Over the past year, STI insiders bought $694,305 of stock (33.01K shares) and sold $16.02 million (581.21K shares) on the open market.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Henry Ikezi | TenPercentOwner | 0 | 3,507,313 | 3,507,313 | 67.6% | 11 Jun, 2026 |
| 2 | Graphene Group, Inc. Global | TenPercentOwner | 1,569,695 | 0 | 1,569,695 | 30.3% | 05 Jun, 2026 |
| 3 | Karin-Joyce Tjon | Director | 58,053 | 0 | 58,053 | 1.1% | 15 Sep, 2026 |
| 4 | John Linzy Davis | Director | 32,938 | 0 | 32,938 | 0.6% | 17 Sep, 2026 |
| 5 | Jaymes Winters | Chief Executive Officer | 4,709 | 0 | 4,709 | 0.1% | 15 Sep, 2026 |
| 6 | Mark N Schwartz | Director | 4,296 | 0 | 4,296 | 0.1% | 03 Sep, 2026 |
| 7 | Dante W Robinson | Director | 4,296 | 0 | 4,296 | 0.1% | 03 Sep, 2026 |
| 8 | Kimi L Ellen | Director | 4,296 | 0 | 4,296 | 0.1% | 03 Sep, 2026 |
| 9 | Vlad Prantsevich | Chief Financial Officer | 3,455 | 0 | 3,455 | 0.1% | 16 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Sep, 2026 | John Linzy Davis | Director | Disposed D | 19,915 | $7.03 | $140.00K | 32,938 | Direct |
| 14 Sep, 2026 | Vlad Prantsevich | Chief Financial Officer | Acquired J | 2,425 | $0.00 | $0 | 2,425 | Direct |
| 14 Sep, 2026 | Vlad Prantsevich | Chief Financial Officer | Acquired P | 1,030 | $7.13 | $7.34K | 3,455 | Direct |
| 09 Sep, 2026 | Jaymes Winters | Chief Executive Officer | Acquired J | 3,725 | $0.00 | $0 | 3,725 | Direct |
| 14 Sep, 2026 | Karin-Joyce Tjon | Director | Acquired P | 5,000 | $7.20 | $36.00K | 58,053 | Direct |
| 09 Sep, 2026 | Jaymes Winters | Chief Executive Officer | Acquired P | 984 | $7.11 | $7.00K | 4,709 | Direct |
| 01 Sep, 2026 | Karin-Joyce Tjon | Director | Acquired A | 12,853 | $0.00 | $0 | 52,853 | Direct |
| 01 Sep, 2026 | Kimi L Ellen | Director | Acquired A | 4,296 | $0.00 | $0 | 4,296 | Direct |
| 01 Sep, 2026 | Mark N Schwartz | Director | Acquired A | 4,296 | $0.00 | $0 | 4,296 | Direct |
| 01 Sep, 2026 | John Linzy Davis | Director | Acquired A | 12,853 | $0.00 | $0 | 52,853 | Direct |
| 01 Sep, 2026 | Dante W Robinson | Director | Acquired A | 4,296 | $0.00 | $0 | 4,296 | Direct |
| 01 Sep, 2026 | Karin-Joyce Tjon | Director | Acquired J | 200 | $0.00 | $0 | 53,053 | Direct |
| 03 Jun, 2026 | Henry Ikezi | TenPercentOwner | Acquired P | 1,000 | $4.85 | $4.85K | 690,761 | Indirect |
| 04 Jun, 2026 | Henry Ikezi | TenPercentOwner | Acquired P | 23,000 | $24.66 | $567.12K | 713,761 | Indirect |
| 04 Jun, 2026 | Henry Ikezi | TenPercentOwner | Disposed S | 188,951 | $23.43 | $4.43Mn | 524,810 | Indirect |
| 05 Jun, 2026 | Henry Ikezi | TenPercentOwner | Disposed S | 13,500 | $44.89 | $605.99K | 511,310 | Indirect |
| 05 Jun, 2026 | Henry Ikezi | TenPercentOwner | Disposed J | 214,037 | $0.00 | $0 | 2,544,329 | Indirect |
| 05 Jun, 2026 | Henry Ikezi | TenPercentOwner | Acquired J | 214,037 | $0.00 | $0 | 214,037 | Indirect |
| 05 Jun, 2026 | Henry Ikezi | TenPercentOwner | Acquired P | 2,000 | $36.00 | $71.99K | 216,037 | Indirect |
| 05 Jun, 2026 | Henry Ikezi | TenPercentOwner | Disposed S | 192,437 | $37.31 | $7.18Mn | 23,600 | Indirect |