Introduction

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

Security Title Latest Reported Holdings
US:LW / Lamb Weston Holdings, Inc. GEN COUNSEL & CHIEF COMPL OFF 21,503
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Eryk J Spytek. 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 Eryk J Spytek 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
2025-08-07 2025-08-05 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -1,867 21,503 -7.99 53.16 -99,250 1,143,105
2025-07-30 2025-07-29 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -721 23,371 -2.99 59.46 -42,871 1,389,634
2025-07-28 2025-07-25 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 7,886 24,092 48.66
2025-07-16 2025-07-15 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -3,680 16,206 -18.51 49.79 -183,227 806,892
2025-07-16 2025-07-15 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 7,124 19,886 55.82
2025-01-13 2025-01-10 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -4,249 30,213 -12.33 60.73 -258,042 1,834,835
2024-08-07 2024-08-06 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -442 34,181 -1.28 57.38 -25,362 1,961,300
2024-07-31 2024-07-29 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -6,889 34,623 -16.60 56.23 -387,368 1,946,846
2024-07-29 2024-07-26 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 7,899 41,513 23.50
2023-08-02 2023-08-02 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -6,319 1,052 -85.73 103.23 -652,310 108,598
2023-08-01 2023-07-30 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -4,911 40,543 -10.80 102.08 -501,315 4,138,670
2023-08-01 2023-07-29 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -456 45,454 -0.99 102.08 -46,548 4,639,985
2023-07-28 2023-07-27 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 4,383 45,910 10.55
2023-01-05 2023-01-03 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -6,523 0 -100.00 88.82 -579,359
2023-01-05 2023-01-03 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -12,557 6,523 -65.81 87.91 -1,103,940 573,465
2022-08-08 2022-08-05 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -3,001 47,936 -5.89 79.97 -239,990 3,833,442
2022-08-02 2022-07-30 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -1,324 50,937 -2.53 79.66 -105,470 4,057,641
2022-08-02 2022-07-29 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 4,519 52,261 9.47
2022-07-22 2022-07-20 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 6,770 47,742 16.52
2022-07-22 2022-07-20 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -1,315 40,972 -3.11 74.61 -98,112 3,056,921
2022-07-22 2022-07-20 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 4,332 42,287 11.41
2022-07-11 2022-07-07 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -3,867 37,955 -9.25 75.00 -290,025 2,846,625
2022-01-11 2022-01-10 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 13,131 41,557 46.19
2021-07-30 2021-07-29 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 5,353 28,261 23.37
2021-07-29 2021-07-27 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -5,378 22,908 -19.01 65.79 -353,819 1,507,117
2021-07-22 2021-07-21 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 6,550 28,286 30.13
2021-01-14 2021-01-13 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale X -6,183 33,829 -15.45 75.00 -463,725 2,537,145
2020-08-03 2020-07-30 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 4,329 39,868 12.18
2020-07-30 2020-07-28 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -7,553 35,539 -17.53 62.42 -471,458 2,218,320
2020-01-08 2020-01-08 4 LW Lamb Weston Holdings, Inc.
Common Stock
S - Sale -6,000 42,877 -12.28 92.07 -552,436 3,947,756
2019-10-16 2019-10-14 4 LW Lamb Weston Holdings, Inc.
Common Stock
F - Taxes -8,740 48,789 -15.19 75.84 -662,842 3,700,183
2019-07-31 2019-07-30 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 4,145 57,426 7.78
2019-07-24 2019-07-22 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 9,043 53,281 20.44
2018-07-30 2018-07-27 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 3,724 43,971 9.25
2018-07-20 2018-07-18 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 13,772 40,247 52.02
2017-12-05 2017-12-01 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 19 26,440 0.07
2017-09-06 2017-09-01 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 22 26,421 0.08
2017-08-01 2017-07-28 4 LW Lamb Weston Holdings, Inc.
Common Stock
A - Award 5,476 26,399 26.17
2016-11-15 3 LW Lamb Weston Holdings, Inc.
Common Stock
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)