KRT's three largest insider shareholders as of September 09, 2026 are Alan Yu (Chief Executive Officer, 6.10Mn shares), Marvin Cheng (Vp Manufacturing, Secy, 5.25Mn shares), Jian Guo (Chief Financial Officer, 41.03K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Alan Yu | Chief Executive Officer | 6,097,181 | 0 | 6,097,181 | 53.2% | 15 May, 2026 |
| 2 | Marvin Cheng | Vp Manufacturing, Secy | 5,249,272 | 0 | 5,249,272 | 45.8% | 08 Sep, 2026 |
| 3 | Jian Guo | Chief Financial Officer | 41,029 | 0 | 41,029 | 0.4% | 14 Aug, 2026 |
| 4 | Daniel Quire | Chief Revenue Officer | 23,631 | 0 | 23,631 | 0.2% | 15 May, 2026 |
| 5 | Joanne Tzu Jung Wang | Chief Operating Officer | 23,578 | 0 | 23,578 | 0.2% | 19 Oct, 2023 |
| 6 | Eve Yen | Director | 8,000 | 0 | 8,000 | 0.1% | 11 May, 2026 |
| 7 | Paul Y Chen | Director | 7,000 | 0 | 7,000 | 0.1% | 11 May, 2026 |
| 8 | Eric K Chen | Director | 7,000 | 0 | 7,000 | 0.1% | 11 May, 2026 |
| 9 | Ann T Sabahat | Chief Financial Officer | 5,000 | 0 | 5,000 | 0.0% | 05 Oct, 2021 |
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 |
|---|---|---|---|---|---|---|---|---|
| 04 Sep, 2026 | Marvin Cheng | Vp Manufacturing, Secy | Disposed S | 4,000 | $48.38 | $193.50K | 5,251,272 | Direct |
| 08 Sep, 2026 | Marvin Cheng | Vp Manufacturing, Secy | Disposed S | 2,000 | $48.50 | $97.00K | 5,249,272 | Direct |
| 20 Aug, 2026 | Marvin Cheng | Vp Manufacturing, Secy | Disposed S | 4,500 | $47.33 | $212.99K | 3,000 | Indirect |
| 13 Aug, 2026 | Jian Guo | Chief Financial Officer | Acquired M | 4,700 | $16.53 | $77.69K | 41,029 | Direct |
| 13 Aug, 2026 | Jian Guo | Chief Financial Officer | Disposed M | 4,700 | $0.00 | $0 | 31,850 | Direct |
| 15 May, 2026 | Jian Guo | Chief Financial Officer | Disposed F | 2,733 | $26.28 | $71.83K | 36,329 | Direct |
| 15 May, 2026 | Daniel Quire | Chief Revenue Officer | Disposed F | 2,065 | $26.28 | $54.27K | 23,631 | Direct |
| 15 May, 2026 | Alan Yu | Chief Executive Officer | Disposed F | 2,124 | $26.28 | $55.82K | 6,097,181 | Direct |
| 12 May, 2026 | Daniel Quire | Chief Revenue Officer | Acquired M | 8,000 | — | — | 25,696 | Direct |
| 12 May, 2026 | Alan Yu | Chief Executive Officer | Acquired M | 8,000 | — | — | 6,099,305 | Direct |
| 12 May, 2026 | Jian Guo | Chief Financial Officer | Acquired M | 8,000 | — | — | 39,062 | Direct |
| 11 Mar, 2026 | Daniel Quire | Chief Revenue Officer | Acquired A | 24,000 | $0.00 | $0 | 24,000 | Direct |
| 11 Mar, 2026 | Alan Yu | Chief Executive Officer | Acquired A | 32,000 | $0.00 | $0 | 32,000 | Direct |
| 12 May, 2026 | Alan Yu | Chief Executive Officer | Disposed M | 8,000 | $0.00 | $0 | 0 | Direct |
| 12 May, 2026 | Daniel Quire | Chief Revenue Officer | Disposed M | 8,000 | $0.00 | $0 | 0 | Direct |
| 11 Mar, 2026 | Jian Guo | Chief Financial Officer | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 12 May, 2026 | Jian Guo | Chief Financial Officer | Disposed M | 8,000 | $0.00 | $0 | 0 | Direct |
| 07 May, 2026 | Paul Y Chen | Director | Acquired M | 1,000 | — | — | 7,000 | Direct |
| 07 May, 2026 | Eric K Chen | Director | Acquired M | 1,000 | — | — | 7,000 | Direct |
| 07 May, 2026 | Eve Yen | Director | Acquired M | 1,000 | — | — | 8,000 | Direct |