Updated Jul 16, 2026 · Last SEC filing 2026-07-15
GREENBRIER COMPANIES INC (GBX) has filed 2 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-15. 2 Form 8-K material event filings were reported by GBX in the last 90 days. 1 Form 144 notices of proposed sale were filed for GBX stock. InsiderAlpha tracks every GBX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000923120 |
|---|
| Form 4 filings (90d) | 2 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-15 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Glenn William | SVP & President, Europe | S — Open-market sale | 4.0K | $48.15 | $193K | SEC | |
| Donfris Michael J | SVP, CFO | F — Tax withholding / forfeiture | 351 | $49.33 | $17K | SEC | |
| Teramoto Wendy L | Director | G — Bona-fide gift | 294 | $0.00 | — | SEC | |
| Krueger William J. | SVP, COO, The Americas | S — Open-market sale | 6.0K | $50.00 | $300K | SEC | |
| Garza Antonio O | Director | A — Grant or award | 17 | $0.00 | — | SEC | |
| Huffines James R | Director | P — Open-market purchase | 2.5K | $44.84 | $112K | SEC | |
| Garza Antonio O | Director | A — Grant or award | 17 | $0.00 | — | SEC | |
| Songer Jeffrey M | Director | A — Grant or award | 12 | $0.00 | — | SEC | |
| Bobb Stevan B. | Director | A — Grant or award | 12 | $0.00 | — | SEC | |
| Teramoto Wendy L | Director | A — Grant or award | 17 | $0.00 | — | SEC | |
| Felton Wanda F | Director | S — Open-market sale | 3.7K | $54.31 | $198K | SEC | |
| FARGO THOMAS B | Director | S — Open-market sale | 3.7K | $54.97 | $205K | SEC | |
| Krueger William J. | SVP, COO, The Americas | S — Open-market sale | 4.0K | $48.00 | $192K | SEC | |
| Krueger William J. | SVP, COO, The Americas | S — Open-market sale [10b5-1] | 690 | $67.89 | $47K | SEC | |
| Krueger William J. | SVP, COO, The Americas | S — Open-market sale [10b5-1] | 1.3K | $68.91 | $90K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for GREENBRIER COMPANIES INC (GBX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Glenn William | 2 | $1.15M |
| Donfris Michael J | 1 | $17K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in GBX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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