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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
30 Sep 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 29 Oct 2025
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q2 2025 and Q3 2025; 21 listed it in both
Shares listed
49,518,939
combined, among listed positions
Reported value
$9.5bn
combined, at the quarter end

Among the 95 comparable managers: 16 buyers (opened or added shares) and 15 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 Q3 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

30 of 30 holders

ActionFiling
Fidelity (FMR LLC)12,247,533$2.4bn0.12%Trimmed-1,342,12713 Nov 2025 (the filing on sec.gov)
Invesco Ltd6,888,633$1.3bn0.21%Added+208,10913 Nov 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc6,197,015$1.2bn0.13%Trimmed-1,429,31714 Nov 2025 (the filing on sec.gov)
Capital Research Global Investors4,924,771$947m0.18%Added+15,14513 Nov 2025 (the filing on sec.gov)
Capital World Investors4,208,709$809m0.11%Added+168,46413 Nov 2025 (the filing on sec.gov)
MFS Investment Management3,018,979$581m0.18%Trimmed-586,08029 Oct 2025 (the filing on sec.gov)
Arrowstreet Capital LP2,796,007$538m0.34%Added+724,50413 Nov 2025 (the filing on sec.gov)
Wellington Management Group LLP2,597,658$500m0.09%Trimmed-4,968,41314 Nov 2025 (the filing on sec.gov)
Neuberger Berman Group LLC1,706,273$328m0.24%Trimmed-47,89227 Oct 2026 (the filing on sec.gov)
Two Sigma Investments LP804,761$155m0.23%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Point72 Asset Management LP620,120$119m0.20%Trimmed-477,26014 Nov 2025 (the filing on sec.gov)
Man Group PLC603,043$116m0.20%Added+234,98214 Nov 2025 (the filing on sec.gov)
AllianceBernstein LP542,119$104munder 0.1%Trimmed-972,79214 Nov 2025 (the filing on sec.gov)
Akre Capital Management LLC442,843$85m0.85%Trimmed-472,40613 Nov 2025 (the filing on sec.gov)
Voloridge Investment Management LLC437,763$84m0.28%Newnew14 Nov 2025 (the filing on sec.gov)
Squarepoint Ops LLC367,094$71m0.07%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Janus Henderson Group Ltd256,747$49munder 0.1%Trimmed-1,812,40014 Nov 2025 (the filing on sec.gov)
Two Sigma Advisers LP212,500$41m0.08%Newnew14 Nov 2025 (the filing on sec.gov)
Verition Fund Management LLC127,961$25m0.10%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Acadian Asset Management LLC108,951$21munder 0.1%Addedn.a.13 Nov 2025 (the filing on sec.gov)
Tudor Investment Corp105,643$20munder 0.1%Newnew9 Dec 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC70,212$14m0.08%Trimmed-84,11314 Nov 2025 (the filing on sec.gov)
Baillie Gifford & Co65,268$13munder 0.1%Trimmed-2,55031 Oct 2025 (the filing on sec.gov)
Quantbot Technologies LP52,029$10m0.27%Newnew12 Nov 2025 (the filing on sec.gov)
Winton Group Ltd34,200$6.6m0.25%Added+20,54413 Nov 2025 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q2 2025 to Q3 2025, 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 (5)

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 →