Introduction

This page provides a comprehensive analysis of the known insider trading history of Christopher Michael Berry. 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.

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Companies with Reported Insider Positions

The SEC filings indicate Christopher Michael Berry has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:DVA / DaVita Inc. Chief Accounting Officer 15,991
US:SOND / Sonder Holdings Inc. SVP, Chief Accounting Officer 234,180
US:ALK / Alaska Air Group, Inc. VP FIN AND CONTROLLER 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 Christopher Michael Berry. 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 Christopher Michael Berry 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
2025-03-18 2025-03-15 4 DVA DAVITA INC.
Common Stock 		A - Award 3,834 15,991 31.54
2024-03-18 2024-03-15 4 DVA DAVITA INC.
Common Stock 		A - Award 3,659 12,127 43.21
2023-11-17 2023-11-15 4 DVA DAVITA INC.
Common Stock 		A - Award 8,468 8,468
2023-08-17 2023-08-17 4 SOND Sonder Holdings Inc.
Common Stock 		P - Purchase 18,180 234,180 8.42 0.49 8,908 114,748
2023-08-17 2023-08-15 4 SOND Sonder Holdings Inc.
Common Stock 		M - Exercise 125,000 216,000 137.36
2023-05-16 2023-05-16 4 SOND Sonder Holdings Inc.
Common Stock 		P - Purchase 16,000 91,000 21.33 0.33 5,280 30,030
2023-05-16 2023-05-15 4 SOND Sonder Holdings Inc.
Common Stock 		P - Purchase 14,000 75,000 22.95 0.32 4,480 24,000
2023-03-07 2023-03-06 4 SOND Sonder Holdings Inc.
Common Stock 		P - Purchase 15,000 61,000 32.61 1.04 15,600 63,440
2022-08-03 3 SOND Sonder Holdings Inc.
Common Stock 		46,000
2022-02-16 2022-02-14 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -1,000 0 -100.00
2022-02-16 2022-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -244 6,743 -3.49 57.01 -13,910 384,418
2022-02-16 2022-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 1,000 6,987 16.70
2022-02-09 2022-02-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -144 5,987 -2.35 55.36 -7,972 331,440
2022-02-09 2022-02-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 597 6,131 10.79
2021-11-08 2021-11-05 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -656 1,314 -33.30
2021-11-08 2021-11-05 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -160 5,534 -2.81 59.35 -9,496 328,443
2021-11-08 2021-11-05 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 656 5,694 13.02
2021-11-08 2021-10-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 153 5,038 3.13 44.88 6,867 226,105
2021-11-08 2021-04-30 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 182 4,885 3.87 32.21 5,862 157,329
2021-02-19 2021-02-19 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -963 4,703 -17.00 62.14 -59,841 292,245
2021-02-16 2021-02-13 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -880 0 -100.00
2021-02-16 2021-02-13 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -213 5,666 -3.62 57.56 -12,260 326,135
2021-02-16 2021-02-13 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 880 5,879 17.60
2021-02-10 2021-02-09 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 1,000 1,000
2021-02-10 2021-02-09 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTION (RT TO BUY) 		A - Award 2,510 2,510
2021-02-10 2021-02-08 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -98 4,999 -1.92 57.08 -5,594 285,343
2021-02-10 2021-02-08 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 394 5,097 8.38
2020-12-04 2020-12-04 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -630 4,703 -11.81 54.05 -34,052 254,197
2020-11-09 2020-11-05 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTIONS (RT TO BUY) 		A - Award 1,690 1,690
2020-11-09 2020-11-05 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 1,970 1,970
2020-11-09 2020-10-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 42 5,333 0.79 25.59 1,075 136,490
2020-05-28 2020-05-28 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		P - Purchase 570 5,291 12.07 34.92 19,904 184,762
2020-05-28 2020-04-30 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 342 4,721 7.81 27.64 9,454 130,498
2020-03-09 2020-03-07 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -417 0 -100.00
2020-03-09 2020-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -102 4,379 -2.28 45.21 -4,611 197,975
2020-03-09 2020-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 417 4,481 10.26
2020-02-18 2020-02-14 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -490 0 -100.00
2020-02-18 2020-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -120 4,064 -2.87 66.11 -7,933 268,671
2020-02-18 2020-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 490 4,184 13.26
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTION (RT TO BUY) 		A - Award 2,520 2,520
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 590 590
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -204 3,694 -5.23 64.55 -13,168 238,448
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -187 3,898 -4.58 64.55 -12,071 251,616
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 767 4,085 23.12
2020-02-13 2020-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 834 3,318 33.57
2020-02-13 2019-08-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 169 2,484 7.30 50.76 8,579 126,093
2019-03-08 2019-03-07 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -417 417 -50.00
2019-03-08 2019-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -102 2,315 -4.22 55.95 -5,707 129,524
2019-03-08 2019-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 417 2,417 20.85
2019-03-08 2019-02-28 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 137 2,000 7.35 52.44 7,185 104,890
2019-02-19 2019-02-14 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 1,000 1,000
2019-02-19 2019-02-14 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTION (RT TO BUY) 		A - Award 3,810 3,810
2019-02-19 2019-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -204 1,863 -9.87 66.57 -13,580 124,020
2019-02-19 2019-02-14 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 834 2,067 67.64
2019-02-15 2019-02-13 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -750 1,233 -37.82 67.14 -50,357 82,786
2019-02-12 2019-02-09 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -180 1,983 -8.32 65.27 -11,749 129,430
2019-02-12 2018-08-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 136 2,163 6.71 54.95 7,474 118,862
2018-03-08 2018-03-07 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		M - Exercise -416 834 -33.28
2018-03-08 2018-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -102 2,027 -4.79 64.00 -6,528 129,728
2018-03-08 2018-03-07 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		M - Exercise 416 2,129 24.28
2018-03-08 2018-02-28 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 43 1,713 2.57 54.82 2,357 93,915
2018-02-21 2018-02-21 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -789 1,670 -32.09 65.93 -52,020 110,106
2018-02-14 2018-02-13 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTION (RT TO BUY) 		A - Award 3,400 3,400
2018-02-14 2018-02-13 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 880 880
2018-02-14 2018-02-13 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -203 2,459 -7.63 66.89 -13,579 164,483
2018-02-14 2018-02-13 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 832 2,662 45.46
2018-02-12 2018-02-10 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -204 1,830 -10.03 64.72 -13,203 118,438
2018-02-12 2017-08-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 37 2,034 1.85 63.46 2,348 129,080
2018-02-12 2017-02-21 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -460 1,997 -18.72 97.00 -44,620 193,709
2017-03-09 2017-03-07 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 1,250 1,250
2017-02-16 2017-02-16 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale -500 2,425 -17.09 96.62 -48,310 234,301
2017-02-16 2017-02-14 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNITS 		A - Award 490 490
2017-02-16 2017-02-14 4 ALK ALASKA AIR GROUP, INC.
EMPLOYEE STOCK OPTION (RT TO BUY) 		A - Award 1,120 1,120
2017-02-14 2017-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -448 1,212 -26.99 97.35 -43,613 117,988
2017-02-14 2017-02-11 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNIT 		J - Other -1,660 1,580 -51.23
2017-02-14 2017-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 1,660 1,660
2016-12-09 2016-12-08 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		S - Sale -107 133 -44.58 87.56 -9,369 11,645
2016-12-09 2016-08-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		A - Award 31 240 14.83 57.40 1,779 13,776
2016-03-21 2016-03-18 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale X -731 0 -100.00 83.00 -60,673
2016-03-14 2016-03-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		S - Sale X -731 731 -50.00 80.00 -58,480 58,480
2016-03-14 2016-02-29 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		A - Award 28 209 15.47 62.82 1,759 13,128
2016-02-16 2016-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		F - Taxes -538 1,462 -26.90 66.94 -36,014 97,866
2016-02-16 2016-02-11 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNIT 		J - Other -2,000 3,240 -38.17
2016-02-16 2016-02-11 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK 		A - Award 2,000 2,000
2016-02-11 2016-02-09 4 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNIT 		A - Award 740 5,240 16.44
2015-11-18 2015-11-16 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		S - Sale -66 181 -26.72 76.27 -5,034 13,805
2015-08-04 2015-07-31 4 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		S - Sale -100 215 -31.75 75.68 -7,568 16,272
2015-03-13 3 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		5,130
2015-03-13 3 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNIT 		9,315
2015-03-13 3 ALK ALASKA AIR GROUP, INC.
COMMON STOCK ESPP 		5,130
2015-03-13 3 ALK ALASKA AIR GROUP, INC.
RESTRICTED STOCK UNIT 		9,315
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)