As of September 09, 2026, the three largest insider holders of NTIC are Matthew C Wolsfeld (Cfo And Corporate Secretary, 170.97K shares), Ramani Narayan (Director, 106.76K shares), Ramani Narayan (Director, 106.76K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Matthew C Wolsfeld | Cfo And Corporate Secretary | 170,966 | 0 | 170,966 | 32.5% | 02 Jul, 2026 |
| 2 | Ramani Narayan | Director | 106,763 | 0 | 106,763 | 20.3% | 03 Oct, 2022 |
| 3 | G Patrick Lynch | President And Ceo | 105,284 | 0 | 105,284 | 20.0% | 31 Jul, 2026 |
| 4 | Richard Nigon | Director | 54,574 | 0 | 54,574 | 10.4% | 03 Sep, 2026 |
| 5 | Sarah E. Kemp | Director | 22,458 | 0 | 22,458 | 4.3% | 03 Sep, 2026 |
| 6 | Nancy E. Calderon | Director | 20,940 | 0 | 20,940 | 4.0% | 03 Sep, 2026 |
| 7 | Falkenhausen Konstantin Von | Director | 18,219 | 0 | 18,219 | 3.5% | 06 May, 2025 |
| 8 | Cristina Lucia Duarte Pinho | Director | 16,698 | 0 | 16,698 | 3.2% | 03 Sep, 2026 |
| 9 | Sunggyu Lee | Director | 9,507 | 0 | 9,507 | 1.8% | 03 Sep, 2026 |
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 |
|---|---|---|---|---|---|---|---|---|
| 29 Jul, 2026 | G Patrick Lynch | President And Ceo | Acquired M | 16,072 | $6.70 | $107.68K | 121,356 | Direct |
| 29 Jul, 2026 | G Patrick Lynch | President And Ceo | Disposed S | 2 | $8.10 | $16 | 121,354 | Direct |
| 30 Jul, 2026 | G Patrick Lynch | President And Ceo | Disposed S | 16,070 | $8.00 | $128.51K | 105,284 | Direct |
| 29 Jul, 2026 | G Patrick Lynch | President And Ceo | Disposed M | 16,072 | $0.00 | $0 | 0 | Direct |
| 20 Jul, 2026 | Richard Nigon | Director | Acquired M | 12,000 | $6.70 | $80.40K | 59,148 | Direct |
| 20 Jul, 2026 | Richard Nigon | Director | Disposed S | 12,000 | $8.00 | $96.05K | 47,148 | Direct |
| 20 Jul, 2026 | Richard Nigon | Director | Disposed M | 12,000 | $0.00 | $0 | 0 | Direct |
| 01 Jul, 2026 | Matthew C Wolsfeld | Cfo And Corporate Secretary | Acquired M | 11,879 | $6.70 | $79.59K | 180,135 | Direct |
| 01 Jul, 2026 | Matthew C Wolsfeld | Cfo And Corporate Secretary | Disposed F | 9,169 | $8.68 | $79.59K | 170,966 | Direct |
| 01 Jul, 2026 | Matthew C Wolsfeld | Cfo And Corporate Secretary | Disposed M | 11,879 | $0.00 | $0 | 0 | Direct |
| 13 Nov, 2024 | Nancy E. Calderon | Director | Acquired L | 5 | $13.29 | $72 | 7,960 | Direct |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Director | Acquired A | 6,739 | $0.00 | $0 | 10,510 | Direct |
| 01 Sep, 2025 | Sarah E. Kemp | Director | Acquired A | 6,739 | $0.00 | $0 | 16,270 | Direct |
| 01 Sep, 2025 | Richard Nigon | Director | Acquired A | 8,086 | $0.00 | $0 | 47,148 | Direct |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Director | Acquired A | 6,739 | $0.00 | $0 | 10,510 | Direct |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Director | Acquired A | 6,739 | $0.00 | $0 | 10,510 | Direct |
| 01 Sep, 2025 | Cristina Lucia Duarte Pinho | Director | Acquired A | 6,739 | $0.00 | $0 | 10,510 | Direct |
| 01 Sep, 2025 | Falkenhausen Konstantin Von | Director | Acquired A | 16,287 | $0.00 | $0 | 16,287 | Direct |
| 01 Sep, 2025 | Falkenhausen Konstantin Von | Director | Acquired A | 16,287 | $0.00 | $0 | 16,287 | Direct |
| 01 Sep, 2025 | Ramani Narayan | Director | Acquired A | 16,287 | $0.00 | $0 | 16,287 | Direct |