AAR Corp.
DE ˙ DB ˙ US0003611052
98,45 € ↑3,45 (3,63%)
2026-06-05
DEL PRIS
SecurityDE:ARZ / AAR Corp.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership43,863 shares
Latest Disclosed Value $ 4,801,244
Bnp Paribas Arbitrage, Sa reports 18.33% decrease in ownership of ARZ / AAR Corp.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 43,863 shares of AAR Corp. (DE:ARZ) valued at $3,941,091 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 53,707 shares of AAR Corp.. This represents a change in shares of -18.33% during the quarter. The current value of the position is $4,318,312 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 Equity 000361105 43,863 -9,844 -18.33 4,801 7.98 0.0002
2026-02-10 2025-12-31 13F AAR Equity 000361105 53,707 41,301 332.91 4,446 299.82 0.0020
2025-11-13 2025-09-30 13F AAR Equity 000361105 12,406 -14,454 -53.81 1,112 -39.79 0.0006
2025-08-14 2025-06-30 13F AAR Equity 000361105 26,860 20,382 314.63 1,848 410.22 0.0011
2025-05-14 2025-03-31 13F AAR Equity 000361105 6,478 -15,664 -70.74 363 -73.30 0.0002
2025-02-14 2024-12-31 13F AAR Equity 000361105 22,142 -311 -1.39 1,357 -7.57 0.0008
2024-11-13 2024-09-30 13F AAR Equity 000361105 22,453 -12,502 -35.77 1,468 -42.27 0.0010
2024-08-13 2024-06-30 13F AAR Equity 000361105 34,955 -38,009 -52.09 2,541 -41.83 0.0021
2024-05-01 2024-03-31 13F AAR Equity 000361105 72,964 13,631 22.97 4,368 17.99 0.0038
2024-02-14 2023-12-31 13F/A-2 AAR Equity 000361105 59,333 28,485 92.34 3,702 101.63 0.0042
2024-02-07 2023-12-31 13F/A-1 AAR Equity 000361105 59,333 28,485 3,702 0.0005
2024-02-07 2023-12-31 13F AAR Equity 000361105 59,333 3,702
2023-11-14 2023-09-30 13F AAR Equity 000361105 30,848 9,260 42.89 1,836 47.35 0.0024
2023-08-09 2023-06-30 13F AAR Equity 000361105 21,588 -10,156 -31.99 1,247 -28.02 0.0016
2023-05-12 2023-03-31 13F AAR EQUITY 000361105 31,744 6,080 23.69 1,732 50.26 0.0024
2023-02-14 2022-12-31 13F AAR Equity 000361105 25,664 -10,917 -29.84 1,152 -12.06 0.0018
2022-11-16 2022-09-30 13F/A-1 AAR Equity 000361105 36,581 -16,079 -30.53 1,310 -40.54 0.0021
2022-11-15 2022-09-30 13F AAR Equity 000361105 36,581 -16,079 1,310 0.0003
2022-08-12 2022-06-30 13F AAR Equity 000361105 52,660 21,571 69.38 2,203 46.38 0.0034
2022-05-18 2022-03-31 13F/A-1 AAR Equity 000361105 31,089 -54,649 -63.74 1,506 -55.02 0.0020
2022-02-09 2021-12-31 13F AAR EQUITY 000361105 85,738 6,417 8.09 3,346 30.09 0.0048
2021-11-16 2021-09-30 13F/A-1 AAR EQUITY 000361105 79,321 4,939 6.64 2,572 -10.76 0.0036
2021-11-12 2021-09-30 13F AAR EQUITY 000361105 8,511 -65,871 160 0.0000
2021-08-10 2021-06-30 13F AAR EQUITY 000361105 74,382 16,694 28.94 2,882 19.98 0.0038
2021-05-07 2021-03-31 13F AAR EQUITY 000361105 57,688 29,753 106.51 2,403 137.59 0.0035
2021-02-10 2020-12-31 13F AAR EQUITY 000361105 27,935 19,424 228.22 1,012 531.88 0.0019
2020-10-30 2020-09-30 13F AAR EQUITY 000361105 8,511 -14,689 -63.31 160 -66.60 0.0002
2020-08-06 2020-06-30 13F AAR EQUITY 000361105 23,200 9,117 64.74 480 91.60 0.0008
2020-05-13 2020-03-31 13F AAR EQUITY 000361105 14,083 967 7.37 250 -57.70 0.0005
2020-02-12 2019-12-31 13F AAR EQUITY 000361105 13,116 7,127 119.00 592 140.24 0.0011
2019-11-07 2019-09-30 13F AAR EQUITY 000361105 5,989 1,592 36.21 247 52.80 0.0004
2019-07-30 2019-06-30 13F AAR EQUITY 000361105 4,397 -3,195 -42.08 162 -34.55 0.0003
2019-04-25 2019-03-31 13F AAR EQUITY 000361105 7,592 4,505 145.93 247 113.91 0.0005
2019-02-12 2018-12-31 13F AAR EQUITY 000361105 3,087 1,194 63.07 115 27.78 0.0003
2018-11-07 2018-09-30 13F AAR EQUITY 000361105 1,893 144 8.23 91 11.11 0.0001
2018-07-25 2018-06-30 13F AAR EQUITY 000361105 1,749 -8,870 -83.53 81 -82.69 0.0001
2018-05-11 2018-03-31 13F AAR EQUITY 000361105 10,619 -54,099 -83.59 468 -81.59 0.0009
2018-03-05 2017-12-31 13F/A-1 AAR EQUITY 000361105 64,718 47,173 268.87 2,543 283.99 0.0045
2018-02-01 2017-12-31 13F AAR EQUITY 000361105 64,718 47,173 2,543
2017-11-03 2017-09-30 13F AAR STOCK 000361105 17,545 7,382 72.64 663 87.54 0.0016
2017-08-03 2017-06-30 13F AAR STOCK 000361105 10,163 3,584 54.48 353 59.73 0.0011
2017-05-03 2017-03-31 13F AAR STOCK 000361105 6,579 715 12.19 221 14.51 0.0006
2017-02-14 2016-12-31 13F AAR STOCK 000361105 5,864 181 3.18 194 9.04 0.0009
2016-10-05 2016-09-30 13F * AAR CORP COM STOCK 000361105 5,683 -5,182 -47.69 178 -30.04 0.0007
2016-07-06 2016-06-30 13F * AAR CORP COM STOCK 000361105 10,865 5,462 101.09 254 102.40 0.0011
2016-04-22 2016-03-31 13F * AAR CORP COM STOCK 000361105 5,403 1,655 44.16 126 27.55 0.0005
2016-04-19 2015-12-31 13F/A-1 * AAR CORP COM STOCK 000361105 3,748 -4,014 -51.71 99 -33.33 0.0005
2016-02-10 2015-12-31 13F * AAR CORP COM STOCK 000361105 3,748 99
2015-11-13 2015-09-30 13F * AAR CORP COM STOCK 000361105 7,762 3,745 93.23 147 14.84 0.0004
2015-08-14 2015-06-30 13F AAR CORP COM STOCK 000361105 4,017 3,080 328.71 128 357.14 0.0004
2015-05-15 2015-03-31 13F * AAR CORP COM STOCK 000361105 937 937 0.00 29 0.0001
2015-02-11 2014-12-31 13F * AAR CORP COM STOCK 000361105 0 -2,320 -100.00 0 -100.00
2014-11-12 2014-09-30 13F * AAR CORP COM STOCK 000361105 2,320 2,166 1,406.49 56 1,300.00 0.0000
2014-08-14 2014-06-30 13F/A-1 * AAR CORP COM STOCK 000361105 154 -361 -70.10 4 -71.43 0.0000
2014-08-14 2014-06-30 13F AAR CORP COM STOCK 000361105 154 4
2014-04-02 2013-12-31 13F/A-1 AAR STOCK 000361105 515 -10,161 -95.18 14 -95.19 0.0000
2013-11-13 2013-09-30 13F AAR STOCK 000361105 10,676 -3,168 -22.88 292 -4.28 0.0002
2013-08-13 2013-06-30 13F AAR STOCK 000361105 13,844 13,844 304 0.0002
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.