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 ($4.3m this quarter). Holder counts are more reliable. Shares outstanding: 39.6m as of 2025-11-30, 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 ≈ $82.81. Options: 5 managers hold calls ($3.9m notional), 3 hold puts ($1.4m).
Trends to Q4 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 |
| Q3 2025 | 299 |
| Q4 2025 | 321 |
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 2024 | 113 | 125 |
| Q2 2024 | 108 | 128 |
| Q3 2024 | 125 | 108 |
| Q4 2024 | 115 | 101 |
| Q1 2025 | 115 | 108 |
| Q2 2025 | 116 | 139 |
| Q3 2025 | 161 | 127 |
| Q4 2025 | 184 | 118 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $2.4m | $5.3m | 2.18 |
| Q2 2025 | $1.7m | $1.4m | 0.83 |
| Q3 2025 | $31.5m | $13.2m | 0.42 |
| Q4 2025 | $3.9m | $1.4m | 0.37 |
Biggest buyers
| FULLER & THALER ASSET MANAGEMENT, INC. | Added | +795.5k |
| BlackRock, Inc. | Added | +587.1k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | Added | +445.0k |
| STATE STREET CORP | Added | +339.6k |
| VANGUARD GROUP INC | Added | +281.9k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +258.6k |
| Alyeska Investment Group, L.P. | New | +200.0k |
| Zimmer Partners, LP | New | +170.0k |
| CITADEL ADVISORS LLC | Added | +160.9k |
| Munro Partners | New | +108.3k |
Biggest sellers
| WESTWOOD HOLDINGS GROUP INC | Reduced | -1.2m |
| MACQUARIE GROUP LTD | Sold out | -362.8k |
| FRANKLIN RESOURCES INC | Reduced | -326.3k |
| UBS Group AG | Reduced | -277.3k |
| JPMORGAN CHASE & CO | Reduced | -131.3k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | Sold out | -119.0k |
| Ophir Asset Management Pty Ltd | Reduced | -111.9k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -85.0k |
| EARNEST PARTNERS LLC | Reduced | -79.9k |
| MARSHALL WACE, LLP | Reduced | -78.6k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.8m21.8k shares |
| CITADEL ADVISORS LLC | Reduced | $1.2m14.4k shares |
| JANE STREET GROUP, LLC | Reduced | $596.1k7.2k shares |
| Point72 Asset Management, L.P. | New | $264.9k3.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $8.3k100 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $861.0k10.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $422.2k5.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $157.3k1.9k 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 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q3 2025 | 0 | — | 5 | $8.1m | — |
| Q4 2025 | 0 | — | 1 | $3.2m | $3.2m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-11-05 | Holmes John McClain III Chairman, President & CEO, director | Sold plan | $3.2m38.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 6.1m $506.0m | Added +587.1k |
| VANGUARD GROUP INC 0.00% of their portfolio | 4.1m $336.2m | Added +281.9k |
| STATE STREET CORP 0.01% of their portfolio | 2.3m $192.1m | Added +339.6k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 2.0m $164.0m | Reduced -25.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio | 1.7m $144.5m | Added +258.6k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.19% of their portfolio | 1.3m $111.4m | Added +795.5k |
| EARNEST PARTNERS LLC 0.48% of their portfolio | 1.3m $111.2m | Reduced -79.9k |
| Invesco Ltd. 0.01% of their portfolio | 1.1m $93.0m | Added +80.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 920.7k $76.2m | Added +78.8k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 831.8k $68.9m | Added +50.5k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 827.9k $68.5m | Reduced -326.3k |
| LOOMIS SAYLES & CO L P 0.08% of their portfolio | 824.3k $68.2m | Reduced -20.7k |
| Broad Bay Capital Management, LP 6.28% of their portfolio | 664.5k $55.0m | Added +82.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 644.1k $53.3m | Added +3.4k |
| FRED ALGER MANAGEMENT, LLC 0.20% of their portfolio | 609.4k $50.5m | Reduced -85.0k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.16% of their portfolio | 594.7k $49.2m | Added +445.0k |
| Ophir Asset Management Pty Ltd 5.10% of their portfolio | 549.5k $45.5m | Reduced -111.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 531.7k $44.0m | Added +15.4k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 497.1k $41.2m | Reduced -13.2k |
| MORGAN STANLEY 0.00% of their portfolio | 474.3k $39.3m | Added +65.8k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.41% of their portfolio | 470.6k $39.0m | Added +91.2k |
| EMERALD ADVISERS, LLC 1.07% of their portfolio | 419.5k $34.7m | Added +54.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 382.5k $31.7m | Added +6.7k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.05% of their portfolio | 366.4k $30.3m | First filing |
| Bank of New York Mellon Corp 0.00% of their portfolio | 279.6k $23.1m | Added +14.0k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.83% of their portfolio | 272.7k $22.6m | Added +36.2k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.02% of their portfolio | 252.8k $20.9m | Added +41.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 251.2k $20.8m | Added +8.4k |
| GAMCO INVESTORS, INC. ET AL 0.19% of their portfolio | 241.2k $20.0m | Reduced -6.2k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 236.8k $19.6m | Added +22.9k |
| SEGALL BRYANT & HAMILL, LLC 0.25% of their portfolio | 222.8k $18.4m | Reduced -9.1k |
| UBS Group AG 0.00% of their portfolio | 211.0k $17.5m | Reduced -277.3k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 207.0k $17.1m | Added +3 |
| Alyeska Investment Group, L.P. 0.05% of their portfolio | 200.0k $16.6m | New |
| STANSBERRY ASSET MANAGEMENT, LLC 1.62% of their portfolio | 193.5k $16.0m | Added +26.7k |
| FMR LLC 0.00% of their portfolio | 187.4k $15.5m | Added +63.1k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 187.4k $15.5m | Reduced -21.1k |
| MARSICO CAPITAL MANAGEMENT LLC 0.42% of their portfolio | 180.5k $14.9m | Reduced -57.4k |
| ROYCE & ASSOCIATES LP 0.15% of their portfolio | 177.2k $14.7m | Reduced -11.2k |
| Zimmer Partners, LP 0.37% of their portfolio | 170.0k $14.1m | New |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 163.3k $13.5m | Added +160.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 163.0k $13.5m | Reduced -7.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 158.7k $13.1m | Reduced -36.3k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 135.0k $11.2m | Reduced -3.1k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.34% of their portfolio | 132.3k $11.0m | Reduced -1.6k |
| Phocas Financial Corp. 1.40% of their portfolio | 129.7k $10.7m | Reduced -323 |
| Legal & General Group Plc 0.00% of their portfolio | 122.5k $10.1m | Added +6.6k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 120.4k $10.0m | Added +58.1k |
| Nuveen, LLC 0.00% of their portfolio | 119.8k $9.9m | Added +45.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 113.6k $9.4m | Reduced -8.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 113.3k $9.4m | Added +18.8k |
| MAIRS & POWER INC 0.09% of their portfolio | 112.2k $9.3m | Reduced -15.5k |
| INTECH INVESTMENT MANAGEMENT LLC 0.08% of their portfolio | 111.4k $9.2m | Reduced -44.6k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 109.3k $9.1m | Reduced -2.8k |
| Munro Partners 0.25% of their portfolio | 108.3k $9.0m | New |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 108.2k $9.1m | Added +31.6k |
| Burkehill Global Management, LP 0.55% of their portfolio | 100.0k $8.3m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 95.5k $7.9m | Added +292 |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 91.0k $7.5m | Added +64.3k |
| CASTLEARK MANAGEMENT LLC 0.21% of their portfolio | 86.9k $7.2m | Added +2.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 80.2k $6.6m | Added +77 |
| Canal Insurance CO 1.61% of their portfolio | 80.0k $6.6m | Reduced -15.0k |
| Swiss National Bank 0.00% of their portfolio | 78.1k $6.5m | Added +8.1k |
| GABELLI FUNDS LLC 0.04% of their portfolio | 76.6k $6.3m | Added +552 |
| BARCLAYS PLC 0.00% of their portfolio | 76.4k $6.3m | Added +10.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 75.4k $6.2m | Added +57.9k |
| WISCONSIN CAPITAL MANAGEMENT LLC 3.03% of their portfolio | 72.4k $6.0m | Added +5.6k |
| Hudson Bay Capital Management LP 0.03% of their portfolio | 71.7k $5.9m | New |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 70.3k $5.8m | Added +6.9k |
| PDT Partners, LLC 0.35% of their portfolio | 66.0k $5.5m | Unchanged |
| De Lisle Partners LLP 0.67% of their portfolio | 63.2k $5.2m | New |
| Roubaix Capital, LLC 2.22% of their portfolio | 63.0k $5.2m | New |
| Stanley-Laman Group, Ltd. 0.66% of their portfolio | 62.7k $5.2m | Added +4.2k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 61.6k $5.1m | Added +11.3k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 59.6k $4.9m | Reduced -1.5k |
| Jump Financial, LLC 0.06% of their portfolio | 57.9k $4.8m | New |
| G2 Investment Partners Management LLC 1.10% of their portfolio | 56.0k $4.6m | Added +22.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 53.7k $4.4m | Added +41.3k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 52.0k $4.3m | Added +1.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 51.7k $4.3m | Reduced -131.3k |
| Resolute Capital Asset Partners LLC 2.00% of their portfolio | 50.0k $4.1m | New |
| Focus Partners Wealth 0.00% of their portfolio | 49.3k $4.1m | Reduced -8.1k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 48.7k $4.0m | Reduced -47 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 44.2k $3.7m | Added +4.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 41.3k $3.4m | Added +1.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 40.9k $3.4m | Reduced -573 |
| Oliver Luxxe Assets LLC 0.51% of their portfolio | 40.4k $3.3m | Added +9.7k |
| Amundi 0.00% of their portfolio | 40.0k $3.3m | New |
| KINGDON CAPITAL MANAGEMENT, L.L.C. 0.51% of their portfolio | 40.0k $3.3m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 37.5k $3.1m | Added +2.8k |
| Hennion & Walsh Asset Management, Inc. 0.10% of their portfolio | 35.3k $2.9m | Added +3.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 35.2k $2.9m | Added +5.4k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.10% of their portfolio | 34.8k $2.9m | Added +30.5k |
| GREAT LAKES ADVISORS, LLC 0.02% of their portfolio | 34.6k $2.9m | Added +257 |
| DEAN INVESTMENT ASSOCIATES, LLC 0.41% of their portfolio | 34.6k $2.9m | Added +13.3k |
| Skyview Financial Group LLC 2.94% of their portfolio | 34.4k $2.8m | First filing |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 33.6k $2.8m | Added +2.0k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 32.0k $2.6m | Added +407 |
| COMERICA BANK 0.01% of their portfolio | 31.8k $2.6m | Added +4.9k |
| NATIXIS ADVISORS, LLC 0.00% of their portfolio | 31.4k $2.6m | Added +2.6k |