Insider Trading Overview, one sample t-test

Latest rejected null hypothesis t-test is for insider Lopez George A , latest action by insider was BUY on 2022-05-12 for symbol ICUI.

The overview represents results for last seven days for insider trading. The traders were tested with one-tailed statistical test. The test validate the distribution area for one value, the value is greater or less than the certain value. Testing the null hypothesis that the trading activities mean is equal to a specified value μ0 with following expression: t = (x-μ0)/(s/√n)

x
sample mean
s
sample standard deviation
n
sample size

The overview we do one tailed tests. The goal is to identify if insider trading had statistical significance. If the inside tradings have statistical significance, then it could be mean, that the insider information advantage.

Example:

Person A BUY and SELL shares of one Company.
If A BUY a SHARE and in the following days the share price goes almost every time up.
If A SELL a SHARE and in the following days the share price goes almost every time down.
The hypothesis is then following: every time, when A do an action (BUY or SELL) then it has no significant influence on the expected value. Person A trades randomly and has no advantage information about the future price development.
Accept: Inside trader tradings are random
Reject: The tradings are are statistical significance Trader get positive trading for his actions.

CIK Name Last trading symbol Last trading date Last action t 1day p 1day T-Test # t 7day p 7day T-Test # t 14day p 14day T-Test # t 30day pp 30day T-Test #
1334940 Kehoe Michael P KNSL 2022-05-13 SALE -1.07 0.30 Accept 16 -1.79 0.09 Accept 16 -1.41 0.18 Accept 15 -1.38 0.19 Accept 15
1233415 Greenfield Gary G DBD 2022-05-12 BUY 1.12 0.38 Accept 3 1.15 0.37 Accept 3 2.00 0.18 Accept 3 1.48 0.23 Accept 4
1664542 Costello Ellen DBD 2022-05-12 BUY -0.38 0.72 Accept 6 -0.05 0.97 Accept 6 -0.49 0.64 Accept 7 -1.19 0.28 Accept 7
1215177 Rutherford Jeffrey L DBD 2022-05-12 BUY -0.30 0.82 Accept 2 -0.35 0.78 Accept 2 -0.62 0.65 Accept 2 -1.19 0.44 Accept 2
1669639 Sanzone Virginia Ruth ICUI 2022-05-12 SALE -0.20 0.85 Accept 4 -0.71 0.53 Accept 4 -1.19 0.32 Accept 4 0.01 0.99 Accept 4
1731363 Van Dyk Robert CLBK 2022-05-12 BUY -11.21 0.01 Accept 3 -1.62 0.20 Accept 4 -0.34 0.76 Accept 4 0.20 0.85 Accept 4
1551778 Malik Fady Ibraham CYTK 2022-05-12 SALE 1.15 0.26 Accept 26 0.39 0.70 Accept 26 -0.98 0.34 Accept 27 -0.59 0.56 Accept 27
1421897 Mastercard Foundation MA 2022-05-13 SALE 0.52 0.60 Accept 162 -0.90 0.37 Accept 159 -2.21 0.03 Accept 159 -2.81 0.01 Accept 159
1073397 Lopez George A ICUI 2022-05-12 BUY 1.83 0.09 Reject 17 2.15 0.05 Reject 17 2.81 0.01 Reject 17 5.07 0.00 Reject 17
1268406 Burke James A VST 2022-05-12 BUY 1.97 0.09 Reject 8 1.94 0.09 Reject 8 1.71 0.13 Accept 8 2.70 0.03 Reject 9
1785451 Elaine Johnson Martin RICK 2022-05-12 BUY -1.00 0.36 Accept 6 0.82 0.45 Accept 6 1.37 0.23 Accept 6 0.09 0.93 Accept 5
1536310 Gottesfeld Stephen P NEM 2022-05-12 SALE -0.16 0.87 Accept 47 -0.46 0.65 Accept 47 0.28 0.78 Accept 47 -0.15 0.88 Accept 47
1435005 Army Joseph VAPO 2022-05-12 BUY 0.25 0.83 Accept 3 0.83 0.50 Accept 3 0.84 0.49 Accept 3 -0.24 0.83 Accept 3
1221359 Rady Ernest S AAT 2022-05-12 BUY 0.62 0.54 Accept 117 0.09 0.93 Accept 114 0.49 0.62 Accept 109 0.43 0.67 Accept 108
1786925 Prince Matthew NET 2022-05-12 SALE -1.43 0.16 Accept 72 -2.94 0.00 Accept 72 -1.66 0.10 Accept 72 -3.12 0.00 Accept 72
1576905 Blumofe Robert AKAM 2022-05-13 SALE 0.66 0.52 Accept 22 -0.16 0.87 Accept 22 -0.13 0.89 Accept 22 -0.24 0.81 Accept 22
1610257 Young Donald R ASPN 2022-05-12 BUY -0.95 0.39 Accept 6 -1.49 0.20 Accept 6 -2.42 0.06 Accept 6 0.69 0.52 Accept 7
1617955 Gonzalez Jorge Luis JOE 2022-05-12 BUY 0.16 0.88 Accept 4 0.00 1.00 Accept 3 1.28 0.29 Accept 4 1.90 0.13 Accept 5
1798674 Bf Bank Partners Lp BANF 2022-05-12 SALE -0.12 0.91 Accept 10 -0.77 0.46 Accept 10 -1.81 0.10 Accept 10 -0.24 0.81 Accept 10
1798119 Main Street Banking Partners Lp BANF 2022-05-12 SALE 0.51 0.63 Accept 8 -0.79 0.46 Accept 8 -1.73 0.13 Accept 8 -0.42 0.69 Accept 8
1042873 Rainbolt David E BANF 2022-05-12 SALE 1.76 0.11 Accept 11 0.60 0.56 Accept 11 -0.85 0.41 Accept 11 0.61 0.55 Accept 11
898544 Payson Norman PGNY 2022-05-12 SALE -0.83 0.41 Accept 177 -2.03 0.04 Accept 177 -2.45 0.02 Accept 175 -3.92 0.00 Accept 174
1348459 Hamer Andrew VLDR 2022-05-12 SALE 0.70 0.50 Accept 13 1.45 0.17 Accept 13 2.20 0.05 Reject 13 3.54 0.00 Reject 12
1644638 Peterson Stacy WING 2022-05-12 SALE 1.77 0.22 Accept 3 1.10 0.39 Accept 3 0.47 0.68 Accept 3 0.20 0.86 Accept 3
1768052 Bacon Renee M MUSA 2022-05-12 SALE 3.23 0.19 Accept 2 120.49 0.01 Reject 2 1.23 0.44 Accept 2 1.81 0.32 Accept 2
1834247 Mcbeath Kathryn VLDR 2022-05-12 SALE 1.84 0.11 Accept 8 0.52 0.62 Accept 8 1.65 0.14 Accept 8 2.86 0.03 Reject 7
1851727 Vass Sinclair VLDR 2022-05-12 SALE 2.20 0.11 Accept 4 -1.00 0.39 Accept 4 0.40 0.72 Accept 4 1.59 0.21 Accept 4
1428804 Denaples Louis A Jr FNCB 2022-05-12 BUY 2.72 0.22 Accept 2 -3.34 0.19 Accept 2 0.82 0.56 Accept 2 1.69 0.34 Accept 2
1816502 Farner Jay RKT 2022-05-12 BUY -2.18 0.04 Accept 29 -4.76 0.00 Accept 27 -2.04 0.05 Accept 22 -3.28 0.01 Accept 11
1734406 Barnhart James VLDR 2022-05-12 SALE 1.75 0.33 Accept 2 10.36 0.06 Reject 2 3.20 0.19 Accept 2 0.00 0.00 0
1825551 Rekow Mathew VLDR 2022-05-12 SALE 1.06 0.31 Accept 14 1.97 0.07 Reject 14 3.21 0.01 Reject 14 3.81 0.00 Reject 13
1910024 Ramsey Randall C. ARTW 2022-05-13 BUY -4.87 0.00 Accept 7 -13.92 0.00 Accept 4 0.00 0.00 0 0.00 0.00 0
1877053 Garcia Ken V TMST 2022-05-12 BUY 2.10 0.28 Accept 2 4.42 0.14 Accept 2 -10.69 0.06 Accept 2 -1.75 0.33 Accept 2