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Mid America Apartment Communities: Viking reports 5.07%

Affiliated managers and individuals report shared voting and dispositive authority over underlying MAA shares, creating overlapping ownership attributions.

(Neutral)

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Form Type
SCHEDULE 13G

Rhea-AI Filing Summary

Mid America Apartment Communities Inc. (MAA) common stock is reported as beneficially owned by Viking Global Investors LP and affiliated reporting persons. Viking Global Investors LP, O. Andreas Halvorsen and Rose S. Shabet each report 5,886,299 shares, or 5.07%; these are overlapping ownership attributions, not separate holdings to add. Halvorsen and Shabet are Executive Committee Members of Viking Global Partners LLC and share voting and dispositive authority; Viking Global Investors LP and both individuals report no direct ownership. MAA had 116,021,957 common shares outstanding as of July 27, 2026.

Reported beneficial ownership, Viking Global Investors LP 5,886,299 shares Also attributed to underlying holders and affiliated reporting persons
Reported ownership percentage, Viking Global Investors LP 5.07% Percentage of MAA common stock
MAA common shares outstanding 116,021,957 shares As of July 27, 2026; basis for reported ownership percentages
Reported beneficial ownership, Viking Global Performance LLC 3,785,291 shares Attributable through Viking Global Equities II LP and Viking Global Equities Master Ltd.
Shares directly held by Viking Global Equities Master Ltd. 3,709,586 shares Also attributed to affiliated reporting persons
beneficially own regulatory
"may be deemed to beneficially own the shares of Common Stock"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
shared voting power regulatory
"Shared Voting Power 5,886,299.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
shared dispositive power regulatory
"Shared Dispositive Power 5,886,299.00"
Rule 13d-3 regulatory
"Based on Rule 13d-3 under the Act"
Rule 13d-3 defines who is treated as the beneficial owner of a company’s shares for U.S. securities disclosure rules — essentially anyone who has the power to vote or direct how shares are voted, or the power to buy or sell them, even if they don’t hold the certificates. For investors this matters because crossing certain ownership thresholds triggers public filing and disclosure obligations and signals potential control or influence, much like having the keys to a car implies you can drive it even if it’s registered to someone else.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MAA shares does Viking Global Investors report?

Viking Global Investors LP reported beneficial ownership of 5,886,299 MAA common shares, equal to 5.07% of the class. The percentage is based on 116,021,957 MAA common shares outstanding as of July 27, 2026; the reported amount overlaps with affiliated entities' and individuals' attributions.

Which underlying holdings make up the 5,886,299 MAA shares reported by Viking Global?

The amount is attributed to 75,705 shares held by Viking Global Equities II LP, 3,709,586 by Viking Global Equities Master Ltd., 1,362,877 by Viking Long Fund Master Ltd., and 738,131 by Viking Global Opportunities Liquid Portfolio Sub-Master LP. The positions are also attributed to associated managers and individuals.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates





59522J103

(CUSIP Number)
09/28/2026

(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G



VIKING GLOBAL INVESTORS LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Investors LP (1)(2)
Date:10/05/2026
VIKING GLOBAL PERFORMANCE LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Performance LLC (1)(2)
Date:10/05/2026
Viking Global Equities II LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Equities II LP (1)(2)
Date:10/05/2026
Viking Global Equities Master Ltd.
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Equities Master Ltd. (1)(2)
Date:10/05/2026
Viking Long Fund GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Long Fund GP LLC (1)(2)
Date:10/05/2026
Viking Long Fund Master Ltd.
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Long Fund Master Ltd. (1)(2)
Date:10/05/2026
Viking Global Opportunities Parent GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Parent GP LLC (1)(2)
Date:10/05/2026
Viking Global Opportunities GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities GP LLC (1)(2)
Date:10/05/2026
Viking Global Opportunities Portfolio GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Portfolio GP LLC (1)(2)
Date:10/05/2026
Viking Global Opportunities Liquid Portfolio Sub-Master LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Liquid Portfolio Sub-Master LP (1)(2)
Date:10/05/2026
HALVORSEN OLE ANDREAS
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of O. Andreas Halvorsen (1)
Date:10/05/2026
Shabet Rose Sharon
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Rose S. Shabet (2)
Date:10/05/2026

Comments accompanying signature: (1) Scott M. Hendler is signing on behalf of O. Andreas Halvorsen, individually and as an Executive Committee Member of VIKING GLOBAL PARTNERS LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as an Executive Committee Member of VIKING GLOBAL PERFORMANCE LLC, on behalf of itself and VIKING GLOBAL EQUITIES II LP and VIKING GLOBAL EQUITIES MASTER LTD., and as an Executive Committee Member of VIKING LONG FUND GP LLC, on behalf of itself and VIKING LONG FUND MASTER LTD., and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES PARENT GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES GP LLC, VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC, and VIKING GLOBAL OPPORTUNITIES LIQUID PORTFOLIO SUB-MASTER LP, pursuant to an authorization and designation letter dated February 9, 2021, which was previously filed with the Commission as an exhibit to a Form 13G filed by Mr. Halvorsen on February 12, 2021 (SEC File No. 005-49737). (2) Scott M. Hendler is signing on behalf of Rose S. Shabet, individually and as an Executive Committee Member of VIKING GLOBAL PARTNERS LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as an Executive Committee Member of VIKING GLOBAL PERFORMANCE LLC, on behalf of itself and VIKING GLOBAL EQUITIES II LP and VIKING GLOBAL EQUITIES MASTER LTD., and as an Executive Committee Member of VIKING LONG FUND GP LLC, on behalf of itself and VIKING LONG FUND MASTER LTD., and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES PARENT GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES GP LLC, VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC, and VIKING GLOBAL OPPORTUNITIES LIQUID PORTFOLIO SUB-MASTER LP, pursuant to an authorization and designation letter dated February 9, 2021, which was previously filed with the Commission as an exhibit to a Form 13G filed by Ms. Shabet on February 12, 2021 (SEC File No. 005-49737).
Exhibit Information

EXHIBIT A - JOINT FILING AGREEMENT

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