Acuity Inc.
US ˙ NYSE ˙ US00508Y1029

SecurityAYI / Acuity Inc.
InstitutionMan Group plc
Latest Disclosed Ownership111,186 shares
Latest Disclosed Value $ 31,156,541
Man Group plc reports 149.87% increase in ownership of AYI / Acuity Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 111,186 shares of Acuity Inc. (US:AYI) valued at $31,156,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 44,498 shares of Acuity Inc.. This represents a change in shares of 149.87% during the quarter. The current value of the position is $34,783,428 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)
2026-05-15 2026-03-31 13F ACUITY COM 00508Y102 111,186 66,688 149.87 31,157 94.47 0.0565
2026-02-17 2025-12-31 13F ACUITY COM 00508Y102 44,498 19,610 78.79 16,021 86.92 0.0272
2025-11-14 2025-09-30 13F ACUITY COM 00508Y102 24,888 -4,488 -15.28 8,571 -2.20 0.0149
2025-08-14 2025-06-30 13F ACUITY COM 00508Y102 29,376 -29,152 -49.81 8,764 -43.14 0.0167
2025-05-15 2025-03-31 13F ACUITY COM 00508Y102 58,528 -6,575 -10.10 15,413 -18.96 0.0391
2025-02-14 2024-12-31 13F ACUITY BRANDS COM 00508Y102 65,103 3,111 5.02 19,019 11.41 0.0500
2024-11-14 2024-09-30 13F ACUITY BRANDS COM 00508Y102 61,992 -39,619 -38.99 17,072 -30.41 0.0445
2024-08-14 2024-06-30 13F ACUITY BRANDS COM 00508Y102 101,611 22,772 28.88 24,533 15.79 0.0620
2024-05-15 2024-03-31 13F ACUITY BRANDS COM 00508Y102 78,839 988 1.27 21,186 32.86 0.0534
2024-02-14 2023-12-31 13F ACUITY BRANDS COM 00508Y102 77,851 15,946 32.67 0.0444
2023-11-14 2023-09-30 13F ACUITY BRANDS COM 00508Y102 12,020 189.82 0.0372
2023-08-14 2023-06-30 13F ACUITY BRANDS COM 00508Y102 25,435 4,148 -63.64 0.0128
2023-05-15 2023-03-31 13F ACUITY BRANDS COM 00508Y102 11,405 52.27 0.0406
2023-02-14 2022-12-31 13F ACUITY BRANDS COM 00508Y102 45,228 43,672 2,806.68 7,490 2,957.14 0.0269
2022-11-14 2022-09-30 13F ACUITY BRANDS COM 00508Y102 1,556 1,556 245 0.0011
2022-08-15 2022-06-30 13F ACUITY BRANDS COM 00508Y102 0 -2,789 -100.00 0 -100.00
2022-05-16 2022-03-31 13F ACUITY BRANDS COM 00508Y102 2,789 2,789 528 0.0018
2022-02-14 2021-12-31 13F ACUITY BRANDS COM 00508Y102 0 -1,265 -100.00 0 -100.00
2021-11-15 2021-09-30 13F ACUITY BRANDS COM 00508Y102 1,265 -13,174 -91.24 219 -91.89 0.0008
2021-08-16 2021-06-30 13F ACUITY BRANDS COM 00508Y102 14,439 11,921 473.43 2,700 550.60 0.0095
2021-05-17 2021-03-31 13F ACUITY BRANDS COM 00508Y102 2,518 -56 -2.18 415 33.44 0.0018
2021-02-16 2020-12-31 13F ACUITY BRANDS COM 00508Y102 2,574 -2,426 -48.52 311 -39.26 0.0014
2020-11-16 2020-09-30 13F ACUITY BRANDS COM 00508Y102 5,000 1,200 31.58 512 40.66 0.0020
2020-08-14 2020-06-30 13F ACUITY BRANDS COM 00508Y102 3,800 -9,500 -71.43 364 -68.04 0.0018
2020-05-15 2020-03-31 13F ACUITY BRANDS COM 00508Y102 13,300 -113,577 -89.52 1,139 -93.49 0.0074
2020-02-18 2019-12-31 13F ACUITY BRANDS COM 00508Y102 126,877 100,593 382.72 17,509 394.19 0.0576
2019-11-14 2019-09-30 13F ACUITY BRANDS COM 00508Y102 26,284 6,358 31.91 3,543 28.98 0.0132
2019-08-14 2019-06-30 13F ACUITY BRANDS COM 00508Y102 19,926 5,570 38.80 2,747 59.43 0.0099
2019-05-15 2019-03-31 13F ACUITY BRANDS COM 00508Y102 14,356 4,856 51.12 1,723 57.78 0.0065
2019-02-14 2018-12-31 13F ACUITY BRANDS COM 00508Y102 9,500 -94,743 -90.89 1,092 -93.34 0.0049
2018-11-14 2018-09-30 13F ACUITY BRANDS COM 00508Y102 104,243 87,396 518.76 16,388 739.55 0.0599
2018-08-14 2018-06-30 13F ACUITY BRANDS COM 00508Y102 16,847 10,096 149.55 1,952 107.66 0.0080
2018-05-15 2018-03-31 13F ACUITY BRANDS COM 00508Y102 6,751 6,751 940 0.0043
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.