The Greenbrier Companies, Inc.
MX ˙ BMV ˙ US3936571013
SecurityMX:GBX / The Greenbrier Companies, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership89,064 shares
Latest Disclosed Value $ 4,689,200
Rhumbline Advisers reports 1.15% increase in ownership of GBX / The Greenbrier Companies, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 89,064 shares of The Greenbrier Companies, Inc. (MX:GBX) valued at $4,689,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 88,049 shares of The Greenbrier Companies, Inc.. This represents a change in shares of 1.15% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F GREENBRIER COS INC COM STK COM 393657101 89,064 1,015 1.15 4,689 13.95 0.0040
2026-02-13 2025-12-31 13F GREENBRIER COS INC COM STK COM 393657101 88,049 -67 -0.08 4,115 1.16 0.0033
2025-11-06 2025-09-30 13F GREENBRIER COS INC COM STK COM 393657101 88,116 -3,118 -3.42 4,068 -3.17 0.0033
2025-08-12 2025-06-30 13F GREENBRIER COS INC COM STK COM 393657101 91,234 1,129 1.25 4,201 -8.97 0.0036
2025-05-29 2025-03-31 13F/A-1 GREENBRIER COS INC COM STK COM 393657101 90,105 -3,790 -4.04 4,615 -19.40 0.0043
2025-04-08 2025-03-31 13F GREENBRIER COS INC COM STK COM 393657101 90,105 -3,790 4,615 0.0043
2025-05-29 2024-12-31 13F/A-1 GREENBRIER COS INC COM STK COM 393657101 93,895 -7,551 -7.44 5,727 10.93 0.0051
2025-01-30 2024-12-31 13F GREENBRIER COS INC COM STK COM 393657101 93,895 -7,551 5,727 0.0051
2024-11-12 2024-09-30 13F GREENBRIER COS INC COM STK COM 393657101 101,446 -2,092 -2.02 5,163 0.62 0.0047
2024-08-01 2024-06-30 13F GREENBRIER COS INC COM STK COM 393657101 103,538 -765 -0.73 5,130 -5.59 0.0048
2024-05-09 2024-03-31 13F GREENBRIER COS INC COM STK COM 393657101 104,303 -216 -0.21 5,434 17.70 0.0052
2024-02-08 2023-12-31 13F GREENBRIER COS INC COM STK COM 393657101 104,519 -217 -0.21 4,618 10.22 0.0048
2023-11-09 2023-09-30 13F GREENBRIER COS INC COM STK COM 393657101 104,736 -3,427 -3.17 4,189 -10.13 0.0049
2023-08-08 2023-06-30 13F GREENBRIER COS INC COM STK COM 393657101 108,163 -3,385 -3.03 4,662 155,266.67 0.0052
2023-05-11 2023-03-31 13F GREENBRIER COS INC COM STK COM 393657101 111,548 4,108 3.82 4 -99.92 0.0044
2023-02-14 2022-12-31 13F GREENBRIER COS INC COM STK COM 393657101 107,440 2,198 2.09 3,602 41.03 0.0048
2022-11-10 2022-09-30 13F GREENBRIER COS INC COM STK COM 393657101 105,242 5,574 5.59 2,554 -28.80 0.0038
2022-08-11 2022-06-30 13F GREENBRIER COS INC COM STK COM 393657101 99,668 4,107 4.30 3,587 -27.12 0.0052
2022-05-12 2022-03-31 13F GREENBRIER COS INC COM STK COM 393657101 95,561 2,737 2.95 4,922 15.54 0.0063
2022-02-10 2021-12-31 13F GREENBRIER COS INC COM STK COM 393657101 92,824 -1,582 -1.68 4,260 4.95 0.0052
2021-11-12 2021-09-30 13F GREENBRIER COS INC COM STK COM 393657101 94,406 -13,430 -12.45 4,059 -13.62 0.0055
2021-08-05 2021-06-30 13F GREENBRIER COS INC COM STK COM 393657101 107,836 -4,745 -4.21 4,699 -11.61 0.0062
2021-05-06 2021-03-31 13F GREENBRIER COS INC COM STK COM 393657101 112,581 854 0.76 5,316 30.77 0.0072
2021-02-10 2020-12-31 13F GREENBRIER COS INC COM STK COM 393657101 111,727 7,920 7.63 4,065 33.19 0.0056
2020-11-12 2020-09-30 13F GREENBRIER COS INC COM STK COM 393657101 103,807 -10,108 -8.87 3,052 17.75 0.0048
2020-08-13 2020-06-30 13F GREENBRIER COS INC COM STK COM 393657101 113,915 -10,322 -8.31 2,592 17.60 0.0043
2020-05-06 2020-03-31 13F GREENBRIER COS INC COM STK COM 393657101 124,237 7,273 6.22 2,204 -41.89 0.0046
2020-02-05 2019-12-31 13F GREENBRIER COS INC COM STK COM 393657101 116,964 6,785 6.16 3,793 14.28 0.0063
2019-10-23 2019-09-30 13F GREENBRIER COS INC COM STK COM 393657101 110,179 6,649 6.42 3,319 5.47 0.0061
2019-08-14 2019-06-30 13F GREENBRIER COS INC COM STK COM 393657101 103,530 3,151 3.14 3,147 -2.72 0.0059
2019-05-01 2019-03-31 13F GREENBRIER COS INC COM STK COM 393657101 100,379 2,949 3.03 3,235 -16.02 0.0063
2019-01-31 2018-12-31 13F GREENBRIER COS INC COM STK COM 393657101 97,430 16,086 19.78 3,852 -21.21 0.0084
2018-11-07 2018-09-30 13F GREENBRIER COS INC COM STK COM 393657101 81,344 5,036 6.60 4,889 21.47 0.0094
2018-08-06 2018-06-30 13F GREENBRIER COS INC COM STK COM 393657101 76,308 3,771 5.20 4,025 10.43 0.0081
2018-05-02 2018-03-31 13F GREENBRIER COS INC COM STK COM 393657101 72,537 1,619 2.28 3,645 -3.57 0.0076
2018-02-09 2017-12-31 13F GREENBRIER COS INC COM STK COM 393657101 70,918 9,605 15.67 3,780 28.05 0.0077
2017-11-06 2017-09-30 13F GREENBRIER COS INC COM STK COM 393657101 61,313 1,190 1.98 2,952 6.15 0.0064
2017-08-02 2017-06-30 13F GREENBRIER COS INC COM STK COM 393657101 60,123 -288 -0.48 2,781 6.80 0.0063
2017-05-02 2017-03-31 13F GREENBRIER COS INC COM STK COM 393657101 60,411 16,029 36.12 2,604 41.21 0.0061
2017-01-27 2016-12-31 13F GREENBRIER COS INC COM STK COM 393657101 44,382 -1,847 -4.00 1,844 12.99 0.0047
2016-11-08 2016-09-30 13F GREENBRIER COS INC COM STK COM 393657101 46,229 2,760 6.35 1,632 28.91 0.0045
2016-08-11 2016-06-30 13F GREENBRIER COS INC COM STK COM 393657101 43,469 6,975 19.11 1,266 25.47 0.0038
2016-05-02 2016-03-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 36,494 -1,065 -2.84 1,009 -17.63 0.0031
2016-02-03 2015-12-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 37,559 6,470 20.81 1,225 22.75 0.0039
2015-11-04 2015-09-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 31,089 434 1.42 998 -30.50 0.0034
2015-08-04 2015-06-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 30,655 -2,125 -6.48 1,436 -24.46 0.0046
2015-05-12 2015-03-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 32,780 3,230 10.93 1,901 19.71 0.0055
2015-02-06 2014-12-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 29,550 -925 -3.04 1,588 -28.98 0.0046
2014-11-12 2014-09-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 30,475 -250 -0.81 2,236 26.33 0.0067
2014-08-06 2014-06-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 30,725 -8,426 -21.52 1,770 -0.84 0.0052
2014-05-06 2014-03-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 39,151 -1,590 -3.90 1,785 33.41 0.0053
2014-02-03 2013-12-31 13F GREENBRIER COMPANIES INC COMMO COM 393657101 40,741 -2,200 -5.12 1,338 25.99 0.0039
2013-11-05 2013-09-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 42,941 -275 -0.64 1,062 0.85 0.0033
2013-08-07 2013-06-30 13F GREENBRIER COMPANIES INC COMMO COM 393657101 43,216 43,216 1,053 0.0034
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.