Blue Bird Corporation
DE ˙ DB ˙ US0953061068
61,46 € ↑3,44 (5,93%)
2026-06-03
AKTIENPREIS
SecurityDE:4RB / Blue Bird Corporation
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership367,540 shares
Latest Disclosed Value $ 20,872,597
Renaissance Technologies Llc reports 11.53% decrease in ownership of 4RB / Blue Bird Corporation

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 367,540 shares of Blue Bird Corporation (DE:4RB) valued at $17,127,364 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 415,440 shares of Blue Bird Corporation. This represents a change in shares of -11.53% during the quarter. The current value of the position is $22,589,008 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 COM 095306106 367,540 -47,900 -11.53 20,873 6.90 0.0326
2026-02-12 2025-12-31 13F BLUE BIRD COM 095306106 415,440 65,600 18.75 19,526 -3.02 0.0303
2025-11-13 2025-09-30 13F BLUE BIRD COM 095306106 349,840 219,904 169.24 20,133 259.00 0.0266
2025-08-13 2025-06-30 13F BLUE BIRD COM 095306106 129,936 -24,200 -15.70 5,608 12.41 0.0075
2025-05-14 2025-03-31 13F BLUE BIRD COM 095306106 154,136 -112,326 -42.15 4,989 -51.53 0.0076
2025-02-13 2024-12-31 13F BLUE BIRD COM 095306106 266,462 -215,659 -44.73 10,293 -55.48 0.0152
2024-11-13 2024-09-30 13F BLUE BIRD COM 095306106 482,121 -27,301 -5.36 23,123 -15.71 0.0348
2024-08-09 2024-06-30 13F BLUE BIRD COM 095306106 509,422 229,004 81.67 27,432 274,220.00 0.0465
2024-05-13 2024-03-31 13F BLUE BIRD COM 095306106 280,418 -34,504 -10.96 11 25.00 0.0169
2024-02-13 2023-12-31 13F BLUE BIRD COM 095306106 314,922 99,504 46.19 8 100.00 0.0131
2023-11-14 2023-09-30 13F BLUE BIRD COM 095306106 215,418 -140,704 -39.51 5 -50.00 0.0078
2023-08-11 2023-06-30 13F BLUE BIRD COM 095306106 356,122 221,204 163.95 8 300.00 0.0115
2023-05-12 2023-03-31 13F BLUE BIRD COM 095306106 134,918 18,400 15.79 3 100.00 0.0037
2023-02-13 2022-12-31 13F BLUE BIRD COM 095306106 116,518 -17,700 -13.19 1 -99.91 0.0017
2022-11-14 2022-09-30 13F BLUE BIRD COM 095306106 134,218 -21,700 -13.92 1,121 -21.94 0.0016
2022-08-12 2022-06-30 13F BLUE BIRD COM 095306106 155,918 -48,100 -23.58 1,436 -62.60 0.0017
2022-05-13 2022-03-31 13F BLUE BIRD COM 095306106 204,018 -88,604 -30.28 3,840 -16.10 0.0045
2022-02-11 2021-12-31 13F BLUE BIRD COM 095306106 292,622 -17,596 -5.67 4,577 -29.27 0.0057
2021-11-12 2021-09-30 13F BLUE BIRD COM 095306106 310,218 -86,000 -21.71 6,471 -34.30 0.0084
2021-08-13 2021-06-30 13F BLUE BIRD COM 095306106 396,218 -111,600 -21.98 9,850 -22.51 0.0123
2021-05-13 2021-03-31 13F BLUE BIRD COM 095306106 507,818 -119,504 -19.05 12,711 10.96 0.0158
2021-02-10 2020-12-31 13F BLUE BIRD COM 095306106 627,322 9,200 1.49 11,455 52.41 0.0124
2020-11-13 2020-09-30 13F BLUE BIRD COM 095306106 618,122 19,304 3.22 7,516 -16.27 0.0075
2020-08-13 2020-06-30 13F BLUE BIRD COM 095306106 598,818 -51,600 -7.93 8,976 26.26 0.0077
2020-05-14 2020-03-31 13F BLUE BIRD COM 095306106 650,418 -73,586 -10.16 7,109 -57.16 0.0069
2020-02-13 2019-12-31 13F BLUE BIRD COM 095306106 724,004 228,404 46.09 16,594 75.90 0.0128
2019-11-13 2019-09-30 13F BLUE BIRD COM 095306106 495,600 47,500 10.60 9,434 6.93 0.0080
2019-08-12 2019-06-30 13F BLUE BIRD COM 095306106 448,100 -19,800 -4.23 8,823 11.37 0.0078
2019-05-14 2019-03-31 13F BLUE BIRD COM 095306106 467,900 56,900 13.84 7,922 5.97 0.0072
2019-02-12 2018-12-31 13F BLUE BIRD COM 095306106 411,000 -24,800 -5.69 7,476 -29.98 0.0082
2018-11-13 2018-09-30 13F BLUE BIRD COM 095306106 435,800 15,000 3.56 10,677 13.52 0.0110
2018-08-13 2018-06-30 13F/A-1 BLUE BIRD COM 095306106 420,800 -92,400 -18.00 9,405 -22.68 0.0103
2018-08-13 2018-06-30 13F BLUE BIRD COM 095306106 513,200 12,163
2018-05-14 2018-03-31 13F BLUE BIRD COM 095306106 513,200 -80,400 -13.54 12,163 2.96 0.0133
2018-02-13 2017-12-31 13F BLUE BIRD COM 095306106 593,600 193,587 48.40 11,813 43.36 0.0130
2017-11-13 2017-09-30 13F BLUE BIRD COM 095306106 400,013 125,693 45.82 8,240 76.71 0.0097
2017-08-11 2017-06-30 13F BLUE BIRD COM 095306106 274,320 -14,880 -5.15 4,663 -5.99 0.0060
2017-05-12 2017-03-31 13F BLUE BIRD COM 095306106 289,200 16,600 6.09 4,960 17.76 0.0069
2017-02-13 2016-12-31 13F BLUE BIRD COM 095306106 272,600 135,100 98.25 4,212 109.66 0.0067
2016-11-14 2016-09-30 13F BLUE BIRD COM 095306106 137,500 137,500 2,009 0.0036
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.