Mid-America Apartment Communities, Inc.
US ˙ NYSE ˙ US59522J1034

SecurityMAA / Mid-America Apartment Communities, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,746,111 shares
Latest Disclosed Value $ 213,235,076
Northern Trust Corp reports 18.53% decrease in ownership of MAA / Mid-America Apartment Communities, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,746,111 shares of Mid-America Apartment Communities, Inc. (US:MAA) valued at $213,235,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,143,325 shares of Mid-America Apartment Communities, Inc.. This represents a change in shares of -18.53% during the quarter. The current value of the position is $238,990,213 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)
2026-05-14 2026-03-31 13F MID-AMER APT CMNTYS COM 59522J103 1,746,111 -397,214 -18.53 213,235 -28.38 0.0058
2026-02-17 2025-12-31 13F MID-AMER APT CMNTYS COM 59522J103 2,143,325 -1,878 -0.09 297,729 -0.67 0.0078
2025-11-14 2025-09-30 13F MID-AMER APT CMNTYS COM 59522J103 2,145,203 26,221 1.24 299,749 -4.43 0.0087
2025-08-13 2025-06-30 13F MID-AMER APT CMNTYS COM 59522J103 2,118,982 166,204 8.51 313,631 -4.16 0.0431
2025-05-13 2025-03-31 13F MID-AMER APT CMNTYS COM 59522J103 1,952,778 89,370 4.80 327,247 13.62 0.0486
2025-02-14 2024-12-31 13F MID-AMER APT CMNTYS COM 59522J103 1,863,408 465,414 33.29 288,027 29.66 0.0408
2024-11-13 2024-09-30 13F MID-AMER APT CMNTYS COM 59522J103 1,397,994 -36,831 -2.57 222,141 8.56 0.0364
2024-08-14 2024-06-30 13F MID-AMER APT CMNTYS COM 59522J103 1,434,825 -6,325 -0.44 204,620 7.91 0.0345
2024-05-14 2024-03-31 13F MID-AMER APT CMNTYS COM 59522J103 1,441,150 -22,834 -1.56 189,627 -3.67 0.0328
2024-02-13 2023-12-31 13F MID-AMER APT CMNTYS COM 59522J103 1,463,984 -261,804 -15.17 196,847 -11.34 0.0356
2023-11-13 2023-09-30 13F MID-AMER APT CMNTYS COM 59522J103 1,725,788 93,020 5.70 222,023 -10.46 0.0430
2023-08-11 2023-06-30 13F MID-AMER APT CMNTYS COM 59522J103 1,632,768 -126,863 -7.21 247,952 -6.71 0.0476
2023-05-15 2023-03-31 13F MID-AMER APT CMNTYS COM 59522J103 1,759,631 36,060 2.09 265,775 -1.78 0.0527
2023-02-13 2022-12-31 13F MID-AMER APT CMNTYS COM 59522J103 1,723,571 -17,852 -1.03 270,583 0.20 0.0568
2022-11-14 2022-09-30 13F MID-AMER APT CMNTYS COM 59522J103 1,741,423 50,889 3.01 270,043 -8.55 0.0617
2022-08-12 2022-06-30 13F MID-AMER APT CMNTYS COM 59522J103 1,690,534 -209,876 -11.04 295,286 -25.81 0.0632
2022-05-13 2022-03-31 13F MID-AMER APT CMNTYS COM 59522J103 1,900,410 -56,244 -2.87 398,040 -11.34 0.0700
2022-02-08 2021-12-31 13F MID-AMER APT CMNTYS COM 59522J103 1,956,654 -70,514 -3.48 448,935 18.59 0.0735
2021-11-15 2021-09-30 13F MID-AMER APT CMNTYS COM 59522J103 2,027,168 57,314 2.91 378,574 14.11 0.0670
2021-08-13 2021-06-30 13F MID-AMER APT CMNTYS COM 59522J103 1,969,854 -92,719 -4.50 331,763 11.42 0.0584
2021-05-12 2021-03-31 13F MID-AMER APT CMNTYS COM 59522J103 2,062,573 -144,657 -6.55 297,754 6.48 0.0554
2021-02-11 2020-12-31 13F MID-AMER APT CMNTYS COM 59522J103 2,207,230 358,891 19.42 279,634 30.48 0.0545
2020-11-16 2020-09-30 13F MID-AMER APT CMNTYS COM 59522J103 1,848,339 -18,622 -1.00 214,316 0.11 0.0470
2020-08-14 2020-06-30 13F MID-AMER APT CMNTYS COM 59522J103 1,866,961 -11,683 -0.62 214,085 10.61 0.0507
2020-05-14 2020-03-31 13F MID AMER APT CMNTYS COM 59522J103 1,878,644 94,628 5.30 193,557 -17.72 0.0556
2020-02-14 2019-12-31 13F MID AMER APT CMNTYS COM 59522J103 1,784,016 65,048 3.78 235,241 5.26 0.0527
2019-11-13 2019-09-30 13F MID AMER APT CMNTYS COM 59522J103 1,718,968 5,450 0.32 223,483 10.75 0.0535
2019-08-13 2019-06-30 13F MID AMER APT CMNTYS COM 59522J103 1,713,518 89,273 5.50 201,785 13.63 0.0479
2019-05-13 2019-03-31 13F MID AMER APT CMNTYS COM 59522J103 1,624,245 -29,646 -1.79 177,579 12.20 0.0439
2019-02-12 2018-12-31 13F MID AMER APT CMNTYS COM 59522J103 1,653,891 -89,791 -5.15 158,277 -9.39 0.0444
2018-11-14 2018-09-30 13F MID AMER APT CMNTYS COM 59522J103 1,743,682 -99,610 -5.40 174,682 -5.86 0.0428
2018-09-18 2018-06-30 13F/A-1 MID AMER APT CMNTYS COM 59522J103 1,843,292 -37,405 -1.99 185,565 8.14 0.0471
2018-08-14 2018-06-30 13F MID AMER APT CMNTYS COM 59522J103 1,850,690 -30,007 186,310
2018-05-09 2018-03-31 13F MID AMER APT CMNTYS COM 59522J103 1,880,697 46,341 2.53 171,596 -6.98 0.0446
2018-02-14 2017-12-31 13F MID AMER APT CMNTYS COM 59522J103 1,834,356 24,104 1.33 184,463 -4.66 0.0467
2017-11-13 2017-09-30 13F MID AMER APT CMNTYS COM 59522J103 1,810,252 34,422 1.94 193,479 3.39 0.0504
2017-08-11 2017-06-30 13F MID AMER APT CMNTYS COM 59522J103 1,775,830 29,526 1.69 187,136 5.33 0.0523
2017-05-12 2017-03-31 13F MID AMER APT CMNTYS COM 59522J103 1,746,304 43,054 2.53 177,669 6.53 0.0512
2017-02-13 2016-12-31 13F MID AMER APT CMNTYS COM 59522J103 1,703,250 759,996 80.57 166,782 88.12 0.0512
2016-11-09 2016-09-30 13F MID-AMER APT CMNTYS COM 59522J103 943,254 -11,850 -1.24 88,656 -12.76 0.0276
2016-08-12 2016-06-30 13F MID-AMER APT CMNTYS COM 59522J103 955,104 13,900 1.48 101,624 6.07 0.0330
2016-08-19 2016-03-31 13F/A-1 MID-AMER APT CMNTYS COM 59522J103 941,204 103,828 12.40 95,808 25.99 0.0318
2016-05-13 2016-03-31 13F Mid-Amer Apt Cmntys REIT 59522J103 941,204 96,200
2016-02-12 2015-12-31 13F Mid-Amer Apt Cmntys REIT 59522J103 837,376 -23,775 -2.76 76,043 7.86 0.0252
2015-11-12 2015-09-30 13F MID-AMER APT CMNTYS COM 59522J103 861,151 861,151 70,503 0.0235
2015-08-13 2015-06-30 13F Mid-Amer Apt Cmntys REIT 59522J103 0 -908,105 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Mid-Amer Apt Cmntys REIT 59522J103 908,105 65,373 7.76 70,171 11.50 0.0211
2015-02-12 2014-12-31 13F Mid-Amer Apt Cmntys REIT 59522J103 842,732 82,345 10.83 62,935 26.07 0.0190
2014-11-13 2014-09-30 13F MID-AMER APT CMNTYS COM 59522J103 760,387 -235,937 -23.68 49,919 -31.41 0.0157
2014-08-14 2014-06-30 13F MID-AMER APT CMNTYS COM 59522J103 996,324 -3,148 -0.31 72,781 6.66 0.0227
2014-05-14 2014-03-31 13F MID-AMER APT CMNTYS COM 59522J103 999,472 -7,692 -0.76 68,235 11.54 0.0215
2014-02-21 2013-12-31 13F/A-1 MID-AMER APT CMNTYS COM 59522J103 1,007,164 516,806 105.39 61,175 99.61 0.0196
2014-02-12 2013-12-31 13F MID-AMER APT CMNTYS COM 59522J103 1,007,164 61,175
2013-11-13 2013-09-30 13F MID-AMER APT CMNTYS COM 59522J103 490,358 198,954 68.27 30,647 55.19 0.0108
2013-08-09 2013-06-30 13F MID-AMER APT CMNTYS COM 59522J103 291,404 291,404 19,748 0.0072
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.