As of September 09, 2026, the three largest insider holders of QNST are Douglas Valenti (Chief Executive Officer, 1.90Mn shares), Douglas Valenti (Chief Executive Officer, 1.71Mn shares), Gregory Wong (Cfo, 422.74K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Douglas Valenti | Chief Executive Officer | 821,308 | 1,077,933 | 1,899,241 | 62.5% | 11 Aug, 2026 |
| 2 | Gregory Wong | Cfo | 422,739 | 0 | 422,739 | 13.9% | 12 May, 2026 |
| 3 | David J Pauldine | Director | 9,938 | 176,827 | 186,765 | 6.1% | 08 Jul, 2026 |
| 4 | Stuart Huizinga | Director | 181,861 | 0 | 181,861 | 6.0% | 03 Nov, 2025 |
| 5 | Matthew Glickman | Director | 123,078 | 0 | 123,078 | 4.1% | 03 Nov, 2025 |
| 6 | James R. Simons | Director | 75,728 | 0 | 75,728 | 2.5% | 03 Nov, 2025 |
| 7 | Andrew T Sheehan | Director | 9,938 | 55,218 | 65,156 | 2.1% | 03 Nov, 2025 |
| 8 | Anna Liao Fieler | Director | 58,037 | 0 | 58,037 | 1.9% | 31 Oct, 2023 |
| 9 | Asmau Ahmed | Director | 24,979 | 0 | 24,979 | 0.8% | 18 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Asmau Ahmed | Director | Disposed S | 15,000 | $20.85 | $312.75K | 34,979 | Direct |
| 17 Aug, 2026 | Asmau Ahmed | Director | Disposed S | 10,000 | $20.30 | $203.00K | 24,979 | Direct |
| 11 Aug, 2026 | Asmau Ahmed | Director | Disposed S | 5,000 | $20.79 | $103.95K | 59,979 | Direct |
| 12 Aug, 2026 | Asmau Ahmed | Director | Disposed S | 10,000 | $20.43 | $204.30K | 49,979 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 12,085 | $22.02 | $266.11K | 975,473 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 6,043 | $22.02 | $133.07K | 969,430 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 24,169 | $22.02 | $532.20K | 945,261 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 24,169 | $22.02 | $532.20K | 921,092 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 6,043 | $22.02 | $133.07K | 915,049 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 6,043 | $22.02 | $133.07K | 909,006 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 6,043 | $22.02 | $133.07K | 902,963 | Direct |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed G | 81,655 | $0.00 | $0 | 821,308 | Direct |
| 07 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Disposed S | 751,631 | $20.50 | $15.41Mn | 996,278 | Indirect |
| 10 Aug, 2026 | Douglas Valenti | Chief Executive Officer | Acquired G | 81,655 | $0.00 | $0 | 1,077,933 | Indirect |
| 29 Jul, 2026 | Douglas Valenti | Chief Executive Officer | Acquired A | 13,802 | $0.00 | $0 | 607,558 | Direct |
| 29 Jul, 2026 | Douglas Valenti | Chief Executive Officer | Acquired A | 190,000 | $0.00 | $0 | 797,558 | Direct |
| 29 Jul, 2026 | Douglas Valenti | Chief Executive Officer | Acquired A | 190,000 | $0.00 | $0 | 987,558 | Direct |
| 06 Jul, 2026 | David J Pauldine | Director | Disposed G | 176,827 | $0.00 | $0 | 9,938 | Direct |
| 06 Jul, 2026 | David J Pauldine | Director | Acquired G | 176,827 | $0.00 | $0 | 176,827 | Indirect |
| 10 May, 2026 | Douglas Valenti | Chief Executive Officer | Disposed F | 6,042 | $13.21 | $79.81K | 658,964 | Direct |