ENZN
Couchman Jonathan, ENZN's 10% owner, spent $8.8K of their own money on 40,050 shares at $0, growing their stake 4%.
+$8.8K
40,050 sh @ $0
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
78
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 61 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for ENZN, newest firstENZN
Couchman Jonathan, ENZN's 10% owner, spent $3.3K of their own money on 15,000 shares at $0, growing their stake 2%.
+$3.3K
15,000 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $525 of their own money on 2,500 shares at $0.
+$525
2,500 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $21K of their own money on 100,000 shares at $0, growing their stake 12%.
+$21K
100,000 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $21K of their own money on 100,000 shares at $0, growing their stake 14%.
+$21K
100,000 sh @ $0
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ENZN
Couchman Jonathan, ENZN's 10% owner, spent $17.5K of their own money on 67,200 shares at $0, growing their stake 1%.
+$17.5K
67,200 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $2.3K of their own money on 8,800 shares at $0.
+$2.3K
8,800 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $5.3K of their own money on 20,600 shares at $0.
+$5.3K
20,600 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $936 of their own money on 3,671 shares at $0.
+$936
3,671 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $98.9K of their own money on 384,100 shares at $0, growing their stake 9%.
+$98.9K
384,100 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $2.5K of their own money on 9,500 shares at $0.
+$2.5K
9,500 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $10.5K of their own money on 40,316 shares at $0, growing their stake 1%.
+$10.5K
40,316 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $2.1K of their own money on 8,255 shares at $0.
+$2.1K
8,255 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $29 of their own money on 112 shares at $0.
+$29
112 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $6.9K of their own money on 26,655 shares at $0, growing their stake 1%.
+$6.9K
26,655 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $3K of their own money on 11,368 shares at $0.
+$3K
11,368 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $92 of their own money on 355 shares at $0.
+$92
355 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $165 of their own money on 635 shares at $0.
+$165
635 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $728 of their own money on 2,800 shares at $0.
+$728
2,800 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $5.7K of their own money on 21,975 shares at $0, growing their stake 1%.
+$5.7K
21,975 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $5.2K of their own money on 20,000 shares at $0.
+$5.2K
20,000 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $156 of their own money on 600 shares at $0.
+$156
600 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $338 of their own money on 1,300 shares at $0.
+$338
1,300 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $8.4K of their own money on 32,345 shares at $0, growing their stake 1%.
+$8.4K
32,345 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $291 of their own money on 1,120 shares at $0.
+$291
1,120 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $130 of their own money on 500 shares at $0.
+$130
500 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $17.7K of their own money on 68,195 shares at $0, growing their stake 2%.
+$17.7K
68,195 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $520 of their own money on 2,000 shares at $0.
+$520
2,000 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $260 of their own money on 1,000 shares at $0.
+$260
1,000 sh @ $0
ENZN
Couchman Jonathan, ENZN's 10% owner, spent $1.4K of their own money on 5,500 shares at $0.
+$1.4K
5,500 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.