-31 4 FFIV F5 NETWORKS INC
Restricted Stock Units
A - Award 8,945 8,945
2014-11-04 2014-10-31 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 1,650 4,763 53.00
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -757 9,848 -7.14
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 6,879 -10.00
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 15,000 -11.11
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -300 3,113 -8.79 113.17 -33,950 352,288
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -4,444 3,413 -56.56 112.30 -499,074 383,289
2014-08-01 2014-08-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,396 7,857 76.13
2014-08-01 2014-07-30 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 1,651 4,461 58.75
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -758 10,605 -6.67
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 7,643 -9.09
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 16,875 -10.00
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -600 2,810 -17.60 107.03 -64,220 300,764
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -2,801 3,410 -45.10 106.69 -298,826 363,798
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,308 6,211 -17.40 105.08 -137,439 652,623
2014-05-05 2014-05-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,397 7,519 82.41
2014-05-01 2014-04-29 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 1,611 3,808 73.33
2014-02-05 2014-02-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -200 2,197 -8.34 106.07 -21,214 233,036
2014-02-05 2014-02-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,672 2,397 -41.09 105.30 -176,056 252,396
2014-02-05 2014-02-03 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -2,800 4,069 -40.76 104.57 -292,786 425,481
2014-02-03 2014-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -757 11,363 -6.25
2014-02-03 2014-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 8,407 -8.33
2014-02-03 2014-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 18,750 -9.09
2014-02-03 2014-02-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 3,396 6,869 97.78
2014-02-03 2014-01-30 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 1,573 3,473 82.79
2014-01-02 2013-12-30 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,580 1,900 -45.40 90.00 -142,200 171,000
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -1,875 20,625 -8.33
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -765 9,171 -7.70
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -142 3,480 -3.92 81.59 -11,586 283,941
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -300 3,622 -7.65 80.78 -24,233 292,573
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,138 3,922 -22.49 79.30 -90,249 311,032
2013-11-04 2013-11-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 2,640 5,060 109.09
2013-10-31 2013-10-29 4 FFIV F5 NETWORKS INC
Restricted Stock Units
A - Award 12,120 12,120
2013-10-31 2013-10-29 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 721 2,420 42.44
2013-08-12 2013-08-08 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -5,545 1,699 -76.55 90.00 -499,050 152,910
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -7,500 22,500 -25.00
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 9,936 -7.14
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -716 0 -100.00
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -1,300 7,244 -15.22 88.96 -115,648 644,426
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -3,241 8,544 -27.50 87.98 -285,143 751,701
2013-08-02 2013-08-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 8,980 11,785 320.14
2013-08-02 2013-07-31 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 674 2,805 31.63
2013-05-01 2013-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 10,700 -6.66
2013-05-01 2013-05-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -715 716 -49.97
2013-05-01 2013-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -100 2,131 -4.48 75.26 -7,526 160,381
2013-05-01 2013-05-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -905 2,231 -28.86 74.14 -67,098 165,409
2013-05-01 2013-05-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 1,479 3,136 89.26
2013-05-01 2013-04-29 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 658 1,657 65.87
2013-02-22 2013-02-20 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -700 708 -49.72 104.87 -73,410 74,249
2013-02-22 2013-02-20 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -700 1,408 -33.21 104.13 -72,891 146,615
2013-02-22 2013-02-20 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -130 2,108 -5.81 102.37 -13,308 215,796
2013-02-04 2013-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -764 11,464 -6.25
2013-02-04 2013-02-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -716 1,431 -33.35
2013-02-04 2013-02-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -100 2,238 -4.28 106.39 -10,639 238,101
2013-02-04 2013-02-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -473 2,338 -16.83 105.63 -49,963 246,961
2013-02-04 2013-02-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 1,480 2,811 111.19
2013-02-04 2013-01-31 4 FFIV F5 NETWORKS INC
Common Stock
A - Award 757 1,331 131.88
2012-11-09 2012-11-07 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -286 574 -33.26 90.00 -25,740 51,660
2012-11-02 2012-11-01 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -286 860 -24.96 82.32 -23,544 70,795
2012-11-01 2012-11-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -715 2,147 -24.98
2012-11-01 2012-11-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 715 1,146 165.89
2012-11-01 2012-10-30 4 FFIV F5 NETWORKS INC
Restricted Stock Units
A - Award 12,228 12,228
2012-08-17 2012-08-16 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -535 431 -55.38 103.79 -55,527 44,733
2012-08-17 2012-08-16 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -311 966 -24.35 102.52 -31,883 99,033
2012-08-17 2012-08-16 4 FFIV F5 NETWORKS INC
Common Stock
S - Sale -200 1,277 -13.54 100.30 -20,060 128,083
2012-08-03 2012-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -716 2,862 -20.01
2012-08-03 2012-08-01 4 FFIV F5 NETWORKS INC
Restricted Stock Units
M - Exercise -591 0 -100.00
2012-08-03 2012-08-01 4 FFIV F5 NETWORKS INC
Common Stock
M - Exercise 1,307 1,477 768.82
2012-05-31 2012-05-30 4 FFIV F5 NETWORKS INC
Restricted Stock Units
A - Award 30,000 30,000
2012-05-31 3 FFIV F5 NETWORKS INC
Common Stock
170
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)