William Blair Investment Management
AL

William Blair Investment Management’s Air Lease Corp AL Stock Holding History

William Blair Investment Management’s Portfolio AL Stock Details AL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-139,279
Closed -$8.95M – 415
2025
Q4 		$8.95M Sell
139,279
-209,026
-60% -$13.3M 0.03% 321
2025
Q3 		$22.2M Sell
348,305
-143,506
-29% -$8.57M 0.06% 278
2025
Q2 		$28.8M Sell
491,811
-272,833
-36% -$14.2M 0.08% 224
2025
Q1 		$36.9M Sell
764,644
-34,834
-4% -$1.63M 0.1% 175
2024
Q4 		$38.5M Buy
799,478
+194,189
+32% +$9.16M 0.09% 185
2024
Q3 		$27.4M Buy
+605,289
New +$27.6M 0.07% 258

Other funds holding AL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
OCAI
O'Connor Alternative Investments New York $1.37B AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

William Blair Investment Management's AL Position: Q1 2026 in Review

William Blair Investment Management sold out of Air Lease Corp (AL) in Q1 2026, closing a stake of 139,279 shares — an estimated $8.95M sold.

William Blair Investment Management first reported a position in AL in Q3 2024 and held it in 6 quarters. The position peaked at $38.5M in Q4 2024. 434 funds tracked by Wall St. Rank hold AL as of Q1 2026.

  • William Blair Investment Management reported no remaining Air Lease Corp position as of Q1 2026 after selling out during the quarter.
  • William Blair Investment Management sold 139,279 Air Lease Corp shares in Q1 2026, an estimated $8.95M.
  • William Blair Investment Management first reported a position in Air Lease Corp in Q3 2024 and held it in 6 quarters.
  • William Blair Investment Management's Air Lease Corp position peaked at $38.5M in Q4 2024.
  • 434 funds tracked by Wall St. Rank held Air Lease Corp as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.