Who owns Acuity Brands (AYI)
Which tracked institutional funds hold AYI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AYI company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
274 tracked funds added or opened AYI while 94 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
AYI’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AYI divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 593 tracked filers holding AYI, 323 increased or opened the position and 271 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in AYI between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 30
- Trexquant Investment LP$21M
- CAPITAL FUND MANAGEMENT S.A.$11M
- Montanaro Asset Management Ltd$11M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$7M
- VIRGINIA RETIREMENT SYSTEMS ET Al$7M
- HIGHLAND CAPITAL MANAGEMENT, LLC$6M
Full exits 55
- T. Rowe Price Investment Management, Inc.$194M
- ACADIAN ASSET MANAGEMENT LLC$163M
- Alua Capital Management LP$63M
- Thrivent Financial for Lutherans$47M
- COOKE & BIELER LP$33M
- JACOBS LEVY EQUITY MANAGEMENT, INC$19M
Largest adds
- FMR LLC$698M
- BlackRock, Inc.$387M
- AQR CAPITAL MANAGEMENT LLC$351M
- VANGUARD PORTFOLIO MANAGEMENT LLC$145M
- FULLER & THALER ASSET MANAGEMENT, INC.$137M
- UBS Group AG$131M
Largest trims
- Durable Capital Partners LP$74M
- Alyeska Investment Group, L.P.$44M
- Clark Capital Management Group, Inc.$37M
- BARCLAYS PLC$32M
- TWO SIGMA INVESTMENTS, LP$24M
- Qube Research & Technologies Ltd$20M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FMR LLC added | 3,604,071 | $1.4B | 13.3% | 2026-Q2 |
| BlackRock, Inc. added | 2,978,769 | $1.1B | 11.0% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,436,715 | $541M | 5.3% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 1,369,435 | $516M | 5.0% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,274,516 | $471M | 4.6% | 2026-Q2 |
| STATE STREET CORP added | 966,017 | $364M | 3.6% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 772,130 | $291M | 2.8% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 768,419 | $289M | 2.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 766,536 | $289M | 2.8% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 743,411 | $280M | 2.7% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 713,050 | $263M | 2.6% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 658,213 | $248M | 2.4% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 541,457 | $204M | 2.0% | 2026-Q2 |
| Boston Partners trimmed | 535,556 | $202M | 2.0% | 2026-Q2 |
| UBS Group AG added | 515,771 | $194M | 1.9% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 434,229 | $164M | 1.6% | 2026-Q2 |
| FIL Ltd trimmed | 423,762 | $160M | 1.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 382,232 | $144M | 1.4% | 2026-Q2 |
| MORGAN STANLEY added | 363,273 | $137M | 1.3% | 2026-Q2 |
| ALLEN OPERATIONS LLC | 344,100 | $130M | 1.3% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 325,619 | $123M | 1.2% | 2026-Q2 |
| NORGES BANK trimmed | 316,972 | $119M | 1.2% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 294,385 | $111M | 1.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 281,470 | $106M | 1.0% | 2026-Q2 |
| Allianz Asset Management GmbH trimmed | 275,973 | $104M | 1.0% | 2026-Q2 |
| Boston Trust Walden Corp added | 270,642 | $102M | 1.0% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 259,219 | $98M | 1.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 244,768 | $92M | 0.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 219,839 | $83M | 0.8% | 2026-Q2 |
| EARNEST PARTNERS LLC trimmed | 211,164 | $80M | 0.8% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 207,903 | $78M | 0.8% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 204,992 | $77M | 0.8% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 197,579 | $74M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 190,751 | $72M | 0.7% | 2026-Q2 |
| Greenstone Partners & Co., LLC | 179,710 | $68M | 0.7% | 2026-Q2 |
| SEIZERT CAPITAL PARTNERS, LLC trimmed | 148,732 | $56M | 0.5% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 136,404 | $51M | 0.5% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD | 136,123 | $51M | 0.5% | 2026-Q2 |
| STOREBRAND ASSET MANAGEMENT AS added | 124,921 | $47M | 0.5% | 2026-Q2 |
| Quantinno Capital Management LP added | 122,904 | $46M | 0.5% | 2026-Q2 |
| Gotham Asset Management, LLC added | 122,627 | $46M | 0.5% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 106,304 | $40M | 0.4% | 2026-Q2 |
| Invesco Ltd. added | 104,033 | $39M | 0.4% | 2026-Q2 |
| Alyeska Investment Group, L.P. trimmed | 102,608 | $39M | 0.4% | 2026-Q2 |
| ASR Vermogensbeheer N.V. added | 100,996 | $38M | 0.4% | 2026-Q2 |
| Triodos Investment Management BV | 93,000 | $35M | 0.3% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 89,151 | $34M | 0.3% | 2026-Q2 |
| Arbejdsmarkedets Tillaegspension trimmed | 88,400 | $33M | 0.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 87,845 | $33M | 0.3% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS trimmed | 84,951 | $32M | 0.3% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 81,452 | $31M | 0.3% | 2026-Q2 |
| Robeco Institutional Asset Management B.V. trimmed | 80,349 | $30M | 0.3% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 79,477 | $30M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 77,919 | $29M | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 76,371 | $29M | 0.3% | 2026-Q2 |
| California Public Employees Retirement System added | 75,101 | $28M | 0.3% | 2026-Q2 |
| ASHFORD CAPITAL MANAGEMENT INC added | 73,959 | $28M | 0.3% | 2026-Q2 |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC trimmed | 72,688 | $27M | 0.3% | 2026-Q2 |
| Durable Capital Partners LP trimmed | 68,646 | $26M | 0.3% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 68,370 | $26M | 0.3% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 64,391 | $24M | 0.2% | 2026-Q2 |
| Copeland Capital Management, LLC added | 60,802 | $23M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 57,800 | $22M | 0.2% | 2026-Q2 |
| Trexquant Investment LP added | 55,969 | $21M | 0.2% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP added | 52,711 | $20M | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 51,643 | $14M | 0.1% | 2026-Q2 |
| Nuveen, LLC trimmed | 48,935 | $18M | 0.2% | 2026-Q2 |
| Man Group plc trimmed | 47,329 | $18M | 0.2% | 2026-Q2 |
| Creative Planning added | 46,960 | $18M | 0.2% | 2026-Q2 |
| Lightrock Netherlands B.V. added | 46,803 | $18M | 0.2% | 2026-Q2 |
| Mariner, LLC added | 46,459 | $17M | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 45,481 | $17M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 45,233 | $17M | 0.2% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC added | 42,944 | $16M | 0.2% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 40,362 | $15M | 0.1% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 39,702 | $15M | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 39,591 | $15M | 0.1% | 2026-Q2 |
| ALTRINSIC GLOBAL ADVISORS LLC trimmed | 39,540 | $15M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 38,332 | $14M | 0.1% | 2026-Q2 |
| Swedbank AB | 37,604 | $14M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 37,600 | $14M | 0.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 36,553 | $14M | 0.1% | 2026-Q2 |
| Distillate Capital Partners LLC trimmed | 35,572 | $13M | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 34,957 | $13M | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 34,322 | $13M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 33,386 | $13M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 31,147 | $12M | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 30,757 | $12M | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 30,140 | $11M | 0.1% | 2026-Q2 |
| Illinois Municipal Retirement Fund added | 29,942 | $11M | 0.1% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 29,869 | $11M | 0.1% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 29,603 | $11M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 29,260 | $11M | 0.1% | 2026-Q2 |
| Montanaro Asset Management Ltd new | 28,950 | $11M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 28,673 | $11M | 0.1% | 2026-Q2 |
| Cerity Partners LLC added | 28,573 | $11M | 0.1% | 2026-Q2 |
| Holocene Advisors, LP added | 27,265 | $10M | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P trimmed | 27,051 | $10M | 0.1% | 2026-Q2 |
| KLP KAPITALFORVALTNING AS added | 25,860 | $10M | 0.1% | 2026-Q2 |
| ABN AMRO Bank N.V. trimmed | 25,807 | $10M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.