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 ($5.1m this quarter). Holder counts are more reliable. Shares outstanding: 39.8m as of 2026-02-28, 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 ≈ $109.42. Options: 8 managers hold calls ($10.5m notional), 7 hold puts ($9.4m).
Trends to Q1 2026
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 |
| Q1 2026 | 380 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| 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 |
| Q1 2026 | 226 | 137 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $1.7m | $1.4m | 0.83 |
| Q3 2025 | $31.5m | $13.2m | 0.42 |
| Q4 2025 | $3.9m | $1.4m | 0.37 |
| Q1 2026 | $10.5m | $9.4m | 0.89 |
Biggest buyers
| Capital Research Global Investors | New | +1.2m |
| WESTWOOD HOLDINGS GROUP INC | Added | +937.2k |
| Invesco Ltd. | Added | +270.9k |
| STATE STREET CORP | Added | +266.7k |
| UBS Group AG | Added | +242.9k |
| Nuveen, LLC | Added | +208.6k |
| JANE STREET GROUP, LLC | New | +198.4k |
| Broad Bay Capital Management, LP | Added | +153.9k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | New | +131.7k |
| Bayberry Capital Partners LP | New | +110.0k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -1.2m |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | -627.7k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -286.3k |
| FRANKLIN RESOURCES INC | Reduced | -206.6k |
| Alyeska Investment Group, L.P. | Sold out | -200.0k |
| LOOMIS SAYLES & CO L P | Reduced | -185.4k |
| Zimmer Partners, LP | Sold out | -170.0k |
| CITADEL ADVISORS LLC | Reduced | -120.1k |
| Burkehill Global Management, LP | Sold out | -100.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -88.6k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $2.7m24.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.5m22.4k shares |
| CITADEL ADVISORS LLC | Added | $2.2m19.8k shares |
| D. E. Shaw & Co., Inc. | New | $1.7m15.2k shares |
| IMC-Chicago, LLC | New | $1.1m9.9k shares |
| Point72 Asset Management, L.P. | Reduced | $328.4k3.0k shares |
| GROUP ONE TRADING LLC | New | $109.5k1.0k shares |
| SIMPLEX TRADING, LLC | Added | $43.8k400 shares |
Biggest puts
| IMC-Chicago, LLC | New | $2.2m19.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.0m17.9k shares |
| JANE STREET GROUP, LLC | New | $1.9m17.8k shares |
| CITADEL ADVISORS LLC | Added | $1.4m13.0k shares |
| D. E. Shaw & Co., Inc. | New | $1.1m9.9k shares |
| SIMPLEX TRADING, LLC | Added | $602.0k5.5k shares |
| Point72 Asset Management, L.P. | New | $218.9k2.0k 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 Q1 2026
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 |
|---|---|---|---|---|---|
| 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 |
| Q1 2026 | 0 | — | 6 | $23.5m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-27 | Holmes John McClain III Chairman, President & CEO, director | Sold | $2.8m26.2k shares |
| 2026-03-26 | Holmes John McClain III Chairman, President & CEO, director | Sold | $6.7m60.0k shares |
| 2026-03-26 | Garascia Jessica A. Senior VP, GC, CAO & Secretary | Sold | $705.1k6.3k shares |
| 2026-03-26 | Nolen Billy Director | Sold | $173.4k1.6k shares |
| 2026-02-04 | Flanagan Sarah Louise Interim CFO VP Fin Ops | Sold | $1.2m10.8k shares |
| 2026-02-03 | Holmes John McClain III Chairman, President & CEO, director | Sold | $1.1m10.0k shares |
| 2026-01-22 | Pachapa Eric VP-CAO & Controller | Sold | $527.9k5.0k shares |
| 2026-01-14 | Holmes John McClain III Chairman, President & CEO, director | Sold | $988.8k9.9k shares |
| 2026-01-13 | Holmes John McClain III Chairman, President & CEO, director | Sold | $1.7m16.8k shares |
| 2026-01-12 | Holmes John McClain III Chairman, President & CEO, director | Sold | $2.9m30.0k shares |
| 2026-01-09 | Jessup Christopher A. Senior Vice President-CCO | Sold | $2.3m23.6k shares |
| 2026-01-08 | Garascia Jessica A. Senior VP, GC, CAO & Secretary | Sold | $456.0k4.8k shares |
| 2026-01-02 | Holmes John McClain III Chairman, President & CEO, director | Sold | $1.9m23.1k 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, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 6.2m $675.8m | Added +62.6k |
| STATE STREET CORP 0.01% of their portfolio | 2.6m $283.2m | Added +266.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 2.1m $233.1m | First filing |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 1.9m $212.8m | Reduced -36.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.7m $185.7m | First filing |
| Invesco Ltd. 0.01% of their portfolio | 1.4m $152.5m | Added +270.9k |
| EARNEST PARTNERS LLC 0.59% of their portfolio | 1.3m $142.9m | Reduced -38.5k |
| Capital Research Global Investors 0.02% of their portfolio | 1.2m $133.9m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 974.3k $106.7m | Added +53.6k |
| WESTWOOD HOLDINGS GROUP INC 0.76% of their portfolio | 948.7k $103.8m | Added +937.2k |
| AMERICAN CENTURY COMPANIES INC 0.05% of their portfolio | 828.0k $90.6m | Reduced -3.7k |
| Broad Bay Capital Management, LP 9.21% of their portfolio | 818.3k $89.6m | Added +153.9k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.26% of their portfolio | 718.1k $78.6m | Reduced -627.7k |
| PRINCIPAL FINANCIAL GROUP INC 0.04% of their portfolio | 675.7k $74.0m | Added +31.6k |
| LOOMIS SAYLES & CO L P 0.09% of their portfolio | 638.9k $69.9m | Reduced -185.4k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.22% of their portfolio | 622.1k $68.1m | Added +27.4k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 621.3k $68.0m | Reduced -206.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 545.8k $59.7m | Added +14.0k |
| Ophir Asset Management Pty Ltd 6.88% of their portfolio | 540.0k $59.1m | Reduced -9.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 528.9k $57.9m | Reduced -1.2m |
| MORGAN STANLEY 0.00% of their portfolio | 522.7k $57.2m | Added +48.4k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 460.3k $50.4m | Reduced -36.7k |
| UBS Group AG 0.01% of their portfolio | 453.8k $49.7m | Added +242.9k |
| EMERALD ADVISERS, LLC 1.54% of their portfolio | 445.7k $48.8m | Added +26.2k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.48% of their portfolio | 427.2k $46.8m | Reduced -43.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 401.0k $43.9m | Added +18.5k |
| Nuveen, LLC 0.01% of their portfolio | 328.3k $35.9m | Added +208.6k |
| FRED ALGER MANAGEMENT, LLC 0.16% of their portfolio | 323.1k $35.4m | Reduced -286.3k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.05% of their portfolio | 292.2k $32.0m | Reduced -74.2k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.49% of their portfolio | 280.3k $30.7m | Added +27.5k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 271.2k $29.7m | Reduced -8.4k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 255.8k $28.0m | First filing |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 245.8k $26.9m | Reduced -5.4k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.79% of their portfolio | 245.1k $26.8m | Reduced -27.6k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 230.6k $25.2m | Added +23.6k |
| GAMCO INVESTORS, INC. ET AL 0.24% of their portfolio | 227.2k $24.9m | Reduced -14.1k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 221.2k $24.2m | Reduced -15.6k |
| FMR LLC 0.00% of their portfolio | 211.5k $23.1m | Added +24.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 201.6k $22.1m | Added +42.9k |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 198.4k $21.7m | New |
| MARSICO CAPITAL MANAGEMENT LLC 0.58% of their portfolio | 180.5k $19.8m | Unchanged |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 176.3k $19.3m | Reduced -11.0k |
| STANSBERRY ASSET MANAGEMENT, LLC 1.92% of their portfolio | 171.0k $18.7m | Reduced -22.5k |
| ROYCE & ASSOCIATES LP 0.18% of their portfolio | 170.9k $18.7m | Reduced -6.3k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 161.9k $17.7m | Reduced -1.1k |
| SEGALL BRYANT & HAMILL, LLC 0.24% of their portfolio | 152.4k $16.7m | Reduced -70.4k |
| Public Sector Pension Investment Board 0.05% of their portfolio | 139.6k $15.3m | Added +4.6k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.13% of their portfolio | 131.7k $14.4m | New |
| Munro Partners 0.44% of their portfolio | 119.2k $13.1m | Added +10.9k |
| Legal & General Group Plc 0.00% of their portfolio | 116.7k $12.8m | Reduced -5.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 114.0k $12.5m | Added +405 |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 111.7k $12.2m | Added +2.4k |
| Bayberry Capital Partners LP 3.98% of their portfolio | 110.0k $12.0m | New |
| Phocas Financial Corp. 1.74% of their portfolio | 101.5k $11.1m | Reduced -28.2k |
| RENAISSANCE GROUP LLC 0.46% of their portfolio | 100.4k $11.0m | New |
| KINGDON CAPITAL MANAGEMENT, L.L.C. 1.83% of their portfolio | 100.0k $10.9m | Added +60.0k |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 99.8k $11.1m | Reduced -8.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 95.0k $9.8m | Added +43.3k |
| AXIOM INVESTORS LLC /DE 0.11% of their portfolio | 93.8k $10.3m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 91.6k $10.0m | Reduced -3.9k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 90.7k $9.9m | Added +15.3k |
| MAIRS & POWER INC 0.10% of their portfolio | 89.4k $9.8m | Reduced -22.8k |
| PALISADE CAPITAL MANAGEMENT, LP 0.32% of their portfolio | 88.6k $9.7m | New |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.36% of their portfolio | 88.0k $9.6m | Reduced -44.4k |
| LORD, ABBETT & CO. LLC 0.03% of their portfolio | 86.1k $9.4m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 85.1k $9.3m | Reduced -28.2k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 81.7k $8.9m | Added +11.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 81.5k $8.9m | Added +1.4k |
| Canal Insurance CO 1.88% of their portfolio | 80.0k $8.8m | Unchanged |
| De Lisle Partners LLP 1.02% of their portfolio | 78.2k $8.6m | Added +15.0k |
| Swiss National Bank 0.00% of their portfolio | 78.1k $8.5m | Unchanged |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 73.2k $8.0m | Reduced -17.7k |
| WISCONSIN CAPITAL MANAGEMENT LLC 4.23% of their portfolio | 70.4k $7.7m | Reduced -2.0k |
| GABELLI FUNDS LLC 0.05% of their portfolio | 67.5k $7.4m | Reduced -9.0k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 64.0k $7.0m | Added +2.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 61.1k $6.7m | Added +31.2k |
| CASTLEARK MANAGEMENT LLC 0.22% of their portfolio | 60.3k $6.6m | Reduced -26.6k |
| G2 Investment Partners Management LLC 1.60% of their portfolio | 59.5k $6.5m | Added +3.5k |
| PDT Partners, LLC 0.38% of their portfolio | 59.1k $6.5m | Reduced -6.9k |
| Hudson Bay Capital Management LP 0.04% of their portfolio | 58.6k $6.4m | Reduced -13.1k |
| Stanley-Laman Group, Ltd. 0.76% of their portfolio | 56.6k $6.2m | Reduced -6.0k |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 54.9k $6.0m | Added +24.6k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 47.5k $5.2m | Reduced -12.1k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.19% of their portfolio | 47.5k $5.2m | Added +12.6k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 47.3k $5.2m | Reduced -1.4k |
| Informed Momentum Co LLC 0.60% of their portfolio | 47.1k $5.2m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 47.0k $5.1m | Added +9.5k |
| CONGRESS ASSET MANAGEMENT CO 0.04% of their portfolio | 46.7k $5.1m | New |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.03% of their portfolio | 46.0k $5.0m | Not comparable |
| INTECH INVESTMENT MANAGEMENT LLC 0.05% of their portfolio | 45.8k $5.0m | Reduced -65.6k |
| Squarepoint Ops LLC 0.01% of their portfolio | 45.5k $5.0m | Added +41.6k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 45.2k $4.9m | Reduced -6.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 44.7k $3.7m | Added +500 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 43.9k $4.8m | Added +8.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 43.9k $4.8m | Reduced -9.8k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 43.1k $4.7m | Reduced -120.1k |
| Hennion & Walsh Asset Management, Inc. 0.16% of their portfolio | 42.6k $4.7m | Added +7.3k |
| MARTINGALE ASSET MANAGEMENT L P 0.11% of their portfolio | 41.3k $4.5m | Added +31.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 41.2k $4.5m | Reduced -125 |
| Oliver Luxxe Assets LLC 0.65% of their portfolio | 39.4k $4.3m | Reduced -1.1k |