Insider Transactions Reported by 12 Insiders of NOCOPI TECHNOLOGIES INC/MD/

Symbol: NNUP on OTC
Location: King Of Prussia, PA

Key facts

NNUP - NOCOPI TECHNOLOGIES INC/MD/ has 12 insiders with reported activity on this page.
No net insider buy/sell flow is currently reported for the last year.
Recent transaction rows are available for direct filing-level review.

Change

No meaningful buy/sell imbalance is currently visible in the one-year window.
Activity will update as new Forms 3/4/5 are filed.

Research use

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 25 May 2025.

Buys

Shares: 0

Insiders: 0

Sells

Shares: 0

Insiders: 0

Net

Shares: 0

Insiders: 0

Window (months)	Buy $	Sell $	Net $
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

NOCOPI TECHNOLOGIES INC/MD/ executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	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

Top shareholders of NOCOPI TECHNOLOGIES INC/MD/ (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: 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.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Et al Phillip Frost MD	3/4/5 13D/G	10%+ Owner · Phillip Frost, M.D.	14% from 13D/G	1,489,712	$2,413,333	—	11 Sep 2025	3/4/5 13D/G
Matthew C. Winger	3/4/5	Chief Executive Officer, Director	2.3%	245,916	$398,384	—	29 Dec 2025	3/4/5
Kevin Camerer Westenburg	3/4/5	President, Director	1.9%	200,533	$324,863	—	29 Dec 2025	3/4/5
Debra Elyse Glickman	3/4/5	Chief Financial Officer	0.14%	15,280 mixed-class rows	$34,254	—	29 Dec 2025	3/4/5
Howard Timothy Eriksen	3/4/5	10%+ Owner	— class O/S missing	1,000	$3,220	—	23 May 2022	3/4/5
Joseph S. Steinberg	3/4/5	10%+ Owner	— class O/S missing	1,445,851	—	—	06 Jun 2025	3/4/5
Michael S. Liebowitz	3/4/5	Chief Executive Officer, Director	— mixed-class rows	4,882,224 mixed-class rows	$9,276,226	—	23 Dec 2024	3/4/5
Michael Feinstein	3/4/5	Chairman of the Board, Director	— class O/S missing	2,827,083	$9,103,207	—	13 Aug 2021	3/4/5
Philip B. White	3/4/5	Director	— class O/S missing	261,245	$841,209	—	23 Jul 2021	3/4/5
Jacqueline J. Goldman	3/4/5	Director	— class O/S missing	63,000	$119,700	—	22 Dec 2024	3/4/5
Joseph Kevin Raymond	3/4/5	Director	— class O/S missing	8,500	$27,370	—	21 Oct 2021	3/4/5

Recent Insider Transactions by Companies or Individuals for NOCOPI TECHNOLOGIES INC/MD/

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	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
Joseph S. Steinberg	NNUP	Common Stock	Purchase	15.7%	195,851	1,445,851	06 Jun 2025	Direct
Matthew C. Winger	NNUP	Common Stock	Purchase	75.4%	101,416	235,916	06 Jun 2025	Direct
Frost Phillip MD Et al	NNUP	Common Stock	Purchase	15.4%	195,852	1,467,782	06 Jun 2025	See footnote

* An asterisk sign (*) next to the price indicates that the price is likely invalid.