Nocopi Technologies's three largest insider shareholders as of September 29, 2026 are Howard Timothy Eriksen (TenPercentOwner, 6.51Mn shares), Michael Liebowitz (Chief Executive Officer, 3.09Mn shares), Phillip Md Et Al Frost (TenPercentOwner, 1.51Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Phillip Md Et Al Frost | TenPercentOwner | 0 | 1,511,642 | 1,511,642 | 41.6% | 14 Sep, 2026 |
| 2 | Joseph S Steinberg | TenPercentOwner | 1,445,851 | 0 | 1,445,851 | 39.8% | 10 Jun, 2025 |
| 3 | Matthew C. Winger | Chief Executive Officer | 251,116 | 0 | 251,116 | 6.9% | 20 Aug, 2026 |
| 4 | Kevin Camerer Westenburg | President | 200,533 | 0 | 200,533 | 5.5% | 05 Jan, 2026 |
| 5 | Michael Liebowitz | Chief Executive Officer | 144,805 | 0 | 144,805 | 4.0% | 19 Nov, 2024 |
| 6 | Jacqueline Joy Goldman | Director | 63,000 | 0 | 63,000 | 1.7% | 26 Dec, 2024 |
| 7 | Debra Elyse Glickman | Chief Financial Officer | 15,280 | 0 | 15,280 | 0.4% | 05 Jan, 2026 |
| 8 | Eric Sites | Director | 2,500 | 0 | 2,500 | 0.1% | 11 Sep, 2026 |
| 9 | Howard Timothy Eriksen | TenPercentOwner | 0 | 1,000 | 1,000 | 0.0% | 24 May, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 10 Sep, 2026 | Eric Sites | Director | Acquired P | 1,000 | $1.85 | $1.85K | 2,000 | Direct |
| 11 Sep, 2026 | Eric Sites | Director | Acquired P | 500 | $1.80 | $900 | 2,500 | Direct |
| 09 Sep, 2026 | Eric Sites | Director | Acquired P | 1,000 | $1.90 | $1.90K | 1,000 | Direct |
| 18 Aug, 2026 | Matthew C. Winger | Chief Executive Officer | Acquired P | 5,000 | $1.71 | $8.55K | 250,916 | Direct |
| 19 Aug, 2026 | Matthew C. Winger | Chief Executive Officer | Acquired P | 200 | $1.80 | $360 | 251,116 | Direct |
| 29 Dec, 2025 | Matthew C. Winger | Chief Executive Officer | Acquired A | 10,000 | — | — | 245,916 | Direct |
| 29 Dec, 2025 | Debra Elyse Glickman | Chief Financial Officer | Acquired A | 10,000 | — | — | 17,640 | Direct |
| 29 Dec, 2025 | Kevin Camerer Westenburg | President | Acquired A | 20,000 | — | — | 167,200 | Direct |
| 29 Dec, 2025 | Debra Elyse Glickman | Chief Financial Officer | Disposed F | 2,360 | — | — | 15,280 | Direct |
| 29 Dec, 2025 | Kevin Camerer Westenburg | President | Acquired P | 33,333 | $1.50 | $50.00K | 200,533 | Direct |
| 24 Dec, 2025 | Debra Elyse Glickman | Chief Financial Officer | Acquired M | 5,000 | — | — | 10,000 | Direct |
| 24 Dec, 2025 | Debra Elyse Glickman | Chief Financial Officer | Disposed F | 2,360 | — | — | 7,640 | Direct |
| 24 Dec, 2025 | Debra Elyse Glickman | Chief Financial Officer | Disposed M | 5,000 | $0.00 | $0 | 0 | Direct |
| 11 Sep, 2025 | Phillip Md Et Al Frost | TenPercentOwner | Acquired A | 21,930 | $0.00 | $0 | 1,489,712 | Indirect |
| 26 Aug, 2025 | Kevin Camerer Westenburg | President | Acquired P | 5,000 | $1.60 | $8.00K | 141,700 | Direct |
| 27 Aug, 2025 | Kevin Camerer Westenburg | President | Acquired P | 1,500 | $1.63 | $2.45K | 143,200 | Direct |
| 28 Aug, 2025 | Kevin Camerer Westenburg | President | Acquired P | 4,000 | $1.65 | $6.60K | 147,200 | Direct |
| 19 Aug, 2025 | Kevin Camerer Westenburg | President | Acquired P | 5,000 | $1.60 | $8.00K | 134,200 | Direct |
| 20 Aug, 2025 | Kevin Camerer Westenburg | President | Acquired P | 2,500 | $1.60 | $4.00K | 136,700 | Direct |
| 06 Jun, 2025 | Joseph S Steinberg | TenPercentOwner | Acquired P | 195,851 | $1.10 | $215.44K | 1,445,851 | Direct |