Ticker · CUSIP 03027X100

AMT

REIT

AMERICAN TOWER CORP NEW

Real Estate·REIT - Specialty

···Share

Holders (tracked)

Combined shares

22,742,899

Combined value

$3.99B

Last close

$182.36

Quarter

2025Q4

Price is +3.9% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$182.36-32.37 (-15.08%)H $225.84 · L $165.62 · Avg Vol 2.9M

Congress sell

Tracked holders · last 8 quarters

+4 vs previous quarter over the last 8.

SEC event timeline

30 events

T. Rowe Price trimmed2026-02-17
−530,095 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+49,500 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+1,227,413 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+1,102,275 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
−266,240 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−1,865,771 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+411,663 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+233,773 shares · 2025Q4
Position
Steve Cohen (Point72) trimmed2026-02-17
−542,271 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+544,089 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+56,611 shares · 2025Q4
Position
Chuck Akre (Akre Capital) trimmed2026-02-13
−187,576 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+87,100 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+6,670,729 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−55,475 shares · 2025Q4
Position
Mario Gabelli (GAMCO) trimmed2026-02-05
−723 shares · 2025Q4
Position
Baillie Gifford & Co trimmed2026-01-23
−9,087 shares · 2025Q4
Position
AQR Capital Management trimmed2025-11-14
−29,445 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+27,729 shares · 2025Q3
Position
Steve Cohen (Point72) trimmed2025-11-14
−477,260 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+708,158 shares · 2025Q3
Position
D.E. Shaw & Co. added2025-11-14
+146,217 shares · 2025Q3
Position
Andreas Halvorsen (Viking Global) exited2025-11-14
−2,797,125 shares · 2025Q3
Position
T. Rowe Price trimmed2025-11-14
−1,429,317 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−4,968,413 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) trimmed2025-11-14
−33,714 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) added2025-11-13
+26,203 shares · 2025Q3
Position
Chuck Akre (Akre Capital) trimmed2025-11-13
−472,406 shares · 2025Q3
Position
Jeremy Grantham (GMO) added2025-11-13
+1,024 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−6,207,018 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for AMT →

Follow-the-investor returns

If you'd copied each holder of AMT…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Mario Gabelli (GAMCO)	2016Q4	$167.87	+8.6%	$4.5M
Wellington Management	2016Q1	$167.98	+8.6%	$133.5M
Izzy Englander (Millennium Mgmt)	2016Q1	$175.96	+3.6%	$9.9M
Izzy Englander (Millennium Mgmt)	2016Q1	$175.96	+3.6%	$9.9M
Izzy Englander (Millennium Mgmt)	2016Q1	$175.96	+3.6%	$9.9M
D.E. Shaw & Co.	2016Q1	$176.11	+3.6%	$2.9M
D.E. Shaw & Co.	2016Q1	$176.11	+3.6%	$2.9M
D.E. Shaw & Co.	2016Q1	$176.11	+3.6%	$2.9M
Steve Cohen (Point72)	2016Q2	$176.25	+3.5%	$4.4M
Steve Cohen (Point72)	2016Q2	$176.25	+3.5%	$4.4M
Steve Cohen (Point72)	2016Q2	$176.25	+3.5%	$4.4M
AQR Capital Management	2016Q1	$177.85	+2.5%	$266.0M
Renaissance Technologies	2016Q1	$182.58	-0.1%	$29.5M
Ken Griffin (Citadel Advisors)	2016Q1	$183.15	-0.4%	$82.8M
Ken Griffin (Citadel Advisors)	2016Q1	$183.15	-0.4%	$82.8M
Ken Griffin (Citadel Advisors)	2016Q1	$183.15	-0.4%	$82.8M
Ray Dalio (Bridgewater Associates)	2016Q1	$183.34	-0.5%	$15.7M
Two Sigma Investments	2016Q1	$188.36	-3.2%	$221.8M
Baillie Gifford & Co	2021Q3	$189.55	-3.8%	$10.2M
T. Rowe Price	2016Q1	$192.06	-5.0%	$1.03B
Paul Tudor Jones (Tudor Investment)	2016Q1	$200.43	-9.0%	$9.0M
Paul Tudor Jones (Tudor Investment)	2016Q1	$200.43	-9.0%	$9.0M
Paul Tudor Jones (Tudor Investment)	2016Q1	$200.43	-9.0%	$9.0M
Ron Baron (Baron Capital / BAMCO)	2016Q1	$214.39	-14.9%	$48.8M
Jeremy Grantham (GMO)	2024Q3	$218.08	-16.4%	$1.2M
Ken Fisher (Fisher Asset Mgmt)	2017Q3	$224.37	-18.7%	$324.5M
Chuck Akre (Akre Capital)	2016Q1	$291.19	-37.4%	$46.6M
Norges Bank (Norway SWF)	2016Q1	$4454.04	-95.9%	$1.22B

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Norges Bank (Norway SWF)
+6,670,729
$1.17B
Paul Tudor Jones (Tudor Investment)
+49,500
$8.7M

Added to7

D.E. Shaw & Co.
+1,227,413
$215.5M
AQR Capital Management
+1,102,275
$193.5M
Ken Griffin (Citadel Advisors)
+544,089
$95.5M
Two Sigma Investments
+411,663
$72.3M
Izzy Englander (Millennium Mgmt)
+233,773
$41.0M
Renaissance Technologies
+87,100
$15.3M
Ray Dalio (Bridgewater Associates)
+56,611
$9.9M

Trimmed8

Wellington Management
−1,865,771
$327.6M
Steve Cohen (Point72)
−542,271
$95.2M
Ron Baron (Baron Capital / BAMCO)
−266,240
$46.7M
Chuck Akre (Akre Capital)
−187,576
$32.9M
Ken Fisher (Fisher Asset Mgmt)
−55,475
$9.7M
Baillie Gifford & Co
−9,087
$1.6M
Mario Gabelli (GAMCO)
−723
$127K
T. Rowe Price
−530,095
$93K

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	23	65,153,550	$986.69B	—
2022Q2	22	69,129,467	$1.04T	-1
2022Q3	23	69,059,593	$14.83B	+1
2022Q4	23	70,725,361	$14.98B	—
2023Q1	25	71,220,551	$14.55B	+2
2023Q2	27	71,446,813	$13.86B	+2
2023Q3	26	59,999,377	$9.87B	-1
2023Q4	22	59,653,184	$12.88B	-4
2024Q1	24	74,574,470	$14.74B	+2
2024Q2	25	72,860,863	$14.16B	+1
2024Q3	26	34,405,241	$8.00B	+1
2024Q4	25	23,615,568	$4.33B	-1
2025Q1	25	26,022,536	$5.66B	—
2025Q2	25	30,590,442	$6.76B	—
2025Q3	24	15,420,584	$2.97B	-1
2025Q4	28	22,742,899	$3.99B	+4

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-07-11	Ritchie John Torres	Sell	$1K – $15K	PDF ↗
2025-04-08	Rob Bresnahan	Buy	$1K – $15K	PDF ↗
2025-04-03	Dwight Evans	Sell (P)	$1K – $15K	PDF ↗
2025-01-15	Julie Johnson	Sell	$1K – $15K	PDF ↗
2024-09-26	Ritchie John Torres	Buy	$1K – $15K	PDF ↗
2023-03-15	Richard Dean Dr McCormick	Buy	$1K – $15K	PDF ↗

Who owns AMT

28 super-investors · 2025Q4

Tracked stake

22.74M

Combined value

$3.99B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New4Added13Trim10Held1

#	Manager	Shares	Value	% of book	Last action
1	Norges Bank Norway SWF	6.67M	$1.17B	0.1%	New+6.67M
2	T. Rowe Price	5.67M	$995M	0.1%	Trim−530.1K
3	Ken Fisher Fisher Asset Mgmt	1.78M	$312M	0.1%	Trim−55.5K
4	AQR Capital Management	1.46M	$256M	0.1%	Added+1.10M
5	D.E. Shaw & Co.	1.38M	$242M	0.1%	Added+1.23M
6	Two Sigma Investments	1.22M	$214M	0.3%	Added+411.7K
7	Ken Griffin Citadel Advisors	1.10M	$193M	0.0%	Added+544.1K
8	Wellington Management	731.9K	$128M	0.0%	Trim−1.87M
9	Izzy Englander Millennium Mgmt	516.7K	$91M	0.0%	Added+233.8K
10	Ken Griffin Citadel Advisors	470.1K	$83M	0.0%	Added+544.1K
11	Ken Griffin Citadel Advisors	453.8K	$80M	0.0%	Added+544.1K
12	Ron Baron Baron Capital / BAMCO	267.8K	$47M	0.1%	Trim−266.2K
13	Chuck Akre Akre Capital	255.3K	$45M	0.5%	Trim−187.6K
14	Renaissance Technologies	162.0K	$28M	0.0%	Added+87.1K
15	Ray Dalio Bridgewater Associates	86.3K	$15M	0.1%	Added+56.6K
16	Steve Cohen Point72	77.8K	$14M	0.0%	Trim−542.3K
17	D.E. Shaw & Co.	62.6K	$11M	0.0%	Added+1.23M
18	Baillie Gifford & Co	56.2K	$10M	0.0%	Trim−9.1K
19	Paul Tudor Jones Tudor Investment	55.8K	$10M	0.0%	New+49.5K
20	Izzy Englander Millennium Mgmt	54.5K	$10M	0.0%	Added+233.8K
21	Steve Cohen Point72	52.3K	$9M	0.0%	Trim−542.3K
22	Paul Tudor Jones Tudor Investment	49.5K	$9M	0.0%	New+49.5K
23	Paul Tudor Jones Tudor Investment	43.1K	$8M	0.0%	New+49.5K
24	Mario Gabelli GAMCO	24.6K	$4M	0.0%	Trim−723
25	Steve Cohen Point72	24.3K	$4M	0.0%	Trim−542.3K
26	D.E. Shaw & Co.	15.9K	$3M	0.0%	Added+1.23M
27	Izzy Englander Millennium Mgmt	6.8K	$1M	0.0%	Added+233.8K
28	Jeremy Grantham GMO	6.4K	$1M	0.0%	Held

Recent moves

20 transactions

TRIMT. Rowe Price
−530,095 · 2025Q4
TRIMWellington Management
−1,865,771 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+233,773 · 2025Q4
ADDD.E. Shaw & Co.
+1,227,413 · 2025Q4
TRIMSteve Cohen (Point72)
−542,271 · 2025Q4
ADDTwo Sigma Investments
+411,663 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+544,089 · 2025Q4
ADDAQR Capital Management
+1,102,275 · 2025Q4
TRIMRon Baron (Baron Capital / BAMCO)
−266,240 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+49,500 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+56,611 · 2025Q4
TRIMChuck Akre (Akre Capital)
−187,576 · 2025Q4
ADDRenaissance Technologies
+87,100 · 2025Q4
NEWNorges Bank (Norway SWF)
+6,670,729 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−55,475 · 2025Q4
TRIMMario Gabelli (GAMCO)
−723 · 2025Q4
TRIMBaillie Gifford & Co
−9,087 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+27,729 · 2025Q3
TRIMSteve Cohen (Point72)
−477,260 · 2025Q3
ADDTwo Sigma Investments
+708,158 · 2025Q3

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