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American Tower Corp

AMTNYSEReal Estate Investment TrustsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Oct 27, 2026Score 7/302% above fair value
$188.30+0.52 (+0.28%)

Close on Nov 2, 2026Market cap $87.74BP/E 25.9Yield 3.61%

American Tower Start-Up Capital Projects by Quarter

Start-Up Capital Projects ($M) ($M)

QuarterlyAnnual

American Tower Start-Up Capital Projects: $9.20M in Q3 2026, down 51.8% from a year earlier. That is the lowest of the 39 quarters on record here.

Latest, Q3 2026
9.20
Period ended Sep 30, 2026
Change on a year earlier
-51.8%
19.1 in Q3 2025
History
39 quarters
Since Q1 2017
Sources
39
Documents cited below

Where the Q3 2026 figure comes from

Calculated from reported figures: quarter = year-to-date (9M 10-Q) − previous year-to-date (6M 10-Q)

Source: American Tower SEC Form 10-Q FY2026Q3 (0001053507-26-000157, filed 2026-10-27) ↗

Reported in SEC Form 10-Q & Form 10-K (MD&A — Capital Expenditures Table).

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedStart-Up Capital Projects ($M) ($M)Year on yearSource
Q3 2026Sep 30, 20269.20-51.8%American Tower SEC Form 10-Q FY2026Q3 (0001053507-26-000157, filed 2026-10-27) ↗
Q2 2026Jun 30, 202610.4-47.7%American Tower SEC Form 10-Q FY2026Q2 (0001053507-26-000133, filed 2026-07-28) ↗
Q1 2026Mar 31, 202611.7+11.4%American Tower SEC Form 10-Q FY2026Q1 (0001053507-26-000099, filed 2026-04-28) ↗
Q4 2025Dec 31, 202520.5-17.0%American Tower SEC Form 10-K FY2025 (0001053507-26-000035, filed 2026-02-24) ↗
Q3 2025Sep 30, 202519.1+0.5%American Tower SEC Form 10-Q FY2025Q3 (0001053507-25-000149, filed 2025-10-28) ↗
Q2 2025Jun 30, 202519.9-13.1%American Tower SEC Form 10-Q FY2025Q2 (0001053507-25-000120, filed 2025-07-29) ↗
Q1 2025Mar 31, 202510.5-28.6%American Tower SEC Form 10-Q FY2025Q1 (0001053507-25-000102, filed 2025-04-29) ↗
Q4 2024Dec 31, 202424.7-13.0%American Tower SEC Form 10-K FY2024 (0001053507-25-000025, filed 2025-02-25) ↗
Q3 2024Sep 30, 202419-48.5%American Tower SEC Form 10-Q FY2024Q3 (0001053507-24-000130, filed 2024-10-29) ↗
Q2 2024Jun 30, 202422.9-39.7%American Tower SEC Form 10-Q FY2024Q2 (0001053507-24-000105, filed 2024-07-30) ↗
Q1 2024Mar 31, 202414.7-40.7%American Tower SEC Form 10-Q FY2024Q1 (0001053507-24-000084, filed 2024-04-30) ↗
Q4 2023Dec 31, 202328.4-74.0%American Tower SEC Form 10-K FY2023 (0001053507-24-000011, filed 2024-02-27) ↗
Q3 2023Sep 30, 202336.9-39.2%American Tower SEC Form 10-Q FY2023Q3 (0001053507-23-000161, filed 2023-10-26) ↗
Q2 2023Jun 30, 202338-23.8%American Tower SEC Form 10-Q FY2023Q2 (0001053507-23-000142, filed 2023-07-27) ↗
Q1 2023Mar 31, 202324.8-33.3%American Tower SEC Form 10-Q FY2023Q1 (0001053507-23-000114, filed 2023-04-26) ↗
Q4 2022Dec 31, 2022109+39.0%American Tower SEC Form 10-K FY2022 (0001053507-23-000023, filed 2023-02-23) ↗

Cite this data

StockData. (2026). American Tower Start-Up Capital Projects ($M), quarterly Q1 2017–Q3 2026 [Data set]. Compiled from American Tower SEC filings and investor materials. https://stockdatahq.com/stocks/amt/kpis/capex-startup

See every metric in the American Tower KPI table. Data updated Nov 1, 2026.