William Blair & Company
AAON icon

William Blair & Company’s Aaon AAON Stock Holding History

William Blair & Company’s Portfolio AAON Stock Details AAON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$195M Sell
1,533,434
-88,769
-5% -$10.4M 0.51% 47
2026
Q1 		$134M Sell
1,622,203
-56,822
-3% -$5.16M 0.38% 60
2025
Q4 		$128M Sell
1,679,025
-140,267
-8% -$13M 0.34% 68
2025
Q3 		$170M Sell
1,819,292
-460,778
-20% -$37.7M 0.45% 56
2025
Q2 		$168M Buy
2,280,070
+102,382
+5% +$8.97M 0.47% 59
2025
Q1 		$170M Buy
2,177,688
+1,007,906
+86% +$104M 0.51% 51
2024
Q4 		$138M Buy
1,169,782
+47,254
+4% +$5.79M 0.4% 61
2024
Q3 		$121M Buy
1,122,528
+607,465
+118% +$55.5M 0.36% 67
2024
Q2 		$44.9M Buy
+515,063
New +$42M 0.14% 131

Other funds holding AAON

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
GCM
Geneva Capital Management Milwaukee, Wisconsin $4.36B AUM 17.81% 1-Year Est. Return

William Blair & Company's AAON Position: Q2 2026 in Review

William Blair & Company reduced its Aaon (AAON) stake by 5.5% in Q2 2026, selling an estimated $10.4M and leaving 1,533,434 shares worth $195M. The position accounts for 0.51% of the portfolio, ranked #47.

William Blair & Company first reported a position in AAON in Q2 2024 and has held it in 9 quarters since. 473 funds tracked by Wall St. Rank hold AAON as of Q2 2026.

  • William Blair & Company held 1,533,434 shares of Aaon worth $195M as of Q2 2026.
  • William Blair & Company sold 88,769 Aaon shares in Q2 2026, an estimated $10.4M.
  • Aaon made up 0.51% of William Blair & Company's portfolio in Q2 2026, its #47 holding.
  • William Blair & Company first reported a position in Aaon in Q2 2024 and has held it in 9 quarters since.
  • 473 funds tracked by Wall St. Rank held Aaon as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.