Introduction

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

Security Title Latest Reported Holdings
US:CB / Chubb Limited Director 2,450
US:C / Citigroup Inc. Chief Executive Officer, Director 688,902
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 Corbat. 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 Corbat 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
2025-07-28 2025-07-25 4 CB Chubb Ltd
Common Shares
P - Purchase 425 2,450 20.99 269.80 114,665 661,010
2025-05-16 2025-05-15 4 CB Chubb Ltd
Common Shares
F - Taxes -180 2,025 -8.16 292.05 -52,569 591,401
2025-05-16 2025-05-15 4 CB Chubb Ltd
Common Shares
A - Award 771 2,205 53.77
2024-05-17 2024-05-16 4 CB Chubb Ltd
Common Shares
F - Taxes -239 1,434 -14.29 264.88 -63,306 379,838
2024-05-17 2024-05-16 4 CB Chubb Ltd
Common Shares
A - Award 718 1,673 75.18
2023-05-19 2023-05-17 4 CB Chubb Ltd
Common Shares
A - Award 955 955
2021-02-12 2021-02-11 4 C CITIGROUP INC
Common Stock
A - Award 97,299 688,902 16.45
2021-01-22 2021-01-20 4 C CITIGROUP INC
Performance Share Units
A - Award 29,316 29,316
2021-01-22 2021-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -52,263 591,603 -8.12 63.69 -3,328,651 37,679,165
2020-02-14 2020-02-13 4 C CITIGROUP INC
Common Stock
A - Award 99,795 643,866 18.34
2020-01-22 2020-01-20 4 C CITIGROUP INC
Performance Share Units
A - Award 101,650 101,650
2020-01-22 2020-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -55,675 544,071 -9.28 81.12 -4,516,358 44,135,052
2019-11-05 2019-11-04 4 C CITIGROUP INC
Common Stock
J - Other -1,781 0 -100.00
2019-02-15 2019-02-14 4 C CITIGROUP INC
Common Stock
A - Award 126,145 599,746 26.64
2019-01-23 2019-01-20 4 C CITIGROUP INC
Performance Share Units
A - Award 100,858 100,858
2019-01-23 2019-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -47,400 473,601 -9.10 63.12 -2,991,904 29,893,686
2018-02-16 2018-02-15 4 C CITIGROUP INC
Common Stock
A - Award 101,088 521,001 24.07
2018-01-24 2018-01-22 4 C CITIGROUP INC
Performance Share Units
A - Award 64,879 64,879
2018-01-24 2018-01-22 4 C CITIGROUP INC
Common Stock
F - Taxes -44,862 419,913 -9.65 78.19 -3,507,772 32,832,997
2017-02-17 2017-02-16 4 C CITIGROUP INC
Common Stock
S - Sale -69,935 464,775 -13.08 60.16 -4,207,290 27,960,873
2017-02-17 2017-02-16 4 C CITIGROUP INC
Common Stock
S - Sale -13,350 534,710 -2.44 60.03 -801,400 32,098,650
2017-02-17 2017-02-16 4 C CITIGROUP INC
Common Stock
A - Award 83,285 548,060 17.92
2017-01-24 2017-01-20 4 C CITIGROUP INC
Performance Share Unit
A - Award 39,499 39,499
2017-01-24 2017-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -44,915 464,775 -8.81 56.58 -2,541,084 26,294,644
2016-11-23 2016-11-22 4 C CITIGROUP INC
Employee Stock Options (Right to Buy)
M - Exercise -150,000 0 -100.00
2016-11-23 2016-11-22 4 C CITIGROUP INC
Common Stock
F - Taxes -142,533 509,690 -21.85 55.54 -7,916,258 28,308,199
2016-11-23 2016-11-22 4 C CITIGROUP INC
Common Stock
M - Exercise 150,000 652,223 29.87 49.10 7,365,000 32,024,142
2016-02-24 2016-02-22 4 C CITIGROUP INC
Performance Share Unit
A - Award 48,457 48,457
2016-02-18 2016-02-16 4 C CITIGROUP INC
Common Stock
A - Award 121,457 502,223 31.90
2016-01-22 2016-01-22 4 C CITIGROUP INC
Common Stock
P - Purchase 25,000 380,765 7.03 41.05 1,026,250 15,630,418
2016-01-22 2016-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -37,205 355,765 -9.47 40.23 -1,496,881 14,313,686
2015-02-20 2015-02-18 4 C CITIGROUP INC
Common Stock
A - Award 68,222 392,970 21.01
2015-01-22 2015-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -41,911 324,748 -11.43 47.58 -1,993,897 15,449,886
2014-02-20 2014-02-18 4 C CITIGROUP INC
Common Stock
A - Award 78,528 366,659 27.25
2014-01-23 2014-01-21 4 C CITIGROUP INC
Common Stock
F - Taxes -31,757 288,131 -9.93 52.40 -1,664,136 15,098,779
2013-02-21 2013-02-19 4 C CITIGROUP INC
Stock Unit
A - Award 47,677 47,677
2013-02-21 2013-02-19 4 C CITIGROUP INC
Common Stock
A - Award 71,366 319,888 28.72
2013-01-24 2013-01-22 4 C CITIGROUP INC
Common Stock
F - Taxes -42,252 248,522 -14.53 41.37 -1,748,067 10,281,972
2012-01-24 2012-01-20 4 C CITIGROUP INC
Common Stock
F - Taxes -18,587 290,774 -6.01 29.16 -541,913 8,477,510
2012-01-19 2012-01-17 4 C CITIGROUP INC
Common Stock
A - Award 73,684 309,361 31.26
2009-04-30 3 C CITIGROUP INC
Common Stock
373,468
2009-04-30 3 C CITIGROUP INC
Common Stock
17,811
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)