As of September 12, 2026, the three largest insider holders of SHIM are Mitchell B. Goldsteen (Director, 20.97Mn shares), Aecom (TenPercentOwner, 7.75Mn shares), Guercio Joseph Del (Director, 224.58K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Mitchell B. Goldsteen | Director, TenPercentOwner | 0 | 20,974,873 | 20,974,873 | 69.4% | 20 Mar, 2026 |
| 2 | Aecom | TenPercentOwner | 7,745,000 | 0 | 7,745,000 | 25.6% | 26 Jun, 2024 |
| 3 | Guercio Joseph Del | Director | 264,212 | 0 | 264,212 | 0.9% | 04 Jun, 2026 |
| 4 | Geoffrey E. Heekin | Director | 233,958 | 0 | 233,958 | 0.8% | 04 Jun, 2026 |
| 5 | J Brendan Herron | Director | 227,287 | 0 | 227,287 | 0.8% | 05 Jun, 2025 |
| 6 | Peter Kravitz | Director | 184,940 | 0 | 184,940 | 0.6% | 04 Jun, 2026 |
| 7 | Ural Yal | Chief Executive Officer | 173,205 | 0 | 173,205 | 0.6% | 04 Dec, 2025 |
| 8 | Steven E. Richards | Chief Executive Officer | 142,857 | 0 | 142,857 | 0.5% | 15 Nov, 2023 |
| 9 | Devin Nordhagen | Officer | 142,857 | 0 | 142,857 | 0.5% | 15 Nov, 2023 |
| 10 | Todd Wilbur Yoder | Chief Financial Officer | 97,519 | 0 | 97,519 | 0.3% | 16 Apr, 2026 |
| 11 | Sarah Beth Tacker | Chief Operating Officer | 18,133 | 0 | 18,133 | 0.1% | 02 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Jun, 2026 | Geoffrey E. Heekin | Director | Acquired M | 100,671 | — | — | 209,449 | Direct |
| 02 Jun, 2026 | Peter Kravitz | Director | Acquired M | 100,671 | — | — | 184,940 | Direct |
| 02 Jun, 2026 | Peter Kravitz | Director | Acquired A | 60,000 | $0.00 | $0 | 60,000 | Direct |
| 02 Jun, 2026 | Geoffrey E. Heekin | Director | Acquired A | 60,000 | $0.00 | $0 | 60,000 | Direct |
| 02 Jun, 2026 | Peter Kravitz | Director | Disposed M | 100,671 | $0.00 | $0 | 0 | Direct |
| 02 Jun, 2026 | Geoffrey E. Heekin | Director | Disposed M | 100,671 | $0.00 | $0 | 0 | Direct |
| 29 May, 2026 | Sarah Beth Tacker | Chief Operating Officer | Acquired M | 26,596 | — | — | 26,596 | Direct |
| 29 May, 2026 | Sarah Beth Tacker | Chief Operating Officer | Disposed F | 8,463 | $3.54 | $29.96K | 18,133 | Direct |
| 29 May, 2026 | Sarah Beth Tacker | Chief Operating Officer | Disposed M | 26,596 | $0.00 | $0 | 88,652 | Direct |
| 29 Apr, 2026 | Sarah Beth Tacker | Chief Operating Officer | Acquired A | 26,596 | $0.00 | $0 | 26,596 | Direct |
| 29 Apr, 2026 | Sarah Beth Tacker | Chief Operating Officer | Acquired A | 88,652 | $0.00 | $0 | 88,652 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Acquired M | 72,464 | — | — | 74,464 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Disposed F | 22,335 | $3.91 | $87.33K | 52,129 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Acquired M | 59,783 | — | — | 111,912 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Disposed F | 16,393 | $3.91 | $64.10K | 95,519 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Disposed M | 72,464 | $0.00 | $0 | 0 | Direct |
| 14 Apr, 2026 | Todd Wilbur Yoder | Chief Financial Officer | Disposed M | 59,783 | $0.00 | $0 | 121,376 | Direct |
| 17 Mar, 2026 | Mitchell B. Goldsteen | Director, TenPercentOwner | Disposed S | 125,000 | $2.86 | $357.50K | 20,974,873 | Indirect |
| 02 Dec, 2025 | Ural Yal | Chief Executive Officer | Acquired M | 173,205 | — | — | 173,205 | Direct |
| 02 Dec, 2025 | Ural Yal | Chief Executive Officer | Acquired M | 173,205 | — | — | 173,205 | Direct |