Matthew C. Winger is CEO at NOCOPI TECHNOLOGIES INC/MD/ (NNUP). They have made 8 open-market trades across 1 company since 2022, most recently 2026-08-19.
CIK 0001906654
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
8 open-market purchases totalling $282K since 2022, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| NNUP | 251,116 | — |
Shares reported on the most recent Form 4, priced at the 2026-08-20 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NNUP | BUY | 2026-08-18 | 2026-08-20 | $1.71 | $9K | N/A | N/A | — |
| NNUP | BUY | 2025-06-06 | 2025-06-10 | $1.10 | $223K | N/A | N/A | N/A |
| NNUP | BUY | 2024-05-23 | 2024-05-28 | $2.92 | $22K | N/A | N/A | N/A |
| NNUP | BUY | 2023-08-24 | 2023-08-28 | $3.24 | $16K | N/A | N/A | N/A |
| NNUP | BUY | 2022-05-23 | 2022-05-25 | $0.15 | $4K | N/A | N/A | N/A |
| NNUP | BUY | 2022-05-13 | 2022-05-13 | $0.16 | $4K | N/A | N/A | N/A |
| NNUP | BUY | 2022-03-17 | 2022-03-18 | $0.19 | $950 | N/A | N/A | N/A |
| NNUP | BUY | 2022-03-11 | 2022-03-11 | $0.19 | $3K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.