Preformed Line Products Company
US ˙ NasdaqGS ˙ US7404441047

Introduction

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

Security Title Latest Reported Holdings
US:PLPC / Preformed Line Products Company Director 4,100
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by C Sunkle David. 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 PLPC / Preformed Line Products Company - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in PLPC / Preformed Line Products Company. 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.

PLPC / Preformed Line Products Company Insider Trades
Insider Sales PLPC / Preformed Line Products Company - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in PLPC / Preformed Line Products Company. 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 (%)
2017-11-14 PLPC David C Sunkle 3,677 62.3600 3,677 62.3600 229,298 107 59.9500 -8,861 -3.86
2015-03-26 PLPC David C Sunkle 284 45.3900 284 45.3900 12,891
2014-03-20 plpc David C Sunkle 303 62.9900 303 62.9900 19,086
2013-11-12 plpc David C Sunkle 1,000 78.9100 1,000 78.9100 78,910
2013-05-08 PLPC David C Sunkle 3,000 76.9800 3,000 76.9800 230,940
2012-08-30 PLPC David C Sunkle 200 58.6100 200 58.6100 11,722
2012-08-29 PLPC David C Sunkle 200 58.1100 200 58.1100 11,622
2012-08-24 PLPC David C Sunkle 200 57.4000 200 57.4000 11,480
2012-08-23 PLPC David C Sunkle 400 58.1300 400 58.1300 23,252
2012-06-08 PLPC David C Sunkle 200 54.2100 200 54.2100 10,842
2012-06-07 PLPC David C Sunkle 400 54.3300 400 54.3300 21,732
2012-06-06 PLPC David C Sunkle 200 52.8300 200 52.8300 10,566
2012-06-05 PLPC David C Sunkle 200 51.1750 200 51.1750 10,235

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

PLPC / Preformed Line Products Company Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by C Sunkle David 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
2025-05-07 2025-05-07 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -451 4,100 -9.91 137.08 -61,823 562,028
2024-12-16 2024-12-12 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 551 4,551 13.78
2024-03-14 2024-03-13 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,000 4,000 -33.33 131.90 -263,800 527,600
2023-08-11 2023-08-11 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,000 6,226 -24.31 171.84 -343,680 1,069,876
2023-06-16 2023-06-15 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -3,044 8,226 -27.01 156.15 -475,321 1,284,490
2023-03-16 2022-12-15 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,000 7,305 -21.49 89.02 -178,040 650,291
2023-03-16 2022-09-15 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -3,098 9,305 -24.98 79.52 -246,353 739,934
2023-02-10 2023-02-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -567 11,270 -4.79 86.66 -49,136 976,658
2023-02-10 2023-02-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 1,612 11,837 15.77
2023-01-05 2023-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
J - Other -178 10,225 -1.71 86.68 -15,429 886,303
2022-02-04 2022-02-02 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -1,231 15,501 -7.36 61.04 -75,140 946,181
2022-02-04 2022-02-02 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 3,120 16,732 22.92
2022-01-05 2022-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -403 879 -31.44
2022-01-05 2022-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -780 407 -65.71
2022-01-05 2022-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 403 403
2022-01-05 2022-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 403 13,209 3.15
2022-01-05 2022-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 780 13,209 6.28
2021-07-02 2021-07-01 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
J - Other -19,499 0 -100.00
2021-07-02 2021-07-01 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -7,070 12,429 -36.26 76.87 -543,471 955,417
2021-07-02 2021-07-01 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
J - Other 19,499 19,499
2021-03-12 2021-03-10 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -5,200 0 -100.00 71.10 -369,720
2021-02-05 2021-02-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -2,822 5,200 -35.18 69.19 -195,254 359,788
2021-02-05 2021-02-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 4,505 8,022 128.09
2021-01-06 2021-01-04 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -1,126 0 -100.00
2021-01-06 2021-01-04 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 1,126 3,517 47.09
2020-12-16 2020-12-15 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,000 2,391 -45.55 62.71 -125,420 149,940
2020-02-07 2020-02-05 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 1,282 1,282
2020-02-07 2020-02-05 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -2,646 4,391 -37.60 58.65 -155,188 257,532
2020-02-07 2020-02-05 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 5,630 7,037 400.14
2020-01-03 2020-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -1,407 0 -100.00
2020-01-03 2020-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 1,407 1,407
2019-12-12 2019-12-12 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -4,262 0 -100.00 70.39 -300,002
2019-02-08 2019-02-06 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 1,187 1,187
2019-02-08 2019-02-06 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -2,467 4,262 -36.66 56.44 -139,237 240,547
2019-02-08 2019-02-06 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 5,383 6,729 399.93
2019-01-02 2019-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -1,346 0 -100.00
2019-01-02 2019-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 1,346 1,346
2018-03-19 2018-03-15 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -1,430 0 -100.00 63.63 -90,991
2018-02-08 2018-02-06 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -673 1,430 -32.00 80.20 -53,975 114,686
2018-02-08 2018-02-06 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 1,275 2,103 153.99
2018-02-02 2018-02-01 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 1,126 1,126
2018-01-02 2018-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -828 0 -100.00
2018-01-02 2018-01-02 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 828 828
2017-12-01 2017-11-14 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -3,677 408 -90.01 62.36 -229,298 25,443
2017-11-13 2017-11-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -1,182 0 -100.00 71.07 -84,005
2017-05-10 2017-05-09 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,500 1,182 -67.90 52.05 -130,125 61,523
2017-02-07 2017-02-01 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 1,407 1,407
2017-01-05 2017-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
M - Exercise -667 0 -100.00
2017-01-05 2017-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -255 3,682 -6.48 58.58 -14,938 215,692
2017-01-05 2017-01-03 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 667 3,937 20.40
2016-08-16 2016-08-12 4 PLPC PREFORMED LINE PRODUCTS CO
Employee stock option (right to buy)
M - Exercise -2,000 0 -100.00
2016-08-16 2016-08-12 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -2,000 3,270 -37.95 45.10 -90,200 147,477
2016-08-16 2016-08-12 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 2,000 5,270 61.16 35.50 71,000 187,085
2016-03-22 2016-02-03 4/A PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 1,346 1,346
2016-03-22 2016-01-04 4/A PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -101 3,270 -3.00 42.21 -4,263 138,027
2016-03-22 2015-02-24 4/A PLPC PREFORMED LINE PRODUCTS CO
Restricted stock units
A - Award 828 828
2016-01-06 2016-01-04 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -101 6,606 -1.51 42.21 -4,263 278,839
2015-12-09 2015-12-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
D - Sale to Issuer -308 10,366 -2.89 40.83 -12,576 423,244
2015-12-02 2015-11-30 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
F - Taxes -592 10,674 -5.25 41.50 -24,568 442,971
2015-12-02 2015-11-30 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 1,800 11,266 19.02 41.50 74,700 467,539
2015-03-26 2015-03-26 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -284 9,466 -2.91 45.39 -12,891 429,662
2015-02-26 2015-02-24 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 2,513 12,666 24.75
2014-03-24 2014-03-20 4 plpc PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -303 12,899 -2.30 62.99 -19,086 812,508
2014-02-25 2014-02-24 4 plpc PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 3,336 17,890 22.92
2013-11-13 2013-11-12 4 plpc PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -1,000 14,554 -6.43 78.91 -78,910 1,148,456
2013-05-08 2013-05-08 4 PLPC PREFORMED LINE PRODUCTS CO
Employee stock option (right to buy)
M - Exercise -3,000 2,000 -60.00 35.50 -106,500 71,000
2013-05-08 2013-05-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -3,000 20,862 -12.57 76.98 -230,940 1,605,957
2013-05-08 2013-05-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
M - Exercise 3,000 23,862 14.38 35.50 106,500 847,101
2013-02-28 2013-02-26 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 3,760 20,862 21.99
2012-08-31 2012-08-30 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 17,102 -1.16 58.61 -11,722 1,002,348
2012-08-31 2012-08-29 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 17,302 -1.14 58.11 -11,622 1,005,419
2012-08-28 2012-08-24 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 17,502 -1.13 57.40 -11,480 1,004,615
2012-08-24 2012-08-23 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -400 17,702 -2.21 58.13 -23,252 1,029,017
2012-07-31 2012-03-05 4/A PLPC PREFORMED LINE PRODUCTS CO
Common Shares, $2 par value
A - Award 3,433 18,102 23.40
2012-06-12 2012-06-08 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 17,860 -1.11 54.21 -10,842 968,191
2012-06-07 2012-06-07 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -400 18,060 -2.17 54.33 -21,732 981,200
2012-06-07 2012-06-06 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 18,460 -1.07 52.83 -10,566 975,242
2012-06-07 2012-06-05 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
S - Sale -200 18,660 -1.06 51.18 -10,235 954,926
2012-03-07 2012-03-05 4 PLPC PREFORMED LINE PRODUCTS CO
Common shares, $2 par value
A - Award 3,191 18,860 20.37
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)