AYI Institutional Ownership & Shareholders
ACUITY BRANDS INC (AYI) is currently held by 622 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $11.28B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
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 $1.19B, representing an estimated loss of -12.48% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 49% 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
622
Total Reported Value
$11.28B
Largest Holder
Fmr Llc
Largest Position
$1.36B
Insider Transactions (90d)
31
Latest Filing Quarter
Q2 2026
New Institutional Positions
61
Funds Exiting Positions
0
| 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 | $1,188,082,005 | -$169,427,188 | -12.48% | |
| Blackrock, Inc. | 0.02% | 2,978,769 | $1,121,983,364 | $981,951,201 | -$140,032,163 | -12.48% | |
| Vanguard Portfolio Management Llc | 0.02% | 1,436,715 | $541,153,072 | $473,613,100 | -$67,539,972 | -12.48% | |
| Vanguard Capital Management Llc | 0.01% | 1,369,435 | $515,811,387 | $451,434,248 | -$64,377,139 | -12.48% | |
| Aqr Capital Management Llc | 0.16% | 1,274,516 | $471,010,054 | $420,144,199 | -$50,865,855 | -10.80% | |
| State Street Corp | 0.01% | 966,017 | $363,849,902 | $318,447,504 | -$45,402,398 | -12.48% | |
| Fuller & Thaler Asset Management, Inc. | 0.79% | 772,130 | $290,830,600 | $254,532,654 | -$36,297,946 | -12.48% | |
| Geode Capital Management, Llc | 0.02% | 768,419 | $289,485,217 | $253,309,323 | -$36,175,894 | -12.50% | |
| Dimensional Fund Advisors Lp | 0.05% | 766,536 | $288,700,929 | $252,688,592 | -$36,012,337 | -12.47% | |
| American Century Companies Inc | 0.12% | 743,411 | $280,013,188 | $245,065,436 | -$34,947,752 | -12.48% | |
| Jpmorgan Chase & Co | 0.02% | 713,050 | $262,651,132 | $235,056,932 | -$27,594,200 | -10.51% | |
| Wellington Management Group Llp | 0.04% | 658,213 | $247,922,507 | $216,979,915 | -$30,942,592 | -12.48% | |
| Banque Cantonale Vaudoise | 0.03% | 553 | $208,000,000 | $182,296 | -$207,817,704 | -99.91% | |
| Price T Rowe Associates Inc | 0.02% | 541,457 | $203,946,000 | $178,491,300 | -$25,454,700 | -12.48% | |
| Boston Partners | 0.18% | 535,556 | $201,607,163 | $176,546,035 | -$25,061,128 | -12.43% | |
| Ubs Group Ag | 0.03% | 515,771 | $194,270,305 | $170,023,910 | -$24,246,395 | -12.48% | |
| First Trust Advisors Lp | 0.10% | 434,229 | $163,556,248 | $143,143,590 | -$20,412,658 | -12.48% | |
| Fil Ltd | 0.11% | 423,762 | $159,614,195 | $139,693,143 | -$19,921,052 | -12.48% | |
| Goldman Sachs Group Inc | 0.02% | 382,232 | $143,971,616 | $126,002,779 | -$17,968,837 | -12.48% | |
| Morgan Stanley | 0.01% | 363,273 | $136,831,617 | $119,752,944 | -$17,078,673 | -12.48% | |
| Allen Operations Llc | 17.96% | 344,100 | $129,608,706 | $113,432,565 | -$16,176,141 | -12.48% | |
| Acadian Asset Management Llc | 0.15% | 335,121 | $126,199,000 | $110,472,638 | -$15,726,362 | -12.46% | |
| Fisher Asset Management, Llc | 0.04% | 325,619 | $122,647,874 | $107,340,303 | -$15,307,571 | -12.48% | |
| Norges Bank | 0.01% | 316,972 | $119,390,674 | $104,489,820 | -$14,900,854 | -12.48% | |
| Northern Trust Corp | 0.01% | 294,385 | $110,883,054 | $97,044,015 | -$13,839,039 | -12.48% | |
| Bank Of America Corp | 0.01% | 281,470 | $106,018,491 | $92,786,586 | -$13,231,906 | -12.48% | |
| Allianz Asset Management Gmbh | 0.10% | 275,973 | $103,947,990 | $90,974,499 | -$12,973,491 | -12.48% | |
| Arrowstreet Capital, Limited Partnership | 0.04% | 259,219 | $97,637,429 | $85,451,543 | -$12,185,886 | -12.48% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.11% | 244,768 | $92,191,169 | $80,687,771 | -$11,503,398 | -12.48% | |
| Charles Schwab Investment Management Inc | 0.01% | 219,839 | $82,804,558 | $72,469,926 | -$10,334,632 | -12.48% | |
| Boston Trust Walden Corp | 0.65% | 258,611 | $80,120,274 | $85,251,116 | +$5,130,842 | +6.40% | |
| Earnest Partners Llc | 0.29% | 211,164 | $79,537,032 | $69,610,213 | -$9,926,819 | -12.48% | |
| Bank Of New York Mellon Corp | 0.01% | 204,992 | $77,212,327 | $67,575,613 | -$9,636,714 | -12.48% | |
| D. E. Shaw & Co., Inc. | 0.05% | 197,579 | $74,420,106 | $65,131,917 | -$9,288,189 | -12.48% | |
| Vanguard Fiduciary Trust Co | 0.02% | 190,751 | $71,848,272 | $62,881,067 | -$8,967,205 | -12.48% | |
| Greenstone Partners & Co., Llc | 15.65% | 179,710 | $67,689,569 | $59,241,401 | -$8,448,168 | -12.48% | |
| Thrivent Financial For Lutherans | 0.10% | 163,127 | $61,443,000 | $53,774,816 | -$7,668,184 | -12.48% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 211,501 | $59,266,810 | $69,721,305 | +$10,454,495 | +17.64% | |
| Voloridge Investment Management, Llc | 0.22% | 136,404 | $51,377,931 | $44,965,579 | -$6,412,352 | -12.48% | |
| Jupiter Asset Management Ltd | 0.25% | 136,123 | $51,272,090 | $44,872,947 | -$6,399,143 | -12.48% | |
| Storebrand Asset Management As | 0.12% | 124,921 | $47,052,744 | $41,180,208 | -$5,872,536 | -12.48% | |
| Quantinno Capital Management Lp | 0.06% | 122,904 | $46,293,182 | $40,515,304 | -$5,777,878 | -12.48% | |
| Gotham Asset Management, Llc | 0.11% | 122,627 | $46,188,686 | $40,423,991 | -$5,764,695 | -12.48% | |
| Seizert Capital Partners, Llc | 1.86% | 138,584 | $42,934,709 | $45,684,216 | +$2,749,507 | +6.40% | |
| New York State Common Retirement Fund | 0.05% | 106,304 | $40,040,465 | $35,043,114 | -$4,997,351 | -12.48% | |
| T. Rowe Price Investment Management, Inc. | 0.03% | 104,945 | $39,529,000 | $34,595,119 | -$4,933,881 | -12.48% | |
| Invesco Ltd. | 0.00% | 104,033 | $39,185,069 | $34,294,478 | -$4,890,591 | -12.48% | |
| Robeco Institutional Asset Management B.V. | 0.05% | 125,593 | $38,909,968 | $41,401,732 | +$2,491,764 | +6.40% | |
| Alyeska Investment Group, L.P. | 0.10% | 102,608 | $38,648,329 | $33,824,727 | -$4,823,602 | -12.48% | |
| Triodos Investment Management Bv | 2.13% | 93,000 | $35,029,380 | $30,657,450 | -$4,371,930 | -12.48% |
Frequently asked questions about AYI
Who are the largest institutional holders of AYI?
The largest institutional holders of AYI reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and Aqr Capital Management Llc. InsiderSet ranks institutional holders by their latest reported AYI position.
What is AYI institutional ownership?
This page tracks AYI positions reported by institutional investment managers through SEC Form 13F. ACUITY BRANDS INC (AYI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own AYI?
InsiderSet currently tracks 622 institutional managers reporting AYI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of AYI shareholders.
How much AYI stock do institutions own?
Institutional investment managers disclosed approximately $11.28B in AYI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was AYI institutional ownership last updated?
The latest AYI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional AYI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its AYI position after the reporting date.
Are institutions buying or selling AYI?
Institutional buying and selling can be analyzed by comparing AYI positions across consecutive 13F reporting periods. InsiderSet's AYI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AYI ownership changes.
How has AYI institutional ownership changed over time?
InsiderSet tracks AYI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.