Ticker · CUSIP 03027X100

AMT

REIT
AMERICAN TOWER CORP NEW
Real Estate·REIT - Specialty
···Share
Holders (tracked)
28
Combined shares
22,742,899
Combined value
$3.99B
Last close
$182.36
Quarter
2025Q4
Price · 1Y$182.36-32.37 (-15.08%)H $225.84 · L $165.62 · Avg Vol 2.9M
Congress sell
$180.00$200.00$220.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
28242024Q12025Q4
Price is +3.9% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

30 events
  1. T. Rowe Price trimmed2026-02-17
    −530,095 shares · 2025Q4
    Position
  2. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +49,500 shares · 2025Q4
    Position
  3. D.E. Shaw & Co. added2026-02-17
    +1,227,413 shares · 2025Q4
    Position
  4. AQR Capital Management added2026-02-17
    +1,102,275 shares · 2025Q4
    Position
  5. Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
    −266,240 shares · 2025Q4
    Position
  6. Wellington Management trimmed2026-02-17
    −1,865,771 shares · 2025Q4
    Position
  7. Two Sigma Investments added2026-02-17
    +411,663 shares · 2025Q4
    Position
  8. Izzy Englander (Millennium Mgmt) added2026-02-17
    +233,773 shares · 2025Q4
    Position
  9. Steve Cohen (Point72) trimmed2026-02-17
    −542,271 shares · 2025Q4
    Position
  10. Ken Griffin (Citadel Advisors) added2026-02-17
    +544,089 shares · 2025Q4
    Position
  11. Ray Dalio (Bridgewater Associates) added2026-02-13
    +56,611 shares · 2025Q4
    Position
  12. Chuck Akre (Akre Capital) trimmed2026-02-13
    −187,576 shares · 2025Q4
    Position
  13. Renaissance Technologies added2026-02-12
    +87,100 shares · 2025Q4
    Position
  14. Norges Bank (Norway SWF) opened position2026-02-10
    +6,670,729 shares · 2025Q4
    Position
  15. Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
    −55,475 shares · 2025Q4
    Position
  16. Mario Gabelli (GAMCO) trimmed2026-02-05
    −723 shares · 2025Q4
    Position
  17. Baillie Gifford & Co trimmed2026-01-23
    −9,087 shares · 2025Q4
    Position
  18. AQR Capital Management trimmed2025-11-14
    −29,445 shares · 2025Q3
    Position
  19. Izzy Englander (Millennium Mgmt) added2025-11-14
    +27,729 shares · 2025Q3
    Position
  20. Steve Cohen (Point72) trimmed2025-11-14
    −477,260 shares · 2025Q3
    Position
  21. Two Sigma Investments added2025-11-14
    +708,158 shares · 2025Q3
    Position
  22. D.E. Shaw & Co. added2025-11-14
    +146,217 shares · 2025Q3
    Position
  23. Andreas Halvorsen (Viking Global) exited2025-11-14
    −2,797,125 shares · 2025Q3
    Position
  24. T. Rowe Price trimmed2025-11-14
    −1,429,317 shares · 2025Q3
    Position
  25. Wellington Management trimmed2025-11-14
    −4,968,413 shares · 2025Q3
    Position
  26. Ron Baron (Baron Capital / BAMCO) trimmed2025-11-14
    −33,714 shares · 2025Q3
    Position
  27. Ray Dalio (Bridgewater Associates) added2025-11-13
    +26,203 shares · 2025Q3
    Position
  28. Chuck Akre (Akre Capital) trimmed2025-11-13
    −472,406 shares · 2025Q3
    Position
  29. Jeremy Grantham (GMO) added2025-11-13
    +1,024 shares · 2025Q3
    Position
  30. 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.
InvestorFirst inCost basisReturnPosition value today
Mario Gabelli (GAMCO)2016Q4$167.87+8.6%$4.5M
Wellington Management2016Q1$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 Management2016Q1$177.85+2.5%$266.0M
Renaissance Technologies2016Q1$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 Investments2016Q1$188.36-3.2%$221.8M
Baillie Gifford & Co2021Q3$189.55-3.8%$10.2M
T. Rowe Price2016Q1$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
Added to7
Trimmed8
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
23
$986.69B
2022Q2
22
$1.04T
2022Q3
23
$14.83B
2022Q4
23
$14.98B
2023Q1
25
$14.55B
2023Q2
27
$13.86B
2023Q3
26
$9.87B
2023Q4
22
$12.88B
2024Q1
24
$14.74B
2024Q2
25
$14.16B
2024Q3
26
$8.00B
2024Q4
25
$4.33B
2025Q1
25
$5.66B
2025Q2
25
$6.76B
2025Q3
24
$2.97B
2025Q4
28
$3.99B
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2025-07-11Ritchie John TorresSell$1K – $15KPDF ↗
2025-04-08Rob BresnahanBuy$1K – $15KPDF ↗
2025-04-03Dwight EvansSell (P)$1K – $15KPDF ↗
2025-01-15Julie JohnsonSell$1K – $15KPDF ↗
2024-09-26Ritchie John TorresBuy$1K – $15KPDF ↗
2023-03-15Richard Dean Dr McCormickBuy$1K – $15KPDF ↗

Who owns AMT

28 super-investors · 2025Q4
Tracked stake
22.74M
shares
Combined value
$3.99B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added13Trim10Held1
#ManagerSharesValue
1Norges Bank
Norway SWF
6.67M$1.17B
2T. Rowe Price5.67M$995M
3Ken Fisher
Fisher Asset Mgmt
1.78M$312M
4AQR Capital Management1.46M$256M
5D.E. Shaw & Co.1.38M$242M
6Two Sigma Investments1.22M$214M
7Ken Griffin
Citadel Advisors
1.10M$193M
8Wellington Management731.9K$128M
9Izzy Englander
Millennium Mgmt
516.7K$91M
10Ken Griffin
Citadel Advisors
470.1K$83M
11Ken Griffin
Citadel Advisors
453.8K$80M
12Ron Baron
Baron Capital / BAMCO
267.8K$47M
13Chuck Akre
Akre Capital
255.3K$45M
14Renaissance Technologies162.0K$28M
15Ray Dalio
Bridgewater Associates
86.3K$15M
16Steve Cohen
Point72
77.8K$14M
17D.E. Shaw & Co.62.6K$11M
18Baillie Gifford & Co56.2K$10M
19Paul Tudor Jones
Tudor Investment
55.8K$10M
20Izzy Englander
Millennium Mgmt
54.5K$10M
21Steve Cohen
Point72
52.3K$9M
22Paul Tudor Jones
Tudor Investment
49.5K$9M
23Paul Tudor Jones
Tudor Investment
43.1K$8M
24Mario Gabelli
GAMCO
24.6K$4M
25Steve Cohen
Point72
24.3K$4M
26D.E. Shaw & Co.15.9K$3M
27Izzy Englander
Millennium Mgmt
6.8K$1M
28Jeremy Grantham
GMO
6.4K$1M

Recent moves

20 transactions
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