Comparable stake leader
Et al Phillip Frost MD
SEC ownership of NOCOPI TECHNOLOGIES INC/MD/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000888981.
Disclosed value leader
Michael S. Liebowitz
Comparable rows
4/11
Latest evidence
29 Dec 2025
- Public ticker
- NNUP on OTC
- Parsed ownership sources
-
3/4/5 and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Et al Phillip Frost MD
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 11
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Et al Phillip Frost MD
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
29 Dec 2025
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000888981
- Issuer location
- King Of Prussia, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of NOCOPI TECHNOLOGIES INC/MD/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Et al Phillip Frost MD
Disclosed value leader
Michael S. Liebowitz
Comparable rows
4/11
Latest evidence
29 Dec 2025
3/4/5
13D/G
Lead comparable stake: 14%
7 rows are not safely comparable across share classes.
13D/G row: Et al Phillip Frost MD
Showing 1-8 of 11 holder rows.
Quick read
Et al Phillip Frost MD leads the comparable SEC ownership view at 14%.
4 of 11 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Et al Phillip Frost MD's linked filing trail.
Comparable ownership
Top 4
Et al Phillip Frost MD
14%
Matthew C. Winger
2.3%
Kevin Camerer Westenburg
1.9%
Debra Elyse Glickman
0.14%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 11 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Et al Phillip Frost MD |
3/4/5
13D/G
10%+ Owner · Phillip Frost, M.D.
|
14%
from 13D/G
|
$2,413,333
1,489,712 shares
|
— | 11 Sep 2025 |
| Matthew C. Winger |
3/4/5
Chief Executive Officer, Director
|
2.3%
|
$398,384
245,916 shares
|
— | 29 Dec 2025 |
| Kevin Camerer Westenburg |
3/4/5
President, Director
|
1.9%
|
$324,863
200,533 shares
|
— | 29 Dec 2025 |
| Debra Elyse Glickman |
3/4/5
Chief Financial Officer
|
0.14%
|
$34,254
15,280 shares
mixed-class rows
|
— | 29 Dec 2025 |
| Howard Timothy Eriksen |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$3,220
1,000 shares
|
— | 23 May 2022 |
| Joseph S. Steinberg |
3/4/5
10%+ Owner
|
—
class O/S missing
|
—
1,445,851 shares
|
— | 06 Jun 2025 |
| Michael S. Liebowitz |
3/4/5
Chief Executive Officer, Director
|
—
mixed-class rows
|
$9,276,226
4,882,224 shares
mixed-class rows
|
— | 23 Dec 2024 |
| Michael Feinstein |
3/4/5
Chairman of the Board, Director
|
—
class O/S missing
|
$9,103,207
2,827,083 shares
|
— | 13 Aug 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 04 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-12 of 12 reporting-owner rows connected to NOCOPI TECHNOLOGIES INC/MD/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
12
Largest Forms 3/4/5 holder
Michael S. Liebowitz
Net 12M change
$0
Latest report
29 Dec 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael S. Liebowitz | Chief Executive Officer, Director | $9,276,226 | Mixed | 23 Dec 2024 | ||
| Michael Feinstein | Chairman of the Board, Director | $9,103,207 | Mixed | 13 Aug 2021 | ||
| Et al Phillip Frost MD | 10%+ Owner | $2,413,333 | Mixed | 11 Sep 2025 | ||
| Philip B. White | Director | $841,209 | Mixed | 23 Jul 2021 | ||
| Matthew C. Winger | Chief Executive Officer, Director | $398,384 | Mixed | 29 Dec 2025 | ||
| Kevin Camerer Westenburg | President, Director | $324,863 | Mixed | 29 Dec 2025 | ||
| Jacqueline J. Goldman | Director | $119,700 | Mixed | 22 Dec 2024 | ||
| Debra Elyse Glickman | Chief Financial Officer | $34,254 | Mixed | 29 Dec 2025 | ||
| Joseph Kevin Raymond | Director | $27,370 | Mixed | 21 Oct 2021 | ||
| Howard Timothy Eriksen | 10%+ Owner | $3,220 | Mixed | 23 May 2022 | ||
| Joseph S. Steinberg | 10%+ Owner | Mixed | 06 Jun 2025 | |||
| Eric Sites | Director | Mixed | 15 Dec 2025 |
Recent insider transactions for NOCOPI TECHNOLOGIES INC/MD/
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Matthew C. Winger | NNUP | Common Stock | Award | 4.24% | 10,000 | 245,916 | 29 Dec 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 19.9% | 33,333 | 200,533 | 29 Dec 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Award | 13.6% | 20,000 | 167,200 | 29 Dec 2025 | Direct | ||
| Debra Elyse Glickman | NNUP | Common Stock | Tax liability | -13.4% | -2,360 | 15,280 | 29 Dec 2025 | Direct | ||
| Debra Elyse Glickman | NNUP | Common Stock | Award | 130.9% | 10,000 | 17,640 | 29 Dec 2025 | Direct | ||
| Debra Elyse Glickman | NNUP | Common Stock | Tax liability | -23.6% | -2,360 | 7,640 | 24 Dec 2025 | Direct | ||
| Debra Elyse Glickman | NNUP | Common Stock | Options Exercise | 100% | 5,000 | 10,000 | 24 Dec 2025 | Direct | ||
| Debra Elyse Glickman | NNUP | Restricted Stock Units | Options Exercise | -100% | -5,000 | 0 | 24 Dec 2025 | Direct | ||
| Frost Phillip MD Et al | NNUP | Common Stock | Award | 1.49% | 21,930 | 1,489,712 | 11 Sep 2025 | See footnote | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 2.79% | 4,000 | 147,200 | 28 Aug 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 1.06% | 1,500 | 143,200 | 27 Aug 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 3.66% | 5,000 | 141,700 | 26 Aug 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 1.86% | 2,500 | 136,700 | 20 Aug 2025 | Direct | ||
| Kevin Camerer Westenburg | NNUP | Common Stock | Purchase | 3.87% | 5,000 | 134,200 | 19 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.