William Blair Investment Management
POOL icon

William Blair Investment Management’s Pool Corp POOL Stock Holding History

William Blair Investment Management’s Portfolio POOL Stock Details POOL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-452,273
Closed -$91.5M – 433
2026
Q1 		$91.5M Sell
452,273
-67,563
-13% -$15.9M 0.3% 94
2025
Q4 		$119M Sell
519,836
-35,394
-6% -$9.21M 0.33% 82
2025
Q3 		$172M Sell
555,230
-31,080
-5% -$9.74M 0.45% 58
2025
Q2 		$171M Buy
586,310
+71,373
+14% +$21.6M 0.45% 65
2025
Q1 		$164M Sell
514,937
-38,524
-7% -$13.1M 0.46% 61
2024
Q4 		$189M Sell
553,461
-15,179
-3% -$5.53M 0.46% 66
2024
Q3 		$214M Sell
568,640
-8,012
-1% -$2.77M 0.53% 54
2024
Q2 		$177M Sell
576,652
-71,396
-11% -$25.9M 0.46% 65
2024
Q1 		$261M Sell
648,048
-18,709
-3% -$7.31M 0.68% 34
2023
Q4 		$266M Buy
666,757
+60,079
+10% +$21.1M 0.77% 26
2023
Q3 		$216M Buy
606,678
+59,757
+11% +$21.7M 0.72% 31
2023
Q2 		$205M Buy
546,921
+10,310
+2% +$3.52M 0.66% 39
2023
Q1 		$184M Sell
536,611
-41,773
-7% -$14.8M 0.64% 42
2022
Q4 		$175M Sell
578,384
-32,955
-5% -$10.4M 0.67% 46
2022
Q3 		$195M Buy
611,339
+307,121
+101% +$110M 0.77% 37
2022
Q2 		$107M Buy
+304,218
New +$121M 0.4% 91

Other funds holding POOL

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
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $32.2B AUM 10.98% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

William Blair Investment Management's POOL Position: Q2 2026 in Review

William Blair Investment Management sold out of Pool Corp (POOL) in Q2 2026, closing a stake of 452,273 shares — an estimated $91.5M sold.

William Blair Investment Management first reported a position in POOL in Q2 2022 and held it in 16 quarters. The position peaked at $266M in Q4 2023. 613 funds tracked by Wall St. Rank hold POOL as of Q2 2026.

  • William Blair Investment Management reported no remaining Pool Corp position as of Q2 2026 after selling out during the quarter.
  • William Blair Investment Management sold 452,273 Pool Corp shares in Q2 2026, an estimated $91.5M.
  • William Blair Investment Management first reported a position in Pool Corp in Q2 2022 and held it in 16 quarters.
  • William Blair Investment Management's Pool Corp position peaked at $266M in Q4 2023.
  • 613 funds tracked by Wall St. Rank held Pool Corp as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.