AMT — AMERICAN TOWER CORP /MA/Today's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
69
all time
Members · 12m
3
0 buys · 3 sells · by trade date
Latest filing
07-21
2026-07-21
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
11
13F holders
1,357
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 69Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 8 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

8 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in AMT

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing AMT in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Alan Armstrong R–OK1−$15.0K to −$1.0K2
Dwight Evans D–PA-31−$15.0K to −$1.0K1
Richard McCormick R–GA-71−$15.0K to −$1.0K3

3 members

Congressional disclosures

Newest filed firstAll 69 rows ↗
Latest congressional filings mentioning AMT
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-07-21Alan Armstrong R–OKSELLTraded 03-27 LATE·116d$1K–$15K
2026-05-15Dwight Evans D–PA-3SELLTraded 05-11 +4d$1K–$15K
2026-05-12Richard McCormick R–GA-7SELLTraded 04-17 +25d$1K–$15K
2025-09-17Richard McCormick R–GA-7BUYTraded 2023-03-15 LATE·917d$1K–$15K
2025-08-20Ritchie Torres D–NY-15SELLTraded 07-11 +40d$1K–$15K
2025-08-20Ritchie Torres D–NY-15BUYTraded 2024-09-26 LATE·328d$1K–$15K
2025-06-22Jefferson Shreve R–IN-6SELLTraded 05-12 +41d$15K–$50K
2025-05-08Robert P. Bresnahan, Jr. R–PA-8BUYTraded 04-08 +30d$1K–$15K
2025-04-17Dwight Evans D–PA-3SELL partial (partial sale)Traded 04-03 +14d$1K–$15K
2025-02-12Julie Johnson D–TX-32SELL JT (jointly owned)Traded 01-15 +28d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

All holders ↗
Top institutional holders of AMT for quarter 2026-03-31, 1–25 of 1,357 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date (the full holders view shows them), but no document links — the EDGAR link opens the filer's 13F list·§
1BlackRock, Inc.$7.8B1
derived ·§ EDGAR ↗
2VANGUARD CAPITAL MANAGEMENT LLC$5.2B1
derived ·§ EDGAR ↗
3VANGUARD PORTFOLIO MANAGEMENT LLC$4.8B1
derived ·§ EDGAR ↗
4STATE STREET CORP$3.7B1
derived ·§ EDGAR ↗
5GEODE CAPITAL MANAGEMENT, LLC$2.4B1
derived ·§ EDGAR ↗
6FMR LLC$2.0B1
derived ·§ EDGAR ↗
7MORGAN STANLEY$1.7B1
derived ·§ EDGAR ↗
8DEUTSCHE BANK AG\$1.3B1
derived ·§ EDGAR ↗
9LAZARD ASSET MANAGEMENT LLC$1.3B1
derived ·§ EDGAR ↗
10Invesco Ltd.$1.3B1
derived ·§ EDGAR ↗
11PRINCIPAL FINANCIAL GROUP INC$1.0B1
derived ·§ EDGAR ↗
12DIMENSIONAL FUND ADVISORS LP$1.0B1
derived ·§ EDGAR ↗
13Capital World Investors$978M1
derived ·§ EDGAR ↗
14NORTHERN TRUST CORP$922M1
derived ·§ EDGAR ↗
15CHARLES SCHWAB INVESTMENT MANAGEMENT INC$904M1
derived ·§ EDGAR ↗
16Legal & General Group Plc$833M1
derived ·§ EDGAR ↗
17BANK OF AMERICA CORP /DE/$779M1
derived ·§ EDGAR ↗
18UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$749M1
derived ·§ EDGAR ↗
19ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$724M1
derived ·§ EDGAR ↗
20Capital Research Global Investors$708M1
derived ·§ EDGAR ↗
21Nuveen, LLC$671M1
derived ·§ EDGAR ↗
22Amundi$661M1
derived ·§ EDGAR ↗
23Clearbridge Investments, LLC$636M1
derived ·§ EDGAR ↗
24WELLS FARGO & COMPANY/MN$604M1
derived ·§ EDGAR ↗
25UBS Group AG$602M1
derived ·§ EDGAR ↗
Show the top 500 of 1,357 holders
Truncated by Public Filings. Top 500 of 1,357 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · AMT

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
1 Tudor Investment Corp $18.1M held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · AMERICAN TOWER CORP

Merged timeline of congressional filings and notable-manager moves on AMT
DateWhoChangeSize
2026-05-15Tudor Investment Corp 13FADD+55,578 sh
2026-05-15Bridgewater Associates 13FTRIM−29,367 sh
2026-05-15Gotham Asset Management 13FTRIM−77,765 sh
2026-05-15Moore Capital Management 13FEXIT−1,418 sh
2026-05-14Caxton Associates 13FTRIM−1,425 sh

5 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)0 buy / 3 sell
Congress net ($ bound)−$45.0K to −$3.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.