Acuity Inc.
US ˙ NYSE ˙ US00508Y1029

SecurityAYI / Acuity Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership635,160 shares
Latest Disclosed Value $ 177,969,723
Dimensional Fund Advisors Lp reports 8.15% increase in ownership of AYI / Acuity Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 635,160 shares of Acuity Inc. (US:AYI) valued at $177,984,535 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 587,280 shares of Acuity Inc.. This represents a change in shares of 8.15% during the quarter. The current value of the position is $191,843,726 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F ACUITY COM 00508Y102 635,160 47,880 8.15 177,970 -15.84 0.0370
2026-02-12 2025-12-31 13F ACUITY COM 00508Y102 587,280 -9,303 -1.56 211,455 2.93 0.0444
2025-11-12 2025-09-30 13F ACUITY COM 00508Y102 596,583 -1,958 -0.33 205,441 15.04 0.0441
2025-08-12 2025-06-30 13F ACUITY COM 00508Y102 598,541 14,191 2.43 178,585 16.06 0.0413
2025-05-13 2025-03-31 13F ACUITY COM 00508Y102 584,350 -21,154 -3.49 153,878 -13.01 0.0382
2025-02-13 2024-12-31 13F ACUITY BRANDS COM 00508Y102 605,504 -23,390 -3.72 176,893 2.14 0.0425
2024-11-07 2024-09-30 13F ACUITY BRANDS COM 00508Y102 628,894 -999 -0.16 173,179 13.87 0.0420
2024-08-09 2024-06-30 13F ACUITY BRANDS COM 00508Y102 629,893 20,832 3.42 152,085 -7.08 0.0397
2024-05-10 2024-03-31 13F ACUITY BRANDS COM 00508Y102 609,061 -16,016 -2.56 163,673 27.83 0.0443
2024-02-07 2023-12-31 13F ACUITY BRANDS COM 00508Y102 625,077 36,488 6.20 128,035 27.72 0.0374
2023-11-09 2023-09-30 13F ACUITY BRANDS COM 00508Y102 588,589 32,218 5.79 100,244 10.48 0.0329
2023-08-09 2023-06-30 13F ACUITY BRANDS COM 00508Y102 556,371 11,267 2.07 90,733 -8.90 0.0289
2023-05-12 2023-03-31 13F ACUITY BRANDS COM 00508Y102 545,104 -5,139 -0.93 99,602 109,352.75 0.0336
2023-02-09 2022-12-31 13F ACUITY BRANDS COM 00508Y102 550,243 -53,763 -8.90 91 -99.90 0.0269
2022-11-10 2022-09-30 13F ACUITY BRANDS COM 00508Y102 604,006 49,805 8.99 95,109 11.41 0.0365
2022-08-12 2022-06-30 13F ACUITY BRANDS COM 00508Y102 554,201 23,634 4.45 85,368 -15.01 0.0306
2022-05-13 2022-03-31 13F ACUITY BRANDS COM 00508Y102 530,567 20,609 4.04 100,445 -6.97 0.0309
2022-02-09 2021-12-31 13F ACUITY BRANDS COM 00508Y102 509,958 -73,776 -12.64 107,967 6.68 0.0326
2021-11-12 2021-09-30 13F ACUITY BRANDS COM 00508Y102 583,734 -1,335 -0.23 101,211 -7.51 0.0326
2021-08-12 2021-06-30 13F ACUITY BRANDS COM 00508Y102 585,069 -98,416 -14.40 109,428 -2.93 0.0346
2021-05-14 2021-03-31 13F ACUITY BRANDS COM 00508Y102 683,485 24,596 3.73 112,729 41.29 0.0373
2021-03-08 2020-12-31 13F/A-2 ACUITY BRANDS COM 00508Y102 658,889 51,150 8.42 79,784 28.28 0.0288
2021-02-11 2020-12-31 13F ACUITY BRANDS COM 00508Y102 658,889 51,150 79,784 28,813.7400
2020-11-12 2020-09-30 13F ACUITY BRANDS COM 00508Y102 607,739 7,467 1.24 62,197 8.26 0.0264
2020-08-13 2020-06-30 13F ACUITY BRANDS COM 00508Y102 600,272 175,394 41.28 57,451 57.86 0.0253
2020-05-14 2020-03-31 13F ACUITY BRANDS COM 00508Y102 424,878 -13,304 -3.04 36,394 -39.81 0.0190
2020-02-14 2019-12-31 13F ACUITY BRANDS COM 00508Y102 438,182 -1,066 -0.24 60,469 2.14 0.0220
2019-11-12 2019-09-30 13F ACUITY BRANDS COM 00508Y102 439,248 2,915 0.67 59,202 -1.61 0.0230
2019-08-13 2019-06-30 13F ACUITY BRANDS COM 00508Y102 436,333 8,626 2.02 60,169 17.22 0.0234
2019-08-12 2019-03-31 13F/A-2 ACUITY BRANDS COM 00508Y102 427,707 26,052 6.49 51,329 11.17 0.0204
2019-05-10 2019-03-31 13F ACUITY BRANDS COM 00508Y102 427,707 26,052 51,329
2019-02-26 2018-12-31 13F/A-1 ACUITY BRANDS COM 00508Y102 401,655 119,548 42.38 46,170 4.11 0.0209
2019-02-13 2018-12-31 13F ACUITY BRANDS COM 00508Y102 401,655 119,548 46,170
2018-11-13 2018-09-30 13F ACUITY BRANDS COM 00508Y102 282,107 55,273 24.37 44,349 68.74 0.0169
2018-08-10 2018-06-30 13F ACUITY BRANDS COM 00508Y102 226,834 779 0.34 26,283 -16.47 0.0105
2018-05-11 2018-03-31 13F ACUITY BRANDS COM 00508Y102 226,055 8,571 3.94 31,465 -17.81 0.0131
2018-02-12 2017-12-31 13F ACUITY BRANDS COM 00508Y102 217,484 35,927 19.79 38,281 23.12 0.0159
2017-11-13 2017-09-30 13F ACUITY BRANDS COM 00508Y102 181,557 20,378 12.64 31,093 -5.09 0.0136
2017-08-11 2017-06-30 13F ACUITY BRANDS COM 00508Y102 161,179 -2,446 -1.49 32,761 -1.86 0.0151
2017-05-12 2017-03-31 13F ACUITY BRANDS COM 00508Y102 163,625 904 0.56 33,381 -11.15 0.0160
2017-02-09 2016-12-31 13F ACUITY BRANDS COM 00508Y102 162,721 3,115 1.95 37,568 -11.04 0.0188
2016-11-10 2016-09-30 13F ACUITY BRANDS COM 00508Y102 159,606 942 0.59 42,229 7.34 0.0228
2016-08-09 2016-06-30 13F ACUITY BRANDS COM 00508Y102 158,664 12,697 8.70 39,342 23.56 0.0226
2016-05-13 2016-03-31 13F ACUITY BRANDS COM 00508Y102 145,967 -519 -0.35 31,840 -7.04 0.0191
2016-02-10 2015-12-31 13F ACUITY BRANDS COM 00508Y102 146,486 2,699 1.88 34,250 35.68 0.0213
2015-11-13 2015-09-30 13F ACUITY BRANDS COM 00508Y102 143,787 1,734 1.22 25,243 -1.27 0.0166
2015-08-14 2015-06-30 13F ACUITY BRANDS COM 00508Y102 142,053 5,164 3.77 25,567 11.05 0.0157
2015-05-14 2015-03-31 13F ACUITY BRANDS COM 00508Y102 136,889 65 0.05 23,022 20.12 0.0145
2015-02-06 2014-12-31 13F ACUITY BRANDS COM 00508Y102 136,824 -1,084 -0.79 19,166 18.05 0.0126
2014-11-13 2014-09-30 13F ACUITY BRANDS COM 00508Y102 137,908 993 0.73 16,236 -14.21 0.0115
2014-08-08 2014-06-30 13F ACUITY BRANDS COM 00508Y102 136,915 556 0.41 18,926 4.72 0.0132
2014-05-14 2014-03-31 13F ACUITY BRANDS COM 00508Y102 136,359 -667 -0.49 18,073 20.65 0.0135
2014-02-12 2013-12-31 13F ACUITY BRANDS COM 00508Y102 137,026 -315 -0.23 14,980 18.55 0.0117
2013-11-13 2013-09-30 13F ACUITY BRANDS COM 00508Y102 137,341 5,106 3.86 12,636 26.52 0.0109
2013-08-15 2013-06-30 13F ACUITY BRANDS COM 00508Y102 132,235 132,235 9,987 0.0094
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.