Blue Bird Corporation
DE ˙ DB ˙ US0953061068
60,60 € ↓ -0,48 (-0,79%)
2026-06-05
DEL PRIS
SecurityDE:4RB / Blue Bird Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership170,912 shares
Latest Disclosed Value $ 9,706,090
Marshall Wace, Llp reports 44.21% decrease in ownership of 4RB / Blue Bird Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 170,912 shares of Blue Bird Corporation (DE:4RB) valued at $7,964,499 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 306,370 shares of Blue Bird Corporation. This represents a change in shares of -44.21% during the quarter. The current value of the position is $10,357,267 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.

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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)
2026-05-14 2026-03-31 13F BLUE BIRD COMMON STOCK 095306106 170,912 -135,458 -44.21 9,706 -32.59 0.0097
2026-02-13 2025-12-31 13F BLUE BIRD COMMON STOCK 095306106 306,370 -118,844 -27.95 14,399 -41.16 0.0131
2025-11-13 2025-09-30 13F BLUE BIRD COMMON STOCK 095306106 425,214 337,196 383.10 24,471 544.31 0.0248
2025-08-13 2025-06-30 13F BLUE BIRD COMMON STOCK 095306106 88,018 88,018 3,799 0.0043
2025-05-15 2025-03-31 13F BLUE BIRD COMMON STOCK 095306106 0 -8,698 -100.00 0 -100.00
2025-02-13 2024-12-31 13F BLUE BIRD COMMON STOCK 095306106 8,698 -129,702 -93.72 336 -94.94 0.0004
2024-11-14 2024-09-30 13F BLUE BIRD COMMON STOCK 095306106 138,400 -285,190 -67.33 6,638 -70.90 0.0081
2024-08-14 2024-06-30 13F BLUE BIRD COMMON STOCK 095306106 423,590 -252,257 -37.32 22,810 -11.97 0.0305
2024-05-15 2024-03-31 13F BLUE BIRD COMMON STOCK 095306106 675,847 -321,160 -32.21 25,912 -3.60 0.0395
2024-02-14 2023-12-31 13F BLUE BIRD COMMON STOCK 095306106 997,007 313,987 45.97 26,879 84.33 0.0455
2023-11-14 2023-09-30 13F BLUE BIRD COMMON STOCK 095306106 683,020 52,381 8.31 14,582 2.86 0.0295
2023-08-14 2023-06-30 13F BLUE BIRD COMMON STOCK 095306106 630,639 630,639 14,177 0.0277
2020-05-15 2020-03-31 13F BLUE BIRD COMMON STOCK 095306106 0 -29,065 -100.00 0 -100.00
2020-02-14 2019-12-31 13F BLUE BIRD COMMON STOCK 095306106 29,065 29,065 666 0.0046
2019-05-14 2019-03-31 13F BLUE BIRD COMMON STOCK 095306106 0 -6,946 -100.00 0 -100.00
2019-02-14 2018-12-31 13F BLUE BIRD COMMON STOCK 095306106 6,946 6,946 126 0.0013
2018-08-14 2018-06-30 13F BLUE BIRD COMMON STOCK 095306106 0 -15,700 -100.00 0 -100.00
2018-05-15 2018-03-31 13F BLUE BIRD COMMON STOCK 095306106 15,700 15,700 372 0.0154
2016-08-12 2016-06-30 13F HENNESSY CA-CW19 EQUITY WRT 095306114 0 -150,000 -100.00 0 -100.00
2016-05-13 2016-03-31 13F HENNESSY CA-CW19 EQUITY WRT 095306114 150,000 0 0.00 150 11.11 0.0014
2016-02-10 2015-12-31 13F HENNESSY CA-CW19 EQUITY WRT 095306114 150,000 0 0.00 135 12.50 0.0013
2015-11-12 2015-09-30 13F HENNESSY CA-CW19 EQUITY WRT 095306114 150,000 0 0.00 120 -44.95 0.0015
2015-08-14 2015-06-30 13F HENNESSY CA-CW19 EQUITY WRT 095306114 150,000 150,000 218 0.0028
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.