Ticker · CUSIP 00508Y102

AYI

ACUITY BRANDS INC
Industrials·Electrical Equipment & Parts
···Share
Holders (tracked)
16
Combined shares
3,108,724
Combined value
$1.12B
Last close
$292.63
Quarter
2025Q4
Price · 1Y$292.63+64.16 (+28.08%)H $376.18 · L $228.24 · Avg Vol 340K
Insider buy
$250.00$300.00$350.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
16162024Q12025Q4
Price is -18.7% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

29 events
  1. O'Shaughnessy Laura
    2026-04-08
    Bought $283.0K @ $282.98
    Insider buy
  2. Wellington Management trimmed2026-02-17
    −107,660 shares · 2025Q4
    Position
  3. Ken Griffin (Citadel Advisors) added2026-02-17
    +47,027 shares · 2025Q4
    Position
  4. AQR Capital Management added2026-02-17
    +29,355 shares · 2025Q4
    Position
  5. D.E. Shaw & Co. added2026-02-17
    +5,883 shares · 2025Q4
    Position
  6. Jeremy Grantham (GMO) opened position2026-02-17
    +9,081 shares · 2025Q4
    Position
  7. Two Sigma Investments added2026-02-17
    +1,291 shares · 2025Q4
    Position
  8. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −83,214 shares · 2025Q4
    Position
  9. Steve Cohen (Point72) added2026-02-17
    +71,388 shares · 2025Q4
    Position
  10. T. Rowe Price added2026-02-17
    +117,153 shares · 2025Q4
    Position
  11. Ray Dalio (Bridgewater Associates) exited2026-02-13
    −18,781 shares · 2025Q4
    Position
  12. Renaissance Technologies trimmed2026-02-12
    −39,900 shares · 2025Q4
    Position
  13. Norges Bank (Norway SWF) opened position2026-02-10
    +385,365 shares · 2025Q4
    Position
  14. Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
    −21,177 shares · 2025Q4
    Position
  15. Mario Gabelli (GAMCO) trimmed2026-02-05
    −365 shares · 2025Q4
    Position
  16. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −28,110 shares · 2025Q3
    Position
  17. AQR Capital Management added2025-11-14
    +42,945 shares · 2025Q3
    Position
  18. Izzy Englander (Millennium Mgmt) added2025-11-14
    +283,203 shares · 2025Q3
    Position
  19. Steve Cohen (Point72) added2025-11-14
    +95,643 shares · 2025Q3
    Position
  20. Two Sigma Investments trimmed2025-11-14
    −4,171 shares · 2025Q3
    Position
  21. D.E. Shaw & Co. trimmed2025-11-14
    −29,807 shares · 2025Q3
    Position
  22. T. Rowe Price added2025-11-14
    +257,766 shares · 2025Q3
    Position
  23. Wellington Management trimmed2025-11-14
    −34,310 shares · 2025Q3
    Position
  24. Renaissance Technologies trimmed2025-11-13
    −15,600 shares · 2025Q3
    Position
  25. Norges Bank (Norway SWF) exited2025-11-13
    −387,460 shares · 2025Q3
    Position
  26. Ray Dalio (Bridgewater Associates) added2025-11-13
    +10,470 shares · 2025Q3
    Position
  27. Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
    −6,685 shares · 2025Q3
    Position
  28. Mario Gabelli (GAMCO) trimmed2025-11-12
    −100 shares · 2025Q3
    Position
  29. Norges Bank (Norway SWF) added2025-11-12
    +4,016 shares · 2024Q3
    Position

Insider activity

Last 30 days
Net (open-market)
$283.0K
Buys
1 · $283.0K
Sells
0 · $0
Unique insiders
1
DateInsiderCodeSharesPriceValue
04-08O'Shaughnessy Laura
Director
P1,000$282.98$283.0K
View full insider history for AYI →
Follow-the-investor returns
If you'd copied each holder of AYI…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Mario Gabelli (GAMCO)2016Q1$195.85+49.4%$616K
Wellington Management2016Q1$205.98+42.1%$230.6M
Ken Fisher (Fisher Asset Mgmt)2017Q4$229.72+27.4%$98.9M
AQR Capital Management2016Q1$243.20+20.3%$95.6M
D.E. Shaw & Co.2016Q2$247.73+18.1%$9.9M
Two Sigma Investments2016Q1$269.82+8.5%$2.4M
Tom Gayner (Markel Group)2024Q4$272.21+7.5%$2.9M
Renaissance Technologies2016Q2$282.49+3.6%$2.7M
Izzy Englander (Millennium Mgmt)2016Q2$320.37-8.7%$142.7M
Jeremy Grantham (GMO)2020Q3$320.95-8.8%$2.7M
Steve Cohen (Point72)2016Q4$335.43-12.8%$69.2M
T. Rowe Price2016Q1$335.76-12.8%$123.0M
Ken Griffin (Citadel Advisors)2016Q1$359.46-18.6%$1.2M
Ken Griffin (Citadel Advisors)2016Q1$359.46-18.6%$1.2M
Ken Griffin (Citadel Advisors)2016Q1$359.46-18.6%$1.2M
Norges Bank (Norway SWF)2016Q1$32064.05-99.1%$112.8M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions2
Added to6
Trimmed5
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$107.84B
2022Q2
13
$66.38B
2022Q3
16
$868.0M
2022Q4
17
$870.0M
2023Q1
17
$950.8M
2023Q2
19
$910.9M
2023Q3
16
$802.3M
2023Q4
14
$884.2M
2024Q1
16
$1.43B
2024Q2
17
$1.47B
2024Q3
15
$719.6M
2024Q4
17
$393.6M
2025Q1
16
$546.0M
2025Q2
17
$799.0M
2025Q3
15
$940.2M
2025Q4
16
$1.12B

Who owns AYI

16 super-investors · 2025Q4
Tracked stake
3.11M
shares
Combined value
$1.12B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added8Trim5Held1
#ManagerSharesValue
1Wellington Management788.0K$284M
2Izzy Englander
Millennium Mgmt
487.8K$176M
3T. Rowe Price420.4K$151M
4Norges Bank
Norway SWF
385.4K$139M
5Ken Fisher
Fisher Asset Mgmt
338.1K$122M
6AQR Capital Management326.8K$118M
7Steve Cohen
Point72
236.6K$85M
8Ken Griffin
Citadel Advisors
48.8K$18M
9D.E. Shaw & Co.33.9K$12M
10Tom Gayner
Markel Group
9.8K$4M
11Renaissance Technologies9.1K$3M
12Jeremy Grantham
GMO
9.1K$3M
13Two Sigma Investments8.2K$3M
14Ken Griffin
Citadel Advisors
4.2K$2M
15Mario Gabelli
GAMCO
2.1K$758K
16Ken Griffin
Citadel Advisors
600$216K

Recent moves

20 transactions
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