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 ($37.1k this quarter). Holder counts are more reliable. Shares outstanding: 35.4m as of 2024-02-29, 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 ≈ $59.88. Options: 8 managers hold calls ($8.7m notional), 7 hold puts ($4.7m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 89 | 100 |
| Q1 2023 | 90 | 113 |
| Q2 2023 | 96 | 97 |
| Q3 2023 | 113 | 98 |
| Q4 2023 | 99 | 114 |
| Q1 2024 | 113 | 125 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $121.3k | $92.4k | 0.76 |
| Q3 2023 | $4.5m | $1.7m | 0.37 |
| Q4 2023 | $2.8m | $3.2m | 1.17 |
| Q1 2024 | $8.7m | $4.7m | 0.54 |
Biggest buyers
| STATE STREET CORP | Added | +529.3k |
| Boston Partners | New | +424.1k |
| Allspring Global Investments Holdings, LLC | Added | +351.5k |
| FRED ALGER MANAGEMENT, LLC | Added | +207.4k |
| MILLENNIUM MANAGEMENT LLC | Added | +192.4k |
| Invesco Ltd. | Added | +169.9k |
| Qube Research & Technologies Ltd | Added | +135.3k |
| Jade Capital Advisors, LLC | New | +130.0k |
| VICTORY CAPITAL MANAGEMENT INC | Added | +124.5k |
| PEREGRINE CAPITAL MANAGEMENT LLC | New | +101.4k |
Biggest sellers
| LORD, ABBETT & CO. LLC | Reduced | -976.4k |
| EARNEST PARTNERS LLC | Reduced | -352.7k |
| BlackRock Inc. | Reduced | -310.7k |
| Driehaus Capital Management LLC | Sold out | -257.9k |
| Rubric Capital Management LP | Reduced | -170.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -67.1k |
| WELLS FARGO & COMPANY/MN | Reduced | -56.5k |
| NORGES BANK | Reduced | -49.2k |
| MORGAN STANLEY | Reduced | -48.0k |
| PANAGORA ASSET MANAGEMENT INC | Reduced | -47.5k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $5.6m92.8k shares |
| IMC-Chicago, LLC | New | $1.3m22.1k shares |
| SIMPLEX TRADING, LLC | Added | $670.0k11.2k shares |
| JANE STREET GROUP, LLC | New | $395.1k6.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $389.2k6.5k shares |
| Cubist Systematic Strategies, LLC | New | $233.5k3.9k shares |
| PEAK6 Investments LLC | Added | $131.7k2.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Jade Capital Advisors, LLC | New | $1.8m30.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.0m17.5k shares |
| CITADEL ADVISORS LLC | Reduced | $790.3k13.2k shares |
| IMC-Chicago, LLC | New | $640.6k10.7k shares |
| SIMPLEX TRADING, LLC | Added | $305.0k5.1k shares |
| PEAK6 Investments LLC | Reduced | $95.8k1.6k 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2022 | 0 | — | 3 | $9.7m | — |
| Q3 2022 | 0 | — | 1 | $1.2m | — |
| Q4 2022 | 0 | — | 5 | $6.6m | — |
| 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 | — | — |
None reported in Q1 2024.
Holders, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 5.9m $354.9m | Reduced -310.7k |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.7m $224.2m | Reduced -16.2k |
| DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio | 2.8m $166.6m | Reduced -33.9k |
| STATE STREET CORP 0.01% of their portfolio | 2.4m $145.7m | Added +529.3k |
| EARNEST PARTNERS LLC 0.42% of their portfolio | 1.5m $92.2m | Reduced -352.7k |
| MORGAN STANLEY 0.00% of their portfolio | 1.3m $79.6m | Reduced -48.0k |
| Invesco Ltd. 0.01% of their portfolio | 991.3k $59.3m | Added +169.9k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 872.4k $52.2m | Reduced -38.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 741.3k $44.4m | Added +22.4k |
| Rubric Capital Management LP 1.28% of their portfolio | 725.0k $43.4m | Reduced -170.9k |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 682.1k $40.8m | Reduced -21.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 539.1k $32.3m | Added +7.4k |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 530.7k $31.8m | Added +64.3k |
| FRED ALGER MANAGEMENT, LLC 0.16% of their portfolio | 522.7k $31.3m | Added +207.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 505.4k $30.3m | Added +11.3k |
| SEGALL BRYANT & HAMILL, LLC 0.49% of their portfolio | 432.5k $25.9m | Reduced -1.8k |
| Boston Partners 0.03% of their portfolio | 424.1k $25.8m | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 403.8k $24.2m | Reduced -24.4k |
| EMERALD ADVISERS, LLC 0.97% of their portfolio | 401.0k $24.0m | Added +6.2k |
| Allspring Global Investments Holdings, LLC 0.04% of their portfolio | 391.1k $23.4m | Added +351.5k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.06% of their portfolio | 340.0k $20.4m | Unchanged |
| VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio | 338.4k $20.3m | Added +124.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 306.4k $18.3m | Reduced -14.1k |
| NORGES BANK 0.00% of their portfolio | 295.5k $17.7m | Reduced -49.2k |
| GAMCO INVESTORS, INC. ET AL 0.17% of their portfolio | 278.1k $16.7m | Reduced -1.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 239.5k $14.3m | Added +24.5k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 232.5k $13.9m | Added +135.3k |
| ROYCE & ASSOCIATES LP 0.12% of their portfolio | 231.7k $13.9m | Added +39.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 225.7k $13.5m | Added +192.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 215.9k $12.9m | Added +54.0k |
| MAIRS & POWER INC 0.12% of their portfolio | 200.7k $12.0m | Added +16.6k |
| First Eagle Investment Management, LLC 0.03% of their portfolio | 197.8k $11.8m | Added +8.2k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 169.3k $10.1m | Reduced -14.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 162.1k $9.7m | Reduced -10.6k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 162.0k $9.7m | Added +2.0k |
| Phocas Financial Corp. 0.99% of their portfolio | 146.8k $8.8m | Reduced -3.8k |
| LORD, ABBETT & CO. LLC 0.01% of their portfolio | 130.6k $7.8m | Reduced -976.4k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 130.5k $7.8m | Reduced -719 |
| Jade Capital Advisors, LLC 5.87% of their portfolio | 130.0k $7.8m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 127.4k $7.6m | Added +2.8k |
| Chicago Capital, LLC 0.23% of their portfolio | 125.5k $7.5m | Unchanged |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 122.5k $7.3m | Reduced -11.2k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 120.9k $7.2m | Reduced -6.8k |
| CHARTWELL INVESTMENT PARTNERS, LLC 0.24% of their portfolio | 116.8k $7.0m | Reduced -24.8k |
| Legal & General Group Plc 0.00% of their portfolio | 114.8k $6.9m | Reduced -4.1k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.17% of their portfolio | 101.4k $6.1m | New |
| SEI INVESTMENTS CO 0.01% of their portfolio | 97.6k $5.8m | Added +85.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 92.9k $5.6m | Reduced -56.5k |
| ICON ADVISERS INC/CO 1.02% of their portfolio | 80.0k $4.7m | Unchanged |
| KENNEDY CAPITAL MANAGEMENT LLC 0.10% of their portfolio | 79.4k $4.8m | Added +53.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 73.0k $4.4m | Added +13.6k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 72.0k $4.3m | Reduced -11.4k |
| Stanley-Laman Group, Ltd. 0.60% of their portfolio | 71.5k $4.3m | Added +6.4k |
| Swiss National Bank 0.00% of their portfolio | 70.1k $4.2m | Added +4.0k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 68.8k $4.1m | Added +16.1k |
| CITIGROUP INC 0.00% of their portfolio | 68.7k $4.1m | Added +14.3k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 68.0k $4.1m | Reduced -1.6k |
| FMR LLC 0.00% of their portfolio | 66.8k $4.0m | Added +46.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 66.5k $4.0m | Reduced -600 |
| Allianz Asset Management GmbH 0.01% of their portfolio | 63.2k $3.8m | Reduced -25.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 62.0k $3.7m | Reduced -67.1k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 58.8k $3.5m | Reduced -16.5k |
| TUDOR INVESTMENT CORP ET AL 0.04% of their portfolio | 58.1k $3.5m | Added +9.9k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 57.7k $3.5m | Added +51.9k |
| SOROS FUND MANAGEMENT LLC 0.08% of their portfolio | 55.2k $3.3m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 50.9k $3.0m | Added +1.2k |
| GABELLI FUNDS LLC 0.02% of their portfolio | 46.9k $2.8m | Added +100 |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 44.8k $2.7m | New |
| STRS OHIO 0.01% of their portfolio | 44.5k $2.7m | Added +35.1k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 44.2k $2.6m | Reduced -1.3k |
| MARTINGALE ASSET MANAGEMENT L P 0.05% of their portfolio | 43.1k $2.6m | Reduced -3.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.00% of their portfolio | 42.9k $2.6m | New |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 42.5k $2.5m | Added +6.0k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 41.3k $2.5m | Reduced -2.0k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 39.7k $2.4m | Added +12.5k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 38.2k $2.3m | Reduced -473 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 38.2k $2.3m | Reduced -95 |
| UBS Group AG 0.00% of their portfolio | 37.2k $2.2m | Reduced -21.9k |
| BARCLAYS PLC 0.00% of their portfolio | 37.1k $2.2m | Reduced -24.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 36.9k $2.2m | Added +458 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 36.9k $2.2m | Unchanged |
| Shay Capital LLC 0.62% of their portfolio | 35.5k $2.1m | Added +23.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 35.3k $2.1m | Reduced -127 |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 35.1k $2.1m | Reduced -47.5k |
| ALGERT GLOBAL LLC 0.08% of their portfolio | 34.5k $2.1m | Reduced -2.6k |
| MACQUARIE GROUP LTD 0.00% of their portfolio | 32.5k $1.9m | New |
| Keeley-Teton Advisors, LLC 0.24% of their portfolio | 32.2k $1.9m | Reduced -3.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 32.1k $1.9m | Reduced -18 |
| Broad Bay Capital Management, LP 0.24% of their portfolio | 31.2k $1.9m | New |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 31.1k $1.9m | Added +1.2k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.03% of their portfolio | 30.6k $1.8m | Reduced -5.9k |
| TWINBEECH CAPITAL LP 0.04% of their portfolio | 30.4k $1.8m | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 30.3k $1.8m | Reduced -335 |
| CAMPBELL CAPITAL MANAGEMENT INC 0.79% of their portfolio | 30.0k $1.8m | New |
| TEXAS PERMANENT SCHOOL FUND CORP 0.01% of their portfolio | 29.0k $1.7m | Added +77 |
| New England Research & Management, Inc. 0.80% of their portfolio | 27.3k $1.6m | Added +10.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 25.3k $1.5m | Added +24.6k |
| Campbell & CO Investment Adviser LLC 0.13% of their portfolio | 25.2k $1.5m | Added +17.7k |
| Dynamic Technology Lab Private Ltd 0.13% of their portfolio | 20.8k $1.2m | Reduced -23.4k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 20.3k $1.2m | Reduced -1.0k |