What SEC filings does Preformed Line Products Company submit to the SEC?

Preformed Line Products Company (PLPC) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about PLPC?

A Form 4 for PLPC discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Preformed Line Products Company?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for PLPC?

The 10-K is Preformed Line Products Company's annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all PLPC SEC filings directly on EDGAR?

You can view all historical Preformed Line Products Company filings on the SEC EDGAR company page for PLPC. Each filing card on this page links directly to the original SEC document.

How often does Preformed Line Products Company file with the SEC?

Preformed Line Products Company files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling PLPC shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

PLPC SEC Filing News — Preformed Line Products Company

Latest SEC filings for Preformed Line Products Company (PLPC) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-09.

Preformed Line Products Company designs and manufactures products and systems employed in the construction and maintenance of overhead, ground-mounted, and underground networks in the United States, the Americas, Europe, the Middle East, Africa, and the Asia-Pacific. The company offers energy products for supporting, protecting, terminating, and splicing transmission, and distribution lines, as well as bolted, welded, and compressed connectors for substations; optical ground wire and all dielect…

Sector: Industrials Industry: Electrical Equipment & Parts Market Cap: $1.7B CIK: 80035

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for PLPC currently lean bearish. Of the 20 filing records displayed, 2 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

PLPC Filing Activity Snapshot 2026-03-16 — 2026-09-09

Insider Transactions (Form 4)

0 buys vs 2 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$4.45M

RUHLMAN RANDALL M · 2026-08-19

10,000 shares · Form 144

Form 144 Notices

Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 13 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 13 filings in this group are Form 4s for Preformed Line Products Company.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 13 insider filings shown, the breakdown is 6 disposition to issuer, 3 gift, 2 open-market sale, 1 option exercise and 1 other reported transaction. 2 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Disposition to issuer ×6: Shares were surrendered to or repurchased by the issuer rather than sold to other investors.
Gift ×3: Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Open-market sale ×2: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Option exercise ×1: The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Other reported transaction ×1: The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.

Form 4 Open-market sale Insider Selling 2026-09-09

PLPC insider RUHLMAN RANDALL M (10% Owner) sold 5,142 shares (~$2.10M)

RUHLMAN RANDALL M, listed as 10% Owner at PREFORMED LINE PRODUCTS CO, reported an open-market sale of 5,142 PLPC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	142	$400.04	$56.8K
`S`	Open-market sale	5,000	$407.78	$2.04M

Filing: Form 4 (Insider Transaction) Insider: RUHLMAN RANDALL M (10% Owner) Shares: 5,142 Est. Value: $2.10M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-06

PLPC insider CORLETT GLEN E (Director) sold 2,000 shares (~$914.0K)

CORLETT GLEN E, listed as Director at PREFORMED LINE PRODUCTS CO, reported an open-market sale of 2,000 PLPC shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	2,000	$457.02	$914.0K

Filing: Form 4 (Insider Transaction) Insider: CORLETT GLEN E (Director) Shares: 2,000 Est. Value: $914.0K

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-08-04

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

RUHLMAN ROBERT G (Director, Executive Chairman, 10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	18,000	—	—
`G`	Gift	18,000	—	—

Filing: Form 4 (Insider Transaction) Insider: RUHLMAN ROBERT G (Director, Executive Chairman, 10% Owner) Shares: 36,000

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-08-04

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

CROSS MAEGAN ADAMS RUHLMAN (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	18,000	—	—

Filing: Form 4 (Insider Transaction) Insider: CROSS MAEGAN ADAMS RUHLMAN (Director) Shares: 18,000

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-08-04

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Ruhlman Jon Ryan (Director, President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	18,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Ruhlman Jon Ryan (Director, President) Shares: 18,000

View on SEC EDGAR → Open Filing Document →

Form 4 Other reported transaction Tax / Compensation Filing 2026-08-04

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

RUHLMAN RANDALL M (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`J`	Other transaction	9,121	$358.15	$3.27M
`J`	Other transaction	9,121	$358.15	$3.27M

Filing: Form 4 (Insider Transaction) Insider: RUHLMAN RANDALL M (10% Owner) Shares: 18,242

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-06-12

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Klaus Andrew S (CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	635	$362.22	$230.0K

Filing: Form 4 (Insider Transaction) Insider: Klaus Andrew S (CFO) Shares: 635

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-06-11

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	1,000	$360.68	$360.7K

Filing: Form 4 (Insider Transaction) Insider: Ruhlman Jon Ryan (Director, President) Shares: 1,000

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-06-10

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Morcos Assaad A (VP, US Manufacturing) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	1,000	$132.40	$132.4K
`D`	Disposition to issuer	1,000	$360.91	$360.9K
`M`	Option exercise derivative · Employee stock option (right to buy)	1,000	$132.40	$132.4K

Filing: Form 4 (Insider Transaction) Insider: Morcos Assaad A (VP, US Manufacturing) Shares: 2,000

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-06-10

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

O'Shaughnessy Timothy (V.P. Human Resources) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	750	$360.91	$270.7K

Filing: Form 4 (Insider Transaction) Insider: O'Shaughnessy Timothy (V.P. Human Resources) Shares: 750

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-06-10

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Olenik John J (VP-Research & Engineering) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	1,000	$360.91	$360.9K

Filing: Form 4 (Insider Transaction) Insider: Olenik John J (VP-Research & Engineering) Shares: 1,000

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-06-09

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

Hofstetter John M (Executive Vice President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	3,446	$358.45	$1.24M

Filing: Form 4 (Insider Transaction) Insider: Hofstetter John M (Executive Vice President) Shares: 3,446

View on SEC EDGAR → Open Filing Document →

Form 4 Disposition to issuer Tax / Compensation Filing 2026-03-16

PLPC insider Form 4 filed for equity award, exercise, or tax withholding

CORLETT GLEN E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were surrendered to or repurchased by the issuer rather than sold to other investors.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`D`	Disposition to issuer	400	$260.24	$104.1K

Filing: Form 4 (Insider Transaction) Insider: CORLETT GLEN E (Director) Shares: 400

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Preformed Line Products Company has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-19

PLPC Form 144 filed for proposed insider sale by RUHLMAN RANDALL M (10,000 shares) ~$4.45M

RUHLMAN RANDALL M filed a Form 144 with the SEC indicating intent to sell PLPC (PREFORMED LINE PRODUCTS CO) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: RUHLMAN RANDALL M Shares: 10,000 Est. Value: $4.45M

View on SEC EDGAR → Open Filing Document →

Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Preformed Line Products Company. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-07-29

PLPC filed 8-K — material company event

PREFORMED LINE PRODUCTS CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-07-27

PLPC filed 8-K — material company event

PREFORMED LINE PRODUCTS CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-05-04

PLPC filed 8-K — material company event

PREFORMED LINE PRODUCTS CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-04-29

PLPC filed 8-K — material company event

PREFORMED LINE PRODUCTS CO filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 2 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 2 quarterly reports (10-Q) for Preformed Line Products Company.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-07-30

PLPC filed Quarterly Report (10-Q)

PREFORMED LINE PRODUCTS CO filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

Form 10-Q Quarterly Report 2026-04-30

PLPC filed Quarterly Report (10-Q)

PREFORMED LINE PRODUCTS CO filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Preformed Line Products Company's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on PLPC. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — PLPC SEC Filings

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PLPC Full Analysis

Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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