American Tower Corp

AMT

Exchange: NYSE
Industry: Real Estate Investment Trusts
SEC CIK: 0001053507

SEC filings (opens in a new tab)

In the last 90 days, American Tower Corp insiders filed 1 open-market purchase and 2 sales; 1,756 institutions reported holding it in 13F filings for Q2 2026, worth $72.0B in total; Akre Capital Management is the only superinvestor holding it.

13F holders, Q1 2026

Institutional positions in American Tower Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 1,760; +9 vs. Q4 2025
Shares held: 431.5M; +28.6M (+7.1%) vs. Q4 2025
Total value: $74.4B; +$10.2B (+15.9%) vs. Q4 2025
New holders: 155; 725 more added
Sold out: 146; 651 more reduced

30 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,760 institutions

Value heldQ1 2026: $74.4B

Institutions holding AMT and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,756	$72.0B
Q1 2026	1,760	$74.4B
Q4 2025	1,781	$77.0B
Q3 2025	1,799	$82.5B
Q2 2025	1,852	$96.5B
Q1 2025	1,845	$95.0B
Q4 2024	1,798	$79.6B
Q3 2024	1,852	$99.4B
Q2 2024	1,769	$83.8B
Q1 2024	1,769	$85.0B
Q4 2023	1,802	$93.6B
Q3 2023	1,634	$69.9B
Q2 2023	1,688	$82.1B
Q1 2023	1,706	$86.3B
Q4 2022	1,711	$90.0B
Q3 2022	1,693	$91.0B
Q2 2022	1,747	$109.0B
Q1 2022	1,723	$104.3B
Q4 2021	1,799	$121.8B
Q3 2021	1,678	$109.6B
Q2 2021	1,656	$111.7B
Q1 2021	1,613	$95.8B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2025.

Institutions holding AMT in Q1 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Kozak & Associates, Inc.	1	$129	0.00%	00.0%	Unchanged
ROSS\JOHNSON & Associates LLC	1	$173	0.00%	−3−75.0%	Reduced
Meeder Asset Management Inc	1	$173	0.00%	00.0%	Unchanged
3 Factor Indexing, LLC	1	$173	0.00%	+1	New
Caitong International Asset Management Co., Ltd	2	$345	0.00%	00.0%	Unchanged
Walsh & Associates, LLC	2	$345	0.00%	+2	New
Rachor Investment Advisory Services, LLC	3	$508	0.00%	00.0%	Unchanged
Davis Capital Management	3	$518	0.00%	00.0%	Unchanged
Sofos Investments, Inc.	4	$690	0.00%	00.0%	Unchanged
Napier Financial, LLC	4	$690	0.00%	+4	New
Silver Grove Financial Group, Inc.	4	$690	0.00%	+4	New
CWM Advisors, LLC	4	$703	0.00%	00.0%	Unchanged
Caldwell Sutter Capital, Inc.	5	$863	0.00%	00.0%	Unchanged
TopTier Wealth Management, LLC	5	$863	0.00%	+5	New
Merrithew & Thorsten Inc	11	$1.00K	0.00%	00.0%	Unchanged
City State Bank	6	$1.03K	0.00%	00.0%	Unchanged
Monetary Solutions, Ltd	8	$1.38K	0.00%	00.0%	Unchanged
DecisionPoint Financial, LLC	9	$1.55K	0.00%	00.0%	Unchanged
Godfrey Financial Associates, Inc.	10	$1.73K	0.00%	+3+42.9%	Added
Quaker Wealth Management, LLC	10	$1.73K	0.00%	+6+150.0%	Added
Morton Brown Family Wealth, LLC	11	$1.90K	0.00%	00.0%	Unchanged
Sunrise Financial Services, LLC	11	$1.90K	0.00%	00.0%	Unchanged
Signature Equity Partners, LLC	12	$2.07K	0.00%	+5+71.4%	Added
Boyd Watterson Asset Management LLC	13	$2.24K	0.00%	00.0%	Unchanged
Pacifica Partners Inc.	13	$2.24K	0.00%	00.0%	Unchanged
Crewe Advisors LLC	14	$2.42K	0.00%	−18−56.3%	Reduced
TFC Financial Management	14	$2.42K	0.00%	00.0%	Unchanged
Y.D. More Investments Ltd	15	$2.59K	0.00%	−114−88.4%	Reduced
Minot DeBlois Advisors LLC	15	$2.59K	0.00%	−10−40.0%	Reduced
Portus Wealth Advisors, LLC	15	$2.59K	0.00%	+15	New
Tripletail Wealth Management, LLC	16	$2.78K	0.00%	00.0%	Unchanged
Merkkuri Wealth Advisors LLC	17	$2.96K	0.00%	+17	New
Sankala Group LLC	18	$3.09K	0.00%	00.0%	Unchanged
American Capital Advisory, LLC	19	$3.28K	0.00%	+6+46.2%	Added
Burk Holdings LLC	20	$3.45K	0.00%	+20	New
Essential Investment Partners LLC	23	$3.97K	0.00%	00.0%	Unchanged
MJT & Associates Financial Advisory Group, Inc.	23	$3.97K	0.00%	−2−8.0%	Reduced
DiNuzzo Private Wealth, Inc.	24	$4.14K	0.00%	00.0%	Unchanged
Silicon Valley Capital Partners	25	$4.29K	0.00%	+2+8.7%	Added
Innovative Asset Advisors Group, LLC	25	$4.31K	0.00%	+25	New
Copia Wealth Management	25	$4.32K	0.00%	00.0%	Unchanged
Cedar Mountain Advisors, LLC	25	$4.32K	0.00%	+25	New
Signature Resources Capital Management, LLC	26	$4.49K	0.00%	−8−23.5%	Reduced
Lloyd Advisory Services, LLC.	27	$4.66K	0.00%	−142−84.0%	Reduced
HFM Investment Advisors, LLC	27	$4.66K	0.00%	00.0%	Unchanged
Indiana Trust & Investment Management CO	27	$4.66K	0.00%	00.0%	Unchanged
Kingdom Financial Group LLC.	27	$4.66K	0.00%	+13+92.9%	Added
NorthAvenue LLC	29	$5.00K	0.00%	−6−17.1%	Reduced
Richardson Capital Management LLC	30	$5.18K	0.00%	+25+500.0%	Added
NVWM, LLC	30	$5.20K	0.00%	+12+66.7%	Added
New England Capital Financial Advisors LLC	31	$5.30K	0.00%	00.0%	Unchanged
Murphy & Mullick Capital Management Corp	31	$5.35K	0.00%	00.0%	Unchanged
Principia Wealth Advisory, LLC	31	$5.35K	0.00%	+24+342.9%	Added
Alerus Financial NA	32	$5.52K	0.00%	−187−85.4%	Reduced
CGC Financial Services, LLC	32	$5.52K	0.00%	00.0%	Unchanged
Dunhill Financial, LLC	33	$5.76K	0.00%	−27−45.0%	Reduced
Albion Financial Group	34	$5.87K	0.00%	−12−26.1%	Reduced
Intentional Wealth Strategies, LLC	34	$5.87K	0.01%	+34	New
Family Capital Trust Co	35	$6.04K	0.00%	00.0%	Unchanged
Atlantic Edge Private Wealth Management, LLC	35	$6.04K	0.00%	00.0%	Unchanged
Richardson Financial Services Inc.	35	$6.04K	0.00%	+35	New
SWAN Capital LLC	36	$6.21K	0.00%	00.0%	Unchanged
Marquette Asset Management, LLC	36	$6.21K	0.00%	+36	New
PFS Partners, LLC	37	$6.38K	0.00%	00.0%	Unchanged
Addison Advisors LLC	37	$6.39K	0.00%	+29+362.5%	Added
Clear Investment Research, LLC	37	$6.43K	0.01%	+37	New
Clark Wealth Partners	38	$6.56K	0.00%	+16+72.7%	Added
Barrett & Company, Inc.	39	$6.73K	0.00%	00.0%	Unchanged
Duncker Streett & Co Inc	39	$6.73K	0.00%	00.0%	Unchanged
Boreal Capital Management LLC	40	$6.90K	0.01%	00.0%	Unchanged
WPG Advisers, LLC	40	$6.90K	0.01%	+16+66.7%	Added
Hughes Financial Services, LLC	43	$7.42K	0.00%	+1+2.4%	Added
Nvest Wealth Strategies, Inc.	43	$7.42K	0.01%	+1+2.4%	Added
Red Tortoise LLC	44	$7.59K	0.00%	00.0%	Unchanged
WealthCollab, LLC	46	$7.94K	0.00%	00.0%	Unchanged
First PREMIER Bank	47	$8.00K	0.00%	00.0%	Unchanged
Whipplewood Advisors, LLC	47	$8.11K	0.00%	+45+2,250.0%	Added
Longview Financial Advisors LLC	47	$8.11K	0.00%	00.0%	Unchanged
City Holding Co	48	$8.28K	0.00%	00.0%	Unchanged
Bare Financial Services, Inc	48	$8.28K	0.00%	+2+4.3%	Added
Financial Perspectives, Inc	50	$8.63K	0.00%	00.0%	Unchanged
10Elms LLP	50	$8.68K	0.01%	−50−50.0%	Reduced
Cherry Tree Wealth Management, LLC	51	$8.80K	0.00%	00.0%	Unchanged
E Fund Management (Hong Kong) Co., Ltd.	51	$8.80K	0.00%	+45+750.0%	Added
Osbon Capital Management LLC	51	$8.80K	0.01%	+50+5,000.0%	Added
Synergy Investment Management, LLC	51	$8.84K	0.00%	+51	New
Clal Insurance Enterprises Holdings Ltd	52	$9.00K	0.00%	00.0%	Unchanged
RWM Asset Management, LLC	53	$9.15K	0.00%	+53	New
SJS Investment Consulting Inc.	54	$9.32K	0.00%	−620−92.0%	Reduced
Legacy Wealth Managment, LLC	54	$9.32K	0.00%	−86−61.4%	Reduced
Bangor Savings Bank	55	$9.49K	0.00%	00.0%	Unchanged
Mascoma Wealth Management LLC	55	$9.49K	0.00%	+5+10.0%	Added
Cornerstone Financial Management LLC	55	$9.49K	0.01%	+13+31.0%	Added
UMA Financial Services, Inc.	57	$9.84K	0.00%	−67−54.0%	Reduced
Bellevue Asset Management, LLC	57	$9.85K	0.00%	+1+1.8%	Added
Atomic Invest LLC	58	$9.96K	0.00%	+23+65.7%	Added
IMG Wealth Management, Inc.	58	$10.0K	0.01%	−81−58.3%	Reduced
United Community Bank	59	$10.2K	0.00%	−68−53.5%	Reduced
Guinness Atkinson Asset Management Inc	59	$10.2K	0.01%	00.0%	Unchanged
Lodestone Wealth Management LLC	59	$10.2K	0.00%	00.0%	Unchanged