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

SecurityMAA / Mid-America Apartment Communities, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership10,051 shares
Latest Disclosed Value $ 1,227,428
Summit Trail Advisors, Llc reports 51.51% increase in ownership of MAA / Mid-America Apartment Communities, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 10,051 shares of Mid-America Apartment Communities, Inc. (US:MAA) valued at $1,227,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,634 shares of Mid-America Apartment Communities, Inc.. This represents a change in shares of 51.51% during the quarter. The current value of the position is $1,332,160 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)
2026-05-12 2026-03-31 13F MID-AMER APT CMNTYS COM 59522J103 10,051 3,417 51.51 1,227 33.22 0.0176
2026-02-17 2025-12-31 13F MID-AMER APT CMNTYS COM 59522J103 6,634 -1,019 -13.32 922 -13.84 0.0159
2025-11-14 2025-09-30 13F MID-AMER APT CMNTYS COM 59522J103 7,653 2,132 38.62 1,069 30.84 0.0148
2025-08-14 2025-06-30 13F MID-AMER APT CMNTYS COM 59522J103 5,521 1,120 25.45 817 10.85 0.0140
2025-04-28 2025-03-31 13F MID-AMER APT CMNTYS COM 59522J103 4,401 2,274 106.91 738 124.70 0.0243
2025-01-29 2024-12-31 13F MID-AMER APT CMNTYS COM 59522J103 2,127 2,127 329 0.0121
2018-11-14 2018-09-30 13F Mid-Amer Apt CMNTYS Inc Com EQUITY 59522J103 0 -420 -100.00 0 -100.00
2018-08-10 2018-06-30 13F Mid-Amer Apt CMNTYS Inc Com EQUITY 59522J103 420 -17,157 -97.61 42 133.33 0.0147
2018-05-21 2018-03-31 13F MID-AMER APT CMNTYS INC COM EQUITY 59522J103 17,577 17,399 9,774.72 18 5.88 0.0028
2018-02-14 2017-12-31 13F MID AMER APT CMNTYS INC COM Units 59522J103 178 178 17 0.0021
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.