Claritev Corporation
US ˙ NYSE

Introduction

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

Security Title Latest Reported Holdings
US:SKIL / Skillsoft Corp. Director 26,906
Director 200,000
See Remarks, Director, 10% Owner 10,650,000
US:CTEV / Claritev Corporation Director 15,357
See Remarks, Director, 10% Owner 725,000
US:CCV / Churchill Capital Corp V - Class A 10% Owner 12,500,000
US:HOFV / Hall of Fame Resort & Entertainment Company Director 419,382
Director, 10% Owner 0
Director 12,316
US:C / Citigroup Inc. Co-President Citigroup CIB 735,188
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 Stuart Klein. 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 CTEV / Claritev Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CTEV / Claritev Corporation. 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 (%)
2020-11-17 MPLN Klein Michael Stuart 700,000 7.0370 17,500 281.4800 4,925,900 35 9.7000 -4,756,150 -96.55
2020-11-16 MPLN Klein Michael Stuart 700,000 7.1106 17,500 284.4240 4,977,420
2020-11-13 MPLN Klein Michael Stuart 741,000 6.5960 18,525 263.8400 4,887,636
2020-10-07 CCXX Klein Michael Stuart 261,711 10.2967 6,543 411.8680 2,694,760
2020-10-06 CCXX Klein Michael Stuart 220,000 10.3100 5,500 412.4000 2,268,200

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

CTEV / Claritev Corporation Insider Trades
Insider Sales CTEV / Claritev Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CTEV / Claritev Corporation. 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.

CTEV / Claritev Corporation Insider Trades
Insider Purchases HOFV / Hall of Fame Resort & Entertainment Company - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CTEV / Claritev Corporation. 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 (%)
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.

HOFV / Hall of Fame Resort & Entertainment Company Insider Trades
Insider Sales HOFV / Hall of Fame Resort & Entertainment Company - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CTEV / Claritev Corporation. 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 (%)
2020-07-22 HOFV Klein Michael Stuart 90,287 12.1800 4,104 267.9600 1,099,696 313 3.65 -1,084,719 -98.64

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

HOFV / Hall of Fame Resort & Entertainment Company Insider Trades
Insider Purchases SKIL / Skillsoft Corp. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in CTEV / Claritev Corporation. 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 (%)
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.

SKIL / Skillsoft Corp. Insider Trades
Insider Sales SKIL / Skillsoft Corp. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in CTEV / Claritev Corporation. 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.

SKIL / Skillsoft Corp. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Michael Stuart Klein 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
2025-07-18 2025-07-17 4 SKIL Skillsoft Corp.
Class A Common Stock
M - Exercise 20,306 26,906 307.67
2025-06-25 2025-06-23 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
S - Sale -12,900 200,000 -6.06 55.22 -712,293 11,043,300
2025-06-25 2025-06-23 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
S - Sale -12,100 212,900 -5.38 53.71 -649,847 11,434,093
2025-06-25 2025-06-23 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
S - Sale -25,000 225,000 -10.00 55.22 -1,380,512 12,424,612
2025-06-23 2025-06-20 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
S - Sale -150,000 250,000 -37.50 62.74 -9,411,705 15,686,175
2025-06-23 2025-06-18 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
S - Sale -100,000 400,000 -20.00 63.53 -6,352,570 25,410,280
2025-05-19 2025-05-15 4 CCCXU Churchill Capital Corp X/Cayman
Class A Ordinary Shares
P - Purchase 300,000 10,650,000 2.90 10.00 3,000,000 106,500,000
2025-05-02 2025-04-30 4 CTEV Claritev Corp
Class A common stock
A - Award 7,356 15,357 91.94
2024-11-18 2024-11-14 4 OKLO Oklo Inc.
Common Stock, par value $0.0001 per share
J - Other -13,450,000 500,000 -96.42
2024-07-22 2024-07-18 4 SKIL Skillsoft Corp.
Class A Common Stock
M - Exercise 3,750 6,600 131.58
2024-07-02 2021-07-12 4/A OKLO Oklo Inc.
Class A common stock, par value $0.0001 per share
A - Award 1,450,000 1,450,000 10.00 14,500,000 14,500,000
2024-07-02 2024-05-09 4/A OKLO Oklo Inc.
Class A Common Stock, par value $0.0001 per share
M - Exercise 12,500,000 13,950,000 862.07
2024-05-13 2024-05-09 4 OKLO Oklo Inc.
Class A Common Stock, par value $0.0001 per share
M - Exercise 12,500,000 13,935,500 870.78
2024-05-08 2024-05-06 4 CCIX U Churchill Capital Corp IX/Cayman
Class A Ordinary Shares
P - Purchase 725,000 725,000 10.00 7,250,000 7,250,000
2024-04-26 2024-04-24 4 MPLN MultiPlan Corp
Class A common stock
A - Award 172,413 320,082 116.76
2023-06-23 2023-06-23 4 SKIL Skillsoft Corp.
Class A Common Stock
M - Exercise 35,398 57,019 163.72
2023-04-28 2023-04-26 4 MPLN MultiPlan Corp
Class A common stock
A - Award 106,382 147,669 257.66
2022-06-24 2022-06-23 4 SKIL Skillsoft Corp.
Class A Common Stock
M - Exercise 21,621 21,621
2022-04-28 2022-04-26 4 MPLN MultiPlan Corp
Class A common stock
A - Award 22,271 41,287 117.12
2021-12-30 2021-12-28 4 SKIL Skillsoft Corp.
Restricted Stock Units
A - Award 21,621 21,621
2021-07-14 2021-07-12 4 ALCC AltC Acquisition Corp.
Class A common stock, par value $0.0001 per share
A - Award 1,435,000 1,435,500 287,000.00 10.00 14,350,000 14,355,000
2021-06-14 2021-06-11 4 SKIL Skillsoft Corp.
Warrants
A - Award 1,500,000 16,300,000 10.14
2021-06-14 2021-06-11 4 SKIL Skillsoft Corp.
Class B common stock
M - Exercise -17,250,000 0 -100.00
2021-06-14 2021-06-11 4 SKIL Skillsoft Corp.
Class A common stock
M - Exercise 17,250,000 17,250,000
2021-06-01 2021-05-27 4 MPLN MultiPlan Corp
Class A common stock
A - Award 11,723 19,016 160.74
2020-12-28 2020-12-23 4 MPLN MultiPlan Corp
Class A common stock
A - Award 7,293 7,293
2020-12-22 2020-12-18 4 CCV Churchill Capital Corp V
Class B common stock
J - Other -437,500 12,500,000 -3.38
2020-11-17 2020-11-17 4 MPLN MultiPlan Corp
Class A common stock
P - Purchase 700,000 30,122,711 2.38 7.04 4,925,900 211,973,517
2020-11-16 2020-11-16 4 MPLN MultiPlan Corp
Class A common stock
P - Purchase 700,000 29,422,711 2.44 7.11 4,977,420 209,213,129
2020-11-13 2020-11-13 4 MPLN MultiPlan Corp
Class A common stock
P - Purchase 741,000 28,722,711 2.65 6.60 4,887,636 189,455,002
2020-10-08 2020-10-08 4 CCXX MultiPlan Corp
Warrants
A - Award 1,500,000 24,500,000 6.52
2020-10-08 2020-10-08 4 CCXX MultiPlan Corp
Class B common stock
M - Exercise -27,500,000 27,500,000 -50.00
2020-10-08 2020-10-08 4 CCXX MultiPlan Corp
Class A common stock
M - Exercise 27,500,000 27,981,711 5,708.82
2020-10-08 2020-10-07 4 CCXX MultiPlan Corp
Class A common stock
P - Purchase 261,711 481,711 118.96 10.30 2,694,760 4,960,034
2020-10-08 2020-10-06 4 CCXX MultiPlan Corp
Class A common stock
P - Purchase 220,000 220,000 10.31 2,268,200 2,268,200
2020-07-24 2020-07-22 4 HOFV Hall of Fame Resort & Entertainment Co
Common Stock
S - Sale -90,287 419,382 -17.71 12.18 -1,099,696 5,108,073
2020-07-07 2020-07-01 4 HOFV Hall of Fame Resort & Entertainment Co
Common Stock
A - Award 509,669 509,669
2020-07-07 2020-07-01 4 HOFV Hall of Fame Resort & Entertainment Co
Common Stock
A - Award 1,078,984 1,078,984
2019-05-14 2019-05-13 4 CCC Churchill Capital Corp
Class B common stock, par value $0.0001 per share
D - Sale to Issuer 17,050,000 0 -100.00
2019-05-14 2019-05-13 4 CCC Churchill Capital Corp
Class B common stock, par value $0.0001 per share
D - Sale to Issuer 500,000 0 -100.00
2019-05-14 2019-05-13 4 CCC Churchill Capital Corp
Class B common stock, par value $0.0001 per share
A - Award 500,000 500,000 10.00 5,000,000 5,000,000
2019-05-14 2019-05-11 4 CCC Churchill Capital Corp
Class B common stock, par value $0.0001 per share
S - Sale 200,000 17,050,000 1.19 0.00 280 23,870
2012-12-04 2012-12-01 4 IHS IHS Inc.
Class A Common Stock
A - Award 1,621 12,316 15.16
2007-02-09 3 C CITIGROUP INC
Common Stock
735,188
2007-02-09 3 C CITIGROUP INC
Common Stock
43,477
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)