AAR Corp.
DE ˙ DB ˙ US0003611052
98,45 € ↑3,45 (3,63%)
2026-06-05
DEL PRIS
SecurityDE:ARZ / AAR Corp.
InstitutionRhumbline Advisers
Latest Disclosed Ownership111,709 shares
Latest Disclosed Value $ 12,227,639
Rhumbline Advisers reports 2.17% increase in ownership of ARZ / AAR Corp.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 111,709 shares of AAR Corp. (DE:ARZ) valued at $10,037,054 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 109,333 shares of AAR Corp.. This represents a change in shares of 2.17% during the quarter. The current value of the position is $10,997,751 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)
2026-05-12 2026-03-31 13F AAR CORP COM COM 000361105 111,709 2,376 2.17 12,228 35.09 0.0105
2026-02-13 2025-12-31 13F AAR CORP COM COM 000361105 109,333 -2,817 -2.51 9,052 -9.99 0.0073
2025-11-06 2025-09-30 13F AAR CORP COM COM 000361105 112,150 -450 -0.40 10,056 29.84 0.0081
2025-08-12 2025-06-30 13F AAR CORP COM COM 000361105 112,600 542 0.48 7,746 23.45 0.0066
2025-05-29 2025-03-31 13F/A-1 AAR CORP COM COM 000361105 112,058 -3,809 -3.29 6,274 -11.63 0.0059
2025-04-08 2025-03-31 13F AAR CORP COM COM 000361105 112,058 -3,809 6,274 0.0059
2025-05-29 2024-12-31 13F/A-1 AAR CORP COM COM 000361105 115,867 455 0.39 7,100 -5.87 0.0064
2025-01-30 2024-12-31 13F AAR CORP COM COM 000361105 115,867 455 7,100 0.0064
2024-11-12 2024-09-30 13F AAR CORP COM COM 000361105 115,412 -3,899 -3.27 7,543 -13.03 0.0068
2024-08-01 2024-06-30 13F AAR CORP COM COM 000361105 119,311 -1,595 -1.32 8,674 19.83 0.0082
2024-05-09 2024-03-31 13F AAR CORP COM COM 000361105 120,906 -6,770 -5.30 7,239 -9.14 0.0070
2024-02-08 2023-12-31 13F AAR CORP COM COM 000361105 127,676 -4,199 -3.18 7,967 1.48 0.0084
2023-11-09 2023-09-30 13F AAR CORP COM COM 000361105 131,875 1,764 1.36 7,850 4.46 0.0091
2023-08-08 2023-06-30 13F AAR CORP COM COM 000361105 130,111 -4,874 -3.61 7,515 107,257.14 0.0084
2023-05-11 2023-03-31 13F AAR CORP COM COM 000361105 134,985 3,837 2.93 7 -99.88 0.0091
2023-02-14 2022-12-31 13F AAR CORP COM COM 000361105 131,148 7,179 5.79 5,889 32.61 0.0079
2022-11-10 2022-09-30 13F AAR CORP COM COM 000361105 123,969 8,357 7.23 4,441 -8.19 0.0066
2022-08-11 2022-06-30 13F AAR CORP COM COM 000361105 115,612 5,506 5.00 4,837 -9.28 0.0071
2022-05-12 2022-03-31 13F AAR CORP COM COM 000361105 110,106 4,874 4.63 5,332 29.83 0.0069
2022-02-10 2021-12-31 13F AAR CORP COM COM 000361105 105,232 -1,252 -1.18 4,107 18.94 0.0050
2021-11-12 2021-09-30 13F AAR CORP COM COM 000361105 106,484 -12,447 -10.47 3,453 -25.08 0.0047
2021-08-05 2021-06-30 13F AAR CORP COM COM 000361105 118,931 -3,395 -2.78 4,609 -9.54 0.0060
2021-05-06 2021-03-31 13F AAR CORP COM COM 000361105 122,326 -430 -0.35 5,095 14.60 0.0069
2021-02-10 2020-12-31 13F AAR CORP COM COM 000361105 122,756 7,121 6.16 4,446 104.51 0.0061
2020-11-12 2020-09-30 13F AAR CORP COM COM 000361105 115,635 -7,325 -5.96 2,174 -14.48 0.0034
2020-08-13 2020-06-30 13F AAR CORP COM COM 000361105 122,960 -12,423 -9.18 2,542 5.74 0.0042
2020-05-06 2020-03-31 13F AAR CORP COM COM 000361105 135,383 9,643 7.67 2,404 -57.61 0.0050
2020-02-05 2019-12-31 13F AAR CORP COM COM 000361105 125,740 5,621 4.68 5,671 14.57 0.0095
2019-10-23 2019-09-30 13F AAR CORP COM COM 000361105 120,119 7,852 6.99 4,950 19.85 0.0090
2019-08-14 2019-06-30 13F AAR CORP COM COM 000361105 112,267 4,242 3.93 4,130 17.60 0.0078
2019-05-01 2019-03-31 13F AAR CORP COM COM 000361105 108,025 1,778 1.67 3,512 -11.47 0.0068
2019-01-31 2018-12-31 13F AAR CORP COM COM 000361105 106,247 17,985 20.38 3,967 -6.15 0.0086
2018-11-07 2018-09-30 13F AAR CORP COM COM 000361105 88,262 -709 -0.80 4,227 2.20 0.0082
2018-08-06 2018-06-30 13F AAR CORP COM COM 000361105 88,971 273 0.31 4,136 5.73 0.0083
2018-05-02 2018-03-31 13F AAR CORP COM COM 000361105 88,698 1,755 2.02 3,912 14.52 0.0082
2018-02-09 2017-12-31 13F AAR CORP COM COM 000361105 86,943 8,303 10.56 3,416 14.98 0.0069
2017-11-06 2017-09-30 13F AAR CORP COM COM 000361105 78,640 1,405 1.82 2,971 10.65 0.0065
2017-08-02 2017-06-30 13F AAR CORP COM COM 000361105 77,235 -1,088 -1.39 2,685 1.94 0.0061
2017-05-02 2017-03-31 13F AAR CORP COM COM 000361105 78,323 20,021 34.34 2,634 36.69 0.0062
2017-01-27 2016-12-31 13F AAR CORP COM COM 000361105 58,302 -2,468 -4.06 1,927 1.26 0.0049
2016-11-08 2016-09-30 13F AAR CORP COM COM 000361105 60,770 2,350 4.02 1,903 39.52 0.0052
2016-08-11 2016-06-30 13F AAR CORP COM COM 000361105 58,420 -12,469 -17.59 1,364 -17.33 0.0040
2016-05-02 2016-03-31 13F AAR CORP USD1. COM 000361105 70,889 5,772 8.86 1,650 -3.62 0.0051
2016-02-03 2015-12-31 13F AAR CORP USD1. COM 000361105 65,117 2,295 3.65 1,712 43.62 0.0055
2015-11-04 2015-09-30 13F AAR CORP USD1. COM 000361105 62,822 75 0.12 1,192 -40.40 0.0041
2015-08-04 2015-06-30 13F AAR CORP USD1. COM 000361105 62,747 -7,105 -10.17 2,000 -6.72 0.0064
2015-05-12 2015-03-31 13F AAR CORP USD1. COM 000361105 69,852 -310 -0.44 2,144 10.01 0.0062
2015-02-06 2014-12-31 13F AAR CORP USD1. COM 000361105 70,162 2,525 3.73 1,949 19.35 0.0057
2014-11-12 2014-09-30 13F AAR CORP USD1. COM 000361105 67,637 -100 -0.15 1,633 -12.53 0.0049
2014-08-06 2014-06-30 13F AAR CORP USD1. COM 000361105 67,737 -4,637 -6.41 1,867 -0.59 0.0055
2014-05-06 2014-03-31 13F AAR CORP USD1. COM 000361105 72,374 -1,240 -1.68 1,878 -8.92 0.0056
2014-02-03 2013-12-31 13F AAR CORP USD1. COM 000361105 73,614 -3,980 -5.13 2,062 -2.78 0.0061
2013-11-05 2013-09-30 13F AAR CORP USD1. COM 000361105 77,594 -1,522 -1.92 2,121 21.97 0.0066
2013-08-07 2013-06-30 13F AAR CORP USD1. COM 000361105 79,116 79,116 1,739 0.0056
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.