William Blair & Company
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William Blair & Company’s Acuity Brands AYI Stock Holding History

William Blair & Company’s Portfolio AYI Stock Details AYI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2018
Q4 		– Sell
-200
Closed -$31K – 1665
2018
Q3 		$31K Sell
200
-100
-33% -$14.4K ﹤0.01% 1498
2018
Q2 		$35K Buy
+300
New +$36.5K ﹤0.01% 1453
2017
Q3 		– Sell
-900
Closed -$183K – 1373
2017
Q2 		$183K Buy
900
+600
+200% +$106K ﹤0.01% 1361
2017
Q1 		$61K Buy
+300
New +$63.4K ﹤0.01% 1320

Other funds holding AYI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

William Blair & Company's AYI Position: Q1 2026 in Review

William Blair & Company reduced its Acuity Brands (AYI) stake by 3.7% in Q1 2026, selling an estimated $125K and leaving 10,788 shares worth $3.02M. The position accounts for 0.01% of the portfolio, ranked #625.

William Blair & Company first reported a position in AYI in Q4 2014 and has held it in 46 quarters since. The position peaked at $46.2M in Q4 2015. 582 funds tracked by Wall St. Rank hold AYI as of Q1 2026.

  • William Blair & Company held 10,788 shares of Acuity Brands worth $3.02M as of Q1 2026.
  • William Blair & Company sold 410 Acuity Brands shares in Q1 2026, an estimated $125K.
  • Acuity Brands made up 0.01% of William Blair & Company's portfolio in Q1 2026, its #625 holding.
  • William Blair & Company first reported a position in Acuity Brands in Q4 2014 and has held it in 46 quarters since.
  • William Blair & Company's Acuity Brands position peaked at $46.2M in Q4 2015.
  • 582 funds tracked by Wall St. Rank held Acuity Brands as of Q1 2026.

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