William Blair & Company
AER icon

William Blair & Company’s AerCap AER Stock Holding History

William Blair & Company’s Portfolio AER Stock Details AER Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$898K Sell
6,159
-186
-3% -$26.4K ﹤0.01% 1018
2026
Q1 		$870K Sell
6,345
-995
-14% -$142K ﹤0.01% 980
2025
Q4 		$1.06M Buy
7,340
+803
+12% +$106K ﹤0.01% 925
2025
Q3 		$791K Buy
6,537
+203
+3% +$23.7K ﹤0.01% 978
2025
Q2 		$741K Buy
6,334
+45
+0.7% +$4.87K ﹤0.01% 977
2025
Q1 		$643K Buy
6,289
+1,500
+31% +$148K ﹤0.01% 1016
2024
Q4 		$458K Sell
4,789
-207
-4% -$19.9K ﹤0.01% 1126
2024
Q3 		$473K Hold
4,996
– – ﹤0.01% 1131
2024
Q2 		$466K Buy
4,996
+1,009
+25% +$89.9K ﹤0.01% 1117
2024
Q1 		$347K Sell
3,987
-123
-3% -$9.66K ﹤0.01% 1201
2023
Q4 		$305K Buy
+4,110
New +$271K ﹤0.01% 1239

Other funds holding AER

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75.4B AUM 14.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
DSC
Donald Smith & Co New York $5.65B AUM 47.79% 1-Year Est. Return
5NCM
59 North Capital Management Houston, Texas $4.49B AUM 6.4% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
AIM
ARGA Investment Management Stamford, Connecticut $3.92B AUM 35.93% 1-Year Est. Return

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

William Blair & Company reduced its AerCap (AER) stake by 2.9% in Q2 2026, selling an estimated $26.4K and leaving 6,159 shares worth $898K. The position accounts for ﹤0.01% of the portfolio, ranked #1018.

William Blair & Company first reported a position in AER in Q4 2023 and has held it in 11 quarters since. The position peaked at $1.06M in Q4 2025. 691 funds tracked by Wall St. Rank hold AER as of Q2 2026.

  • William Blair & Company held 6,159 shares of AerCap worth $898K as of Q2 2026.
  • William Blair & Company sold 186 AerCap shares in Q2 2026, an estimated $26.4K.
  • AerCap made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1018 holding.
  • William Blair & Company first reported a position in AerCap in Q4 2023 and has held it in 11 quarters since.
  • William Blair & Company's AerCap position peaked at $1.06M in Q4 2025.
  • 691 funds tracked by Wall St. Rank held AerCap as of Q2 2026.

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