Introduction

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

Security Title Latest Reported Holdings
US:DDOG / Datadog, Inc. Chief Revenue Officer 201,702
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Sean Michael Walters. 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 Sean Michael Walters 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
2025-09-04 2025-09-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -10,622 201,702 -5.00 133.85 -1,421,722 26,997,187
2025-07-08 2025-07-03 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -9,469 212,324 -4.27 150.00 -1,420,350 31,848,600
2025-06-18 2025-06-17 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -9,468 221,793 -4.09 125.00 -1,183,500 27,724,125
2025-06-13 2025-06-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -700 231,261 -0.30 120.53 -84,368 27,872,894
2025-06-13 2025-06-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,573 231,961 -0.67 119.97 -188,707 27,827,457
2025-06-13 2025-06-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,897 233,534 -0.81 118.71 -225,194 27,722,938
2025-06-04 2025-06-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -11,167 235,431 -4.53 116.84 -1,304,763 27,507,993
2025-04-03 2025-04-01 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 60,589 246,460 32.60
2025-03-13 2025-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -100 185,871 -0.05 103.47 -10,347 19,232,072
2025-03-13 2025-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,800 185,971 -0.96 102.69 -184,834 19,096,544
2025-03-13 2025-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -6,554 187,771 -3.37 101.85 -667,500 19,123,763
2025-03-05 2025-03-03 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -20,024 194,325 -9.34 115.86 -2,320,039 22,515,058
2025-02-27 2025-02-25 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 55,887 214,349 35.27
2024-12-13 2024-12-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -207 158,462 -0.13 159.42 -33,001 25,262,662
2024-12-13 2024-12-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -600 158,669 -0.38 158.49 -95,092 25,146,926
2024-12-13 2024-12-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,753 159,269 -1.09 157.58 -276,238 25,097,593
2024-12-13 2024-12-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -4,576 161,022 -2.76 156.12 -714,390 25,138,207
2024-12-13 2024-12-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -700 165,598 -0.42 154.64 -108,249 25,608,307
2024-12-04 2024-12-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -8,395 166,298 -4.81 152.14 -1,277,216 25,300,594
2024-11-26 2024-11-22 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -4,674 174,693 -2.61 150.00 -701,100 26,203,950
2024-11-22 2024-11-20 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -4,244 179,367 -2.31 135.00 -572,940 24,214,545
2024-10-10 2024-10-08 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,322 183,512 -1.25 125.00 -290,250 22,939,000
2024-09-13 2024-09-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,696 185,834 -0.90 109.12 -185,068 20,278,225
2024-09-13 2024-09-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,400 187,530 -0.74 108.11 -151,356 20,274,131
2024-09-05 2024-09-03 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -97 188,930 -0.05 111.85 -10,849 21,130,970
2024-09-05 2024-09-03 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -8,394 189,027 -4.25 113.52 -952,853 21,457,589
2024-07-01 2024-06-27 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,351 197,421 -1.18 125.00 -293,875 24,677,625
2024-06-13 2024-06-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -566 199,772 -0.28 114.48 -64,796 22,870,018
2024-06-13 2024-06-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,568 200,338 -1.27 113.39 -291,175 22,715,504
2024-06-05 2024-06-03 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -8,394 202,906 -3.97 109.46 -918,765 22,209,076
2024-05-31 2024-05-29 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 48,465 211,300 29.76
2024-04-15 2024-04-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,203 162,706 -1.34 130.94 -288,450 21,303,959
2024-04-15 2024-04-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -3,734 164,909 -2.21 130.14 -485,953 21,461,703
2024-04-15 2024-04-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,763 168,643 -1.61 129.34 -357,363 21,812,083
2024-04-15 2024-04-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,300 171,406 -0.75 128.34 -166,843 21,998,383
2024-03-13 2024-03-13 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -4,237 172,706 -2.39 125.00 -529,625 21,588,250
2024-03-13 2024-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -200 176,943 -0.11 122.26 -24,451 21,632,166
2024-03-13 2024-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,832 177,143 -1.57 121.60 -344,369 21,540,429
2024-03-13 2024-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,700 179,975 -0.94 120.34 -204,573 21,657,670
2024-03-13 2024-03-11 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -918 181,675 -0.50 119.24 -109,461 21,662,673
2024-03-06 2024-03-04 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -1 182,593 0.00 130.56 -131 23,838,429
2024-03-06 2024-03-04 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -20,691 182,594 -10.18 128.58 -2,660,387 23,477,389
2024-02-29 2024-02-27 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 56,846 203,285 38.82
2024-01-19 2024-01-17 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -10,006 146,439 -6.40 125.00 -1,250,750 18,304,875
2023-12-13 2023-12-11 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -2,100 156,445 -1.32 115.54 -242,634 18,075,687
2023-12-13 2023-12-11 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -11,154 158,545 -6.57 114.74 -1,279,850 18,192,024
2023-12-06 2023-12-04 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -20 169,699 -0.01 117.91 -2,358 20,008,513
2023-12-06 2023-12-04 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -6,503 169,719 -3.69 116.77 -759,381 19,818,767
2023-09-13 2023-09-11 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -1,210 176,062 -0.68 100.00 -121,000 17,606,200
2023-09-13 2023-09-11 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -1,210 177,272 -0.68 98.39 -119,052 17,441,792
2023-09-07 2023-09-05 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -12 178,482 -0.01 97.44 -1,169 17,391,286
2023-09-07 2023-09-05 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -2 178,494 0.00 97.42 -195 17,388,885
2023-09-07 2023-09-05 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -5 178,496 0.00 97.39 -487 17,383,725
2023-09-07 2023-09-05 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -6,501 178,501 -3.51 96.25 -625,721 17,180,721
2023-07-11 2023-07-07 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -7,812 184,841 -4.05 100.01 -781,289 18,486,207
2023-06-06 2023-06-05 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -1,111 192,653 -0.57 110.29 -122,534 21,247,931
2023-06-06 2023-06-02 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -6,502 193,764 -3.25 100.33 -652,359 19,440,730
2023-04-27 2023-04-25 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 61,630 200,266 44.45
2023-03-06 2023-03-06 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -1,100 138,636 -0.79 77.86 -85,651 10,794,823
2023-03-06 2023-03-06 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale X -2,038 139,736 -1.44 76.86 -156,641 10,740,123
2023-03-06 2023-03-02 4 DDOG Datadog, Inc.
Common A Common Stock
S - Sale -15,195 141,774 -9.68 73.69 -1,119,794 10,448,021
2023-02-22 2023-02-17 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 17,091 156,969 12.22
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -435 139,878 -0.31 82.47 -35,876 11,536,158
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -250 140,313 -0.18 81.56 -20,390 11,444,209
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -150 140,563 -0.11 80.08 -12,012 11,256,749
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -50 140,713 -0.04 77.94 -3,897 10,967,171
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -400 140,763 -0.28 77.22 -30,890 10,870,254
2023-02-03 2023-02-01 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -1,226 141,163 -0.86 76.38 -93,641 10,781,903
2022-12-14 2022-12-12 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -500 142,389 -0.35 78.21 -39,105 11,136,244
2022-12-14 2022-12-12 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -3,800 142,889 -2.59 77.72 -295,318 11,104,662
2022-12-14 2022-12-12 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -2,263 146,689 -1.52 76.76 -173,706 11,259,716
2022-12-14 2022-12-12 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale X -300 148,952 -0.20 74.97 -22,491 11,166,931
2022-12-06 2022-12-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -2,873 149,252 -1.89 74.63 -214,422 11,139,214
2022-09-07 2022-09-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -2,661 151,978 -1.72 98.18 -261,257 14,921,200
2022-06-06 2022-06-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -1,471 154,639 -0.94 102.22 -150,366 15,807,199
2022-03-11 2022-03-09 4 DDOG Datadog, Inc.
Class B Common Stock
C - Conversion -14,250 0 -100.00
2022-03-11 2022-03-09 4 DDOG Datadog, Inc.
Class B Common Stock
M - Exercise 14,250 14,250
2022-03-11 2022-03-09 4 DDOG Datadog, Inc.
Stock Option (Right to Buy)
M - Exercise -14,250 0 -100.00
2022-03-11 2022-03-09 4 DDOG Datadog, Inc.
Class A Common Stock
C - Conversion 14,250 155,998 10.05
2022-03-04 2022-03-02 4 DDOG Datadog, Inc.
Class A Common Stock
S - Sale -699 141,748 -0.49 157.83 -110,326 22,372,597
2022-02-28 2022-02-24 4 DDOG Datadog, Inc.
Class A Common Stock
A - Award 85,948 142,447 152.12
2022-01-18 3 DDOG Datadog, Inc.
Class A Common Stock
56,499
2022-01-18 3 DDOG Datadog, Inc.
Class A Common Stock
8
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)