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AMT in the 13F filings

American Tower Corp · CUSIP 03027X100

Sector · Real estateTheme · Real estate investment trusts
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Dec 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 31 Jan 2025
Managers listing it
26
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q3 2024 and Q4 2024; 22 listed it in both
Shares listed
63,226,979
combined, among listed positions
Reported value
$11.6bn
combined, at the quarter end

Among the 94 comparable managers: 14 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing AMT in Q4 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

26 of 26 holders

ActionFiling
Fidelity (FMR LLC)11,179,269$2.1bn0.12%Added+537,1365 Nov 2026 (the filing on sec.gov)
Capital Research Global Investors8,563,046$1.6bn0.32%Added+3,421,41313 Feb 2025 (the filing on sec.gov)
Wellington Management Group LLP8,084,243$1.5bn0.27%Trimmed-3,296,43212 Feb 2025 (the filing on sec.gov)
Invesco Ltd5,941,586$1.1bn0.20%Added+455,22513 Feb 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc5,834,413$1.1bn0.12%Trimmed-660,52314 Feb 2025 (the filing on sec.gov)
Akre Capital Management LLC5,503,413$1.0bn8.73%Trimmed-549,11913 Feb 2025 (the filing on sec.gov)
Capital World Investors4,920,100$902m0.14%Added+3,032,00513 Feb 2025 (the filing on sec.gov)
MFS Investment Management3,394,966$623m0.20%Trimmed-142,92612 Feb 2025 (the filing on sec.gov)
AllianceBernstein LP2,197,552$403m0.14%Trimmed-695,62412 Feb 2025 (the filing on sec.gov)
Janus Henderson Group Ltd2,016,255$370m0.19%Trimmed-208,24214 Feb 2025 (the filing on sec.gov)
Neuberger Berman Group LLC1,534,335$281m0.22%Trimmed-168,30513 Feb 2025 (the filing on sec.gov)
Arrowstreet Capital LP1,515,588$278m0.22%Added+160,51912 Feb 2025 (the filing on sec.gov)
Viking Global Investors LP897,340$165m0.53%Newnew14 Feb 2025 (the filing on sec.gov)
Point72 Asset Management LP653,045$120m0.26%Added+429,94114 Feb 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC312,680$57m0.33%Added+244,17814 Feb 2025 (the filing on sec.gov)
ExodusPoint Capital Management LP240,634$44m0.30%Added+52,15512 Feb 2025 (the filing on sec.gov)
Walleye Capital LLC94,832$17munder 0.1%Added+18,67913 Feb 2025 (the filing on sec.gov)
Tudor Investment Corp86,282$16m0.06%Trimmed-8,09714 Feb 2025 (the filing on sec.gov)
Baillie Gifford & Co76,215$14munder 0.1%Trimmed-42,12031 Jan 2025 (the filing on sec.gov)
Verition Fund Management LLC71,575$13m0.05%Addedn.a.14 Feb 2025 (the filing on sec.gov)
GAMCO Investors Inc30,417$5.6m0.06%Trimmed-1,27113 Feb 2025 (the filing on sec.gov)
Woodline Partners LP28,456$5.2munder 0.1%Newnew14 Feb 2025 (the filing on sec.gov)
Quantbot Technologies LP18,182$3.3m0.12%Added+10,25611 Feb 2025 (the filing on sec.gov)
Brevan Howard Capital Management LP12,966$2.4munder 0.1%New+7,70614 Feb 2025 (the filing on sec.gov)
Freestone Grove Partners LP12,644$2.3munder 0.1%Heldn.a.14 Feb 2025 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2024 to Q4 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (2)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
28 in Q3 2024 to 31 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AMT by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201322$7.6bnn.a.n.a.
Q3 201324$8.5bnn.a.n.a.
Q4 201317$9.1bnn.a.n.a.
Q1 201420$8.9bnn.a.n.a.
Q2 201420$9.3bnn.a.n.a.
Q3 201426$9.3bnn.a.n.a.
Q4 201420$9.0bnn.a.n.a.
Q1 201527$9.1bnn.a.n.a.
Q2 201521$9.5bnn.a.n.a.
Q3 201521$9.2bnn.a.n.a.
Q4 201525$10.2bnn.a.n.a.
Q1 201624$11.0bnn.a.n.a.
Q2 201623$12.5bnn.a.n.a.
Q3 201623$12.1bnn.a.n.a.
Q4 201626$11.5bnn.a.n.a.
Q1 201726$12.8bnn.a.n.a.
Q2 201727$14.7bnn.a.n.a.
Q3 201733$15.0bnn.a.n.a.
Q4 201725$14.7bnn.a.n.a.
Q1 201821$15.3bnn.a.n.a.
Q2 201819$14.5bnn.a.n.a.
Q3 201820$14.4bnn.a.n.a.
Q4 201818$16.0bnn.a.n.a.
Q1 201920$19.8bnn.a.n.a.
Q2 201926$19.4bnn.a.n.a.
Q3 201925$19.3bnn.a.n.a.
Q4 201922$19.2bnn.a.n.a.
Q1 202031$17.5bnn.a.n.a.
Q2 202027$20.0bnn.a.n.a.
Q3 202034$18.1bnn.a.n.a.
Q4 202029$15.3bnn.a.n.a.
Q1 202121$15.3bnn.a.n.a.
Q2 202123$17.2bnn.a.n.a.
Q3 202128$16.9bnn.a.n.a.
Q4 202124$17.1bnn.a.n.a.
Q1 202222$13.4bnn.a.n.a.
Q2 202225$15.2bnn.a.n.a.
Q3 202227$12.7bnn.a.n.a.
Q4 202222$13.0bnn.a.n.a.
Q1 202332$12.6bnn.a.n.a.
Q2 202328$11.7bnn.a.n.a.
Q3 202329$9.5bnn.a.n.a.
Q4 202323$12.8bn717
Q1 202426$11.7bn1511
Q2 202429$11.3bn1714
Q3 202428$14.0bn1611
Q4 202426$11.6bn1413
Q1 202528$13.9bn1513
Q2 202528$13.8bn1810
Q3 202530$9.5bn1615
Q4 202534$9.0bn2420
Q1 202629$8.4bn1925
Q2 202631$8.6bn2318

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

AMT and WELL →AMT and EQIX →AMT and PLD →Choose a stock to compare with AMT →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own AMT, latest filings →Back to the 13F Explorer →