Blue Bird Corporation
DE ˙ DB ˙ US0953061068
61,46 € ↑3,44 (5,93%)
2026-06-03
DEL PRIS
SecurityDE:4RB / Blue Bird Corporation
InstitutionUBS Group AG
Latest Disclosed Ownership89,403 shares
Latest Disclosed Value $ 5,077,197
UBS Group AG reports 67.82% decrease in ownership of 4RB / Blue Bird Corporation

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 89,403 shares of Blue Bird Corporation (DE:4RB) valued at $4,166,180 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 277,796 shares of Blue Bird Corporation. This represents a change in shares of -67.82% during the quarter. The current value of the position is $5,494,708 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F BLUE BIRD COM 095306106 89,403 -188,393 -67.82 5,077 -61.11 0.0001
2026-01-29 2025-12-31 13F BLUE BIRD COM 095306106 277,796 171,642 161.69 13,056 113.72 0.0004
2025-11-13 2025-09-30 13F BLUE BIRD COM 095306106 106,154 -169,634 -61.51 6,109 -48.68 0.0010
2025-08-14 2025-06-30 13F BLUE BIRD COM 095306106 275,788 -170,928 -38.26 11,903 -17.68 0.0021
2025-05-13 2025-03-31 13F BLUE BIRD COM 095306106 446,716 200,671 81.56 14,460 52.15 0.0027
2025-02-14 2024-12-31 13F BLUE BIRD COM 095306106 246,045 165,832 206.74 9,505 147.05 0.0018
2024-11-14 2024-09-30 13F BLUE BIRD COM 095306106 80,213 -8,724 -9.81 3,847 -19.67 0.0008
2024-08-14 2024-06-30 13F BLUE BIRD COM 095306106 88,937 53,603 151.70 4,789 253.69 0.0012
2024-05-13 2024-03-31 13F BLUE BIRD COM 095306106 35,334 11,222 46.54 1,355 108.31 0.0003
2024-02-09 2023-12-31 13F BLUE BIRD COM 095306106 24,112 21,039 684.64 650 900.00 0.0002
2023-11-09 2023-09-30 13F BLUE BIRD COM 095306106 3,073 -32,724 -91.42 66 -91.92 0.0000
2023-08-11 2023-06-30 13F BLUE BIRD COM 095306106 35,797 32,747 1,073.67 805 1,196.77 0.0003
2023-05-12 2023-03-31 13F BLUE BIRD COM 095306106 3,050 -2,837 -48.19 62 -1.59 0.0000
2023-02-08 2022-12-31 13F BLUE BIRD COM 095306106 5,887 2,237 61.29 63 110.00 0.0000
2022-11-10 2022-09-30 13F BLUE BIRD COM 095306106 3,650 0 0.00 30 -11.76 0.0000
2022-08-10 2022-06-30 13F BLUE BIRD COM 095306106 3,650 -5,044 -58.02 34 -79.27 0.0000
2022-05-16 2022-03-31 13F BLUE BIRD COM 095306106 8,694 -973 -10.07 164 8.61 0.0001
2022-02-14 2021-12-31 13F BLUE BIRD COM 095306106 9,667 5,805 150.31 151 86.42 0.0000
2021-11-15 2021-09-30 13F BLUE BIRD COM 095306106 3,862 -438 -10.19 81 -24.30 0.0000
2021-08-13 2021-06-30 13F BLUE BIRD COM 095306106 4,300 -9,612 -69.09 107 -69.34 0.0000
2021-05-12 2021-03-31 13F BLUE BIRD COM 095306106 13,912 -4,416 -24.09 349 4.18 0.0001
2021-02-11 2020-12-31 13F BLUE BIRD COM 095306106 18,328 2,358 14.77 335 72.68 0.0001
2020-11-12 2020-09-30 13F BLUE BIRD COM 095306106 15,970 -531 -3.22 194 -21.46 0.0001
2020-07-31 2020-06-30 13F BLUE BIRD COM 095306106 16,501 -13,166 -44.38 247 -23.77 0.0001
2020-05-01 2020-03-31 13F BLUE BIRD COM 095306106 29,667 -10,249 -25.68 324 -64.59 0.0002
2020-02-14 2019-12-31 13F BLUE BIRD COM 095306106 39,916 26,697 201.96 915 264.54 0.0003
2019-11-14 2019-09-30 13F BLUE BIRD COM 095306106 13,219 8,469 178.29 251 167.02 0.0001
2019-08-14 2019-06-30 13F BLUE BIRD COM 095306106 4,750 2,967 166.40 94 213.33 0.0000
2019-05-14 2019-03-31 13F BLUE BIRD COM 095306106 1,783 -7,036 -79.78 30 -81.25 0.0000
2019-02-14 2018-12-31 13F BLUE BIRD COM 095306106 8,819 -391 -4.25 160 -28.89 0.0001
2018-11-14 2018-09-30 13F BLUE BIRD COM 095306106 9,210 6,071 193.41 225 221.43 0.0001
2018-08-14 2018-06-30 13F BLUE BIRD COM 095306106 3,139 3,139 70 0.0000
2018-05-15 2018-03-31 13F BLUE BIRD COM 095306106 0 -338 -100.00 0 -100.00
2018-02-14 2017-12-31 13F BLUE BIRD COM 095306106 338 -2,254 -86.96 7 -86.79 0.0000
2017-11-14 2017-09-30 13F BLUE BIRD COM 095306106 2,592 2,592 53 0.0000
2017-11-14 2017-06-30 13F/A-1 BLUE BIRD COM 095306106 0 -32 -100.00 0 -100.00
2017-11-14 2017-03-31 13F/A-1 BLUE BIRD COM 095306106 32 -1,313 -97.62 1 -95.24 0.0000
2017-05-12 2017-03-31 13F BLUE BIRD COM 095306106 32 -1,313 1
2017-02-14 2016-12-31 13F BLUE BIRD COM 095306106 1,345 694 106.61 21 110.00 0.0000
2016-11-14 2016-09-30 13F BLUE BIRD COM 095306106 651 651 0.00 10 0.0000
2016-05-12 2016-03-31 13F BLUE BIRD COM 095306106 0 -2,320 -100.00 0 -100.00
2016-02-16 2015-12-31 13F BLUE BIRD COM 095306106 2,320 -2,384 -50.68 24 -48.94 0.0000
2015-11-13 2015-09-30 13F BLUE BIRD COM 095306106 4,704 4,704 47 0.0000
2015-08-14 2015-06-30 13F BLUE BIRD *W EXP 01/23/201 095306114 0 -1,014 -100.00 0 -100.00
2015-05-14 2015-03-31 13F BLUE BIRD *W EXP 01/23/201 095306114 1,014 1,014 1 0.0000
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.