Great Diamond Partners
AMT icon

Great Diamond Partners’s American Tower AMT Stock Holding History

Great Diamond Partners’s Portfolio AMT Stock Details AMT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$360K Sell
2,199
-35
-2% -$6.01K 0.06% 200
2026
Q2 		$365K Sell
2,234
-15
-0.7% -$2.7K 0.06% 195
2026
Q1 		$388K Sell
2,249
-9
-0.4% -$1.62K 0.07% 181
2025
Q4 		$396K Sell
2,258
-85
-4% -$15.5K 0.08% 170
2025
Q3 		$451K Sell
2,343
-22
-0.9% -$4.58K 0.09% 160
2025
Q2 		$523K Buy
+2,365
New +$511K 0.11% 147
2023
Q1 		– Sell
-5,808
Closed -$1.23M – 215
2022
Q4 		$1.23M Sell
5,808
-247
-4% -$51.4K 0.38% 65
2022
Q3 		$1.3M Sell
6,055
-41
-0.7% -$10.5K 0.44% 59
2022
Q2 		$1.56M Buy
6,096
+120
+2% +$30.1K 0.52% 51
2022
Q1 		$1.5M Sell
5,976
-263
-4% -$64.2K 0.42% 61
2021
Q4 		$1.82M Sell
6,239
-1,334
-18% -$364K 0.47% 58
2021
Q3 		$2.01M Buy
7,573
+242
+3% +$69K 0.55% 50
2021
Q2 		$1.98M Sell
7,331
-30
-0.4% -$7.65K 0.56% 52
2021
Q1 		$1.76M Sell
7,361
-2,797
-28% -$623K 0.54% 55
2020
Q4 		$2.27M Sell
10,158
-1,314
-11% -$305K 0.72% 40
2020
Q3 		$2.77M Buy
11,472
+420
+4% +$106K 1.02% 25
2020
Q2 		$2.86M Sell
11,052
-507
-4% -$125K 1.18% 21
2020
Q1 		$2.52M Buy
11,559
+558
+5% +$130K 1.3% 22
2019
Q4 		$2.53M Buy
+11,001
New +$2.4M 0.96% 24

Other funds holding AMT

Geode Capital Management
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Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Union Bancaire Privee
Union Bancaire Privee Geneva 1, Switzerland $10.3B AUM 29.94% 1-Year Est. Return
Davenport & Co
Davenport & Co Richmond, Virginia $19.9B AUM 12.67% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Great Diamond Partners's AMT Position: Q3 2026 in Review

Great Diamond Partners reduced its American Tower (AMT) stake by 1.6% in Q3 2026, selling an estimated $6.01K and leaving 2,199 shares worth $360K. The position accounts for 0.06% of the portfolio, ranked #200.

Great Diamond Partners first reported a position in AMT in Q4 2019 and has held it in 19 quarters since. The position peaked at $2.86M in Q2 2020. 938 funds tracked by Wall St. Rank hold AMT as of Q3 2026.

  • Great Diamond Partners held 2,199 shares of American Tower worth $360K as of Q3 2026.
  • Great Diamond Partners sold 35 American Tower shares in Q3 2026, an estimated $6.01K.
  • American Tower made up 0.06% of Great Diamond Partners's portfolio in Q3 2026, its #200 holding.
  • Great Diamond Partners first reported a position in American Tower in Q4 2019 and has held it in 19 quarters since.
  • Great Diamond Partners's American Tower position peaked at $2.86M in Q2 2020.
  • 938 funds tracked by Wall St. Rank held American Tower as of Q3 2026.

Based on Great Diamond Partners's 13F filing for Q3 2026, filed 13 Oct 2026.