AAR Corp.
DE ˙ DB ˙ US0003611052
98,45 € ↑3,45 (3,63%)
2026-06-05
DEL PRIS
SecurityDE:ARZ / AAR Corp.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership401,035 shares
Latest Disclosed Value $ 43,897,291
Northern Trust Corp reports 4.83% increase in ownership of ARZ / AAR Corp.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 401,035 shares of AAR Corp. (DE:ARZ) valued at $36,032,995 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 382,540 shares of AAR Corp.. This represents a change in shares of 4.83% during the quarter. The current value of the position is $39,481,896 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 AAR COM 000361105 401,035 18,495 4.83 43,897 38.61 0.0012
2026-02-17 2025-12-31 13F AAR COM 000361105 382,540 6,681 1.78 31,670 -6.03 0.0008
2025-11-14 2025-09-30 13F AAR COM 000361105 375,859 -6,388 -1.67 33,703 28.18 0.0010
2025-08-13 2025-06-30 13F AAR COM 000361105 382,247 -5,187 -1.34 26,295 21.22 0.0036
2025-05-13 2025-03-31 13F AAR COM 000361105 387,434 -10,810 -2.71 21,692 -11.11 0.0032
2025-02-14 2024-12-31 13F AAR COM 000361105 398,244 -6,752 -1.67 24,404 -7.81 0.0035
2024-11-13 2024-09-30 13F AAR COM 000361105 404,996 11,864 3.02 26,471 -7.38 0.0043
2024-08-14 2024-06-30 13F AAR COM 000361105 393,132 -10,647 -2.64 28,581 18.23 0.0048
2024-05-14 2024-03-31 13F AAR COM 000361105 403,779 -24,426 -5.70 24,174 -9.53 0.0042
2024-02-13 2023-12-31 13F AAR COM 000361105 428,205 708 0.17 26,720 4.99 0.0048
2023-11-13 2023-09-30 13F AAR COM 000361105 427,497 -6,296 -1.45 25,449 1.57 0.0049
2023-08-11 2023-06-30 13F AAR COM 000361105 433,793 11,415 2.70 25,056 8.75 0.0048
2023-05-15 2023-03-31 13F AAR COM 000361105 422,378 -14,236 -3.26 23,041 17.53 0.0046
2023-02-13 2022-12-31 13F AAR COM 000361105 436,614 -2,060 -0.47 19,604 24.76 0.0041
2022-11-14 2022-09-30 13F AAR COM 000361105 438,674 -1,231 -0.28 15,713 -14.63 0.0036
2022-08-12 2022-06-30 13F AAR COM 000361105 439,905 -6,291 -1.41 18,406 -14.82 0.0039
2022-05-13 2022-03-31 13F AAR COM 000361105 446,196 -13,182 -2.87 21,609 20.53 0.0038
2022-02-08 2021-12-31 13F AAR COM 000361105 459,378 2,370 0.52 17,929 20.97 0.0029
2021-11-15 2021-09-30 13F AAR COM 000361105 457,008 -4,637 -1.00 14,821 -17.15 0.0026
2021-08-13 2021-06-30 13F AAR COM 000361105 461,645 62,464 15.65 17,889 7.60 0.0032
2021-05-12 2021-03-31 13F AAR COM 000361105 399,181 -22,665 -5.37 16,625 8.81 0.0031
2021-02-11 2020-12-31 13F AAR COM 000361105 421,846 -856,436 -67.00 15,279 -36.42 0.0030
2020-11-16 2020-09-30 13F AAR COM 000361105 1,278,282 -15,484 -1.20 24,032 -10.13 0.0053
2020-08-14 2020-06-30 13F AAR COM 000361105 1,293,766 1,967 0.15 26,741 16.55 0.0063
2020-05-14 2020-03-31 13F AAR COM 000361105 1,291,799 2,506 0.19 22,943 -60.54 0.0066
2020-02-14 2019-12-31 13F AAR COM 000361105 1,289,293 -21,487 -1.64 58,146 7.64 0.0130
2019-11-13 2019-09-30 13F AAR COM 000361105 1,310,780 34,760 2.72 54,017 15.07 0.0129
2019-08-13 2019-06-30 13F AAR COM 000361105 1,276,020 10,596 0.84 46,944 14.11 0.0111
2019-05-13 2019-03-31 13F AAR COM 000361105 1,265,424 -733 -0.06 41,140 -12.98 0.0102
2019-02-12 2018-12-31 13F AAR COM 000361105 1,266,157 7,454 0.59 47,279 -21.57 0.0133
2018-11-14 2018-09-30 13F AAR COM 000361105 1,258,703 -52,770 -4.02 60,280 -1.13 0.0148
2018-09-18 2018-06-30 13F/A-1 AAR COM 000361105 1,311,473 38,166 3.00 60,970 8.56 0.0155
2018-08-14 2018-06-30 13F AAR COM 000361105 1,313,780 40,473 61,077
2018-05-09 2018-03-31 13F AAR COM 000361105 1,273,307 1,860 0.15 56,165 12.43 0.0146
2018-02-14 2017-12-31 13F AAR COM 000361105 1,271,447 -8,791 -0.69 49,955 3.28 0.0127
2017-11-13 2017-09-30 13F AAR COM 000361105 1,280,238 2,144 0.17 48,367 8.87 0.0126
2017-08-11 2017-06-30 13F AAR COM 000361105 1,278,094 57,466 4.71 44,427 8.23 0.0124
2017-05-12 2017-03-31 13F AAR COM 000361105 1,220,628 5,080 0.42 41,050 2.18 0.0118
2017-02-13 2016-12-31 13F AAR COM 000361105 1,215,548 6,178 0.51 40,174 6.06 0.0123
2016-11-09 2016-09-30 13F AAR COM 000361105 1,209,370 19,232 1.62 37,878 36.36 0.0118
2016-08-12 2016-06-30 13F AAR COM 000361105 1,190,138 -7,681 -0.64 27,778 0.04 0.0090
2016-08-19 2016-03-31 13F/A-1 AAR COM 000361105 1,197,819 4,182 0.35 27,767 -11.52 0.0092
2016-05-13 2016-03-31 13F Aar COMM 000361105 1,197,819 27,873
2016-02-12 2015-12-31 13F Aar COMM 000361105 1,193,637 -18,417 -1.52 31,381 36.47 0.0104
2015-11-12 2015-09-30 13F Aar COMM 000361105 1,212,054 -11,335 -0.93 22,994 -41.02 0.0077
2015-08-13 2015-06-30 13F AAR COM 000361105 1,223,389 -51,531 -4.04 38,989 -0.38 0.0264
2015-08-13 2015-06-30 13F Aar COMM 000036110 24,700 -1,250,220 787 0.0005
2015-05-14 2015-03-31 13F Aar COMM 000361105 1,274,920 95,332 8.08 39,139 19.44 0.0118
2015-02-12 2014-12-31 13F AAR COM 000361105 1,179,588 -620 -0.05 32,769 14.97 0.0099
2014-11-13 2014-09-30 13F AAR COM 000361105 1,180,208 34,440 3.01 28,502 -9.74 0.0090
2014-08-14 2014-06-30 13F AAR COM 000361105 1,145,768 -13,228 -1.14 31,577 4.99 0.0098
2014-05-14 2014-03-31 13F AAR COM 000361105 1,158,996 -48,237 -4.00 30,076 -11.06 0.0095
2014-02-21 2013-12-31 13F/A-1 AAR COM 000361105 1,207,233 40,501 3.47 33,815 6.05 0.0108
2014-02-12 2013-12-31 13F AAR COM 000361105 1,207,233 33,815
2013-11-13 2013-09-30 13F AAR COM 000361105 1,166,732 33,591 2.96 31,887 28.02 0.0112
2013-08-09 2013-06-30 13F AAR COM 000361105 1,133,141 1,133,141 24,907 0.0090
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.