Cohen Klingenstein LLC

SEC CIK: 0001453620
Latest filing: Jul 15, 2026

SEC filings (opens in a new tab)

AMT holding history

American Tower Corp in every 13F filed by Cohen Klingenstein LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AMT overview All 13F holders of AMT Full Q2 2026 holdings

Shares (Q2 2026): 60,914
Value: $9.96M
% of portfolio: 0.3%
Quarters held: 22; Since Q1 2021

Holdings of AMT by Cohen Klingenstein LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	60,914	$9.96M	0.3%	00.0%	Unchanged	Holders
Q1 2026	60,914	$10.5M	0.3%	00.0%	Unchanged	Holders
Q4 2025	60,914	$10.7M	0.3%	00.0%	Unchanged	Holders
Q3 2025	60,914	$11.7M	0.4%	00.0%	Unchanged	Holders
Q2 2025	60,914	$13.5M	0.4%	00.0%	Unchanged	Holders
Q1 2025	60,914	$13.3M	0.5%	00.0%	Unchanged	Holders
Q4 2024	60,914	$11.2M	0.4%	−10,710−15.0%	Reduced	Holders
Q3 2024	71,624	$16.7M	0.6%	00.0%	Unchanged	Holders
Q2 2024	71,624	$13.9M	0.5%	−2,497−3.4%	Reduced	Holders
Q1 2024	74,121	$14.6M	0.5%	−2,428−3.2%	Reduced	Holders
Q4 2023	76,549	$16.5M	0.7%	00.0%	Unchanged	Holders
Q3 2023	76,549	$12.6M	0.6%	−1,471−1.9%	Reduced	Holders
Q2 2023	78,020	$15.1M	0.7%	00.0%	Unchanged	Holders
Q1 2023	78,020	$15.9M	0.7%	−194−0.2%	Reduced	Holders
Q4 2022	78,214	$16.6M	0.8%	00.0%	Unchanged	Holders
Q3 2022	78,214	$16.8M	0.9%	−395−0.5%	Reduced	Holders
Q2 2022	78,609	$20.1M	1.0%	00.0%	Unchanged	Holders
Q1 2022	78,609	$19.7M	0.8%	00.0%	Unchanged	Holders
Q4 2021	78,609	$23.0M	0.9%	−8,175−9.4%	Reduced	Holders
Q3 2021	86,784	$23.0M	1.0%	−16,000−15.6%	Reduced	Holders
Q2 2021	102,784	$27.8M	1.2%	−950−0.9%	Reduced	Holders
Q1 2021	103,734	$24.8M	1.1%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.