Aaon AAON Institutional Ownership

Ownership Summary

Aaon, Inc. (NASDAQ:AAON) appears in 396 institutional 13F filings for the quarter ending March 2026.

• Collectively, these holders controlled 85.6% of Aaon's outstanding shares in March 2026, down from 90.8% in December 2025.
• They increased total shares held in Aaon by 9.74% from the prior quarter, while the number of investors in AAON increased 2.59% year over year.
• During the quarter, 215 of these 396 funds increased positions in AAON, 131 reduced exposure, and 50 held steady.
• The aggregate institutional position in Aaon amounted to 69.78Mn shares as of March 2026, up by 6.2Mn shares quarter on quarter, and up 5.16Mn shares year over year.
• WELLINGTON MANAGEMENT GROUP LLP leads ownership in AAON with 7.98Mn shares as of March 31, 2026, equal to 9.78% of outstanding shares.
• Leading buyers of Aaon shares for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (3.1Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.91Mn), WELLINGTON MANAGEMENT GROUP LLP (1.14Mn), Capital World Investors (683.5K), WASATCH ADVISORS LP (436.7K).
• Top sellers of AAON stock for the quarter ending March 2026 included FMR LLC (534.84K), Ameriprise Financial Inc (512.25K), Conestoga Capital Advisors, LLC (505.78K), Allspring Global Investments Holdings, LLC (443.71K), Morgan Stanley (433.27K).
• Business Quant data shows the 10 biggest positions in Aaon as of March 2026 are held by WELLINGTON MANAGEMENT GROUP LLP (7.98Mn), BlackRock, Inc. (6.56Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.1Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.91Mn), WASATCH ADVISORS LP (2.27Mn), State Street Corp (2.06Mn), FIRST TRUST ADVISORS LP (2.01Mn), GENEVA CAPITAL MANAGEMENT LLC (1.72Mn), BLAIR WILLIAM & CO/IL (1.62Mn), Champlain Investment Partners, LLC (1.6Mn).