GBX's three largest insider shareholders as of September 29, 2026 are Lorie Tekorius (Ceo And President, 347.52K shares), William A Furman (Chairman Ceo, 281.62K shares), Brian J Comstock (Evp President, The Americas, 74.19K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Lorie Tekorius | Ceo And President | 347,521 | 0 | 347,521 | 26.6% | 24 Oct, 2025 |
| 2 | William A Furman | Chairman Ceo | 281,624 | 0 | 281,624 | 21.6% | 30 Nov, 2023 |
| 3 | Brian J Comstock | Evp President, The Americas | 74,195 | 0 | 74,195 | 5.7% | 24 Oct, 2025 |
| 4 | Alejandro Centurion | Evp And President, Gmo | 63,522 | 0 | 63,522 | 4.9% | 26 Oct, 2021 |
| 5 | William J. Krueger | Svp, Coo, The Americas | 59,262 | 0 | 59,262 | 4.5% | 02 Feb, 2026 |
| 6 | Martin Raymond Baker | Senior Vice President | 45,470 | 0 | 45,470 | 3.5% | 29 Oct, 2024 |
| 7 | Laurie R Dornan | Svp, Chief Hr Officer | 44,481 | 0 | 44,481 | 3.4% | 24 Oct, 2025 |
| 8 | Adrian J Downes | Svp Cfo | 44,326 | 0 | 44,326 | 3.4% | 20 Oct, 2023 |
| 9 | Wendy L Teramoto | Director | 37,225 | 0 | 37,225 | 2.8% | 20 Jul, 2026 |
| 10 | Charles J Swindells | Director | 36,630 | 0 | 36,630 | 2.8% | 30 Nov, 2023 |
| 11 | Donald A Washburn | Director | 35,541 | 0 | 35,541 | 2.7% | 06 Dec, 2021 |
| 12 | Ricardo Galvan | Svp, Operations, Maint Svcs. | 27,472 | 0 | 27,472 | 2.1% | 07 Nov, 2024 |
| 13 | Antonio O Garza | Director | 27,196 | 0 | 27,196 | 2.1% | 09 Jan, 2026 |
| 14 | Duane Charles Mcdougall | Director | 4,191 | 21,900 | 26,091 | 2.0% | 06 Dec, 2021 |
| 15 | Michael J Donfris | Svp, Cfo | 25,596 | 0 | 25,596 | 2.0% | 17 Jun, 2026 |
| 16 | Graeme Jack | Director | 25,409 | 0 | 25,409 | 1.9% | 07 Jan, 2025 |
| 17 | William Glenn | Svp President, Europe | 24,325 | 0 | 24,325 | 1.9% | 15 Jul, 2026 |
| 18 | Christian Lucky | Svp, Clo And Cco | 19,575 | 0 | 19,575 | 1.5% | 24 Oct, 2025 |
| 19 | Patrick J Ottensmeyer | Director | 16,439 | 0 | 16,439 | 1.3% | 16 May, 2024 |
| 20 | James R Huffines | Director | 13,909 | 0 | 13,909 | 1.1% | 11 Aug, 2025 |
| 21 | David L Starling | Director | 11,560 | 0 | 11,560 | 0.9% | 21 Feb, 2023 |
| 22 | Matthew Joseph Meyer | Svp, Finance Cao | 9,439 | 0 | 9,439 | 0.7% | 24 Oct, 2025 |
| 23 | Wanda F Felton | Director | 7,794 | 0 | 7,794 | 0.6% | 09 Jan, 2026 |
| 24 | Thomas B Fargo | Director | 2,141 | 0 | 2,141 | 0.2% | 10 Jul, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 16 Jul, 2026 | Wendy L Teramoto | Director | Disposed G | 313 | $0.00 | $0 | 37,225 | Direct |
| 13 Jul, 2026 | William Glenn | Svp President, Europe | Disposed S | 4,000 | $48.15 | $192.60K | 24,325 | Direct |
| 14 Jul, 2026 | William Glenn | Svp President, Europe | Disposed I | 20,000 | $47.68 | $953.68K | 35,068 | Direct |
| 17 Jun, 2026 | Michael J Donfris | Svp, Cfo | Disposed F | 351 | $49.33 | $17.31K | 25,596 | Direct |
| 03 Feb, 2026 | Wendy L Teramoto | Director | Disposed G | 294 | $0.00 | $0 | 37,538 | Direct |
| 30 Jan, 2026 | William J. Krueger | Svp, Coo, The Americas | Disposed S | 6,000 | $50.00 | $300.00K | 59,262 | Direct |
| 07 Jan, 2026 | Wanda F Felton | Director | Acquired M | 2,022 | $0.00 | $0 | 5,022 | Direct |
| 07 Jan, 2026 | Kelly Marie Williams | Director | Acquired M | 2,528 | — | — | 36,378 | Direct |
| 07 Jan, 2026 | Jeffrey M Songer | Director | Disposed M | 1,776 | $0.00 | $0 | 0 | Direct |
| 07 Jan, 2026 | Antonio O Garza | Director | Acquired A | 3,465 | $0.00 | $0 | 27,196 | Direct |
| 07 Jan, 2026 | James R Huffines | Director | Acquired M | 2,528 | — | — | 14,127 | Direct |
| 07 Jan, 2026 | Stevan B. Bobb | Director | Disposed M | 1,776 | $0.00 | $0 | 0 | Direct |
| 07 Jan, 2026 | Wendy L Teramoto | Director | Acquired A | 3,465 | $0.00 | $0 | 37,832 | Direct |
| 07 Jan, 2026 | Thomas B Fargo | Director | Acquired M | 2,528 | — | — | 30,510 | Direct |
| 07 Jan, 2026 | Graeme Jack | Director | Acquired M | 2,528 | — | — | 46,454 | Direct |
| 07 Jan, 2026 | Graeme Jack | Director | Acquired A | 3,465 | — | — | 49,919 | Direct |
| 07 Jan, 2026 | James R Huffines | Director | Acquired A | 3,465 | — | — | 17,592 | Direct |
| 07 Jan, 2026 | Kelly Marie Williams | Director | Acquired A | 3,465 | — | — | 39,843 | Direct |
| 07 Jan, 2026 | Jeffrey M Songer | Director | Acquired M | 1,776 | — | — | 1,776 | Direct |
| 07 Jan, 2026 | Thomas B Fargo | Director | Acquired A | 3,465 | — | — | 33,975 | Direct |