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 ($2.1m this quarter). Holder counts are more reliable. Shares outstanding: 35.8m as of 2025-06-30, 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 ≈ $68.92. Options: 5 managers hold calls ($1.7m notional), 3 hold puts ($1.4m).
Trends to Q2 2025
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 |
| Q1 2025 | 251 |
| Q2 2025 | 262 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 113 | 98 |
| Q4 2023 | 99 | 114 |
| Q1 2024 | 113 | 125 |
| Q2 2024 | 108 | 128 |
| Q3 2024 | 125 | 108 |
| Q4 2024 | 115 | 101 |
| Q1 2025 | 115 | 108 |
| Q2 2025 | 116 | 139 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $12.0m | $22.8m | 1.90 |
| Q4 2024 | $3.3m | $5.5m | 1.65 |
| Q1 2025 | $2.4m | $5.3m | 2.18 |
| Q2 2025 | $1.7m | $1.4m | 0.83 |
Biggest buyers
| WELLINGTON MANAGEMENT GROUP LLP | New | +608.6k |
| ROYAL BANK OF CANADA | Added | +544.6k |
| STATE STREET CORP | Added | +188.4k |
| FRED ALGER MANAGEMENT, LLC | Added | +131.4k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | New | +82.9k |
| MARSICO CAPITAL MANAGEMENT LLC | New | +69.8k |
| MILLENNIUM MANAGEMENT LLC | Added | +69.2k |
| New Age Alpha Advisors, LLC | New | +64.6k |
| PDT Partners, LLC | Added | +58.4k |
| Invesco Ltd. | Added | +48.4k |
Biggest sellers
| Ophir Asset Management Pty Ltd | Reduced | -321.2k |
| BlackRock, Inc. | Reduced | -256.4k |
| EMERALD ADVISERS, LLC | Reduced | -173.8k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -128.4k |
| UBS Group AG | Reduced | -122.8k |
| Allspring Global Investments Holdings, LLC | Reduced | -112.6k |
| First Eagle Investment Management, LLC | Reduced | -86.8k |
| EMERALD MUTUAL FUND ADVISERS TRUST | Reduced | -86.8k |
| JANUS HENDERSON GROUP PLC | Reduced | -84.9k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -83.7k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $839.2k12.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $460.9k6.7k shares |
| JANE STREET GROUP, LLC | Unchanged | $350.8k5.1k shares |
| GROUP ONE TRADING LLC | Unchanged | $6.9k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $887.4k12.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $495.3k7.2k 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 Q2 2025
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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q1 2025 | 0 | — | 5 | $13.0m | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 5.6m $383.2m | Reduced -256.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.8m $263.1m | Added +24.6k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 2.2m $150.5m | Reduced -128.4k |
| STATE STREET CORP 0.00% of their portfolio | 1.9m $131.9m | Added +188.4k |
| WESTWOOD HOLDINGS GROUP INC 0.77% of their portfolio | 1.6m $107.0m | Reduced -33.9k |
| EARNEST PARTNERS LLC 0.46% of their portfolio | 1.5m $102.9m | Reduced -4.7k |
| Invesco Ltd. 0.01% of their portfolio | 1.2m $83.2m | Added +48.4k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 1.1m $73.1m | Added +544.6k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 842.9k $58.0m | Added +4.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 838.5k $57.7m | Added +11.2k |
| LOOMIS SAYLES & CO L P 0.07% of their portfolio | 836.6k $57.6m | Reduced -6.6k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 761.9k $52.4m | Reduced -83.7k |
| FRED ALGER MANAGEMENT, LLC 0.20% of their portfolio | 665.2k $45.8m | Added +131.4k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 608.6k $41.9m | New |
| Ophir Asset Management Pty Ltd 6.65% of their portfolio | 551.1k $41.8m | Reduced -321.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 522.4k $35.9m | Reduced -9.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 473.8k $32.6m | Reduced -10.1k |
| MORGAN STANLEY 0.00% of their portfolio | 406.7k $28.0m | Added +21.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 382.2k $26.3m | Reduced -5.2k |
| MACQUARIE GROUP LTD 0.03% of their portfolio | 353.6k $24.3m | Reduced -37.1k |
| EMERALD ADVISERS, LLC 0.85% of their portfolio | 337.0k $23.2m | Reduced -173.8k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 293.9k $20.2m | Reduced -84.9k |
| GAMCO INVESTORS, INC. ET AL 0.19% of their portfolio | 279.1k $19.2m | Added +700 |
| SEGALL BRYANT & HAMILL, LLC 0.27% of their portfolio | 277.7k $19.1m | Reduced -1.3k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 270.9k $18.6m | Reduced -1.7k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 265.4k $18.3m | Added +31.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 254.2k $17.5m | Added +1.7k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.71% of their portfolio | 236.5k $16.3m | Added +16.5k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 207.0k $14.2m | Reduced -1.3k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 204.1k $14.0m | Added +69.2k |
| ROYCE & ASSOCIATES LP 0.14% of their portfolio | 202.6k $13.9m | Reduced -29.2k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.81% of their portfolio | 194.2k $13.4m | Reduced -86.8k |
| FMR LLC 0.00% of their portfolio | 189.0k $13.0m | Added +5.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 185.8k $12.8m | Reduced -18.0k |
| STANSBERRY ASSET MANAGEMENT, LLC 1.28% of their portfolio | 169.8k $11.7m | Reduced -2.1k |
| MAIRS & POWER INC 0.11% of their portfolio | 156.1k $10.7m | Reduced -24.0k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.31% of their portfolio | 148.9k $10.2m | Added +2.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 138.6k $9.5m | Added +41.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 133.7k $9.2m | Reduced -24.7k |
| Chicago Capital, LLC 0.22% of their portfolio | 128.0k $8.8m | Unchanged |
| Phocas Financial Corp. 1.26% of their portfolio | 127.4k $8.8m | Added +19 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 126.3k $8.7m | Added +1.7k |
| ALGERT GLOBAL LLC 0.18% of their portfolio | 121.7k $8.4m | Reduced -1.4k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 121.0k $8.3m | Added +9.1k |
| Legal & General Group Plc 0.00% of their portfolio | 120.6k $8.3m | Added +13.0k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 112.6k $7.7m | Added +542 |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 104.3k $7.2m | Reduced -45.1k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 96.8k $6.7m | Reduced -18.5k |
| Canal Insurance CO 1.46% of their portfolio | 95.0k $6.5m | Added +23.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 89.9k $6.2m | Reduced -3.5k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 86.8k $6.0m | Reduced -65.4k |
| BARCLAYS PLC 0.00% of their portfolio | 83.9k $5.8m | Added +19.2k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.86% of their portfolio | 82.9k $5.7m | New |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 78.9k $5.5m | Reduced -112.6k |
| GABELLI FUNDS LLC 0.04% of their portfolio | 78.2k $5.4m | Added +28.6k |
| Nuveen, LLC 0.00% of their portfolio | 75.3k $5.2m | Reduced -35.9k |
| MARSICO CAPITAL MANAGEMENT LLC 0.13% of their portfolio | 69.8k $4.8m | New |
| Swiss National Bank 0.00% of their portfolio | 69.0k $4.7m | Reduced -600 |
| Stanley-Laman Group, Ltd. 0.70% of their portfolio | 68.8k $4.7m | Reduced -6.3k |
| PDT Partners, LLC 0.26% of their portfolio | 66.1k $4.5m | Added +58.4k |
| New Age Alpha Advisors, LLC 0.20% of their portfolio | 64.6k $4.4m | New |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 61.6k $4.2m | Reduced -42.8k |
| UBS Group AG 0.00% of their portfolio | 60.3k $4.2m | Reduced -122.8k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 57.8k $4.0m | Added +15.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 56.8k $3.9m | Reduced -33.7k |
| CITIGROUP INC 0.00% of their portfolio | 55.0k $3.8m | Reduced -19.0k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 53.0k $3.6m | Added +6.9k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 52.9k $3.6m | Reduced -86.8k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 48.8k $3.4m | Reduced -200 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 47.1k $3.2m | Added +1.6k |
| WISCONSIN CAPITAL MANAGEMENT LLC 1.66% of their portfolio | 43.6k $3.0m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 42.2k $2.9m | Added +10.5k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 40.3k $2.8m | Reduced -2.2k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 39.6k $2.7m | Added +2.8k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 38.3k $2.6m | Reduced -17.1k |
| GREAT LAKES ADVISORS, LLC 0.02% of their portfolio | 38.1k $2.6m | Reduced -801 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 36.3k $2.5m | Reduced -6.2k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.03% of their portfolio | 34.2k $2.4m | Reduced -2.0k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 33.2k $2.3m | Added +341 |
| Quantbot Technologies LP 0.06% of their portfolio | 31.7k $2.2m | New |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 30.6k $2.1m | Reduced -919 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 30.1k $2.1m | Added +1.1k |
| NORGES BANK 0.00% of their portfolio | 30.0k $2.1m | Reduced -25.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 28.6k $2.0m | Added +3.3k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 27.4k $1.9m | New |
| NATIXIS ADVISORS, LLC 0.00% of their portfolio | 27.2k $1.9m | Added +3.6k |
| INTECH INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 26.9k $1.8m | Reduced -25.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 26.9k $1.8m | Added +20.4k |
| Campbell & CO Investment Adviser LLC 0.11% of their portfolio | 25.1k $1.7m | New |
| Hennion & Walsh Asset Management, Inc. 0.06% of their portfolio | 22.2k $1.5m | Added +6.8k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 22.2k $1.5m | Reduced -3.8k |
| State of Alaska, Department of Revenue 0.02% of their portfolio | 21.1k $1.4m | Added +1.5k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 20.0k $1.4m | Added +60 |
| Cubist Systematic Strategies, LLC 0.01% of their portfolio | 19.9k $1.4m | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 19.6k $1.3m | Reduced -29.9k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 19.6k $1.3m | Reduced -1.2k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 18.7k $1.3m | Reduced -791 |
| WoodTrust Financial Corp 0.24% of their portfolio | 18.5k $1.9m | Added +14.8k |
| MARTINGALE ASSET MANAGEMENT L P 0.03% of their portfolio | 17.6k $1.2m | Reduced -1.0k |
| Graham Capital Management, L.P. 0.04% of their portfolio | 17.4k $1.2m | New |