West Bancorporation, Inc.
US ˙ NasdaqGS ˙ US95123P1066

Introduction

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

Security Title Latest Reported Holdings
US:VRSK / Verisk Analytics, Inc. Director 22,261
Director 20,892
US:WTBA / West Bancorporation, Inc. Director 13,151
US:AIG / American International Group, Inc. Director 19,279
US:VR / Global X Funds - Global X Metaverse ETF Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Therese M Vaughan. 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 Purchases WTBA / West Bancorporation, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in WTBA / West Bancorporation, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2019-05-23 WTBA Vaughan Therese M 1,200 21.4000 1,200 21.4000 25,680 221 25.6600 5,112 19.91

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WTBA / West Bancorporation, Inc. Insider Trades
Insider Sales WTBA / West Bancorporation, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in WTBA / West Bancorporation, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WTBA / West Bancorporation, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Therese M Vaughan 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
2025-05-29 2025-05-20 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 735 22,261 3.41
2025-05-20 2025-05-19 4 HG Hamilton Insurance Group, Ltd.
Class B Common Shares
P - Purchase 4,750 20,892 29.43 21.05 100,006 439,860
2025-05-19 2025-05-15 4 HG Hamilton Insurance Group, Ltd.
Class B Common Shares
A - Award 7,187 16,142 80.26
2025-05-19 2024-06-13 4 HG Hamilton Insurance Group, Ltd.
Class B Common Shares
A - Award 8,955 8,955
2025-04-25 2025-04-24 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 1,738 13,151 15.23
2024-05-20 2024-05-15 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 847 21,526 4.10
2024-04-30 2024-04-26 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 1,945 11,413 20.54
2023-08-22 2023-08-21 4 VRSK Verisk Analytics, Inc.
Common Stock
S - Sale -6,500 20,679 -23.92 232.45 -1,510,925 4,806,834
2023-08-09 2023-08-08 4 VRSK Verisk Analytics, Inc.
Common Stock
S - Sale -6,129 27,179 -18.40 233.02 -1,428,180 6,333,251
2023-08-09 2023-08-08 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 4,256 33,308 14.65 84.37 359,079 2,810,196
2023-08-09 2023-08-08 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 4,671 29,052 19.16 80.93 378,024 2,351,178
2023-08-09 2023-08-08 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 4,716 24,381 23.98 72.95 344,032 1,778,594
2023-08-09 2023-08-08 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 5,686 19,665 40.68 60.90 346,277 1,197,598
2023-05-24 2023-05-17 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 958 13,979 7.36
2023-04-28 2023-04-27 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 1,868 9,468 24.58
2022-09-09 2022-09-09 4 VRSK Verisk Analytics, Inc.
Common Stock
S - Sale -932 13,021 -6.68 192.30 -179,224 2,503,938
2022-09-09 2022-09-09 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 2,889 13,953 26.11 60.71 175,391 847,087
2022-08-10 2022-08-09 4 VRSK Verisk Analytics, Inc.
Common Stock
S - Sale -629 11,064 -5.38 199.22 -125,309 2,204,170
2022-08-10 2022-08-09 4 VRSK Verisk Analytics, Inc.
Common Stock
M - Exercise 2,023 11,693 20.92 60.71 122,816 709,882
2022-07-12 2022-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 792 9,670 8.92
2022-05-13 2022-05-11 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 3,156 19,279 19.57
2022-05-02 2022-04-28 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 1,167 7,600 18.14
2022-04-05 2022-04-01 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 82 16,123 0.51
2022-01-05 2022-01-03 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 88 16,041 0.55
2021-10-05 2021-10-01 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 85 15,953 0.54
2021-07-12 2021-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 803 803
2021-07-12 2021-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 1,238 1,238
2021-07-12 2021-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 785 8,878 9.70
2021-07-06 2021-07-01 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 104 15,868 0.66
2021-05-14 2021-05-12 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 3,694 15,764 30.60
2021-05-03 2021-04-29 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 900 6,433 16.27
2021-04-05 2021-04-01 4 AIG AMERICAN INTERNATIONAL GROUP, INC.
Deferred Stock Unit
A - Award 82 12,070 0.68
2021-01-06 2021-01-04 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 102 11,988 0.86
2020-10-05 2020-10-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 135 11,886 1.15
2020-07-07 2020-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 1,209 1,209
2020-07-07 2020-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 718 8,093 9.74
2020-07-06 2020-07-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 125 11,751 1.08
2020-05-15 2020-05-13 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 6,810 11,626 141.40
2020-04-24 2020-04-23 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 1,315 5,533 31.18
2020-04-03 2020-04-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 70 4,816 1.47
2020-01-06 2020-01-02 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 25 4,746 0.53
2020-01-06 2020-01-02 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 603 4,721 14.64
2019-10-03 2019-10-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 20 4,118 0.49
2019-10-03 2019-10-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 574 4,098 16.29
2019-07-08 2019-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 1,569 1,569
2019-07-08 2019-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 838 7,375 12.82
2019-07-02 2019-07-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 19 3,524 0.54
2019-07-02 2019-07-01 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 267 3,505 8.25
2019-05-23 2019-05-23 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
P - Purchase 1,200 4,218 39.76 21.40 25,680 90,265
2019-05-23 2019-05-23 4 AIG AMERICAN INTERNATIONAL GROUP INC
Common Stock
P - Purchase 1,000 1,000 51.71 51,710 51,710
2019-05-23 2019-05-21 4 AIG AMERICAN INTERNATIONAL GROUP INC
Deferred Stock Unit
A - Award 3,238 3,238
2019-04-26 2019-04-26 4 WTBA WEST BANCORPORATION INC
COMMON STOCK
A - Award 2,000 3,018 196.46
2019-04-26 3 WTBA WEST BANCORPORATION INC
COMMON STOCK
2,036
2019-04-26 3 WTBA WEST BANCORPORATION INC
COMMON STOCK
2,036
2019-04-26 3 WTBA WEST BANCORPORATION INC
COMMON STOCK
2,036
2018-07-20 2018-07-18 4 VR VALIDUS HOLDINGS LTD
Common Stock
D - Sale to Issuer -6,756 0 -100.00 68.00 -459,408
2018-07-09 2018-07-01 4/A VRSK Verisk Analytics, Inc.
Stock Option
A - Award 1,582 1,582
2018-07-09 2018-07-01 4/A VRSK Verisk Analytics, Inc.
Common Stock
A - Award 1,080 6,537 19.79
2018-07-05 2018-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 2,957 2,957
2018-07-05 2018-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 674 6,131 12.35
2017-07-10 2017-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 4,256 4,256
2017-07-10 2017-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 859 5,457 18.68
2017-06-02 2017-06-01 4 VR VALIDUS HOLDINGS LTD
Common Stock
A - Award 1,873 6,756 38.36
2016-07-08 2016-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 4,671 4,671
2016-07-08 2016-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 896 4,598 24.20
2016-06-02 2016-06-01 4 VR VALIDUS HOLDINGS LTD
Common Stock
A - Award 1,027 4,883 26.63
2015-07-06 2015-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 4,716 4,716
2015-07-06 2015-07-01 4 VRSK Verisk Analytics, Inc.
Common Stock
A - Award 908 3,702 32.50
2015-06-02 2015-06-01 4 VR VALIDUS HOLDINGS LTD
Common Stock
A - Award 1,165 3,856 43.29
2014-07-03 2014-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 5,686 5,686
2014-07-03 2014-07-01 4 VRSK Verisk Analytics, Inc.
Class A Common Stock
A - Award 677 2,794 31.98
2014-07-03 2014-07-01 4 VRSK Verisk Analytics, Inc.
Class A Common Stock
A - Award 1,088 2,117 105.73
2014-06-03 2014-06-01 4 VR VALIDUS HOLDINGS LTD
Common Stock
A - Award 1,339 2,691 99.04
2013-10-03 2013-10-01 4 VR VALIDUS HOLDINGS LTD
Common Stock
A - Award 1,352 1,352
2013-07-03 2013-07-01 4 VRSK Verisk Analytics, Inc.
Stock Option
A - Award 4,912 4,912
2013-07-03 2013-07-01 4 VRSK Verisk Analytics, Inc.
Class A Common Stock
A - Award 1,029 1,029
2013-05-10 3 VR VALIDUS HOLDINGS LTD
Common Stock
0
2013-02-20 3 VRSK Verisk Analytics, 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)