Syntec Optics director awarded 24,646 RSUs

Syntec Optics Holdings director Brent D. Rosenthal received an equity award of 24,646 Restricted Stock Units (RSUs).

Rhea-AI Filing Summary

Syntec Optics Holdings director Brent D. Rosenthal received an equity award of 24,646 Restricted Stock Units (RSUs). The award was recorded as a grant or other acquisition at a price of $0.00 per unit, increasing his directly owned RSUs to 101,966.

According to the footnotes, each RSU represents a contingent right to receive one Syntec Optics Class A common share at $4.06. The RSUs are fully vested, and the related shares have been provided to the transfer agent, subject to transfer restrictions and the company’s trading policy. Total ownership includes 25,000 shares and 101,966 RSUs.

Insider Trade Summary

Grant/Award: 24,646 shares

Grant/Award 1 txn

Insider Rosenthal Brent D

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	24,646	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 101,966 contracts (Direct)

Footnotes (2)

1. F1. Each Restricted Stock Unit represents a contingent right to receive one Syntec Optics Holdings, Inc. Class A common share at $4.06. Fully vested. The shares provided to the transfer agent; subject to restrictions on transfer and trading policy.
2. F2. Total ownership includes 25,000 shares and 101,966 RSUs.

FAQ

What insider transaction did Syntec Optics (OPTX) report for Brent D. Rosenthal?

Syntec Optics reported that director Brent D. Rosenthal received a grant of 24,646 Restricted Stock Units. These RSUs are fully vested, recorded at $0.00 per unit, and each represents a contingent right to receive one Class A common share at $4.06.

How many Restricted Stock Units does Brent D. Rosenthal hold after this OPTX Form 4?

After this grant, Brent D. Rosenthal directly holds 101,966 Restricted Stock Units. A footnote explains that total ownership consists of 25,000 shares plus these 101,966 RSUs, reflecting both his stock and equity-based awards in Syntec Optics Holdings.

What does each Syntec Optics RSU granted to Brent Rosenthal represent?

Each Restricted Stock Unit represents a contingent right to receive one Syntec Optics Class A common share at $4.06. The filing notes that these RSUs are fully vested, and the corresponding shares have been delivered to the transfer agent with transfer and trading restrictions.

Is the RSU award to Syntec Optics director Brent Rosenthal fully vested?

Yes, the filing states the Restricted Stock Units awarded to Brent Rosenthal are fully vested. Although vested, the related shares are held by the transfer agent and remain subject to transfer restrictions and the company’s trading policy on insider transactions.

What is included in Brent Rosenthal’s total ownership in Syntec Optics (OPTX)?

A footnote explains that Brent Rosenthal’s total ownership includes 25,000 Syntec Optics shares and 101,966 Restricted Stock Units. This combines his direct shareholdings with his vested RSU positions as reported in the latest Form 4 filing.

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Accepted by SEC EDGAR 02/23/2026 - 11:45 AM Learn about SEC filing dates

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Rosenthal Brent D

(Last) (First) (Middle)

C/O SYNTEC OPTICS HOLDINGS, INC.

515 LEE RD.

(Street)

ROCHESTER NY 14606

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SYNTEC OPTICS HOLDINGS, INC. [ OPTX ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/20/2026

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

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	(1)	02/20/2026		A		24,646		(1)	(1)	CLA	24,646	(1)	101,966(2)	D

Explanation of Responses:

1. Each Restricted Stock Unit represents a contingent right to receive one Syntec Optics Holdings, Inc. Class A common share at $4.06. Fully vested. The shares provided to the transfer agent; subject to restrictions on transfer and trading policy.

2. Total ownership includes 25,000 shares and 101,966 RSUs.

	/s/ Rosenthal Brent D	02/23/2026
	** 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.