Introduction

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

Security Title Latest Reported Holdings
US:CMA / Comerica Incorporated Executive Vice President 37,810
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Michael T Ritchie. 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 Michael T Ritchie 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
2025-02-24 2025-02-20 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -2,253 37,810 -5.62 67.01 -150,974 2,533,648
2025-02-24 2025-02-20 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 5,028 40,063 14.35
2025-01-30 2025-01-28 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 3,840 35,035 12.31
2025-01-30 2025-01-28 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -234 31,195 -0.74 63.53 -14,866 1,981,818
2025-01-28 2025-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -546 31,429 -1.71 63.27 -34,545 1,988,513
2025-01-28 2025-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -198 31,975 -0.62 63.27 -12,527 2,023,058
2025-01-28 2025-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -305 32,173 -0.94 63.27 -19,297 2,035,586
2024-02-28 2024-02-26 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -3,858 36,976 -9.45 48.97 -188,926 1,810,715
2024-02-28 2024-02-26 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 8,610 40,834 26.72
2024-01-29 2024-01-26 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -536 32,224 -1.64 54.92 -29,437 1,769,742
2024-01-26 2024-01-25 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -394 32,760 -1.19 54.97 -21,658 1,800,817
2024-01-25 2024-01-23 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 3,390 33,154 11.39 53.96 182,924 1,788,990
2024-01-24 2024-01-22 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -177 29,764 -0.59 53.67 -9,500 1,597,434
2023-07-31 3 CMA COMERICA INC /NEW/
Common Stock
29,941
2023-07-31 3 CMA COMERICA INC /NEW/
Common Stock
554
2018-03-01 2018-02-27 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -2,800 18,884 -12.91 98.61 -276,108 1,862,151
2018-03-01 2018-02-27 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 6,248 21,684 40.48
2018-02-28 2018-02-27 4 CMA COMERICA INC /NEW/
Common Stock
G - Gift -1,000 15,436 -6.08
2018-02-28 2018-02-26 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -4,000 16,436 -19.57 99.45 -397,808 1,634,593
2018-01-30 2018-01-27 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -311 20,436 -1.50 95.81 -29,797 1,957,973
2018-01-25 2018-01-23 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
A - Award 1,715 1,715
2018-01-25 2018-01-23 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 1,370 20,747 7.07
2018-01-23 2018-01-21 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -127 19,377 -0.65 94.99 -12,064 1,840,621
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -1,066 3,199 -24.99
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -1,530 1,530 -50.00
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -2,000 0 -100.00
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -1,066 19,500 -5.18 75.07 -80,025 1,463,865
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 1,066 20,566 5.47 32.97 35,146 678,061
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -1,530 19,500 -7.28 75.10 -114,895 1,464,352
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 1,530 21,030 7.85 42.32 64,750 889,990
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -2,000 19,500 -9.30 75.08 -150,170 1,464,158
2017-11-14 2017-11-10 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 2,000 21,500 10.26 33.79 67,580 726,485
2017-05-02 2017-04-28 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -2,500 19,493 -11.37 70.86 -177,152 1,381,293
2017-03-02 2017-02-28 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -2,359 21,990 -9.69 71.28 -168,150 1,567,447
2017-03-02 2017-02-28 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 5,104 24,349 26.52
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -10,800 0 -100.00
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -400 19,245 -2.04 67.76 -27,104 1,304,041
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -300 19,645 -1.50 67.75 -20,325 1,330,949
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -200 19,945 -0.99 67.74 -13,548 1,351,074
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -432 20,145 -2.10 67.73 -29,259 1,364,421
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -953 20,577 -4.43 67.71 -64,528 1,393,269
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -800 21,530 -3.58 67.70 -54,160 1,457,581
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -348 22,330 -1.53 67.69 -23,556 1,511,518
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -747 22,678 -3.19 67.68 -50,557 1,534,847
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -6,620 23,425 -22.03 67.67 -447,975 1,585,170
2017-02-02 2017-01-31 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 10,800 30,045 56.12 39.10 422,280 1,174,760
2017-01-26 2017-01-24 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
A - Award 2,210 2,210
2017-01-26 2017-01-24 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 970 19,245 5.31
2017-01-26 2017-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -734 18,275 -3.86 67.66 -49,662 1,236,486
2017-01-24 2017-01-21 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -262 19,009 -1.36 66.96 -17,544 1,272,843
2016-11-25 2016-11-23 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -114 19,268 -0.59 62.05 -7,074 1,195,656
2016-11-25 2016-11-22 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -4,000 0 -100.00
2016-11-25 2016-11-22 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -3,886 19,382 -16.70 61.55 -239,183 1,192,962
2016-11-25 2016-11-22 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 4,000 23,268 20.76 58.98 235,920 1,372,347
2016-11-03 2016-11-02 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -2,362 19,268 -10.92 50.90 -120,226 980,741
2016-11-01 2016-10-31 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -8,000 0 -100.00
2016-11-01 2016-10-31 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -5,638 21,630 -20.68 52.09 -293,683 1,126,707
2016-11-01 2016-10-31 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 8,000 27,268 41.52 29.60 236,800 807,133
2016-03-07 2016-03-03 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -1,707 19,252 -8.14 37.21 -63,517 716,367
2016-02-25 2016-02-23 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 810 20,959 4.02
2016-01-28 2016-01-26 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
A - Award 4,265 4,265
2016-01-28 2016-01-26 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 1,935 20,149 10.62
2016-01-27 2016-01-25 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -462 18,214 -2.47 32.04 -14,802 583,577
2016-01-26 2016-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -554 18,676 -2.88 33.67 -18,653 628,821
2015-11-18 2015-11-16 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -632 19,226 -3.18 45.53 -28,775 875,360
2015-02-26 2015-02-24 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 810 19,845 4.26
2015-01-29 2015-01-27 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
A - Award 3,060 3,060
2015-01-29 2015-01-27 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 1,240 19,035 6.97
2015-01-27 2015-01-25 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -386 17,795 -2.12 41.87 -16,162 745,077
2015-01-27 2015-01-24 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -1,055 18,181 -5.48 41.87 -44,173 761,238
2014-08-08 2014-08-07 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -1,873 19,228 -8.88 49.30 -92,339 947,940
2014-08-08 2014-08-06 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -12,000 0 -100.00
2014-08-08 2014-08-06 4 CMA COMERICA INC /NEW/
Common Stock
J - Other -10,127 21,101 -32.43 49.15 -497,742 1,037,114
2014-08-08 2014-08-06 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 12,000 31,228 62.41 34.78 417,360 1,086,110
2014-03-05 2014-03-04 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -602 19,221 -3.04 48.46 -29,176 931,546
2014-03-05 2014-03-03 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -4,150 0 -100.00
2014-03-05 2014-03-03 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -3,548 19,873 -15.15 47.54 -168,672 944,762
2014-03-05 2014-03-03 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 4,150 23,371 21.59 37.45 155,418 875,244
2014-02-27 2014-02-25 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 810 19,221 4.40
2014-01-28 2014-01-27 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -231 18,411 -1.24 46.57 -10,758 857,400
2014-01-28 2014-01-25 4 CMA COMERICA INC /NEW/
Common Stock
F - Taxes -905 18,642 -4.63 47.23 -42,743 880,462
2014-01-23 2014-01-21 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
A - Award 2,592 2,592
2014-01-23 2014-01-21 4 CMA COMERICA INC /NEW/
Common Stock
A - Award 1,014 19,547 5.47
2013-11-22 2013-11-20 4 CMA COMERICA INC /NEW/
Employee Stock Option (right to buy)
M - Exercise -3,750 0 -100.00
2013-11-22 2013-11-20 4 CMA COMERICA INC /NEW/
Common Stock
S - Sale -3,750 18,530 -16.83 44.85 -168,188 831,070
2013-11-22 2013-11-20 4 CMA COMERICA INC /NEW/
Common Stock
M - Exercise 3,750 22,280 20.24 17.32 64,950 385,890
2013-05-01 3 CMA COMERICA INC /NEW/
Common Stock
18,522
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)