ACUITY BRANDS INC (AYI) Institutional Shareholders
ACUITY BRANDS INC (AYI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $11.43B in AYI holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of AYI tracked by InsiderSet, reporting ownership valued at approximately $1.36B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.09B, representing an estimated loss of -19.57% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed AYI value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in ACUITY BRANDS INC (AYI).
This page ranks the largest institutional AYI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
619
Total Reported Value
$11.43B
Largest Holder
Fmr Llc
Largest Position
$1.36B
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
74
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.06% | 3,604,071 | $1,357,509,193 | $1,091,889,350 | -$265,619,843 | -19.57% | |
| Blackrock, Inc. | 0.02% | 2,978,769 | $1,121,983,364 | $902,447,856 | -$219,535,508 | -19.57% | |
| Vanguard Portfolio Management Llc | 0.02% | 1,436,715 | $541,153,072 | $435,267,176 | -$105,885,896 | -19.57% | |
| Vanguard Capital Management Llc | 0.01% | 1,369,435 | $515,811,387 | $414,884,028 | -$100,927,359 | -19.57% | |
| Aqr Capital Management Llc | 0.16% | 1,274,516 | $471,010,054 | $386,127,367 | -$84,882,687 | -18.02% | |
| State Street Corp | 0.01% | 966,017 | $363,849,902 | $292,664,510 | -$71,185,392 | -19.56% | |
| Fuller & Thaler Asset Management, Inc. | 0.79% | 772,130 | $290,830,600 | $233,924,505 | -$56,906,095 | -19.57% | |
| Geode Capital Management, Llc | 0.02% | 768,419 | $289,485,217 | $232,800,220 | -$56,684,997 | -19.58% | |
| Dimensional Fund Advisors Lp | 0.05% | 766,536 | $288,700,929 | $232,229,747 | -$56,471,182 | -19.56% | |
| American Century Companies Inc | 0.12% | 743,411 | $280,013,188 | $225,223,797 | -$54,789,391 | -19.57% | |
| Jpmorgan Chase & Co | 0.02% | 713,050 | $262,651,132 | $216,025,628 | -$46,625,504 | -17.75% | |
| Wellington Management Group Llp | 0.04% | 658,213 | $247,922,507 | $199,412,210 | -$48,510,297 | -19.57% | |
| Banque Cantonale Vaudoise | 0.03% | 553 | $208,000,000 | $167,537 | -$207,832,463 | -99.92% | |
| Price T Rowe Associates Inc | 0.02% | 541,457 | $203,946,000 | $164,039,813 | -$39,906,187 | -19.57% | |
| Boston Partners | 0.18% | 535,556 | $201,607,163 | $162,252,046 | -$39,355,117 | -19.52% | |
| Ubs Group Ag | 0.03% | 515,771 | $194,270,305 | $156,257,982 | -$38,012,323 | -19.57% | |
| First Trust Advisors Lp | 0.10% | 434,229 | $163,556,248 | $131,554,018 | -$32,002,230 | -19.57% | |
| Fil Ltd | 0.11% | 423,762 | $159,614,195 | $128,382,936 | -$31,231,259 | -19.57% | |
| Goldman Sachs Group Inc | 0.02% | 382,232 | $143,971,616 | $115,801,007 | -$28,170,609 | -19.57% | |
| Morgan Stanley | 0.01% | 363,273 | $136,831,617 | $110,057,188 | -$26,774,429 | -19.57% | |
| Allen Operations Llc | 17.96% | 344,100 | $129,608,706 | $104,248,536 | -$25,360,170 | -19.57% | |
| Acadian Asset Management Llc | 0.15% | 335,121 | $126,199,000 | $101,528,258 | -$24,670,742 | -19.55% | |
| Fisher Asset Management, Llc | 0.04% | 325,619 | $122,647,874 | $98,649,532 | -$23,998,342 | -19.57% | |
| Norges Bank | 0.01% | 316,972 | $119,390,674 | $96,029,837 | -$23,360,837 | -19.57% | |
| Northern Trust Corp | 0.01% | 294,385 | $110,883,054 | $89,186,880 | -$21,696,174 | -19.57% | |
| Bank Of America Corp | 0.01% | 281,470 | $106,018,491 | $85,274,151 | -$20,744,340 | -19.57% | |
| Allianz Asset Management Gmbh | 0.10% | 275,973 | $103,947,990 | $83,608,780 | -$20,339,210 | -19.57% | |
| Boston Trust Walden Corp | 0.78% | 270,642 | $101,940,016 | $81,993,700 | -$19,946,316 | -19.57% | |
| Arrowstreet Capital, Limited Partnership | 0.04% | 259,219 | $97,637,429 | $78,532,988 | -$19,104,441 | -19.57% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.11% | 244,768 | $92,191,169 | $74,154,913 | -$18,036,256 | -19.56% | |
| Charles Schwab Investment Management Inc | 0.01% | 219,839 | $82,804,558 | $66,602,423 | -$16,202,135 | -19.57% | |
| Earnest Partners Llc | 0.29% | 211,164 | $79,537,032 | $63,974,245 | -$15,562,787 | -19.57% | |
| Bank Of New York Mellon Corp | 0.01% | 204,992 | $77,212,327 | $62,104,376 | -$15,107,951 | -19.57% | |
| D. E. Shaw & Co., Inc. | 0.05% | 197,579 | $74,420,106 | $59,858,534 | -$14,561,572 | -19.57% | |
| Vanguard Fiduciary Trust Co | 0.02% | 190,751 | $71,848,272 | $57,789,923 | -$14,058,349 | -19.57% | |
| Greenstone Partners & Co., Llc | 15.65% | 179,710 | $67,689,569 | $54,444,942 | -$13,244,627 | -19.57% | |
| Thrivent Financial For Lutherans | 0.10% | 163,127 | $61,443,000 | $49,420,956 | -$12,022,044 | -19.57% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 211,501 | $59,266,810 | $64,076,343 | +$4,809,533 | +8.12% | |
| Seizert Capital Partners, Llc | 2.31% | 148,732 | $56,021,395 | $45,059,847 | -$10,961,548 | -19.57% | |
| Voloridge Investment Management, Llc | 0.22% | 136,404 | $51,377,931 | $41,324,956 | -$10,052,975 | -19.57% | |
| Jupiter Asset Management Ltd | 0.25% | 136,123 | $51,272,090 | $41,239,824 | -$10,032,266 | -19.57% | |
| Storebrand Asset Management As | 0.12% | 124,921 | $47,052,744 | $37,846,066 | -$9,206,678 | -19.57% | |
| Quantinno Capital Management Lp | 0.06% | 122,904 | $46,293,182 | $37,234,996 | -$9,058,186 | -19.57% | |
| Gotham Asset Management, Llc | 0.11% | 122,627 | $46,188,686 | $37,151,076 | -$9,037,610 | -19.57% | |
| New York State Common Retirement Fund | 0.05% | 106,304 | $40,040,465 | $32,205,860 | -$7,834,605 | -19.57% | |
| T. Rowe Price Investment Management, Inc. | 0.03% | 104,945 | $39,529,000 | $31,794,137 | -$7,734,863 | -19.57% | |
| Invesco Ltd. | 0.00% | 104,033 | $39,185,069 | $31,517,838 | -$7,667,231 | -19.57% | |
| Alyeska Investment Group, L.P. | 0.10% | 102,608 | $38,648,329 | $31,086,120 | -$7,562,209 | -19.57% | |
| Asr Vermogensbeheer N.V. | 0.39% | 100,996 | $38,039,600 | $30,597,748 | -$7,441,852 | -19.56% | |
| Triodos Investment Management Bv | 2.13% | 93,000 | $35,029,380 | $28,175,280 | -$6,854,100 | -19.57% |
Frequently asked questions about AYI
Who owns the most AYI stock?
The largest holders of AYI are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACUITY BRANDS INC (AYI).
Is AYI widely held by superinvestors?
Many widely followed stocks like AYI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AYI is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.