AAR Corp.
DE ˙ DB ˙ US0003611052
98,45 € ↑3,45 (3,63%)
2026-06-05
AKTIENPREIS
SecurityDE:ARZ / AAR Corp.
InstitutionMorgan Stanley
Latest Disclosed Ownership522,689 shares
Latest Disclosed Value $ 57,213,641
Morgan Stanley reports 10.20% increase in ownership of ARZ / AAR Corp.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 522,689 shares of AAR Corp. (DE:ARZ) valued at $46,963,607 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 474,321 shares of AAR Corp.. This represents a change in shares of 10.20% during the quarter. The current value of the position is $51,458,732 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)
2026-05-15 2026-03-31 13F AAR COM 000361105 522,689 48,368 10.20 57,214 45.70 0.0034
2026-05-27 2025-12-31 13F/A-1 AAR COM 000361105 474,321 65,810 16.11 39,269 7.20 0.0023
2026-02-13 2025-12-31 13F AAR COM 000361105 474,321 65,810 39,269 0.0023
2026-05-27 2025-09-30 13F/A-1 AAR COM 000361105 408,511 1,773 0.44 36,631 30.92 0.0022
2025-11-14 2025-09-30 13F AAR COM 000361105 408,511 1,773 36,631 0.0022
2025-08-15 2025-06-30 13F AAR COM 000361105 406,738 21,474 5.57 27,980 29.71 0.0018
2025-05-15 2025-03-31 13F AAR COM 000361105 385,264 11,052 2.95 21,571 -5.94 0.0015
2025-05-15 2024-12-31 13F/A-1 AAR COM 000361105 374,212 -54,758 -12.76 22,932 -18.21 0.0016
2025-02-14 2024-12-31 13F AAR COM 000361105 374,212 -54,758 22,932 0.0016
2025-05-14 2024-09-30 13F/A-2 AAR COM 000361105 428,970 42,203 10.91 28,038 -0.29 0.0020
2025-02-14 2024-09-30 13F/A-1 AAR COM 000361105 428,970 42,203 28,038 0.0020
2024-11-14 2024-09-30 13F AAR COM 000361105 428,970 42,203 28,038 0.0002
2025-05-14 2024-06-30 13F/A-2 AAR COM 000361105 386,767 -56,579 -12.76 28,118 5.93 0.0022
2024-10-17 2024-06-30 13F/A-1 AAR COM 000361105 386,767 -56,579 28,118 0.0022
2024-08-14 2024-06-30 13F AAR COM 000361105 386,767 -56,579 28,118 0.0022
2024-10-17 2024-03-31 13F/A-2 AAR COM 000361105 443,346 -245,648 -35.65 26,543 -38.26 0.0021
2024-08-16 2024-03-31 13F/A-1 AAR COM 000361105 443,346 -245,648 26,543 0.0002
2024-05-15 2024-03-31 13F AAR COM 000361105 443,346 -245,648 26,543 0.0021
2024-08-16 2023-12-31 13F/A-1 AAR COM 000361105 688,994 137,791 25.00 42,993 31.02 0.0038
2024-02-13 2023-12-31 13F AAR COM 000361105 688,994 137,791 42,993 0.0038
2023-11-15 2023-09-30 13F AAR COM 000361105 551,203 100,319 22.25 32,813 26.00 0.0033
2023-08-14 2023-06-30 13F AAR COM 000361105 450,884 80,972 21.89 26,043 29.07 0.0026
2023-05-15 2023-03-31 13F AAR COM 000361105 369,912 71,557 23.98 20,179 50.63 0.0022
2023-02-14 2022-12-31 13F AAR COM 000361105 298,355 -37,808 -11.25 13,396 11.23 0.0015
2022-11-14 2022-09-30 13F AAR COM 000361105 336,163 -50,045 -12.96 12,043 -25.47 0.0016
2022-10-27 2022-06-30 13F/A-1 AAR COM 000361105 386,208 224,539 138.89 16,159 106.37 0.0021
2022-08-15 2022-06-30 13F AAR COM 000361105 386,208 224,539 16,159 0.0021
2022-10-27 2022-03-31 13F/A-1 AAR COM 000361105 161,669 -42,382 -20.77 7,830 -1.69 0.0011
2022-05-13 2022-03-31 13F AAR COM 000361105 161,669 -42,382 7,830 0.0011
2022-02-14 2021-12-31 13F AAR COM 000361105 204,051 -169,605 -45.39 7,965 -34.27 0.0010
2021-11-15 2021-09-30 13F AAR COM 000361105 373,656 32,135 9.41 12,118 -8.44 0.0016
2021-08-23 2021-06-30 13F/A-1 AAR COM 000361105 341,521 227,634 199.88 13,235 179.04 0.0017
2021-08-16 2021-06-30 13F AAR COM 000361105 341,521 227,634 13,235 0.0004
2021-05-17 2021-03-31 13F AAR COM 000361105 113,887 -12,727 -10.05 4,743 3.42 0.0007
2021-02-16 2020-12-31 13F AAR COM 000361105 126,614 -130,905 -50.83 4,586 -5.27 0.0007
2020-11-13 2020-09-30 13F AAR COM 000361105 257,519 15,970 6.61 4,841 -3.04 0.0009
2020-08-14 2020-06-30 13F AAR COM 000361105 241,549 -189,639 -43.98 4,993 -34.79 0.0011
2020-05-26 2020-03-31 13F/A-1 AAR COM 000361105 431,188 235,909 120.81 7,657 -13.05 0.0021
2020-05-15 2020-03-31 13F AAR COM 000361105 431,188 235,909 7,657 588.2172
2020-02-14 2019-12-31 13F AAR COM 000361105 195,279 57,668 41.91 8,806 55.28 0.0020
2019-11-14 2019-09-30 13F AAR COM 000361105 137,611 -75,963 -35.57 5,671 -27.82 0.0015
2019-08-14 2019-06-30 13F AAR COM 000361105 213,574 48,090 29.06 7,857 46.04 0.0021
2019-05-15 2019-03-31 13F AAR COM 000361105 165,484 -61,772 -27.18 5,380 -36.59 0.0015
2019-02-14 2018-12-31 13F AAR COM 000361105 227,256 -104,748 -31.55 8,485 -46.64 0.0025
2019-04-23 2018-09-30 13F/A-2 AAR COM 000361105 332,004 214,917 183.55 15,900 192.06 0.0040
2018-11-20 2018-09-30 13F/A-1 AAR COM 000361105 332,004 0 15,900 0.0040
2018-11-14 2018-09-30 13F AAR COM 000361105 332,004 214,917 15,900
2019-04-23 2018-06-30 13F/A-1 AAR COM 000361105 117,087 30,992 36.00 5,444 43.38 0.0015
2018-08-14 2018-06-30 13F AAR COM 000361105 117,087 30,992 5,444
2019-04-23 2018-03-31 13F/A-1 AAR COM 000361105 86,095 -75,253 -46.64 3,797 -40.11 0.0011
2018-05-14 2018-03-31 13F AAR COM 000361105 86,095 -75,253 3,797
2019-04-23 2017-12-31 13F/A-1 AAR COM 000361105 161,348 -171,232 -51.49 6,340 -49.54 0.0017
2018-02-14 2017-12-31 13F AAR COM 000361105 161,348 -171,232 6,340
2017-11-14 2017-09-30 13F AAR COM 000361105 332,580 127,981 62.55 12,565 76.65 0.0038
2017-08-11 2017-06-30 13F AAR COM 000361105 204,599 135,645 196.72 7,113 206.73 0.0021
2017-05-22 2017-03-31 13F/A-1 AAR COM 000361105 68,954 -190,479 -73.42 2,319 -72.95 0.0007
2017-05-12 2017-03-31 13F AAR COM 000361105 68,954 2,319
2017-02-22 2016-12-31 13F/A-1 AAR COM 000361105 259,433 233,458 898.78 8,574 954.61 0.0028
2017-02-13 2016-12-31 13F AAR COM 000361105 259,433 8,574
2016-11-10 2016-09-30 13F AAR COM 000361105 25,975 -4,324 -14.27 813 15.16 0.0003
2016-08-12 2016-06-30 13F AAR COM 000361105 30,299 1,285 4.43 706 4.59 0.0003
2016-05-12 2016-03-31 13F AAR COM 000361105 29,014 -58,426 -66.82 675 -70.63 0.0003
2016-02-09 2015-12-31 13F AAR COM 000361105 87,440 -97,532 -52.73 2,298 -34.51 0.0008
2016-02-08 2015-09-30 13F/A-1 AAR COM 000361105 184,972 117,000 172.13 3,509 61.93 0.0013
2015-11-09 2015-09-30 13F AAR COM 000361105 184,972 3,509
2015-08-12 2015-06-30 13F AAR COM 000361105 67,972 -65,143 -48.94 2,167 -46.98 0.0008
2015-05-14 2015-03-31 13F AAR COM 000361105 133,115 44,505 50.23 4,087 66.00 0.0015
2015-02-13 2014-12-31 13F AAR COM 000361105 88,610 -16,875 -16.00 2,462 -3.34 0.0009
2014-12-16 2014-09-30 13F/A-1 AAR COM 000361105 105,485 35,061 49.79 2,547 31.22 0.0010
2014-11-14 2014-09-30 13F AAR COM 000361105 105,485 2,547
2014-08-12 2014-06-30 13F AAR COM 000361105 70,424 17,121 32.12 1,941 40.45 0.0033
2014-05-13 2014-03-31 13F AAR COM 000361105 53,303 -140,600 -72.51 1,382 -74.56 0.0006
2014-02-13 2013-12-31 13F AAR COM 000361105 193,903 -158,259 -44.94 5,432 -43.56 0.0023
2013-11-13 2013-09-30 13F AAR CORP COM ST COM 000361105 352,162 1,341 0.38 9,624 24.82 0.0045
2013-08-08 2013-06-30 13F AAR CORP COM ST COM 000361105 350,821 350,821 7,710 0.0039
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.