# AAON INC COM PAR $0.004

AAON INC COM PAR $0.004 is a security (CUSIP 000360206) tracked across SEC portfolio filings. 455 institutional managers reported $6.1B on Form 13F as of 2026-06-30; 45 registered fund positions totaling $638.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: AAON INC
- Class: COM PAR $0.004
- CUSIP: 000360206
- Asset category: EC
- 13F holders: 455
- 13F value: $6.1B
- 13F period: 2026-06-30
- N-PORT fund positions: 45
- N-PORT value: $638.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 455 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $660.1M | 7,977,164 |
| BlackRock, Inc. | New York, NY | $542.9M | 6,560,422 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $487.7M | 6,396,501 |
| [WASATCH ADVISORS LP](https://search.stillhousedata.com/firm/6081) | SALT LAKE CITY, UT | $296.7M | 2,338,517 |
| STATE STREET CORP | BOSTON, MA | $170.7M | 2,062,614 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $166.6M | 2,013,215 |
| [GENEVA CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/105432) | MILWAUKEE, WI | $152.3M | 1,200,842 |
| [BLAIR WILLIAM & CO/IL](https://search.stillhousedata.com/firm/1252) | Chicago, IL | $134.2M | 1,622,203 |
| [Champlain Investment Partners, LLC](https://search.stillhousedata.com/firm/132474) | BURLINGTON, VT | $132.6M | 1,602,006 |
| Conestoga Capital Advisors, LLC | WAYNE, PA | $128.9M | 1,015,825 |
| Impax Asset Management Group plc | LONDON, X0 | $118.9M | 1,436,288 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $118.1M | 1,426,802 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $114.6M | 1,384,832 |
| Pictet Asset Management Holding SA | CAROUGE, V8 | $112.1M | 883,740 |
| Capital World Investors | LOS ANGELES, CA | $104.6M | 1,264,278 |

## Top fund holders (N-PORT)

_Showing 15 of 45 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $168.8M | 69.71% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $160.8M | 73.84% |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $103.5M | 12.77% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $62.5M | 7.66% |
| [Nationwide Geneva Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000041104) | Nationwide Mutual Funds | $41.2M | 374.58% |
| [Value Line Small Cap Opportunities Fund, Inc.](https://search.stillhousedata.com/fund/S000007569) | Value Line Small Cap Opportunities Fund, Inc. | $17.3M | 221.76% |
| Eaton Vance Enhanced Equity Income Fund II | Eaton Vance Enhanced Equity Income Fund II | $11.7M | 98.63% |
| ROYCE SMALL-CAP TRUST, INC. | ROYCE SMALL-CAP TRUST, INC. | $9.5M | 42.38% |
| [CONESTOGA SMID CAP FUND](https://search.stillhousedata.com/fund/S000043859) | Conestoga Funds | $7.9M | 157.87% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $6.8M | 26.67% |
| [Fidelity Trend Fund](https://search.stillhousedata.com/fund/S000007496) | Fidelity Trend Fund | $5.2M | 12.49% |
| [Copeland SMID Cap Dividend Growth Fund](https://search.stillhousedata.com/fund/S000056507) | Copeland Trust | $3.6M | 259.24% |
| [T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002073) | T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC. | $3.6M | 8.36% |
| [Columbia Variable Portfolio - Small Company Growth Fund](https://search.stillhousedata.com/fund/S000010658) | COLUMBIA FUNDS VARIABLE INSURANCE TRUST | $3.5M | 162.96% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $3.5M | 0.96% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/000360206.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.