AAR CORP AIR
COM · Common Stock · CUSIP 000361105
Aviation Support Company
- SectorIndustrials
- IndustryAircraft & Parts
- HeadquartersWood Dale, IL
- Founded1951
- Websiteaarcorp.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.1m this quarter). Holder counts are more reliable. Shares outstanding: 35.9m as of 2024-11-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $61.25. Options: 6 managers hold calls ($3.3m notional), 7 hold puts ($5.5m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 199 |
| Q4 2022 | 206 |
| Q1 2023 | 208 |
| Q2 2023 | 220 |
| Q3 2023 | 231 |
| Q4 2023 | 229 |
| Q1 2024 | 252 |
| Q2 2024 | 249 |
| Q3 2024 | 243 |
| Q4 2024 | 246 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 90 | 113 |
| Q2 2023 | 96 | 97 |
| Q3 2023 | 113 | 98 |
| Q4 2023 | 99 | 114 |
| Q1 2024 | 113 | 125 |
| Q2 2024 | 108 | 128 |
| Q3 2024 | 125 | 108 |
| Q4 2024 | 115 | 101 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $8.7m | $4.7m | 0.54 |
| Q2 2024 | $9.5m | $3.9m | 0.41 |
| Q3 2024 | $12.0m | $22.8m | 1.90 |
| Q4 2024 | $3.3m | $5.5m | 1.65 |
Biggest buyers
| Ophir Asset Management Pty Ltd | New | +580.0k |
| UBS Group AG | Added | +304.5k |
| BlackRock, Inc. | Added | +217.9k |
| STATE STREET CORP | Added | +144.6k |
| Invesco Ltd. | Added | +127.1k |
| WESTWOOD HOLDINGS GROUP INC | Added | +115.5k |
| STANSBERRY ASSET MANAGEMENT, LLC | Added | +102.7k |
| MACQUARIE GROUP LTD | Added | +94.4k |
| GOLDMAN SACHS GROUP INC | Added | +84.6k |
| TWO SIGMA INVESTMENTS, LP | Added | +83.6k |
Biggest sellers
| Allspring Global Investments Holdings, LLC | Reduced | -532.1k |
| Rubric Capital Management LP | Sold out | -471.7k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -220.7k |
| NORGES BANK | Reduced | -153.1k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -150.9k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -105.6k |
| JANE STREET GROUP, LLC | Sold out | -87.8k |
| EMERALD MUTUAL FUND ADVISERS TRUST | Reduced | -83.4k |
| ICON ADVISERS INC/CO | Sold out | -75.0k |
| FRANKLIN RESOURCES INC | Reduced | -68.4k |
Biggest calls
| SIMPLEX TRADING, LLC | Added | $1.8m28.9k shares |
| CITADEL ADVISORS LLC | Reduced | $962.1k15.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $349.3k5.7k shares |
| JANE STREET GROUP, LLC | New | $245.1k4.0k shares |
| PEAK6 LLC | First filing | $6.1k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.3m37.8k shares |
| CITADEL ADVISORS LLC | Reduced | $1.6m26.6k shares |
| TUDOR INVESTMENT CORP ET AL | New | $655.7k10.7k shares |
| PEAK6 LLC | First filing | $649.6k10.6k shares |
| JANE STREET GROUP, LLC | Unchanged | $220.6k3.6k shares |
| SIMPLEX TRADING, LLC | Unchanged | $12.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| STATE STREET CORP 13G · institution +1.2 pts · filed 2026-05-12 | 6.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 5.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.0% |
Fell to 5% or below in the last year: DIMENSIONAL FUND ADVISORS LP (4.9%, 2026-04-09), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 7 | $11.3m | — |
| Q2 2023 | 0 | — | 1 | $1.1m | — |
| Q3 2023 | 0 | — | 3 | $8.2m | — |
| Q4 2023 | 0 | — | 5 | $4.0m | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 4 | $7.6m | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
None reported in Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 6.0m $367.3m | Added +217.9k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.8m $235.4m | Added +58.7k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 2.5m $155.3m | Reduced -150.9k |
| STATE STREET CORP 0.00% of their portfolio | 1.9m $117.0m | Added +144.6k |
| EARNEST PARTNERS LLC 0.42% of their portfolio | 1.5m $93.6m | Reduced -11.6k |
| WESTWOOD HOLDINGS GROUP INC 0.68% of their portfolio | 1.4m $88.3m | Added +115.5k |
| Invesco Ltd. 0.01% of their portfolio | 1.1m $65.6m | Added +127.1k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 901.3k $55.2m | Reduced -68.4k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 893.8k $54.8m | Added +20.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 799.8k $49.0m | Added +2.8k |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 791.3k $48.5m | Added +1.0k |
| Ophir Asset Management Pty Ltd 5.29% of their portfolio | 580.0k $35.5m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 538.1k $33.0m | Added +19.9k |
| EMERALD ADVISERS, LLC 1.16% of their portfolio | 490.2k $30.0m | Reduced -1.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 489.4k $30.0m | Reduced -10.8k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 480.3k $29.4m | Added +15.3k |
| FRED ALGER MANAGEMENT, LLC 0.12% of their portfolio | 402.7k $24.7m | Reduced -105.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 398.2k $24.4m | Reduced -6.8k |
| MACQUARIE GROUP LTD 0.03% of their portfolio | 393.6k $24.1m | Added +94.4k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 389.3k $23.9m | Added +39.5k |
| MORGAN STANLEY 0.00% of their portfolio | 374.2k $22.9m | Reduced -54.8k |
| UBS Group AG 0.00% of their portfolio | 327.5k $20.1m | Added +304.5k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.08% of their portfolio | 290.6k $17.8m | Reduced -83.4k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 288.3k $17.7m | Added +84.6k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 284.5k $17.4m | Reduced -3.3k |
| GAMCO INVESTORS, INC. ET AL 0.18% of their portfolio | 275.0k $16.8m | Reduced -2.2k |
| SEGALL BRYANT & HAMILL, LLC 0.23% of their portfolio | 274.2k $16.8m | Reduced -10.2k |
| ROYCE & ASSOCIATES LP 0.15% of their portfolio | 263.2k $16.1m | Added +19.6k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 254.7k $15.6m | Reduced -40.9k |
| Thrivent Financial for Lutherans 0.03% of their portfolio | 247.6k $15.2m | Reduced -50.8k |
| First Eagle Investment Management, LLC 0.03% of their portfolio | 213.9k $13.1m | Reduced -6.3k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 210.3k $12.9m | Unchanged |
| Alyeska Investment Group, L.P. 0.05% of their portfolio | 201.2k $12.3m | Added +41.4k |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 200.8k $12.4m | Reduced -532.1k |
| MAIRS & POWER INC 0.11% of their portfolio | 187.9k $11.5m | Reduced -75 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 171.2k $10.5m | Reduced -18.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 156.0k $9.6m | Reduced -10.2k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.26% of their portfolio | 141.5k $8.7m | Added +38.5k |
| Phocas Financial Corp. 1.10% of their portfolio | 134.7k $8.3m | Reduced -1.1k |
| STANSBERRY ASSET MANAGEMENT, LLC 1.05% of their portfolio | 132.0k $8.1m | Added +102.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 128.7k $7.9m | Added +47.2k |
| Chicago Capital, LLC 0.21% of their portfolio | 128.0k $7.8m | Unchanged |
| FMR LLC 0.00% of their portfolio | 126.8k $7.8m | Added +17.2k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 124.4k $7.6m | Reduced -924 |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 116.9k $7.2m | Added +83.6k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 115.9k $7.1m | Added +455 |
| MARSHALL WACE, LLP 0.01% of their portfolio | 113.5k $7.0m | Added +65.6k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 112.4k $6.9m | Added +8.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 111.8k $6.8m | First filing |
| Legal & General Group Plc 0.00% of their portfolio | 111.0k $6.8m | Added +2.4k |
| NORGES BANK 0.00% of their portfolio | 103.2k $6.3m | Reduced -153.1k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 99.4k $6.1m | Reduced -220.7k |
| BARCLAYS PLC 0.00% of their portfolio | 98.4k $6.0m | Added +32.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 93.3k $5.7m | Reduced -11.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 93.1k $5.7m | Added +16.6k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 87.9k $5.4m | Added +13.2k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 83.5k $5.1m | Added +20.0k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 79.4k $4.9m | Added +7.9k |
| Stanley-Laman Group, Ltd. 0.67% of their portfolio | 77.4k $4.7m | Added +1.6k |
| CITIGROUP INC 0.00% of their portfolio | 75.6k $4.6m | Added +3.7k |
| Canal Insurance CO 1.15% of their portfolio | 72.0k $4.4m | Added +40.0k |
| Swiss National Bank 0.00% of their portfolio | 70.6k $4.3m | Added +1.4k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 66.0k $4.0m | Added +51.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 62.8k $3.8m | Added +23.2k |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 61.4k $3.8m | Added +14.0k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 57.8k $3.5m | Added +4.3k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 55.7k $3.4m | Reduced -3.2k |
| Boston Partners 0.00% of their portfolio | 53.9k $2.0m | Added +8.6k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 53.1k $3.3m | Added +10.3k |
| GREAT LAKES ADVISORS, LLC 0.03% of their portfolio | 50.7k $3.1m | New |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 50.1k $3.1m | Added +27.3k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 46.0k $2.8m | Added +10.3k |
| GABELLI FUNDS LLC 0.02% of their portfolio | 44.9k $2.8m | Reduced -800 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 40.5k $2.5m | Added +4.0k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 35.7k $2.2m | Added +15.0k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.04% of their portfolio | 35.7k $2.2m | First filing |
| Alberta Investment Management Corp 0.01% of their portfolio | 34.6k $2.1m | Reduced -23.5k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 34.5k $2.1m | Reduced -1.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 34.1k $2.1m | Added +13.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 33.5k $2.1m | Added +66 |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.02% of their portfolio | 32.7k $2.0m | Reduced -139 |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 31.2k $1.9m | Added +429 |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 29.8k $1.8m | Reduced -4.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 29.0k $1.8m | Unchanged |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 26.2k $1.6m | Added +9.8k |
| SG Americas Securities, LLC 0.01% of their portfolio | 25.1k $1.5m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 24.1k $1.5m | Added +2.7k |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 23.6k $1.4m | Added +8.6k |
| Keeley-Teton Advisors, LLC 0.16% of their portfolio | 22.7k $1.4m | Reduced -3.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 22.1k $1.4m | Reduced -311 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 21.9k $1.3m | Reduced -8.6k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 21.0k $1.3m | Added +1.2k |
| MARTINGALE ASSET MANAGEMENT L P 0.03% of their portfolio | 20.8k $1.3m | Reduced -3.5k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 20.3k $1.2m | Unchanged |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 20.0k $1.2m | Reduced -118 |
| Allianz Asset Management GmbH 0.00% of their portfolio | 19.9k $1.2m | Reduced -5.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 19.9k $1.2m | Added +999 |
| Illinois Municipal Retirement Fund 0.02% of their portfolio | 19.5k $1.2m | Added +2.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 18.8k $1.2m | Reduced -498 |
| Corebridge Financial, Inc. 0.01% of their portfolio | 18.6k $1.1m | Reduced -1.2k |