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

SecurityMAA / Mid-America Apartment Communities, Inc.
InstitutionPrincipal Street Partners, LLC
Latest Disclosed Ownership28,769 shares
Latest Disclosed Value $ 3,513,270
Principal Street Partners, LLC reports 0.10% increase in ownership of MAA / Mid-America Apartment Communities, Inc.

On May 15, 2026 - Principal Street Partners, LLC filed a 13F-HR form disclosing ownership of 28,769 shares of Mid-America Apartment Communities, Inc. (US:MAA) valued at $3,513,270 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 28,739 shares of Mid-America Apartment Communities, Inc.. This represents a change in shares of 0.10% during the quarter. The current value of the position is $3,813,043 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-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 28,769 30 0.10 3,513 -12.00 0.5735
2026-02-17 2025-12-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 28,739 -8,981 -23.81 3,992 -24.25 0.6734
2025-11-14 2025-09-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,720 -37,814 -50.06 5,271 -52.86 0.8412
2025-08-14 2025-06-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 75,534 37,767 100.00 11,180 76.66 1.0963
2025-05-15 2025-03-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,767 -94 -0.25 6,329 8.13 1.1771
2025-02-18 2024-12-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,861 0 0.00 5,852 8.39 1.1508
2024-11-13 2024-09-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,861 0 0.00 5,399 0.00 0.8828
2024-08-14 2024-06-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,861 0 0.00 5,399 5.26 0.9671
2024-05-15 2024-03-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,861 -28 -0.07 5,129 0.69 0.9696
2024-02-07 2023-12-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,889 -37,881 -49.99 5,095 -47.74 1.2291
2023-11-01 2023-09-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 75,770 37,777 99.43 9,748 68.95 1.9313
2023-08-21 2023-06-30 13F/A-1 MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,993 84 0.22 5,770 0.77 1.3713
2023-08-15 2023-06-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,909 0 5,726 1.4471
2023-05-11 2023-03-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,909 0 0.00 5,726 -3.80 1.4471
2023-02-15 2022-12-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,909 -19 -0.05 5,951 1.17 1.4995
2022-11-14 2022-09-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,928 0 0.00 5,882 -11.22 1.5676
2022-08-15 2022-06-30 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,928 30 0.08 6,625 -16.54 1.7162
2022-05-05 2022-03-31 13F MID-AMERICA APARTMENT COMMUNITIES Common stock 59522J103 37,898 -114 -0.30 7,938 -8.99 1.8200
2022-02-07 2021-12-31 13F Mid-America Apartment Communities Common stock 59522J103 38,012 101 0.27 8,722 23.19 2.0995
2021-11-10 2021-09-30 13F Mid-America Apartment Communities Common stock 59522J103 37,911 0 0.00 7,080 10.88 1.9288
2021-08-10 2021-06-30 13F Mid-America Apartment Communities Common stock 59522J103 37,911 13 0.03 6,385 16.71 1.6845
2021-05-13 2021-03-31 13F Mid-America Apartment Common stock 59522J103 37,898 60 0.16 5,471 14.12 0.7060
2021-02-16 2020-12-31 13F Mid-Amer Apt Cmntys Common stock 59522J103 37,838 0 0.00 4,794 9.28 1.4682
2020-11-12 2020-09-30 13F Mid-Amer Apt Cmntys Common stock 59522J103 37,838 0 0.00 4,387 1.11 1.5413
2020-08-14 2020-06-30 13F Mid-America Apartment Communit Common stock 59522J103 37,838 37,838 4,339 1.6209
2020-03-04 2019-12-31 13F MID AMER APT CMNTYS INC COM Common stock 59522J103 0 -72,838 -100.00 0 -100.00
2019-11-14 2019-09-30 13F MID AMER APT CMNTYS INC COM Common stock 59522J103 72,838 0 0.00 9,470 10.41 2.3712
2019-08-15 2019-06-30 13F MID-AMER APT CMNTYS Common stock 59522J103 72,838 72,838 8,577 4.7317
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.