% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for AER in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 12,938,19012.9M | $1.8B | — | ADD 3% |
| 2 | EAGLE CAPITAL MANAGEMENT LLC | 7,315,3067.3M | $1.0B | — | TRIM -28% |
| 3 | HARRIS ASSOCIATES L Ptracked | 5,901,6225.9M | $810M | — | — |
| 4 | STATE STREET CORP | 5,093,9575.1M | $699M | — | — |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | 4,098,2824.1M | $562M | — | TRIM -2% |
| 6 | FRANKLIN RESOURCES INC | 3,789,3563.8M | $520M | — | ADD 11% |
| 7 | TWO SIGMA INVESTMENTS, LP | 3,535,5993.5M | $485M | — | ADD 130% |
| 8 | DONALD SMITH & CO., INC. | 3,150,6753.2M | $432M | — | ADD 2% |
| 9 | 59 North Capital Management, LP | 3,123,3993.1M | $428M | — | TRIM -6% |
| 10 | JPMORGAN CHASE & CO | 3,071,1353.1M | $405M | — | ADD 12% |
| 11 | Ninety One UK Ltd | 2,810,3282.8M | $386M | — | — |
| 12 | Mawer Investment Management Ltd. | 2,679,8612.7M | $368M | — | TRIM -18% |
| 13 | LYRICAL ASSET MANAGEMENT LP | 2,601,8512.6M | $357M | — | TRIM -6% |
| 14 | LONDON CO OF VIRGINIA | 2,544,0682.5M | $349M | — | TRIM -8% |
| 15 | WGI DM, LLC | 2,467,1222.5M | $338M | — | TRIM -5% |
| 16 | Allspring Global Investments Holdings, LLC | 2,410,0322.4M | $337M | — | TRIM -12% |
| 17 | Amundi | 2,088,2532.1M | $286M | — | TRIM -9% |
| 18 | WELLINGTON MANAGEMENT GROUP LLP | 1,864,2641.9M | $256M | — | TRIM -9% |
| 19 | MORGAN STANLEY | 1,840,3671.8M | $252M | — | ADD 5% |
| 20 | LORD, ABBETT & CO. LLC | 1,765,4351.8M | $242M | — | — |
| 21 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1,673,5211.7M | $230M | — | TRIM -15% |
| 22 | AMERIPRISE FINANCIAL INC | 1,661,5801.7M | $228M | — | TRIM -13% |
| 23 | GEODE CAPITAL MANAGEMENT, LLC | 1,565,9001.6M | $213M | — | TRIM -3% |
| 24 | BANK OF AMERICA CORP /DE/ | 1,544,5311.5M | $212M | — | TRIM -5% |
| 25 | AustralianSuper Pty Ltd | 1,449,0471.4M | $199M | — | ADD 4% |
| 26 | TOMS Capital Investment Management LP | 1,394,0001.4M | $191M | — | NEW |
| 27 | L1 Capital International Pty Ltd | 1,344,9921.3M | $185M | — | TRIM -12% |
| 28 | DEUTSCHE BANK AG\ | 1,230,0691.2M | $169M | — | ADD 10% |
| 29 | High Ground Investment Management LLP | 1,211,5731.2M | $166M | — | ADD 3% |
| 30 | NORTHERN TRUST CORP | 1,210,8131.2M | $166M | — | TRIM -3% |
| 31 | Legal & General Group Plc | 1,165,6331.2M | $160M | — | — |
| 32 | Qube Research & Technologies Ltd | 1,142,3301.1M | $157M | — | TRIM -6% |
| 33 | MBB PUBLIC MARKETS I LLC | 1,133,3571.1M | $155M | — | — |
| 34 | Dorsey Asset Management, LLC | 1,123,4891.1M | $154M | — | TRIM -8% |
| 35 | NEUBERGER BERMAN GROUP LLC | 1,073,1981.1M | $147M | — | TRIM -17% |
| 36 | Avantyr Capital Partners, LP | 1,059,5491.1M | $145M | — | ADD 46% |
| 37 | THOMPSON SIEGEL & WALMSLEY LLC | 1,013,4021.0M | $139M | — | TRIM -4% |
| 38 | Empyrean Capital Partners, LP | 1,000,0001.0M | $137M | — | TRIM -9% |
| 39 | KBC Group NV | 982,037982,037 | $135M | — | — |
| 40 | Slate Path Capital LP | 974,544974,544 | $134M | — | ADD 4% |
| 41 | COOKE & BIELER LP | 936,322936,322 | $128M | — | TRIM -10% |
| 42 | Russell Investments Group, Ltd. | 931,478931,478 | $128M | — | TRIM -8% |
| 43 | Tidal Investments LLC | 909,278909,278 | $121M | — | ADD 785% |
| 44 | CapitalatWork S.A. | 839,132839,132 | $115M | — | NEW |
| 45 | Rockefeller Capital Management L.P. | 838,380838,380 | $115M | — | — |
| 46 | Assenagon Asset Management S.A. | 835,657835,657 | $115M | — | TRIM -39% |
| 47 | CHECK CAPITAL MANAGEMENT INC/CA | 817,655817,655 | $112M | — | — |
| 48 | GOLDMAN SACHS GROUP INC | 771,295771,295 | $106M | — | TRIM -38% |
| 49 | SEI INVESTMENTS CO | 769,611769,611 | $106M | — | ADD 23% |
| 50 | FMR LLC | 747,654747,654 | $103M | — | ADD 23% |
| 51 | Invesco Ltd. | 727,287727,287 | $100M | — | ADD 36% |
| 52 | UBS Group AG | 720,099720,099 | $99M | — | TRIM -38% |
| 53 | AXIOM INVESTORS LLC /DE | 693,081693,081 | $95M | — | ADD 29% |
| 54 | National Pension Service | 651,036651,036 | $89M | — | ADD 7% |
| 55 | D. E. Shaw & Co., Inc. | 648,851648,851 | $89M | — | TRIM -57% |
| 56 | ENVESTNET ASSET MANAGEMENT INC | 626,219626,219 | $86M | — | ADD 10% |
| 57 | Nuveen, LLC | 612,342612,342 | $84M | — | — |
| 58 | Balyasny Asset Management L.P. | 596,443596,443 | $82M | — | ADD 121% |
| 59 | Alyeska Investment Group, L.P. | 580,560580,560 | $80M | — | TRIM -5% |
| 60 | Swiss National Bank | 579,800579,800 | $80M | — | ADD 20% |
| 61 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 574,252574,252 | $79M | — | TRIM -22% |
| 62 | Man Group plc | 552,428552,428 | $76M | — | TRIM -26% |
| 63 | TODD ASSET MANAGEMENT LLC | 530,143530,143 | $73M | — | — |
| 64 | Aberdeen Group plc | 521,226521,226 | $72M | — | — |
| 65 | 140 Summer Partners LP | 508,566508,566 | $70M | — | TRIM -10% |
| 66 | Clal Insurance Enterprises Holdings Ltd | 490,000490,000 | $67M | — | — |
| 67 | Janney Montgomery Scott LLC | 486,450486,450 | $67M | — | ADD 2% |
| 68 | BARCLAYS PLC | 479,246479,246 | $66M | — | ADD 33% |
| 69 | LSV ASSET MANAGEMENT | 442,428442,428 | $61M | — | ADD 23% |
| 70 | REDWOOD CAPITAL MANAGEMENT, LLC | 404,266404,266 | $55M | — | TRIM -69% |
| 71 | CANADA PENSION PLAN INVESTMENT BOARD | 403,226403,226 | $55M | — | ADD 14% |
| 72 | NATIXIS ADVISORS, LLC | 395,467395,467 | $54M | — | ADD 11% |
| 73 | VR Advisory Services Ltd | 384,793384,793 | $53M | — | ADD 92% |
| 74 | Allianz Asset Management GmbH | 368,604368,604 | $51M | — | ADD 52% |
| 75 | JONES FINANCIAL COMPANIES LLLP | 371,179371,179 | $50M | — | ADD 16130% |
| 76 | Sculptor Capital LP | 357,000357,000 | $49M | — | — |
| 77 | Bank of New York Mellon Corp | 353,310353,310 | $48M | — | ADD 5% |
| 78 | WELLS FARGO & COMPANY/MN | 352,479352,479 | $48M | — | TRIM -3% |
| 79 | Universal- Beteiligungs- und Servicegesellschaft mbH | 347,530347,530 | $48M | — | TRIM -14% |
| 80 | Sumitomo Mitsui Trust Group, Inc. | 340,282340,282 | $47M | — | TRIM -10% |
| 81 | SCHRODER INVESTMENT MANAGEMENT GROUP | 353,092353,092 | $47M | — | ADD 28% |
| 82 | TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | 327,670327,670 | $45M | — | — |
| 83 | California Public Employees Retirement System | 320,947320,947 | $44M | — | ADD 3% |
| 84 | MILLENNIUM MANAGEMENT LLC | 316,623316,623 | $43M | — | ADD 29% |
| 85 | DENDUR CAPITAL LP | 313,000313,000 | $43M | — | NEW |
| 86 | Thrivent Financial for Lutherans | 311,961311,961 | $43M | — | TRIM -18% |
| 87 | STOREBRAND ASSET MANAGEMENT AS | 281,981281,981 | $39M | — | ADD 28% |
| 88 | ROYAL BANK OF CANADA | 280,274280,274 | $38M | — | TRIM -9% |
| 89 | JANE STREET GROUP, LLC | 279,046279,046 | $38M | — | ADD 1803% |
| 90 | AMERICAN CENTURY COMPANIES INC | 278,773278,773 | $38M | — | ADD 24% |
| 91 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 274,150274,150 | $38M | — | — |
| 92 | BRUNI J V & CO /CO | 268,965268,965 | $37M | — | ADD 37% |
| 93 | Mitsubishi UFJ Trust & Banking Corp | 254,711254,711 | $35M | — | TRIM -4% |
| 94 | Aristotle Capital Boston, LLC | 251,561251,561 | $35M | — | TRIM -16% |
| 95 | Caisse de depot et placement du Quebec | 251,220251,220 | $34M | — | ADD 11% |
| 96 | MACKENZIE FINANCIAL CORP | 240,571240,571 | $33M | — | TRIM -5% |
| 97 | M3F, Inc. | 238,000238,000 | $33M | — | ADD 14% |
| 98 | WEDGE CAPITAL MANAGEMENT L L P/NC | 225,645225,645 | $31M | — | TRIM -4% |
| 99 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 223,222223,222 | $31M | — | TRIM -3% |
| 100 | Zurich Insurance Group Ltd/FI | 219,061219,061 | $30M | — | TRIM -10% |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 10.9M | 11.2M | 10.9M | 12.6M | 12.6M | 12.9M | $1.8B |
| EAGLE CAPITAL MANAGEMENT LLC | 11.9M | 13.5M | 12.8M | 11.6M | 10.2M | 7.3M | $1.0B |
| HARRIS ASSOCIATES L Ptracked | — | — | — | — | 5.8M | 5.9M | $810M |
| STATE STREET CORP | 5.2M | 5.0M | 5.0M | 4.9M | 5.1M | 5.1M | $699M |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.8M | 1.8M | 4.3M | 4.2M | 4.2M | 4.1M | $562M |
| FRANKLIN RESOURCES INC | 5.4M | 5.1M | 4.2M | 3.8M | 3.4M | 3.8M | $520M |
| TWO SIGMA INVESTMENTS, LP | 117K | 751K | 1.1M | 1.6M | 1.5M | 3.5M | $485M |
| DONALD SMITH & CO., INC. | 3.5M | 3.3M | 3.1M | 3.1M | 3.1M | 3.2M | $432M |
| 59 North Capital Management, LP | 3.7M | 5.2M | 4.3M | 3.9M | 3.3M | 3.1M | $428M |
| JPMORGAN CHASE & CO | 1.6M | 2.3M | 2.9M | 5.3M | 2.7M | 3.1M | $405M |
| Ninety One UK Ltd | 2.6M | 1.9M | 2.8M | 5.5M | 2.8M | 2.8M | $386M |
| Mawer Investment Management Ltd. | — | — | 1.6M | 2.1M | 3.3M | 2.7M | $368M |
| LYRICAL ASSET MANAGEMENT LP | 3.1M | 3.0M | 2.8M | 3.0M | 2.8M | 2.6M | $357M |
| LONDON CO OF VIRGINIA | 3.5M | 3.4M | 3.2M | 3.0M | 2.8M | 2.5M | $349M |
| WGI DM, LLC | — | 894K | 1.8M | 2.6M | 2.6M | 2.5M | $338M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP | +1,996,703 | $274M | ADD |
| TOMS Capital Investment Management LP | +1,394,000 | $191M | OPEN |
| CapitalatWork S.A. | +839,132 | $115M | OPEN |
| Tidal Investments LLC | +806,561 | $111M | ADD |
| FRANKLIN RESOURCES INC | +373,341 | $51M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| EAGLE CAPITAL MANAGEMENT LLC | −2,854,596 | $392M | TRIM |
| NORGES BANK | −2,449,721 | $336M | CLOSE |
| TWO SIGMA ADVISERS, LP | −1,802,200 | $247M | CLOSE |
| REDWOOD CAPITAL MANAGEMENT, LLC | −900,597 | $124M | TRIM |
| Brandywine Global Investment Management, LLC | −873,309 | $120M | CLOSE |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 663 | 144,182,512 | — | $19.8B |
| 2025-Q4 | 633 | 150,306,603 | — | $21.6B |
| 2025-Q3 | 573 | 153,304,740 | — | $18.6B |
| 2025-Q2 | 591 | 156,896,345 | — | $18.3B |
| 2025-Q1 | 556 | 159,811,289 | — | $16.3B |
| 2024-Q4 | 552 | 164,288,520 | — | $15.7B |
| 2024-Q3 | 543 | 166,238,875 | — | $15.8B |
| 2024-Q2 | 507 | 181,041,089 | — | $16.9B |
| 2024-Q1 | 480 | 188,595,915 | — | $16.4B |
| 2023-Q4 | 448 | 195,006,255 | — | $14.5B |
| 2023-Q3 | 386 | 203,369,639 | — | $12.7B |
| 2023-Q2 | 375 | 222,528,869 | — | $14.1B |
| 2023-Q1 | 365 | 230,663,583 | — | $13.0B |
| 2022-Q4 | 329 | 238,872,490 | — | $13.9B |
| 2022-Q3 | 305 | 242,228,998 | — | $10.3B |
| 2022-Q2 | 310 | 239,614,781 | — | $9.8B |
| 2022-Q1 | 342 | 236,511,676 | — | $11.9B |
| 2021-Q4 | 331 | 236,194,056 | — | $15.4B |
| 2021-Q3 | 298 | 121,368,282 | — | $7.0B |
| 2021-Q2 | 305 | 118,042,844 | — | $6.0B |
| 2021-Q1 | 305 | 120,510,755 | — | $6.9B |
| 2020-Q4 | 308 | 117,890,752 | — | $5.6B |
| 2020-Q3 | 296 | 116,570,267 | — | $2.9B |
| 2020-Q2 | 306 | 116,235,876 | — | $3.6B |
| 2020-Q1 | 314 | 114,386,066 | — | $2.6B |
| 2019-Q4 | 371 | 117,950,366 | — | $7.2B |
| 2019-Q3 | 344 | 121,303,526 | — | $6.6B |
| 2019-Q2 | 346 | 123,297,033 | — | $6.4B |
| 2019-Q1 | 343 | 125,367,798 | — | $5.8B |
| 2018-Q4 | 363 | 130,484,826 | — | $5.2B |
| 2018-Q3 | 343 | 134,890,032 | — | $7.8B |
| 2018-Q2 | 337 | 129,207,997 | — | $7.0B |
| 2018-Q1 | 333 | 129,476,151 | — | $6.6B |
| 2017-Q4 | 349 | 133,955,939 | — | $7.0B |
| 2017-Q3 | 318 | 137,408,475 | — | $7.0B |
| 2017-Q2 | 308 | 147,396,059 | — | $6.8B |
| 2017-Q1 | 300 | 148,413,222 | — | $6.8B |
| 2016-Q4 | 296 | 153,632,259 | — | $6.4B |
| 2016-Q3 | 273 | 163,735,979 | — | $6.2B |
| 2016-Q2 | 281 | 167,999,921 | — | $5.6B |
| 2016-Q1 | 289 | 168,444,424 | — | $6.5B |
| 2015-Q4 | 272 | 178,646,357 | — | $7.7B |
| 2015-Q3 | 269 | 178,569,817 | — | $6.8B |
| 2015-Q2 | 265 | 188,670,939 | — | $8.6B |
| 2015-Q1 | 178 | 113,689,618 | — | $5.0B |
| 2014-Q4 | 166 | 101,646,204 | — | $3.9B |
| 2014-Q3 | 176 | 99,062,185 | — | $4.1B |
| 2014-Q2 | 154 | 81,266,135 | — | $3.7B |
| 2014-Q1 | 138 | 78,775,628 | — | $3.3B |
| 2013-Q4 | 137 | 78,609,468 | — | $3.0B |
| 2013-Q3 | 103 | 77,766,945 | — | $1.5B |
| 2013-Q2 | 102 | 71,242,750 | — | $1.2B |
| 2013-Q1 | 9 | 9,572,615 | — | $148M |
