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

SecurityMAA / Mid-America Apartment Communities, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership12,810 shares
Latest Disclosed Value $ 1,564,357
First Manhattan Co ownership in MAA / Mid-America Apartment Communities, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 12,810 shares of Mid-America Apartment Communities, Inc. (US:MAA) valued at $1,564,357 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,810 shares of Mid-America Apartment Communities, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,697,837 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 MID-AMER APT CMNTYS COM 59522J103 12,810 0 0.00 1,564 -12.09 0.0043
2026-02-17 2025-12-31 13F MID-AMER APT CMNTYS COM 59522J103 12,810 -233 -1.79 1,779 -2.36 0.0047
2025-11-14 2025-09-30 13F MID-AMER APT CMNTYS COM 59522J103 13,043 3,522 36.99 1,822 29.31 0.0048
2025-08-14 2025-06-30 13F MID-AMER APT CMNTYS COM 59522J103 9,521 -2,050 -17.72 1,409 -27.33 0.0040
2025-05-15 2025-03-31 13F MID-AMER APT CMNTYS COM 59522J103 11,571 0 0.00 1,939 8.45 0.0057
2025-02-14 2024-12-31 13F MID-AMER APT CMNTYS COM 59522J103 11,571 -150 -1.28 1,789 -3.97 0.0052
2024-11-14 2024-09-30 13F MID-AMER APT CMNTYS COM 59522J103 11,721 -1,373 -10.49 1,862 -0.27 0.0055
2024-08-15 2024-06-30 13F/A-1 MID-AMER APT CMNTYS COM 59522J103 13,094 -1,950 -12.96 1,867 -5.66 0.0060
2024-08-14 2024-06-30 13F MID-AMER APT CMNTYS COM 59522J103 13,094 -1,950 1,867 0.0060
2024-05-15 2024-03-31 13F MID-AMER APT CMNTYS COM 59522J103 15,044 1,777 13.39 1,979 10.99 0.0064
2024-02-13 2023-12-31 13F MID-AMER APT CMNTYS COM 59522J103 13,267 -550 -3.98 1,784 0.34 0.0062
2023-11-14 2023-09-30 13F MID-AMER APT CMNTYS COM 59522J103 13,817 -390 -2.75 1,778 -17.62 0.0066
2023-08-14 2023-06-30 13F MID-AMER APT CMNTYS COM 59522J103 14,207 -500 -3.40 2,157 -2.88 0.0079
2023-05-15 2023-03-31 13F MID-AMER APT CMNTYS COM 59522J103 14,707 -4,028 -21.50 2,221 -24.48 0.0085
2023-02-14 2022-12-31 13F MID-AMER APT CMNTYS COM 59522J103 18,735 1,065 6.03 2,941 7.34 0.0108
2022-11-14 2022-09-30 13F MID-AMER APT CMNTYS COM 59522J103 17,670 0 0.00 2,740 -11.21 0.0116
2022-08-15 2022-06-30 13F MID-AMER APT CMNTYS COM 59522J103 17,670 0 0.00 3,086 -16.59 0.0124
2022-05-16 2022-03-31 13F MID-AMER APT CMNTYS COM 59522J103 17,670 -598 -3.27 3,700 -11.72 0.0121
2022-02-14 2021-12-31 13F MID-AMER APT CMNTYS COM 59522J103 18,268 -700 -3.69 4,191 18.32 0.0138
2021-11-15 2021-09-30 13F MID-AMER APT CMNTYS COM 59522J103 18,968 -100 -0.52 3,542 10.31 0.0130
2021-08-16 2021-06-30 13F MID-AMER APT CMNTYS COM 59522J103 19,068 -700 -3.54 3,211 12.55 0.0117
2021-05-14 2021-03-31 13F MID-AMER APT CMNTYS COM 59522J103 19,768 -850 -4.12 2,853 9.23 0.0123
2021-02-16 2020-12-31 13F MID-AMER APT CMNTYS COM 59522J103 20,618 0 0.00 2,612 9.29 0.0125
2020-11-12 2020-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 20,618 -13,848 -40.18 2,390 -39.52 0.0123
2020-08-14 2020-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 34,466 -6,112 -15.06 3,952 -5.45 0.0228
2020-05-06 2020-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 40,578 -452 -1.10 4,180 -22.74 0.0271
2020-02-13 2019-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 41,030 -186 -0.45 5,410 0.97 0.0271
2019-11-13 2019-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 41,216 0 0.00 5,358 10.41 0.0295
2019-08-16 2019-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 41,216 0 0.00 4,853 7.70 0.0269
2019-04-12 2019-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 41,216 -750 -1.79 4,506 12.20 0.0260
2019-01-30 2018-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 41,966 700 1.70 4,016 -2.85 0.0250
2018-10-15 2018-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 41,266 -1,500 -3.51 4,134 -3.97 0.0220
2018-08-01 2018-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 42,766 -200 -0.47 4,305 9.82 0.0248
2018-04-20 2018-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 42,966 -400 -0.92 3,920 -10.09 0.0223
2018-01-22 2017-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 43,366 -650 -1.48 4,360 -7.31 0.0239
2017-10-25 2017-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 44,016 500 1.15 4,704 2.60 0.0269
2017-08-10 2017-06-30 13F/A-2 MID-AMER APT CMNTYS REIT 59522J103 43,516 -9,400 -17.76 4,585 -14.82 0.0267
2017-08-01 2017-06-30 13F/A-1 MID-AMER APT CMNTYS REIT 59522J103 43,516 0 4,585 0.0267
2017-07-28 2017-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 43,516 -9,400 4,585
2017-04-25 2017-03-31 13F/A-1 MID-AMER APT CMNTYS REIT 59522J103 52,916 -444 -0.83 5,383 3.02 0.0320
2017-04-24 2017-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 54,660 5,137
2017-01-25 2016-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 53,360 -1,300 -2.38 5,225 1.71 0.0318
2016-10-20 2016-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 54,660 0 0.00 5,137 -11.66 0.0313
2016-07-14 2016-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 54,660 -300 -0.55 5,815 3.53 0.0357
2016-04-22 2016-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 54,960 -100 -0.18 5,617 12.36 0.0346
2016-01-20 2015-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 55,060 -240 -0.43 4,999 10.43 0.0307
2015-10-26 2015-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 55,300 0 0.00 4,527 12.44 0.0291
2015-07-17 2015-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 55,300 0 0.00 4,026 -5.78 0.0238
2015-04-30 2015-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 55,300 -100 -0.18 4,273 3.29 0.0246
2015-01-20 2014-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 55,400 -200 -0.36 4,137 13.34 0.0234
2014-10-23 2014-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 55,600 -200 -0.36 3,650 -10.45 0.0212
2014-08-14 2014-06-30 13F/A-1 MID-AMER APT CMNTYS REIT 59522J103 55,800 0 0.00 4,076 7.01 0.0258
2014-05-16 2014-03-31 13F MID-AMER APT CMNTYS REIT 59522J103 55,800 0 0.00 3,809 12.39 0.0251
2014-02-04 2013-12-31 13F MID-AMER APT CMNTYS REIT 59522J103 55,800 700 1.27 3,389 -1.57 0.0224
2013-10-29 2013-09-30 13F MID-AMER APT CMNTYS REIT 59522J103 55,100 700 1.29 3,443 -7.07 0.0240
2013-08-13 2013-06-30 13F MID-AMER APT CMNTYS REIT 59522J103 54,400 54,400 3,705 0.0255
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.