AAON, Inc.
MX ˙ BMV ˙ US0003602069
SecurityMX:AAON / AAON, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,254,403 shares
Latest Disclosed Value $ 103,802,076
Morgan Stanley reports 25.67% decrease in ownership of AAON / AAON, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,254,403 shares of AAON, Inc. (MX:AAON) valued at $103,802,076 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,687,671 shares of AAON, Inc.. This represents a change in shares of -25.67% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AAON COM PAR $0.004 000360206 1,254,403 -433,268 -25.67 103,802 -19.34 0.0063
2026-05-27 2025-12-31 13F/A-1 AAON COM PAR $0.004 000360206 1,687,671 -321,778 -16.01 128,685 -31.46 0.0077
2026-02-13 2025-12-31 13F AAON COM PAR $0.004 000360206 1,687,671 -321,778 128,685 0.0077
2026-05-27 2025-09-30 13F/A-1 AAON COM PAR $0.004 000360206 2,009,449 -185,075 -8.43 187,763 16.01 0.0114
2025-11-14 2025-09-30 13F AAON COM PAR $0.004 000360206 2,009,449 -185,075 187,763 0.0114
2025-08-15 2025-06-30 13F AAON COM PAR $0.004 000360206 2,194,524 213,130 10.76 161,846 4.55 0.0105
2025-05-15 2025-03-31 13F AAON COM PAR $0.004 000360206 1,981,394 624,311 46.00 154,806 -3.07 0.0111
2025-05-15 2024-12-31 13F/A-1 AAON COM PAR $0.004 000360206 1,357,083 75,080 5.86 159,702 15.52 0.0112
2025-02-14 2024-12-31 13F AAON COM PAR $0.004 000360206 1,357,083 75,080 159,702 0.0112
2025-05-14 2024-09-30 13F/A-2 AAON COM PAR $0.004 000360206 1,282,003 -65,020 -4.83 138,251 17.65 0.0100
2025-02-14 2024-09-30 13F/A-1 AAON COM PAR $0.004 000360206 1,282,003 -65,020 138,251 0.0100
2024-11-14 2024-09-30 13F AAON COM PAR $0.004 000360206 1,282,003 -65,020 138,251 0.0100
2025-05-14 2024-06-30 13F/A-2 AAON COM PAR $0.004 000360206 1,347,023 -466,276 -25.71 117,514 -26.44 0.0091
2024-10-17 2024-06-30 13F/A-1 AAON COM PAR $0.004 000360206 1,347,023 -466,276 117,514 0.0091
2024-08-14 2024-06-30 13F AAON COM PAR $0.004 000360206 1,347,023 -466,276 117,514 0.0091
2024-10-17 2024-03-31 13F/A-2 AAON COM PAR $0.004 000360206 1,813,299 -91,671 -4.81 159,752 13.52 0.0128
2024-08-16 2024-03-31 13F/A-1 AAON COM PAR $0.004 000360206 1,813,299 -91,671 159,752 0.0128
2024-05-15 2024-03-31 13F AAON COM PAR $0.004 000360206 1,813,299 -91,671 159,752 0.0128
2024-08-16 2023-12-31 13F/A-1 AAON COM PAR $0.004 000360206 1,904,970 -159,656 -7.73 140,720 19.85 0.0124
2024-02-13 2023-12-31 13F AAON COM PAR $0.004 000360206 1,904,970 -159,656 140,720 0.0124
2023-11-15 2023-09-30 13F AAON COM PAR $0.004 000360206 2,064,626 571,127 38.24 117,415 -17.08 0.0119
2023-08-14 2023-06-30 13F AAON COM PAR $0.004 000360206 1,493,499 14,450 0.98 141,599 -0.99 0.0140
2023-05-15 2023-03-31 13F AAON COM PAR $0.004 000360206 1,479,049 -340,669 -18.72 143,009 4.34 0.0153
2023-02-14 2022-12-31 13F AAON COM PAR $0.004 000360206 1,819,718 1,387,594 321.11 137,061 488.65 0.0156
2022-11-14 2022-09-30 13F AAON COM PAR $0.004 000360206 432,124 -58,619 -11.94 23,284 -13.36 0.0032
2022-10-27 2022-06-30 13F/A-1 AAON COM PAR $0.004 000360206 490,743 28,986 6.28 26,873 4.43 0.0035
2022-08-15 2022-06-30 13F AAON COM PAR $0.004 000360206 490,743 28,986 26,873 0.0007
2022-10-27 2022-03-31 13F/A-1 AAON COM PAR $0.004 000360206 461,757 -143,391 -23.70 25,734 -46.46 0.0035
2022-05-13 2022-03-31 13F AAON COM PAR $0.004 000360206 461,757 -143,391 25,734 0.0035
2022-02-14 2021-12-31 13F AAON COM PAR $0.004 000360206 605,148 170,904 39.36 48,067 69.40 0.0059
2021-11-15 2021-09-30 13F AAON COM PAR $0.004 000360206 434,244 130,340 42.89 28,375 49.17 0.0038
2021-08-23 2021-06-30 13F/A-1 AAON COM PAR $0.004 000360206 303,904 40,764 15.49 19,022 3.26 0.0025
2021-08-16 2021-06-30 13F AAON COM PAR $0.004 000360206 303,904 40,764 19,022 0.0005
2021-05-17 2021-03-31 13F AAON COM PAR $0.004 000360206 263,140 -1,582 -0.60 18,421 4.43 0.0027
2021-02-16 2020-12-31 13F AAON COM PAR $0.004 000360206 264,722 -85,707 -24.46 17,639 -16.45 0.0027
2020-11-13 2020-09-30 13F AAON COM PAR $0.004 000360206 350,429 137,311 64.43 21,113 82.48 0.0041
2020-08-14 2020-06-30 13F AAON COM PAR $0.004 000360206 213,118 71,048 50.01 11,570 68.54 0.0026
2020-05-26 2020-03-31 13F/A-1 AAON COM PAR $0.004 000360206 142,070 -94,183 -39.87 6,865 -41.19 0.0019
2020-05-15 2020-03-31 13F AAON COM PAR $0.004 000360206 142,070 -94,183 6,865 527.3751
2020-02-14 2019-12-31 13F AAON COM PAR $0.004 000360206 236,253 60,510 34.43 11,673 44.61 0.0027
2019-11-14 2019-09-30 13F AAON COM PAR $0.004 000360206 175,743 -37,530 -17.60 8,072 -24.57 0.0021
2019-08-14 2019-06-30 13F AAON COM PAR $0.004 000360206 213,273 166,112 352.22 10,702 391.59 0.0028
2019-05-15 2019-03-31 13F AAON COM PAR $0.004 000360206 47,161 -54,540 -53.63 2,177 -38.93 0.0006
2019-02-14 2018-12-31 13F AAON COM PAR $0.004 000360206 101,701 -3,885 -3.68 3,565 -10.70 0.0011
2019-04-23 2018-09-30 13F/A-2 AAON COM PAR $0.004 000360206 105,586 -13,906 -11.64 3,992 0.48 0.0010
2018-11-20 2018-09-30 13F/A-1 AAON COM PAR $0.004 000360206 105,586 0 3,992 0.0010
2018-11-14 2018-09-30 13F AAON COM PAR $0.004 000360206 105,586 -13,906 3,992
2019-04-23 2018-06-30 13F/A-1 AAON COM PAR $0.004 000360206 119,492 1,729 1.47 3,973 -13.52 0.0011
2018-08-14 2018-06-30 13F AAON COM PAR $0.004 000360206 119,492 1,729 3,973
2019-04-23 2018-03-31 13F/A-1 AAON COM PAR $0.004 000360206 117,763 12,803 12.20 4,594 19.26 0.0013
2018-05-14 2018-03-31 13F AAON COM PAR $0.004 000360206 117,763 12,803 4,594
2019-04-23 2017-12-31 13F/A-1 AAON COM PAR $0.004 000360206 104,960 29,911 39.86 3,852 48.84 0.0011
2018-02-14 2017-12-31 13F AAON COM PAR $0.004 000360206 104,960 29,911 3,852
2017-11-14 2017-09-30 13F AAON COM PAR $0.004 000360206 75,049 19,400 34.86 2,588 26.18 0.0008
2017-08-11 2017-06-30 13F AAON COM PAR $0.004 000360206 55,649 -26,086 -31.92 2,051 -29.03 0.0006
2017-05-22 2017-03-31 13F/A-1 AAON COM PAR $0.004 000360206 81,735 -149,830 -64.70 2,890 -62.24 0.0009
2017-05-12 2017-03-31 13F AAON COM PAR $0.004 000360206 81,735 2,890
2017-02-22 2016-12-31 13F/A-1 AAON COM PAR $0.004 000360206 231,565 171,182 283.49 7,653 339.83 0.0025
2017-02-13 2016-12-31 13F AAON COM PAR $0.004 000360206 231,565 7,653
2016-11-10 2016-09-30 13F AAON COM PAR $0.004 000360206 60,383 -69,000 -53.33 1,740 -51.11 0.0006
2016-08-12 2016-06-30 13F AAON COM PAR $0.004 000360206 129,383 79,206 157.85 3,559 153.49 0.0013
2016-05-12 2016-03-31 13F AAON COM PAR $0.004 000360206 50,177 32,253 179.94 1,404 236.69 0.0005
2016-02-09 2015-12-31 13F AAON COM PAR $0.004 000360206 17,924 -152,606 -89.49 417 -87.38 0.0002
2016-02-08 2015-09-30 13F/A-1 AAON COM PAR $0.004 000360206 170,530 12,988 8.24 3,304 -6.88 0.0012
2015-11-09 2015-09-30 13F AAON COM PAR $0.004 000360206 170,530 3,304
2015-08-12 2015-06-30 13F AAON COM PAR $0.004 000360206 157,542 -18,079 -10.29 3,548 -17.64 0.0012
2015-05-14 2015-03-31 13F AAON COM PAR $0.004 000360206 175,621 -1,343 -0.76 4,308 8.76 0.0016
2015-02-13 2014-12-31 13F AAON COM PAR $0.004 000360206 176,964 -32,272 -15.42 3,961 11.26 0.0014
2014-12-16 2014-09-30 13F/A-1 AAON COM PAR $0.004 000360206 209,236 -29,527 -12.37 3,560 -55.52 0.0014
2014-11-14 2014-09-30 13F AAON COM PAR $0.004 000360206 209,236 3,560
2014-08-12 2014-06-30 13F AAON COM PAR $0.004 000360206 238,763 37,772 18.79 8,003 42.86 0.0137
2014-05-13 2014-03-31 13F AAON COM PAR $0.004 000360206 200,991 44,923 28.78 5,602 12.33 0.0023
2014-02-13 2013-12-31 13F AAON COM PAR $0.004 000360206 156,068 16,605 11.91 4,987 34.64 0.0021
2013-11-13 2013-09-30 13F AAON INC COM ST COM 000360206 139,463 47,662 51.92 3,704 21.92 0.0018
2013-08-08 2013-06-30 13F AAON INC COM ST COM 000360206 91,801 91,801 3,038 0.0015
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.