Viskase (NASDAQ: ENZN) officer files initial beneficial ownership

Rhea-AI Filing Summary

Viskase Holdings, Inc. officer Stender Mackenzie has filed an initial statement of beneficial ownership as a company insider. This filing lists Mackenzie as an officer but shows no reported share purchases, sales, or other transactions, and no derivative positions in the data provided.

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

Stender Mackenzie

(Last) (First) (Middle)

333 EAST BUTTERFIELD ROAD, SUITE 400

(Street)

LOMBARD ILLINOIS 60148

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/26/2026

3. Issuer Name and Ticker or Trading Symbol
Viskase Holdings, Inc. [ ENZND ]

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Interim Chief Financial Officer. Exhibit 24.1 - Power of Attorney

No securities are beneficially owned.

	/s/ Mackenzie Stender	03/26/2026
	** 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 5 (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.
* Form 3: SEC 1473 (03-26)

FAQ

What does the Viskase (ENZN) Form 3 filing for Stender Mackenzie show?

The Form 3 shows that Stender Mackenzie is an officer of Viskase Holdings, Inc. It is an initial beneficial ownership report and, in the data provided, does not list any share purchases, sales, or derivative positions for this insider.

Are there any buy or sell transactions reported for ENZN insider Stender Mackenzie?

No, the filing data shows zero buy, sell, acquire, or dispose transactions for Stender Mackenzie. All transaction counts, including exercises, gifts, tax withholding, and restructurings, are listed as zero in the transaction summary section.

Does the Viskase (ENZN) Form 3 show any derivative positions for Stender Mackenzie?

No, the derivative section in the data provided is empty. The derivativeSummary shows no remaining options, warrants, or other derivative securities reported for Stender Mackenzie in this initial ownership statement.

What is the net buy/sell direction in the ENZN Form 3 for Stender Mackenzie?

The net buy/sell direction is listed as neutral in the transaction summary. This reflects that there are no reported purchases, sales, or other equity transactions for Stender Mackenzie in the information provided with this initial filing.

What insider role does Stender Mackenzie have at Viskase Holdings (ENZN)?

The filing identifies Stender Mackenzie as an officer of Viskase Holdings, Inc. The specific title is referenced as “See Remarks” in the data, indicating an officer position without detailing the exact role in the excerpt provided.