AAON, Inc.
MX ˙ BMV ˙ US0003602069
SecurityMX:AAON / AAON, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,384,832 shares
Latest Disclosed Value $ 114,578,704
Dimensional Fund Advisors Lp reports 1.68% decrease in ownership of AAON / AAON, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,384,832 shares of AAON, Inc. (MX:AAON) valued at $114,578,704 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,408,432 shares of AAON, Inc.. This represents a change in shares of -1.68% 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)
2026-05-07 2026-03-31 13F AAON COM PAR $0.004 000360206 1,384,832 -23,600 -1.68 114,579 6.68 0.0051
2026-02-12 2025-12-31 13F AAON COM PAR $0.004 000360206 1,408,432 -3,006 -0.21 107,403 -18.56 0.0225
2025-11-12 2025-09-30 13F AAON COM PAR $0.004 000360206 1,411,438 -15,373 -1.08 131,873 25.32 0.0283
2025-08-12 2025-06-30 13F AAON COM PAR $0.004 000360206 1,426,811 24,008 1.71 105,229 -3.99 0.0244
2025-05-13 2025-03-31 13F AAON COM PAR $0.004 000360206 1,402,803 66,536 4.98 109,598 -30.31 0.0272
2025-02-13 2024-12-31 13F AAON COM PAR $0.004 000360206 1,336,267 -140,906 -9.54 157,259 -1.28 0.0378
2024-11-07 2024-09-30 13F AAON COM PAR $0.004 000360206 1,477,173 -91,573 -5.84 159,296 16.40 0.0386
2024-08-09 2024-06-30 13F AAON COM PAR $0.004 000360206 1,568,746 24,095 1.56 136,857 0.57 0.0357
2024-05-10 2024-03-31 13F AAON COM PAR $0.004 000360206 1,544,651 -69,924 -4.33 136,084 14.10 0.0368
2024-02-07 2023-12-31 13F AAON COM PAR $0.004 000360206 1,614,575 -127,645 -7.33 119,270 20.37 0.0348
2023-11-09 2023-09-30 13F AAON COM PAR $0.004 000360206 1,742,220 489,772 39.11 99,083 -16.56 0.0325
2023-08-09 2023-06-30 13F AAON COM PAR $0.004 000360206 1,252,448 -68,544 -5.19 118,747 -7.03 0.0378
2023-05-12 2023-03-31 13F AAON COM PAR $0.004 000360206 1,320,992 -22,546 -1.68 127,724 126,358.42 0.0430
2023-02-09 2022-12-31 13F AAON COM PAR $0.004 000360206 1,343,538 4,378 0.33 101 -99.86 0.0299
2022-11-10 2022-09-30 13F AAON COM PAR $0.004 000360206 1,339,160 -4,594 -0.34 72,154 -1.94 0.0277
2022-08-12 2022-06-30 13F AAON COM PAR $0.004 000360206 1,343,754 -13,850 -1.02 73,580 -2.75 0.0264
2022-05-13 2022-03-31 13F AAON COM 000360206 1,357,604 -16,233 -1.18 75,660 -30.67 0.0233
2022-02-09 2021-12-31 13F AAON COM 000360206 1,373,837 -25,416 -1.82 109,123 19.35 0.0330
2021-11-12 2021-09-30 13F AAON COM 000360206 1,399,253 -32,647 -2.28 91,429 2.01 0.0295
2021-08-12 2021-06-30 13F AAON COM 000360206 1,431,900 -13,132 -0.91 89,625 -11.41 0.0284
2021-05-14 2021-03-31 13F AAON COM 000360206 1,445,032 -167,517 -10.39 101,168 -5.84 0.0335
2021-03-08 2020-12-31 13F/A-2 AAON COM 000360206 1,612,549 -68,096 -4.05 107,444 6.11 0.0388
2021-02-11 2020-12-31 13F AAON COM 000360206 1,612,549 -68,096 107,444 38,803.0618
2020-11-12 2020-09-30 13F AAON COM 000360206 1,680,645 -30,857 -1.80 101,257 8.98 0.0429
2020-08-13 2020-06-30 13F AAON COM 000360206 1,711,502 -33,432 -1.92 92,916 10.20 0.0408
2020-05-14 2020-03-31 13F AAON COM 000360206 1,744,934 2,178 0.12 84,314 -2.09 0.0439
2020-02-14 2019-12-31 13F AAON COM 000360206 1,742,756 -32,469 -1.83 86,110 5.59 0.0314
2019-11-12 2019-09-30 13F AAON COM 000360206 1,775,225 -26,664 -1.48 81,553 -9.80 0.0317
2019-08-13 2019-06-30 13F AAON COM 000360206 1,801,889 -48,102 -2.60 90,418 5.84 0.0351
2019-08-12 2019-03-31 13F/A-2 AAON COM 000360206 1,849,991 2,075 0.11 85,432 31.86 0.0340
2019-05-10 2019-03-31 13F AAON COM 000360206 1,849,991 2,075 85,432
2019-02-26 2018-12-31 13F/A-1 AAON COM 000360206 1,847,916 15,652 0.85 64,788 -6.46 0.0293
2019-02-13 2018-12-31 13F AAON COM 000360206 1,847,916 15,652 64,788
2018-11-13 2018-09-30 13F AAON COM 000360206 1,832,264 6,818 0.37 69,259 14.11 0.0264
2018-08-10 2018-06-30 13F AAON COM 000360206 1,825,446 9,212 0.51 60,696 -14.31 0.0242
2018-05-11 2018-03-31 13F AAON COM 000360206 1,816,234 26,191 1.46 70,833 7.82 0.0295
2018-02-12 2017-12-31 13F AAON COM 000360206 1,790,043 49,326 2.83 65,695 9.47 0.0272
2017-11-13 2017-09-30 13F AAON COM 000360206 1,740,717 5,824 0.34 60,012 -6.13 0.0262
2017-08-11 2017-06-30 13F AAON COM 000360206 1,734,893 -42,475 -2.39 63,930 1.75 0.0295
2017-05-12 2017-03-31 13F AAON COM 000360206 1,777,368 -84,601 -4.54 62,830 2.10 0.0300
2017-02-09 2016-12-31 13F AAON COM 000360206 1,861,969 -39,279 -2.07 61,539 12.31 0.0307
2016-11-10 2016-09-30 13F AAON COM 000360206 1,901,248 7,868 0.42 54,793 5.20 0.0296
2016-08-09 2016-06-30 13F AAON COM 000360206 1,893,380 -22,427 -1.17 52,086 -2.90 0.0300
2016-05-13 2016-03-31 13F AAON COM 000360206 1,915,807 77,347 4.21 53,642 25.65 0.0321
2016-02-10 2015-12-31 13F AAON COM 000360206 1,838,460 25,149 1.39 42,690 21.48 0.0266
2015-11-13 2015-09-30 13F AAON COM 000360206 1,813,311 47,264 2.68 35,142 -11.64 0.0231
2015-08-14 2015-06-30 13F AAON COM 000360206 1,766,047 36,296 2.10 39,771 -6.27 0.0244
2015-05-14 2015-03-31 13F AAON COM 000360206 1,729,751 35,766 2.11 42,431 11.87 0.0268
2015-02-06 2014-12-31 13F AAON COM 000360206 1,693,985 29,441 1.77 37,928 33.95 0.0249
2014-11-13 2014-09-30 13F AAON COM 000360206 1,664,544 577,235 53.09 28,315 -22.31 0.0201
2014-08-08 2014-06-30 13F AAON COM 000360206 1,087,309 57,071 5.54 36,446 26.93 0.0253
2014-05-14 2014-03-31 13F AAON COM 000360206 1,030,238 15,186 1.50 28,713 -11.46 0.0215
2014-02-12 2013-12-31 13F AAON COM 000360206 1,015,052 13,577 1.36 32,431 21.93 0.0253
2013-11-13 2013-09-30 13F AAON COM 000360206 1,001,475 349,543 53.62 26,599 23.34 0.0230
2013-08-15 2013-06-30 13F AAON COM 000360206 651,932 651,932 21,566 0.0203
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.