SINT's three largest insider shareholders as of September 29, 2026 are Gregg R. Honigblum (Chief Investment Officer, 201.07K shares), Eric K. Olson (President And Ceo, 30.77K shares), Mark Lewis Anderson (Director, 18.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Gregg R. Honigblum | Chief Investment Officer | 201,067 | 0 | 201,067 | 75.3% | 09 Dec, 2025 |
| 2 | Eric K. Olson | President And Ceo | 30,775 | 0 | 30,775 | 11.5% | 21 Oct, 2025 |
| 3 | Mark Lewis Anderson | Director | 18,000 | 0 | 18,000 | 6.7% | 18 Feb, 2026 |
| 4 | Christopher Michael Lyons | Director | 8,292 | 0 | 8,292 | 3.1% | 10 Mar, 2026 |
| 5 | Robert Ryan Elmore | President | 4,910 | 0 | 4,910 | 1.8% | 14 Apr, 2026 |
| 6 | Jay M Moyes | Chief Financial Officer | 4,000 | 0 | 4,000 | 1.5% | 25 Feb, 2026 |
| 7 | David W. Truetzel | Director | 0 | 0 | 0 | 0.0% | 14 Dec, 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 |
|---|---|---|---|---|---|---|---|---|
| 13 Apr, 2026 | Robert Ryan Elmore | President | Acquired A | 4,910 | $2.89 | $14.17K | 4,910 | Direct |
| 16 Mar, 2026 | Robert Ryan Elmore | President | Acquired A | 107,143 | $0.00 | $0 | 107,143 | Direct |
| 25 Feb, 2026 | Christopher Michael Lyons | Director | Acquired P | 758 | $2.96 | $2.24K | 758 | Direct |
| 02 Mar, 2026 | Christopher Michael Lyons | Director | Acquired P | 7,534 | $2.90 | $21.85K | 8,292 | Direct |
| 23 Feb, 2026 | Jay M Moyes | Director | Acquired P | 1,000 | $2.91 | $2.91K | 4,000 | Direct |
| 18 Feb, 2026 | Mark Lewis Anderson | Director | Acquired P | 3,000 | $3.02 | $9.06K | 18,000 | Direct |
| 06 Feb, 2026 | Kevin Trask | Chief Financial Officer | Acquired A | 60,000 | $0.00 | $0 | 100,000 | Direct |
| 06 Feb, 2026 | Eric K. Olson | Chairman, President And Ceo | Acquired A | 100,000 | $0.00 | $0 | 160,000 | Direct |
| 06 Feb, 2026 | Gregg R. Honigblum | Chief Investment Officer | Acquired A | 75,000 | $0.00 | $0 | 133,000 | Direct |
| 08 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 3,200 | $4.28 | $13.70K | 196,067 | Direct |
| 08 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $4.24 | $21.20K | 201,067 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.95 | $19.75K | 79,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.94 | $19.70K | 84,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $4.00 | $20.00K | 89,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $4.07 | $20.35K | 94,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $4.02 | $20.10K | 99,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.94 | $19.70K | 104,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.91 | $19.55K | 109,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.91 | $19.55K | 114,000 | Direct |
| 05 Dec, 2025 | Gregg R. Honigblum | Chief Investment Officer | Acquired P | 5,000 | $3.91 | $19.55K | 119,000 | Direct |