Preformed Line (PLPC) counsel reports 1,547-share disposition to issuer

Rhea-AI Filing Summary

Preformed Line Products’ General Counsel and Corporate Secretary, Caroline Saylor Vaccariello, reported a disposition of common shares back to the company. On 2026-03-10, she disposed of 1,547 common shares at $260.34 per share in a transaction coded as a disposition to the issuer.

Following this transaction, she directly holds 1,908 common shares. She also holds restricted stock units that can convert into 966, 995, and 564 common shares, all at a conversion price of $0.00 per share, which vest three years from their grant dates. In addition, she has indirect ownership of 479 common shares through a 401(k) plan and 16,857 common shares through a rabbi trust for a deferred compensation plan.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Vaccariello Caroline Saylor

(Last) (First) (Middle)

660 BETA DRIVE

(Street)

CLEVELAND OH 44143

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PREFORMED LINE PRODUCTS CO [ PLPC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel&Corp Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common shares, $2 par value	03/10/2026		D		1,547	D	$260.34	1,908	D
Common shares, $2 par value								479	I	by 401(k) plan
Common shares, $2 par value								16,857	I	by rabbi trust for Deferred Compensation Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted stock units	$0							(1)	(1)	Common shares, $2 par value	966		966	D
Restricted stock units	$0							(1)	(1)	Common shares, $2 par value	995		995	D
Restricted stock units	$0							(1)	(1)	Common shares, $2 par value	564		564	D

Explanation of Responses:

1. Restricted stock units vest 3 years from the date of grant.

Remarks:

	/s/ Caroline S. Vaccariello, by power of attorney	03/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did PLPC’s Caroline Saylor Vaccariello report?

Caroline Saylor Vaccariello reported disposing of 1,547 Preformed Line Products common shares back to the issuer at $260.34 per share. The transaction was coded as a disposition to the issuer, not an open-market sale, and occurred on 2026-03-10.

How many PLPC shares does Caroline Saylor Vaccariello hold after this Form 4?

After the reported disposition, she directly holds 1,908 common shares of Preformed Line Products. She also has indirect holdings of 479 common shares via a 401(k) plan and 16,857 common shares through a rabbi trust for a deferred compensation plan.

What restricted stock units does the PLPC General Counsel hold?

She holds three blocks of restricted stock units referencing 966, 995, and 564 underlying common shares at a conversion price of $0.00. According to the disclosure, these restricted stock units vest three years from their respective grant dates before they can convert into common shares.

Was the PLPC insider transaction an open-market sale of shares?

No, the transaction was coded as a disposition to the issuer, not an open-market sale. This means the 1,547 common shares were returned to Preformed Line Products rather than sold on a stock exchange to outside investors.

What role does Caroline Saylor Vaccariello hold at Preformed Line Products?

Caroline Saylor Vaccariello serves as General Counsel and Corporate Secretary at Preformed Line Products. Her Form 4 filing details her direct and indirect holdings of common shares, along with restricted stock units that vest three years from their grant dates.

How do the PLPC restricted stock units for the General Counsel vest?

The restricted stock units vest three years from the date of grant, based on the footnote disclosure. Once vested, each unit can convert into one common share of Preformed Line Products at a conversion price of $0.00 per share.