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Nasdaq · CIK 0000080035

PLPC PREFORMED LINE PRODUCTS CO

Insider trading from SEC Form 4. Last filing 34 d ago. Close $397.25 on Oct 9, 2026, +114% from the 52-week low and -17% from the high.

In brief

PREFORMED LINE PRODUCTS CO (PLPC) has 81 SEC Form 4 filings on file from 14 insiders, the latest filed on Sep 9, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 2 open-market sells worth $3.0M, net -$3.0M.

2 open-market trades have been scored at PLPC. The newest: Randall M Ruhlman (10% owner) sold $2.1M of stock on Sep 4, 2026, filed Sep 9, 2026, scored 37 (weak).

1 Form 144 notice of planned sales is on file, the latest filed Aug 19, 2026.

Last 90 days

Net insider value
-$3.0M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
2
$3.0M by 2 insiders
Insiders on file
14
with a Form 4 at this company

Price and insider trades, last year

PLPCOct 9, 2026 · close 397.25

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at PREFORMED LINE PRODUCTS CO, scored.

ScoreInsiderValueHoldingsPrice contextFiled
37WeakRandall M Ruhlman
owner
sell
$2.1M
5,142 shares
-1%-
59ModerateGlen E Corlett
director
sell
$914k
2,000 shares
-100%+207% from low0% from high

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Aug 19, 2026 RUHLMAN RANDALL M
10% Stockholder
10,000
0.20% of outstanding
$4.4MAug 19, 2026$3.3M

Transactions

The newest 50 of 136 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Sep 4, 2026Randall M Ruhlman
owner
SOpen-market sale
Common shares, $2 par value
-142$400.04$57k451,60934 d ago
Sep 8, 2026Randall M Ruhlman
owner
SOpen-market sale
Common shares, $2 par value
-5,000$407.78$2.0M446,60934 d ago
Aug 5, 2026Glen E Corlett
director
SOpen-market sale
Common shares, $2 par valueindirect: by IRA
-2,000$457.02$914k0Aug 6, 2026
Aug 3, 2026Randall M Ruhlman
owner
JOther
Common shares, $2 par value
-9,121$358.15$3.3M451,751Aug 4, 2026
Jun 9, 2026Jon Ryan Ruhlman
President
GGift
Common Shares, $2 par value per shareindirect: by Trust
+18,000$0.00$018,000Aug 4, 2026
Jun 9, 2026Robert G Ruhlman
Executive Chairman
GGift
Common shares, $2 par value
-18,000$0.00$0267,673Aug 4, 2026
Jun 9, 2026Maegan Adams Ruhlman Cross
director
GGift
Common Shares, $2 par value per shareindirect: by Trust
+18,000$0.00$018,000Aug 4, 2026
Jun 9, 2026Robert G Ruhlman
Executive Chairman
GGift
Common shares, $2 par value
-18,000$0.00$0249,673Aug 4, 2026
Aug 3, 2026Randall M Ruhlman
owner
JOther
Common shares, $2 par valueindirect: by trust
+9,121$358.15$3.3M414,321Aug 4, 2026
Jun 12, 2026Andrew S Klaus
CFO
DDisposition to issuer
Common shares, $2 par value
-635$362.22$230k13,918Jun 12, 2026
Jun 11, 2026Jon Ryan Ruhlman
President
DDisposition to issuer
Common shares, $2 par value
-1,000$360.68$361k2,784Jun 11, 2026
Jun 10, 2026Assaad A Morcos
VP, US Manufacturing
MOption exercise
Common Shares, $2 par value per share
+1,000$132.40$132k1,000Jun 10, 2026
Jun 10, 2026John J Olenik
VP-Research & Engineering
DDisposition to issuer
Common shares, $2 par value
-1,000$360.91$361k6,506Jun 10, 2026
Jun 10, 2026Timothy O'Shaughnessy
V.P. Human Resources
DDisposition to issuer
Common shares, $2 par value
-750$360.91$271k3,250Jun 10, 2026
Jun 10, 2026Assaad A Morcos
VP, US Manufacturing
DDisposition to issuer
Common Shares, $2 par value per share
-1,000$360.91$361k0Jun 10, 2026
Jun 10, 2026Assaad A Morcos
VP, US Manufacturing
MOption exercise
Employee stock option (right to buy)derivative
-1,000$132.40$132k3,750Jun 10, 2026
Jun 8, 2026John M Hofstetter
Executive Vice President
DDisposition to issuer
Common shares, $2 par value
-3,446$358.45$1.2M0Jun 9, 2026
Mar 12, 2026Glen E Corlett
director
DDisposition to issuer
Common shares, $2 par value
-400$260.24$104k5,611Mar 16, 2026
Mar 13, 2026Robert G Ruhlman
Executive Chairman
DDisposition to issuer
Common shares, $2 par value
-2,500$259.73$649k285,673Mar 13, 2026
Mar 10, 2026Assaad A Morcos
VP, US Manufacturing
MOption exercise
Common Shares, $2 par value per share
+1,750$132.40$232k1,750Mar 13, 2026
Mar 12, 2026John J Olenik
VP-Research & Engineering
DDisposition to issuer
Common shares, $2 par valueindirect: by 401(k) plan
-752$260.84$196k0Mar 13, 2026
Mar 10, 2026Assaad A Morcos
VP, US Manufacturing
DDisposition to issuer
Common Shares, $2 par value per share
-1,750$260.34$456k0Mar 13, 2026
Mar 10, 2026Assaad A Morcos
VP, US Manufacturing
MOption exercise
Employee stock option (right to buy)derivative
-1,750$132.40$232k4,750Mar 13, 2026
Mar 10, 2026C Sunkle David
director
DDisposition to issuer
Common shares, $2 par value
-1,600$260.34$417k1,607Mar 11, 2026
Mar 10, 2026John M Hofstetter
Executive Vice President
DDisposition to issuer
Common shares, $2 par value
-6,000$260.34$1.6M3,446Mar 11, 2026
Mar 10, 2026Andrew S Klaus
CFO
DDisposition to issuer
Common shares, $2 par value
-2,365$260.34$616k14,553Mar 11, 2026
Mar 10, 2026Dennis F McKenna
CEO
DDisposition to issuer
Common shares, $2 par value
-7,887$260.34$2.1M0Mar 11, 2026
Mar 10, 2026Timothy O'Shaughnessy
V.P. Human Resources
DDisposition to issuer
Common shares, $2 par value
-1,244$260.34$324k4,000Mar 11, 2026
Mar 10, 2026Caroline Saylor Vaccariello
General Counsel&Corp Secretary
DDisposition to issuer
Common shares, $2 par value
-1,547$260.34$403k1,908Mar 11, 2026
Mar 10, 2026Jon Ryan Ruhlman
President
DDisposition to issuer
Common shares, $2 par value
-2,000$260.34$521k3,784Mar 11, 2026
Feb 4, 2026Andrew S Klaus
CFO
AGrant or award
Common shares, $2 par value
+1,785$0.00$018,414Feb 6, 2026
Feb 4, 2026William Koh
VP of Asia Pacific Region
AGrant or award
Restricted stock unitsderivative
+407$0.00$0407Feb 6, 2026
Feb 4, 2026Dennis F McKenna
CEO
AGrant or award
Common shares, $2 par value
+2,677$0.00$010,110Feb 6, 2026
Feb 4, 2026Assaad A Morcos
VP, US Manufacturing
AGrant or award
Restricted stock unitsderivative
+407$0.00$0407Feb 6, 2026
Feb 4, 2026Timothy O'Shaughnessy
V.P. Human Resources
AGrant or award
Common shares, $2 par value
+1,227$0.00$06,285Feb 6, 2026
Feb 4, 2026John J Olenik
VP-Research & Engineering
AGrant or award
Common shares, $2 par value
+1,160$0.00$08,493Feb 6, 2026
Feb 4, 2026Robert G Ruhlman
Executive Chairman
AGrant or award
Common shares, $2 par value
+13,386$0.00$0294,097Feb 6, 2026
Feb 4, 2026Jon Ryan Ruhlman
President
AGrant or award
Common shares, $2 par value
+1,785$0.00$07,278Feb 6, 2026
Feb 4, 2026Caroline Saylor Vaccariello
General Counsel&Corp Secretary
AGrant or award
Common shares, $2 par value
+1,517$0.00$04,733Feb 6, 2026
Feb 4, 2026John M Hofstetter
Executive Vice President
AGrant or award
Common shares, $2 par value
+1,696$0.00$010,870Feb 6, 2026
Feb 4, 2026John M Hofstetter
Executive Vice President
FTax withholding
Common shares, $2 par value
-1,424$245.42$349k9,446Feb 6, 2026
Feb 4, 2026Andrew S Klaus
CFO
FTax withholding
Common shares, $2 par value
-1,496$245.42$367k16,918Feb 6, 2026
Feb 4, 2026Dennis F McKenna
CEO
FTax withholding
Common shares, $2 par value
-2,223$245.42$546k7,887Feb 6, 2026
Feb 4, 2026Timothy O'Shaughnessy
V.P. Human Resources
FTax withholding
Common shares, $2 par value
-1,041$245.42$255k5,244Feb 6, 2026
Feb 4, 2026John J Olenik
VP-Research & Engineering
FTax withholding
Common shares, $2 par value
-987$245.42$242k7,506Feb 6, 2026
Feb 4, 2026Jon Ryan Ruhlman
President
FTax withholding
Common shares, $2 par value
-1,494$245.42$367k5,784Feb 6, 2026
Feb 4, 2026Robert G Ruhlman
Executive Chairman
FTax withholding
Common shares, $2 par value
-5,924$245.42$1.5M288,173Feb 6, 2026
Feb 4, 2026Caroline Saylor Vaccariello
General Counsel&Corp Secretary
FTax withholding
Common shares, $2 par value
-1,278$245.42$314k3,455Feb 6, 2026
Feb 4, 2026John M Hofstetter
Executive Vice President
AGrant or award
Restricted stock unitsderivative
+591$0.00$0591Feb 6, 2026
Feb 4, 2026Andrew S Klaus
CFO
AGrant or award
Restricted stock unitsderivative
+693$0.00$0693Feb 6, 2026
50 of 136 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about PLPC

Answered from the filings on this page, as of the latest one.

Are insiders buying PLPC?

As of Sep 9, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 2 open-market sells worth $3.0M by 2 insiders at PREFORMED LINE PRODUCTS CO in the last 90 days, net -$3.0M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.

Who was the last insider to trade PLPC on the open market?

Randall M Ruhlman (10% owner) sold $2.1M of PLPC on Sep 4, 2026 and filed the Form 4 on Sep 9, 2026. InsiderTell scored 37 (weak).

How many insiders file Form 4 at PREFORMED LINE PRODUCTS CO?

14 people have filed a Form 4 at PREFORMED LINE PRODUCTS CO, among them Glen E Corlett (director), Maegan Adams Ruhlman Cross (director), C Sunkle David (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

PLPC insider trading: PREFORMED LINE PRODUCTS CO | InsiderTell