ENZN

Viskase Holdings, Inc.

SEC CIK 727510
$5.75 +8,114.3% · 90 days
90-day buys
$0
0 open-market
90-day sells
$0
0 open-market
Net insider flow
+$0
Net buying
Filings shown
83
Most recent
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At a glance

Insiders at ENZN have made no open-market trades in the last 90 days — the activity below is grants, option exercises, and other routine filings.

Largest recent trade: Icahn Carl C, ENZN's 10% owner, spent $281.1K of their own money on 694,023 shares at $0, growing their stake 12%.

Most active filer: Couchman Jonathan, with 63 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for ENZN, newest first
View on SEC EDGAR ↗
ENZN
Buy READ RANDOLPH C · Director · Open-market purchase · filed Jun 16, 2023 ΔOwn +73%

Read Randolph C, ENZN's Director, spent $11.9K of their own money on 84,550 shares at $0, growing their stake 73%.

+$11.9K
84,550 sh @ $0
ENZN
Buy READ RANDOLPH C · Director · Open-market purchase · filed Jun 16, 2023 ΔOwn +15%

Read Randolph C, ENZN's Director, spent $2K of their own money on 15,000 shares at $0, growing their stake 15%.

+$2K
15,000 sh @ $0
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ENZN
Buy READ RANDOLPH C · Director · Open-market purchase · filed Nov 18, 2020 ΔOwn +99%

Read Randolph C, ENZN's Director, spent $7.9K of their own money on 50,000 shares at $0, growing their stake 99%.

+$7.9K
50,000 sh @ $0
ENZN
Buy READ RANDOLPH C · Director · Open-market purchase · filed Nov 18, 2020 ΔOwn NEW

Read Randolph C, ENZN's Director, spent $7.6K of their own money on 50,450 shares at $0, opening a brand-new position.

+$7.6K
50,450 sh @ $0
ENZN
Buy Bleznick Jordan · Director · Open-market purchase · filed Nov 17, 2020 ΔOwn NEW

Bleznick Jordan, ENZN's Director, spent $15.4K of their own money on 100,000 shares at $0, opening a brand-new position.

+$15.4K
100,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Aug 6, 2020 ΔOwn +32%

Couchman Jonathan, ENZN's 10% owner, spent $101.3K of their own money on 506,292 shares at $0, growing their stake 32%.

+$101.3K
506,292 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Mar 27, 2020 ΔOwn +34%

Couchman Jonathan, ENZN's 10% owner, spent $22.5K of their own money on 160,785 shares at $0, growing their stake 34%.

+$22.5K
160,785 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Mar 27, 2020 ΔOwn +999%

Couchman Jonathan, ENZN's 10% owner, spent $65.7K of their own money on 469,551 shares at $0, growing their stake 16037%.

+$65.7K
469,551 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Mar 27, 2020 ΔOwn +999%

Couchman Jonathan, ENZN's 10% owner, spent $375 of their own money on 2,678 shares at $0, growing their stake 1071%.

+$375
2,678 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Mar 27, 2020 ΔOwn +1.3%

Couchman Jonathan, ENZN's 10% owner, spent $2.7K of their own money on 19,709 shares at $0, growing their stake 1%.

+$2.7K
19,709 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019 ΔOwn +0.3%

Couchman Jonathan, ENZN's 10% owner, spent $3.9K of their own money on 15,500 shares at $0.

+$3.9K
15,500 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019 ΔOwn +0.2%

Couchman Jonathan, ENZN's 10% owner, spent $2.5K of their own money on 10,000 shares at $0.

+$2.5K
10,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019

Couchman Jonathan, ENZN's 10% owner, spent $125 of their own money on 500 shares at $0.

+$125
500 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019 ΔOwn +0.2%

Couchman Jonathan, ENZN's 10% owner, spent $2.5K of their own money on 10,000 shares at $0.

+$2.5K
10,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019 ΔOwn +0.6%

Couchman Jonathan, ENZN's 10% owner, spent $2.5K of their own money on 10,000 shares at $0, growing their stake 1%.

+$2.5K
10,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Feb 14, 2019 ΔOwn +0.3%

Couchman Jonathan, ENZN's 10% owner, spent $1.3K of their own money on 5,000 shares at $0.

+$1.3K
5,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019

Couchman Jonathan, ENZN's 10% owner, spent $510 of their own money on 2,000 shares at $0.

+$510
2,000 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +0.1%

Couchman Jonathan, ENZN's 10% owner, spent $638 of their own money on 2,500 shares at $0.

+$638
2,500 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +0.1%

Couchman Jonathan, ENZN's 10% owner, spent $1.1K of their own money on 4,500 shares at $0.

+$1.1K
4,500 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +25%

Couchman Jonathan, ENZN's 10% owner, spent $84.1K of their own money on 312,523 shares at $0, growing their stake 25%.

+$84.1K
312,523 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +21%

Couchman Jonathan, ENZN's 10% owner, spent $50.4K of their own money on 213,189 shares at $0, growing their stake 21%.

+$50.4K
213,189 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +1.5%

Couchman Jonathan, ENZN's 10% owner, spent $3.5K of their own money on 15,261 shares at $0, growing their stake 1%.

+$3.5K
15,261 sh @ $0
ENZN
Buy COUCHMAN JONATHAN · 10% Owner · Open-market purchase · filed Jan 9, 2019 ΔOwn +0.2%

Couchman Jonathan, ENZN's 10% owner, spent $550 of their own money on 2,500 shares at $0.

+$550
2,500 sh @ $0
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About ENZN insider activity

This page tracks every recent Form 4 filed for Viskase Holdings, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is ENZN insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Viskase Holdings, Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.