AAON, Inc.
US ˙ NasdaqGS ˙ US0003602069

SecurityAAON / AAON, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership32,392 shares
Latest Disclosed Value $ 2,680
Amalgamated Bank reports 0.54% increase in ownership of AAON / AAON, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 32,392 shares of AAON, Inc. (US:AAON) valued at $2,680,438 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 32,218 shares of AAON, Inc.. This represents a change in shares of 0.54% during the quarter. The current value of the position is $4,802,114 USD.

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)
2026-05-08 2026-03-31 13F AAON COM 000360206 32,392 174 0.54 3 0.00 0.0205
2026-02-05 2025-12-31 13F AAON COM 000360206 32,218 -1,316 -3.92 2 -33.33 0.0177
2025-10-29 2025-09-30 13F AAON COM 000360206 33,534 474 1.43 3 50.00 0.0224
2025-08-04 2025-06-30 13F AAON COM 000360206 33,060 -1,008 -2.96 2 0.00 0.0188
2025-04-25 2025-03-31 13F AAON COM 000360206 34,068 -889 -2.54 3 -50.00 0.0228
2025-02-04 2024-12-31 13F AAON COM 000360206 34,957 237 0.68 4 33.33 0.0338
2024-10-30 2024-09-30 13F AAON COM 000360206 34,720 -647 -1.83 4 0.00 0.0308
2024-08-12 2024-06-30 13F AAON COM 000360206 35,367 13,964 65.24 3 200.00 0.0263
2024-04-23 2024-03-31 13F AAON COM 000360206 21,403 -7,483 -25.91 2 -50.00 0.0161
2024-02-06 2023-12-31 13F AAON COM 000360206 28,886 -1,407 -4.64 2 100.00 0.0170
2023-11-08 2023-09-30 13F AAON COM 000360206 30,293 10,449 52.66 2 0.00 0.0147
2023-08-11 2023-06-30 13F AAON COM 000360206 19,844 279 1.43 2 0.00 0.0152
2023-05-02 2023-03-31 13F AAON COM 000360206 19,565 -1,348 -6.45 2 0.00 0.0161
2023-02-10 2022-12-31 13F AAON COM 000360206 20,913 218 1.05 2 -99.91 0.0140
2022-11-09 2022-09-30 13F AAON COM 000360206 20,695 212 1.04 1,115 -0.62 0.0108
2022-08-15 2022-06-30 13F AAON COM 000360206 20,483 43 0.21 1,122 -1.49 0.0105
2022-08-25 2022-03-31 13F/A-1 AAON COM 000360206 20,440 -1,097 -5.09 1,139 -33.43 0.0088
2022-06-30 2022-03-31 13F AAON COM 000360206 20,440 -1,097 1,139 0.0090
2022-02-15 2021-12-31 13F/A-1 AAON COM 000360206 21,537 -349 -1.59 1,711 19.65 0.0126
2022-02-15 2021-12-31 13F AAON COM 000360206 21,537 -349 1,711 0.0126
2021-10-29 2021-09-30 13F AAON COM 000360206 21,886 -591 -2.63 1,430 1.63 0.0121
2021-08-16 2021-06-30 13F AAON COM 000360206 22,477 16,275 262.42 1,407 224.19 0.0113
2021-05-13 2021-03-31 13F AAON COM 000360206 6,202 -572 -8.44 434 -3.77 0.0163
2021-02-12 2020-12-31 13F AAON COM 000360206 6,774 60 0.89 451 11.36 0.0171
2020-10-30 2020-09-30 13F AAON COM 000360206 6,714 -212 -3.06 405 7.71 0.0176
2020-08-10 2020-06-30 13F AAON COM 000360206 6,926 -838 -10.79 376 0.27 0.0174
2020-05-13 2020-03-31 13F AAON COM 000360206 7,764 -326 -4.03 375 -6.25 0.0092
2020-02-13 2019-12-31 13F AAON COM 000360206 8,090 483 6.35 400 14.61 0.0074
2019-11-13 2019-09-30 13F AAON COM 000360206 7,607 -129 -1.67 349 -10.05 0.0073
2019-08-14 2019-06-30 13F AAON COM 000360206 7,736 1,086 16.33 388 26.38 0.0091
2019-05-15 2019-03-31 13F AAON COM 000360206 6,650 209 3.24 307 35.84 0.0074
2019-02-15 2018-12-31 13F AAON COM 000360206 6,441 6,441 226 0.0064
2018-11-14 2018-09-30 13F AAON COM 000360206 0 -6,705 -100.00 0 -100.00
2018-07-18 2018-06-30 13F AAON COM 000360206 6,705 757 12.73 223 -3.88 0.0054
2018-05-22 2018-03-31 13F AAON COM 000360206 5,948 -114 -1.88 232 4.50 0.0062
2018-02-13 2017-12-31 13F AAON COM 000360206 6,062 6,062 222 0.0060
2017-11-09 2017-09-30 13F AAON COM 000360206 0 -5,720 -100.00 0 -100.00
2017-08-10 2017-06-30 13F AAON COM 000360206 5,720 5,720 211 0.0069
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.